~hp/moony.lv2

bda1e99a84fe4e448cf011a2822ad1de096dcb7f — Hanspeter Portner 6 months ago e591ce9 + e9f1340
Merge commit 'e9f1340d5dbe043454db371036e9b5e4e5288757' as 'subprojects/osc.lv2'
A subprojects/osc.lv2/.builds/alpine-latest.yml => subprojects/osc.lv2/.builds/alpine-latest.yml +61 -0
@@ 0,0 1,61 @@
# SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
# SPDX-License-Identifier: CC0-1.0
---
image: alpine/latest
packages:
- meson
- clang16-analyzer
- llvm16
- valgrind
- lv2-dev
- serd-dev
- sord-dev
- sratom-dev
- cairo-dev
- git-subtree
- reuse
- hut
- jq
environment:
  project: osc.lv2
secrets:
- 0545580c-42ac-4700-b322-4e9df924eb07
- 5fe806cd-3af4-4588-9898-8115d9262144
- d6d10b2a-542a-4b45-b1be-6ef30a8ab558
- 3de1773e-3503-46f5-8ab4-5212026517f4
- 8c1363a3-86c2-46e5-9b52-79db433fa884
sources:
- https://git.open-music-kontrollers.ch/~hp/ci
tasks:
- gcc: |-
    . ~/ci/activate
    ci-meson gcc setup
    ci-meson gcc build
    ci-meson gcc test
- clang: |-
    . ~/ci/activate
    ci-meson clang setup
    ci-meson clang build
    ci-meson clang test
- analyzer: |-
    . ~/ci/activate
    ci-meson analyzer setup
    ci-meson analyzer build
    ci-meson analyzer test
- merge: |-
    . ~/ci/activate
    if ! ci-isrelease; then
      complete-build
    fi
    ci-subtreemerge
- sign: |-
    . ~/ci/activate
    if ! ci-istag; then
      complete-build
    fi
    ci-archivesign
triggers:
- action: email
  condition: failure
  to: <dev@open-music-kontrollers.ch>
...

A subprojects/osc.lv2/.gitignore => subprojects/osc.lv2/.gitignore +5 -0
@@ 0,0 1,5 @@
# SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
# SPDX-License-Identifier: CC0-1.0

tags
*.taghl

A subprojects/osc.lv2/LICENSES/Artistic-2.0.txt => subprojects/osc.lv2/LICENSES/Artistic-2.0.txt +85 -0
@@ 0,0 1,85 @@
The Artistic License 2.0

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Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.

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A subprojects/osc.lv2/LICENSES/CC0-1.0.txt => subprojects/osc.lv2/LICENSES/CC0-1.0.txt +121 -0
@@ 0,0 1,121 @@
Creative Commons Legal Code

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A subprojects/osc.lv2/README.md => subprojects/osc.lv2/README.md +17 -0
@@ 0,0 1,17 @@
<!--
  -- SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
  -- SPDX-License-Identifier: CC0-1.0
  -->
# osc.lv2

## Open Sound Control Extension for the LV2 Plugin Specification

### Build / test

	git clone https://git.open-music-kontrollers.ch/~hp/osc.lv2
	cd osc.lv2
	meson build
	cd build
	ninja -j4
	ninja test


A subprojects/osc.lv2/meson.build => subprojects/osc.lv2/meson.build +75 -0
@@ 0,0 1,75 @@
# SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
# SPDX-License-Identifier: CC0-1.0

project('osc.lv2', 'c', default_options : [
	'buildtype=release',
	'warning_level=3',
	'werror=false',
	'b_lto=true',
	'c_std=c11'])

build_tests = get_option('build-tests')

reuse = find_program('reuse', required : false)

add_project_arguments('-D_GNU_SOURCE', language : 'c')

cc = meson.get_compiler('c')

lv2_dep = dependency('lv2')

lib_deps = [
  lv2_dep
]

lib_incs = [
  include_directories('')
]

lib_srcs = [
  join_paths('src', 'forge.c'),
  join_paths('src', 'osc.c'),
  join_paths('src', 'reader.c'),
  join_paths('src', 'stream.c'),
  join_paths('src', 'util.c'),
  join_paths('src', 'writer.c')
]

lib_args = [
]

osc_lv2 = declare_dependency(
  compile_args : lib_args,
  include_directories : lib_incs,
  dependencies : lib_deps,
  sources : lib_srcs)

if build_tests
  thread_dep = dependency('threads')

  test_deps = [
    thread_dep,
    osc_lv2
  ]

  test_srcs = [
    join_paths('test', 'osc.c')
  ]

  test_osc = executable('Test', test_srcs,
    dependencies : test_deps,
    install : false)

  # FIXME start virautl serial pair before test
  # socat -d -d pty,raw,echo=0 pty,raw,echo=0
  test('Test', test_osc,
    timeout : 240,
    suite : ['memcheck'])

  if reuse.found()
    test('REUSE', reuse, args : [
      '--root', meson.current_source_dir(),
      'lint'
    ])
  endif
endif

A subprojects/osc.lv2/meson_options.txt => subprojects/osc.lv2/meson_options.txt +9 -0
@@ 0,0 1,9 @@
# SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
# SPDX-License-Identifier: CC0-1.0

option('build-tests',
	type : 'boolean',
	value : true,
  yield : true)

option('version', type : 'string', value : '0.1.189')

A subprojects/osc.lv2/osc.lv2/forge.h => subprojects/osc.lv2/osc.lv2/forge.h +98 -0
@@ 0,0 1,98 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#ifndef LV2_OSC_FORGE_H
#define LV2_OSC_FORGE_H

#include <osc.lv2/osc.h>

#include <lv2/atom/forge.h>

#ifdef __cplusplus
extern "C" {
#endif

#define lv2_osc_forge_int(forge, osc_urid, val) \
	lv2_atom_forge_int((forge), (val))

#define lv2_osc_forge_float(forge, osc_urid, val) \
	lv2_atom_forge_float((forge), (val))

#define lv2_osc_forge_string(forge, osc_urid, val, len) \
	lv2_atom_forge_string((forge), (val), (len))

#define lv2_osc_forge_long(forge, osc_urid, val) \
	lv2_atom_forge_long((forge), (val))

#define lv2_osc_forge_double(forge, osc_urid, val) \
	lv2_atom_forge_double((forge), (val))

#define lv2_osc_forge_true(forge, osc_urid) \
	lv2_atom_forge_bool((forge), 1)

#define lv2_osc_forge_false(forge, osc_urid) \
	lv2_atom_forge_bool((forge), 0)

#define lv2_osc_forge_nil(forge, osc_urid) \
	lv2_atom_forge_literal((forge), "", 0, (osc_urid)->OSC_Nil, 0)

#define lv2_osc_forge_impulse(forge, osc_urid) \
	lv2_atom_forge_literal((forge), "", 0, (osc_urid)->OSC_Impulse, 0)

#define lv2_osc_forge_symbol(forge, osc_urid, val) \
	lv2_atom_forge_urid((forge), (val))

LV2_Atom_Forge_Ref
lv2_osc_forge_chunk(LV2_Atom_Forge *forge, LV2_URID type,
	const uint8_t *buf, uint32_t size);

LV2_Atom_Forge_Ref
lv2_osc_forge_midi(LV2_Atom_Forge *forge, LV2_OSC_URID *osc_urid,
	const uint8_t *buf, uint32_t size);

LV2_Atom_Forge_Ref
lv2_osc_forge_blob(LV2_Atom_Forge* forge, LV2_OSC_URID *osc_urid,
	const uint8_t *buf, uint32_t size);

LV2_Atom_Forge_Ref
lv2_osc_forge_char(LV2_Atom_Forge* forge, LV2_OSC_URID *osc_urid,
	char val);

LV2_Atom_Forge_Ref
lv2_osc_forge_rgba(LV2_Atom_Forge* forge, LV2_OSC_URID *osc_urid,
	uint8_t r, uint8_t g, uint8_t b, uint8_t a);

LV2_Atom_Forge_Ref
lv2_osc_forge_timetag(LV2_Atom_Forge *forge, LV2_OSC_URID *osc_urid,
	const LV2_OSC_Timetag *timetag);

LV2_Atom_Forge_Ref
lv2_osc_forge_bundle_head(LV2_Atom_Forge* forge, LV2_OSC_URID *osc_urid,
	LV2_Atom_Forge_Frame frame [2], const LV2_OSC_Timetag *timetag);

LV2_Atom_Forge_Ref
lv2_osc_forge_message_head(LV2_Atom_Forge *forge, LV2_OSC_URID *osc_urid,
	LV2_Atom_Forge_Frame frame [2], const char *path);

void
lv2_osc_forge_pop(LV2_Atom_Forge *forge, LV2_Atom_Forge_Frame frame [2]);

LV2_Atom_Forge_Ref
lv2_osc_forge_message_varlist(LV2_Atom_Forge *forge, LV2_OSC_URID *osc_urid,
	const char *path, const char *fmt, va_list args);

LV2_Atom_Forge_Ref
lv2_osc_forge_message_vararg(LV2_Atom_Forge *forge, LV2_OSC_URID *osc_urid,
	const char *path, const char *fmt, ...);

LV2_Atom_Forge_Ref
lv2_osc_forge_packet(LV2_Atom_Forge *forge, LV2_OSC_URID *osc_urid,
	LV2_URID_Map *map, const uint8_t *buf, size_t size);

#ifdef __cplusplus
} // extern "C"
#endif

#endif // LV2_OSC_FORGE_H

A subprojects/osc.lv2/osc.lv2/osc.h => subprojects/osc.lv2/osc.lv2/osc.h +144 -0
@@ 0,0 1,144 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#ifndef LV2_OSC_H
#define LV2_OSC_H

#include <lv2/urid/urid.h>
#include <lv2/atom/atom.h>
#include <lv2/midi/midi.h>

#define LV2_OSC_URI                 "http://open-music-kontrollers.ch/lv2/osc"
#define LV2_OSC_PREFIX              LV2_OSC_URI "#"	

#define LV2_OSC__Event              LV2_OSC_PREFIX "Event" // atom message type 
#define LV2_OSC__schedule           LV2_OSC_PREFIX "schedule" // feature

#define LV2_OSC__Packet             LV2_OSC_PREFIX "Packet" // atom object type

#define LV2_OSC__Bundle             LV2_OSC_PREFIX "Bundle" // atom object type
#define LV2_OSC__bundleTimetag      LV2_OSC_PREFIX "bundleTimetag" // atom object property
#define LV2_OSC__bundleItems        LV2_OSC_PREFIX "bundleItems"

#define LV2_OSC__Message            LV2_OSC_PREFIX "Message" // atom object type
#define LV2_OSC__messagePath        LV2_OSC_PREFIX "messagePath" // atom object property
#define LV2_OSC__messageArguments   LV2_OSC_PREFIX "messageArguments" // atom object property 

#define LV2_OSC__Timetag            LV2_OSC_PREFIX "Timetag" // atom object type
#define LV2_OSC__timetagIntegral    LV2_OSC_PREFIX "timetagIntegral" // atom object property
#define LV2_OSC__timetagFraction    LV2_OSC_PREFIX "timetagFraction" // atom object property 

#define LV2_OSC__Nil                LV2_OSC_PREFIX "Nil" // atom literal type
#define LV2_OSC__Impulse            LV2_OSC_PREFIX "Impulse" // atom literal type
#define LV2_OSC__Char               LV2_OSC_PREFIX "Char" // atom literal type
#define LV2_OSC__RGBA               LV2_OSC_PREFIX "RGBA" // atom literal type

#define LV2_OSC_PADDED_SIZE(size) ( ( (size_t)(size) + 3 ) & ( ~3 ) )
#define LV2_OSC_IMMEDIATE         1ULL

#ifdef __cplusplus
extern "C" {
#endif

typedef void *LV2_OSC_Schedule_Handle;

typedef double (*LV2_OSC_Schedule_OSC2Frames)(
	LV2_OSC_Schedule_Handle handle,
	uint64_t timetag);

typedef uint64_t (*LV2_OSC_Schedule_Frames2OSC)(
	LV2_OSC_Schedule_Handle handle,
	double frames);

typedef struct _LV2_OSC_Schedule {
	LV2_OSC_Schedule_Handle handle;
	LV2_OSC_Schedule_OSC2Frames osc2frames;
	LV2_OSC_Schedule_Frames2OSC frames2osc;
} LV2_OSC_Schedule;

typedef enum LV2_OSC_Type {
	LV2_OSC_INT32   =	'i',
	LV2_OSC_FLOAT   =	'f',
	LV2_OSC_STRING  =	's',
	LV2_OSC_BLOB    =	'b',
	
	LV2_OSC_TRUE    =	'T',
	LV2_OSC_FALSE   =	'F',
	LV2_OSC_NIL     =	'N',
	LV2_OSC_IMPULSE =	'I',
	
	LV2_OSC_INT64   =	'h',
	LV2_OSC_DOUBLE  =	'd',
	LV2_OSC_TIMETAG =	't',
	
	LV2_OSC_SYMBOL  =	'S',
	LV2_OSC_CHAR    =	'c',
	LV2_OSC_MIDI    =	'm',
	LV2_OSC_RGBA    =	'r'
} LV2_OSC_Type;

union swap32_t {
	uint32_t u;

	int32_t i;
	float f;
};

union swap64_t {
	uint64_t u;

	int64_t h;
	uint64_t t;
	double d;
};

typedef struct _LV2_OSC_Timetag {
	uint32_t integral;
	uint32_t fraction;
} LV2_OSC_Timetag;

typedef struct _LV2_OSC_URID {
	LV2_URID OSC_Packet;

	LV2_URID OSC_Bundle;
	LV2_URID OSC_bundleTimetag;
	LV2_URID OSC_bundleItems;

	LV2_URID OSC_Message;
	LV2_URID OSC_messagePath;
	LV2_URID OSC_messageArguments;

	LV2_URID OSC_Timetag;
	LV2_URID OSC_timetagIntegral;
	LV2_URID OSC_timetagFraction;

	LV2_URID OSC_Nil;
	LV2_URID OSC_Impulse;
	LV2_URID OSC_Char;
	LV2_URID OSC_RGBA;

	LV2_URID MIDI_MidiEvent;

	LV2_URID ATOM_Int;
	LV2_URID ATOM_Long;
	LV2_URID ATOM_String;
	LV2_URID ATOM_Literal;
	LV2_URID ATOM_Float;
	LV2_URID ATOM_Double;
	LV2_URID ATOM_URID;
	LV2_URID ATOM_Bool;
	LV2_URID ATOM_Tuple;
	LV2_URID ATOM_Object;
	LV2_URID ATOM_Chunk;
} LV2_OSC_URID;

void
lv2_osc_urid_init(LV2_OSC_URID *osc_urid, LV2_URID_Map *map);

#ifdef __cplusplus
} // extern "C"
#endif

#endif // LV2_OSC_H

A subprojects/osc.lv2/osc.lv2/reader.h => subprojects/osc.lv2/osc.lv2/reader.h +191 -0
@@ 0,0 1,191 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#ifndef LV2_OSC_READER_H
#define LV2_OSC_READER_H

#include <osc.lv2/osc.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef struct _LV2_OSC_Tree LV2_OSC_Tree;
typedef struct _LV2_OSC_Reader LV2_OSC_Reader;
typedef struct _LV2_OSC_Item LV2_OSC_Item;
typedef struct _LV2_OSC_Arg LV2_OSC_Arg;
typedef void (*LV2_OSC_Branch)(LV2_OSC_Reader *reader, LV2_OSC_Arg *arg,
	const LV2_OSC_Tree *tree, void *data);

struct _LV2_OSC_Tree {
	const char *name;
	const LV2_OSC_Tree *trees;
	LV2_OSC_Branch branch;
};

struct _LV2_OSC_Reader {
	const uint8_t *buf;
	const uint8_t *ptr;
	const uint8_t *end;
};

struct _LV2_OSC_Item {
	int32_t size;
	const uint8_t *body;

	uint64_t timetag;
	const uint8_t *end;
};

struct _LV2_OSC_Arg {
	const char *type;
	int32_t size;
	union {
		int32_t i;
		float f;
		const char *s;
		const uint8_t *b;

		int64_t h;
		double d;
		uint64_t t;

		const uint8_t *m;
		const char *S;
		char c;
		struct {
			uint8_t R;
			uint8_t G;
			uint8_t B;
			uint8_t A;
		}; // anonymous RGBA struct
	};

	const char *path;
	const uint8_t *end;
};

void
lv2_osc_reader_initialize(LV2_OSC_Reader *reader, const uint8_t *buf, size_t size);

bool
lv2_osc_reader_overflow(LV2_OSC_Reader *reader, size_t size);

bool
lv2_osc_reader_be32toh(LV2_OSC_Reader *reader, union swap32_t *s32);

bool
lv2_osc_reader_be64toh(LV2_OSC_Reader *reader, union swap64_t *s64);

bool
lv2_osc_reader_get_int32(LV2_OSC_Reader *reader, int32_t *i);

bool
lv2_osc_reader_get_float(LV2_OSC_Reader *reader, float *f);

bool
lv2_osc_reader_get_int64(LV2_OSC_Reader *reader, int64_t *h);

bool
lv2_osc_reader_get_timetag(LV2_OSC_Reader *reader, uint64_t *t);

bool
lv2_osc_reader_get_double(LV2_OSC_Reader *reader, double *d);

bool
lv2_osc_reader_get_string(LV2_OSC_Reader *reader, const char **s);

bool
lv2_osc_reader_get_symbol(LV2_OSC_Reader *reader, const char **S);

bool
lv2_osc_reader_get_midi(LV2_OSC_Reader *reader, const uint8_t **m);

bool
lv2_osc_reader_get_blob(LV2_OSC_Reader *reader, int32_t *len, const uint8_t **body);

bool
lv2_osc_reader_get_rgba(LV2_OSC_Reader *reader, uint8_t *r, uint8_t *g, uint8_t *b, uint8_t *a);

bool
lv2_osc_reader_get_char(LV2_OSC_Reader *reader, char *c);

LV2_OSC_Item *
lv2_osc_reader_item_raw(LV2_OSC_Reader *reader, LV2_OSC_Item *itm);

LV2_OSC_Item *
lv2_osc_reader_item_begin(LV2_OSC_Reader *reader, LV2_OSC_Item *itm, size_t len);

bool
lv2_osc_reader_item_is_end(LV2_OSC_Reader *reader, LV2_OSC_Item *itm);

LV2_OSC_Item *
lv2_osc_reader_item_next(LV2_OSC_Reader *reader, LV2_OSC_Item *itm);

#define OSC_READER_BUNDLE_BEGIN(reader, len) \
	lv2_osc_reader_item_begin( \
		(reader), \
		&(LV2_OSC_Item){ .size = 0, .body = NULL, .timetag = 1ULL, .end = NULL }, \
		len)

#define OSC_READER_BUNDLE_ITERATE(reader, itm) \
	for(itm = itm; \
		itm && !lv2_osc_reader_item_is_end((reader), (itm)); \
		itm = lv2_osc_reader_item_next((reader), (itm)))

#define OSC_READER_BUNDLE_FOREACH(reader, itm, len) \
	for(LV2_OSC_Item *(itm) = OSC_READER_BUNDLE_BEGIN((reader), (len)); \
		itm && !lv2_osc_reader_item_is_end((reader), (itm)); \
		itm = lv2_osc_reader_item_next((reader), (itm)))

LV2_OSC_Arg *
lv2_osc_reader_arg_raw(LV2_OSC_Reader *reader, LV2_OSC_Arg *arg);

LV2_OSC_Arg *
lv2_osc_reader_arg_begin(LV2_OSC_Reader *reader, LV2_OSC_Arg *arg, size_t len);

bool
lv2_osc_reader_arg_is_end(LV2_OSC_Reader *reader, LV2_OSC_Arg *arg);

LV2_OSC_Arg *
lv2_osc_reader_arg_next(LV2_OSC_Reader *reader, LV2_OSC_Arg *arg);

#define OSC_READER_MESSAGE_BEGIN(reader, len) \
	lv2_osc_reader_arg_begin( \
		(reader), \
		&(LV2_OSC_Arg){ .type = NULL, .size = 0, .path = NULL, .end = NULL }, \
		len)

#define OSC_READER_MESSAGE_ITERATE(reader, arg) \
	for(arg = arg; \
		arg && !lv2_osc_reader_arg_is_end((reader), (arg)); \
		arg = lv2_osc_reader_arg_next((reader), (arg)))

#define OSC_READER_MESSAGE_FOREACH(reader, arg, len) \
	for(LV2_OSC_Arg *(arg) = OSC_READER_MESSAGE_BEGIN((reader), (len)); \
		arg && !lv2_osc_reader_arg_is_end((reader), (arg)); \
		arg = lv2_osc_reader_arg_next((reader), (arg)))

bool
lv2_osc_reader_arg_varlist(LV2_OSC_Reader *reader, const char *fmt, va_list args);

bool
lv2_osc_reader_arg_vararg(LV2_OSC_Reader *reader, const char *fmt, ...);

bool
lv2_osc_reader_is_bundle(LV2_OSC_Reader *reader);

bool
lv2_osc_reader_is_message(LV2_OSC_Reader *reader);

void
lv2_osc_reader_match(LV2_OSC_Reader *reader, size_t len,
	const LV2_OSC_Tree *trees, void *data);

#ifdef __cplusplus
} // extern "C"
#endif

#endif // LV2_OSC_READER_H

A subprojects/osc.lv2/osc.lv2/stream.h => subprojects/osc.lv2/osc.lv2/stream.h +111 -0
@@ 0,0 1,111 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#ifndef LV2_OSC_STREAM_H
#define LV2_OSC_STREAM_H

#include <sys/socket.h>
#include <netinet/in.h>
#include <limits.h>

#include <osc.lv2/osc.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef void *
(*LV2_OSC_Stream_Write_Request)(void *data, size_t minimum, size_t *maximum);

typedef void
(*LV2_OSC_Stream_Write_Advance)(void *data, size_t written);

typedef const void *
(*LV2_OSC_Stream_Read_Request)(void *data, size_t *toread);

typedef void
(*LV2_OSC_Stream_Read_Advance)(void *data);

typedef struct _LV2_OSC_Address LV2_OSC_Address;
typedef struct _LV2_OSC_Driver LV2_OSC_Driver;
typedef struct _LV2_OSC_Stream LV2_OSC_Stream;

struct _LV2_OSC_Address {
	socklen_t len;
	union {
		struct sockaddr_in in4;
		struct sockaddr_in6 in6;
	};
};

struct _LV2_OSC_Driver {
	LV2_OSC_Stream_Write_Request write_req;
	LV2_OSC_Stream_Write_Advance write_adv;
	LV2_OSC_Stream_Read_Request read_req;
	LV2_OSC_Stream_Read_Advance read_adv;
};

struct _LV2_OSC_Stream {
	int socket_family;
	int socket_type;
	int protocol;
	bool server;
	bool slip;
	bool serial;
	bool connected;
	int sock;
	int fd;
	LV2_OSC_Address self;
	LV2_OSC_Address peer;
	const LV2_OSC_Driver *driv;
	void *data;
	uint8_t tx_buf [0x4000];
	uint8_t rx_buf [0x4000];
	size_t rx_off;
	char url [PATH_MAX];
};

typedef enum _LV2_OSC_Enum {
	LV2_OSC_NONE = 0x000000,

	LV2_OSC_SEND = 0x800000,
	LV2_OSC_RECV = 0x400000,
	LV2_OSC_CONN = 0x200000,

	LV2_OSC_ERR  = 0x00ffff
} LV2_OSC_Enum;

#define LV2_OSC_STREAM_ERRNO(EV, ERRNO) ( (EV & (~LV2_OSC_ERR)) | (ERRNO) )

int
lv2_osc_stream_deinit(LV2_OSC_Stream *stream);

int
lv2_osc_stream_init(LV2_OSC_Stream *stream, const char *url,
	const LV2_OSC_Driver *driv, void *data);

size_t
lv2_osc_slip_encode_size(const uint8_t *dst, size_t len);

size_t
lv2_osc_slip_encode_inline(uint8_t *dst, size_t len);

size_t 
lv2_osc_slip_decode_inline(uint8_t *dst, size_t len, size_t *size);

LV2_OSC_Enum
lv2_osc_stream_run(LV2_OSC_Stream *stream);

int
lv2_osc_stream_get_file_descriptors(LV2_OSC_Stream *stream, int fds [2]);

LV2_OSC_Enum
lv2_osc_stream_pollin(LV2_OSC_Stream *stream, int timeout_ms);

#ifdef __cplusplus
} // extern "C"
#endif

#endif // LV2_OSC_STREAM_H

A subprojects/osc.lv2/osc.lv2/util.h => subprojects/osc.lv2/osc.lv2/util.h +146 -0
@@ 0,0 1,146 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#ifndef LV2_OSC_UTIL_H
#define LV2_OSC_UTIL_H

#include <osc.lv2/osc.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef void (*LV2_OSC_Method)(const char *path,
	const LV2_Atom_Tuple *arguments, void *data);

typedef struct _LV2_OSC_Hook LV2_OSC_Hook;

struct _LV2_OSC_Hook {
	const char *name;
	const LV2_OSC_Hook *hooks;
	LV2_OSC_Method method;
	void *data;
};

bool
lv2_osc_pattern_match(const char *from, const char *name, size_t len);

void
lv2_osc_hooks(const char *path, const LV2_Atom_Tuple *arguments, void *data);

bool
lv2_osc_check_path(const char *path);

bool
lv2_osc_check_fmt(const char *format, int offset);

uint64_t 
lv2_osc_timetag_parse(const LV2_OSC_Timetag *timetag);

LV2_OSC_Timetag *
lv2_osc_timetag_create(LV2_OSC_Timetag *timetag, uint64_t tt);

#define LV2_OSC_TIMETAG_CREATE(tt) \
	lv2_osc_timetag_create(&(LV2_OSC_Timetag){.integral = 0, .fraction = 0}, (tt))

bool
lv2_osc_is_packet_type(LV2_OSC_URID *osc_urid, LV2_URID type);

bool
lv2_osc_is_bundle_type(LV2_OSC_URID *osc_urid, LV2_URID type);

bool
lv2_osc_is_message_type(LV2_OSC_URID *osc_urid, LV2_URID type);

bool
lv2_osc_is_message_or_bundle_type(LV2_OSC_URID *osc_urid, LV2_URID type);

LV2_OSC_Type
lv2_osc_argument_type(LV2_OSC_URID *osc_urid, const LV2_Atom *atom);

const LV2_Atom *
lv2_osc_int32_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom,
	int32_t *i);

const LV2_Atom *
lv2_osc_float_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom,
	float *f);

const LV2_Atom *
lv2_osc_string_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom,
	const char **s);

const LV2_Atom *
lv2_osc_blob_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom,
	uint32_t *size, const uint8_t **b);

const LV2_Atom *
lv2_osc_int64_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom,
	int64_t *h);

const LV2_Atom *
lv2_osc_double_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom,
	double *d);

const LV2_Atom * 
lv2_osc_timetag_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom,
	LV2_OSC_Timetag *timetag);

const LV2_Atom *
lv2_osc_true_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom);

const LV2_Atom *
lv2_osc_false_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom);

const LV2_Atom *
lv2_osc_nil_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom);

const LV2_Atom *
lv2_osc_impulse_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom);

const LV2_Atom *
lv2_osc_symbol_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom,
	LV2_URID *S);

const LV2_Atom *
lv2_osc_midi_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom,
	uint32_t *size, const uint8_t **m);

const LV2_Atom *
lv2_osc_char_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom, char *c);

const LV2_Atom *
lv2_osc_rgba_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom,
	uint8_t *r, uint8_t *g, uint8_t *b, uint8_t *a);

bool
lv2_osc_bundle_body_get(LV2_OSC_URID *osc_urid, uint32_t size, const LV2_Atom_Object_Body *body,
	const LV2_Atom_Object **timetag, const LV2_Atom_Tuple **items);

bool
lv2_osc_bundle_get(LV2_OSC_URID *osc_urid, const LV2_Atom_Object *obj,
	const LV2_Atom_Object **timetag, const LV2_Atom_Tuple **items);

bool
lv2_osc_message_body_get(LV2_OSC_URID *osc_urid, uint32_t size, const LV2_Atom_Object_Body *body,
	const LV2_Atom_String **path, const LV2_Atom_Tuple **arguments);

bool
lv2_osc_message_get(LV2_OSC_URID *osc_urid, const LV2_Atom_Object *obj,
	const LV2_Atom_String **path, const LV2_Atom_Tuple **arguments);

bool
lv2_osc_body_unroll(LV2_OSC_URID *osc_urid, uint32_t size, const LV2_Atom_Object_Body *body,
	LV2_OSC_Method method, void *data);

bool
lv2_osc_unroll(LV2_OSC_URID *osc_urid, const LV2_Atom_Object *obj,
	LV2_OSC_Method method, void *data);

#ifdef __cplusplus
} // extern "C"
#endif

#endif // LV2_OSC_UTIL_H

A subprojects/osc.lv2/osc.lv2/writer.h => subprojects/osc.lv2/osc.lv2/writer.h +123 -0
@@ 0,0 1,123 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#ifndef LV2_OSC_WRITER_H
#define LV2_OSC_WRITER_H

#include <osc.lv2/util.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef struct _LV2_OSC_Writer LV2_OSC_Writer;
typedef struct _LV2_OSC_Writer_Frame LV2_OSC_Writer_Frame;

struct _LV2_OSC_Writer {
	uint8_t *buf;
	uint8_t *ptr;
	const uint8_t *end;
};

struct _LV2_OSC_Writer_Frame {
	uint8_t *ref;
};

void
lv2_osc_writer_initialize(LV2_OSC_Writer *writer, uint8_t *buf, size_t size);

size_t
lv2_osc_writer_get_size(LV2_OSC_Writer *writer);

uint8_t * 
lv2_osc_writer_finalize(LV2_OSC_Writer *writer, size_t *size);

bool
lv2_osc_writer_overflow(LV2_OSC_Writer *writer, size_t size);

bool
lv2_osc_writer_htobe32(LV2_OSC_Writer *writer, union swap32_t *s32);

bool 
lv2_osc_writer_htobe64(LV2_OSC_Writer *writer, union swap64_t *s64);

bool
lv2_osc_writer_add_int32(LV2_OSC_Writer *writer, int32_t i);

bool 
lv2_osc_writer_add_float(LV2_OSC_Writer *writer, float f);

bool 
lv2_osc_writer_add_string(LV2_OSC_Writer *writer, const char *s);

bool
lv2_osc_writer_add_symbol(LV2_OSC_Writer *writer, const char *S);

bool
lv2_osc_writer_add_int64(LV2_OSC_Writer *writer, int64_t h);

bool 
lv2_osc_writer_add_double(LV2_OSC_Writer *writer, double d);

bool
lv2_osc_writer_add_timetag(LV2_OSC_Writer *writer, uint64_t u);

bool 
lv2_osc_writer_add_blob_inline(LV2_OSC_Writer *writer, int32_t len, uint8_t **body);

bool 
lv2_osc_writer_add_blob(LV2_OSC_Writer *writer, int32_t len, const uint8_t *body);

bool
lv2_osc_writer_add_midi_inline(LV2_OSC_Writer *writer, int32_t len, uint8_t **m);

bool 
lv2_osc_writer_add_midi(LV2_OSC_Writer *writer, int32_t len, const uint8_t *m);

bool
lv2_osc_writer_add_rgba(LV2_OSC_Writer *writer, uint8_t r, uint8_t g, uint8_t b, uint8_t a);

bool
lv2_osc_writer_add_char(LV2_OSC_Writer *writer, char c);

bool 
lv2_osc_writer_push_bundle(LV2_OSC_Writer *writer, LV2_OSC_Writer_Frame *frame, uint64_t t);

bool 
lv2_osc_writer_pop_bundle(LV2_OSC_Writer *writer, LV2_OSC_Writer_Frame *frame);

bool
lv2_osc_writer_push_item(LV2_OSC_Writer *writer, LV2_OSC_Writer_Frame *frame);

bool
lv2_osc_writer_pop_item(LV2_OSC_Writer *writer, LV2_OSC_Writer_Frame *frame);

bool 
lv2_osc_writer_add_path(LV2_OSC_Writer *writer, const char *path);

bool 
lv2_osc_writer_add_format(LV2_OSC_Writer *writer, const char *fmt);

bool
lv2_osc_writer_arg_varlist(LV2_OSC_Writer *writer, const char *fmt, va_list args);

bool
lv2_osc_writer_arg_vararg(LV2_OSC_Writer *writer, const char *fmt, ...);

bool
lv2_osc_writer_message_varlist(LV2_OSC_Writer *writer, const char *path, const char *fmt, va_list args);

bool
lv2_osc_writer_message_vararg(LV2_OSC_Writer *writer, const char *path, const char *fmt, ...);

bool
lv2_osc_writer_packet(LV2_OSC_Writer *writer, LV2_OSC_URID *osc_urid,
	LV2_URID_Unmap *unmap, uint32_t size, const LV2_Atom_Object_Body *body);

#ifdef __cplusplus
} // extern "C"
#endif

#endif // LV2_OSC_WRITER_H

A subprojects/osc.lv2/src/forge.c => subprojects/osc.lv2/src/forge.c +483 -0
@@ 0,0 1,483 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#include <stdio.h>
#include <inttypes.h>

#include <osc.lv2/forge.h>
#include <osc.lv2/reader.h>
#include <osc.lv2/util.h>

LV2_Atom_Forge_Ref
lv2_osc_forge_chunk(LV2_Atom_Forge *forge, LV2_URID type,
	const uint8_t *buf, uint32_t size)
{
	LV2_Atom_Forge_Ref ref;

	if(  lv2_atom_forge_atom(forge, size, type)
		&& (ref = lv2_atom_forge_raw(forge, buf, size)) )
	{
		lv2_atom_forge_pad(forge, size);
		return ref;
	}

	return 0;
}

LV2_Atom_Forge_Ref
lv2_osc_forge_midi(LV2_Atom_Forge *forge, LV2_OSC_URID *osc_urid,
	const uint8_t *buf, uint32_t size)
{
	assert(size <= 3);
	return lv2_osc_forge_chunk(forge, osc_urid->MIDI_MidiEvent, buf, size);
}

LV2_Atom_Forge_Ref
lv2_osc_forge_blob(LV2_Atom_Forge* forge, LV2_OSC_URID *osc_urid,
	const uint8_t *buf, uint32_t size)
{
	return lv2_osc_forge_chunk(forge, osc_urid->ATOM_Chunk, buf, size);
}

LV2_Atom_Forge_Ref
lv2_osc_forge_char(LV2_Atom_Forge* forge, LV2_OSC_URID *osc_urid,
	char val)
{
	return lv2_atom_forge_literal(forge, &val, 1, osc_urid->OSC_Char, 0);
}

LV2_Atom_Forge_Ref
lv2_osc_forge_rgba(LV2_Atom_Forge* forge, LV2_OSC_URID *osc_urid,
	uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
	char val [9];
	sprintf(val, "%02"PRIx8"%02"PRIx8"%02"PRIx8"%02"PRIx8, r, g, b, a);
	return lv2_atom_forge_literal(forge, val, 8, osc_urid->OSC_RGBA, 0);
}

LV2_Atom_Forge_Ref
lv2_osc_forge_timetag(LV2_Atom_Forge *forge, LV2_OSC_URID *osc_urid,
	const LV2_OSC_Timetag *timetag)
{
	LV2_Atom_Forge_Frame frame;
	LV2_Atom_Forge_Ref ref;

	if(  lv2_atom_forge_object(forge, &frame, 0, osc_urid->OSC_Timetag)
		&& lv2_atom_forge_key(forge, osc_urid->OSC_timetagIntegral)
		&& lv2_atom_forge_long(forge, timetag->integral)
		&& lv2_atom_forge_key(forge, osc_urid->OSC_timetagFraction)
		&& (ref = lv2_atom_forge_long(forge, timetag->fraction)) )
	{
		lv2_atom_forge_pop(forge, &frame);
		return ref;
	}

	return 0;
}

LV2_Atom_Forge_Ref
lv2_osc_forge_bundle_head(LV2_Atom_Forge* forge, LV2_OSC_URID *osc_urid,
	LV2_Atom_Forge_Frame frame [2], const LV2_OSC_Timetag *timetag)
{
	LV2_Atom_Forge_Ref ref;

	if(  lv2_atom_forge_object(forge, &frame[0], 0, osc_urid->OSC_Bundle)
		&& lv2_atom_forge_key(forge, osc_urid->OSC_bundleTimetag)
		&& lv2_osc_forge_timetag(forge, osc_urid, timetag)
		&& lv2_atom_forge_key(forge, osc_urid->OSC_bundleItems)
		&& (ref = lv2_atom_forge_tuple(forge, &frame[1])) )
	{
		return ref;
	}

	return 0;
}

/**
   TODO
*/
LV2_Atom_Forge_Ref
lv2_osc_forge_message_head(LV2_Atom_Forge *forge, LV2_OSC_URID *osc_urid,
	LV2_Atom_Forge_Frame frame [2], const char *path)
{
	assert(path);

	LV2_Atom_Forge_Ref ref;
	if(  lv2_atom_forge_object(forge, &frame[0], 0, osc_urid->OSC_Message)
		&& lv2_atom_forge_key(forge, osc_urid->OSC_messagePath)
		&& lv2_atom_forge_string(forge, path, strlen(path))
		&& lv2_atom_forge_key(forge, osc_urid->OSC_messageArguments)
		&& (ref = lv2_atom_forge_tuple(forge, &frame[1])) )
	{
		return ref;
	}

	return 0;
}

/**
   TODO
*/
void
lv2_osc_forge_pop(LV2_Atom_Forge *forge, LV2_Atom_Forge_Frame frame [2])
{
	lv2_atom_forge_pop(forge, &frame[1]); // a LV2_Atom_Tuple
	lv2_atom_forge_pop(forge, &frame[0]); // a LV2_Atom_Object
}

LV2_Atom_Forge_Ref
lv2_osc_forge_message_varlist(LV2_Atom_Forge *forge, LV2_OSC_URID *osc_urid,
	const char *path, const char *fmt, va_list args)
{
	LV2_Atom_Forge_Frame frame [2];
	LV2_Atom_Forge_Ref ref;

	if(!lv2_osc_check_path(path) || !lv2_osc_check_fmt(fmt, 0))
	{
		return 0;
	}
	if(!(ref = lv2_osc_forge_message_head(forge, osc_urid, frame, path)))
	{
		return 0;
	}

	for(const char *type = fmt; *type; type++)
	{
		switch( (LV2_OSC_Type)*type)
		{
			case LV2_OSC_INT32:
			{
				if(!(ref = lv2_osc_forge_int(forge, osc_urid, va_arg(args, int32_t))))
				{
					return 0;
				}
				break;
			}
			case LV2_OSC_FLOAT:
			{
				if(!(ref = lv2_osc_forge_float(forge, osc_urid, (float)va_arg(args, double))))
				{
					return 0;
				}
				break;
			}
			case LV2_OSC_STRING:
			{
				const char *s = va_arg(args, const char *);
				if(!s || !(ref = lv2_osc_forge_string(forge, osc_urid, s, strlen(s))))
				{
					return 0;
				}
				break;
			}
			case LV2_OSC_BLOB:
			{
				const int32_t size = va_arg(args, int32_t);
				const uint8_t *b = va_arg(args, const uint8_t *);
				if(!b || !(ref = lv2_osc_forge_blob(forge, osc_urid, b, size)))
				{
					return 0;
				}
				break;
			}
			
			case LV2_OSC_INT64:
			{
				if(!(ref = lv2_osc_forge_long(forge, osc_urid, va_arg(args, int64_t))))
				{
					return 0;
				}
				break;
			}
			case LV2_OSC_DOUBLE:
			{
				if(!(ref = lv2_osc_forge_double(forge, osc_urid, va_arg(args, double))))
				{
					return 0;
				}
				break;
			}
			case LV2_OSC_TIMETAG:
			{
				const LV2_OSC_Timetag timetag = {
					.integral = va_arg(args, uint32_t),
					.fraction = va_arg(args, uint32_t)
				};
				if(!(ref = lv2_osc_forge_timetag(forge, osc_urid, &timetag)))
				{
					return 0;
				}
				break;
			}
			
			case LV2_OSC_TRUE:
			{
				if(!(ref = lv2_osc_forge_true(forge, osc_urid)))
				{
					return 0;
				}
				break;
			}
			case LV2_OSC_FALSE:
			{
				if(!(ref = lv2_osc_forge_false(forge, osc_urid)))
				{
					return 0;
				}
				break;
			}
			case LV2_OSC_NIL:
			{
				if(!(ref = lv2_osc_forge_nil(forge, osc_urid)))
				{
					return 0;
				}
				break;
			}
			case LV2_OSC_IMPULSE:
			{
				if(!(ref = lv2_osc_forge_impulse(forge, osc_urid)))
				{
					return 0;
				}
				break;
			}
			case LV2_OSC_SYMBOL:
			{
				if(!(ref = lv2_osc_forge_symbol(forge, osc_urid, va_arg(args, uint32_t))))
				{
					return 0;
				}
				break;
			}
			case LV2_OSC_MIDI:
			{
				const int32_t size = va_arg(args, int32_t);
				const uint8_t *m = va_arg(args, const uint8_t *);
				if(!m || !(ref = lv2_osc_forge_midi(forge, osc_urid, m, size)))
				{
					return 0;
				}
				break;
			}
			case LV2_OSC_CHAR:
			{
				if(!(ref = lv2_osc_forge_char(forge, osc_urid, (char)va_arg(args, int))))
				{
					return 0;
				}
				break;
			}
			case LV2_OSC_RGBA:
			{
				if(!(ref = lv2_osc_forge_rgba(forge, osc_urid,
						(uint8_t)va_arg(args, unsigned),
						(uint8_t)va_arg(args, unsigned),
						(uint8_t)va_arg(args, unsigned),
						(uint8_t)va_arg(args, unsigned))))
				{
					return 0;
				}
				break;
			}
		}
	}

	lv2_osc_forge_pop(forge, frame);

	return ref;
}

LV2_Atom_Forge_Ref
lv2_osc_forge_message_vararg(LV2_Atom_Forge *forge, LV2_OSC_URID *osc_urid,
	const char *path, const char *fmt, ...)
{
	LV2_Atom_Forge_Ref ref;
	va_list args;

	va_start(args, fmt);

	ref = lv2_osc_forge_message_varlist(forge, osc_urid, path, fmt, args);

	va_end(args);

	return ref;
}

LV2_Atom_Forge_Ref
lv2_osc_forge_packet(LV2_Atom_Forge *forge, LV2_OSC_URID *osc_urid,
	LV2_URID_Map *map, const uint8_t *buf, size_t size)
{
	LV2_OSC_Reader reader;
	LV2_Atom_Forge_Frame frame [2];
	LV2_Atom_Forge_Ref ref;

	lv2_osc_reader_initialize(&reader, buf, size);

	if(lv2_osc_reader_is_bundle(&reader))
	{
		LV2_OSC_Item *itm = OSC_READER_BUNDLE_BEGIN(&reader, size);
		
		if(itm && (ref = lv2_osc_forge_bundle_head(forge, osc_urid, frame, 
			LV2_OSC_TIMETAG_CREATE(itm->timetag))))
		{
			OSC_READER_BUNDLE_ITERATE(&reader, itm)
			{
				if(!(ref = lv2_osc_forge_packet(forge, osc_urid, map, itm->body, itm->size)))
				{
					return 0;
				}
			}

			lv2_osc_forge_pop(forge, frame);

			return ref;
		}
	}
	else if(lv2_osc_reader_is_message(&reader))
	{
		LV2_OSC_Arg *arg = OSC_READER_MESSAGE_BEGIN(&reader, size);

		if(arg && (ref = lv2_osc_forge_message_head(forge, osc_urid, frame, arg->path)))
		{
			OSC_READER_MESSAGE_ITERATE(&reader, arg)
			{
				switch( (LV2_OSC_Type)*arg->type)
				{
					case LV2_OSC_INT32:
					{
						if(!(ref = lv2_osc_forge_int(forge, osc_urid, arg->i)))
						{
							return 0;
						}
						break;
					}
					case LV2_OSC_FLOAT:
					{
						if(!(ref = lv2_osc_forge_float(forge, osc_urid, arg->f)))
						{
							return 0;
						}
						break;
					}
					case LV2_OSC_STRING:
					{
						if(!(ref = lv2_osc_forge_string(forge, osc_urid, arg->s, arg->size - 1)))
						{
							return 0;
						}
						break;
					}
					case LV2_OSC_BLOB:
					{
						if(!(ref = lv2_osc_forge_blob(forge, osc_urid, arg->b, arg->size)))
						{
							return 0;
						}
						break;
					}

					case LV2_OSC_INT64:
					{
						if(!(ref = lv2_osc_forge_long(forge, osc_urid, arg->h)))
						{
							return 0;
						}
						break;
					}
					case LV2_OSC_DOUBLE:
					{
						if(!(ref = lv2_osc_forge_double(forge, osc_urid, arg->d)))
						{
							return 0;
						}
						break;
					}
					case LV2_OSC_TIMETAG:
					{
						if(!(ref = lv2_osc_forge_timetag(forge, osc_urid, LV2_OSC_TIMETAG_CREATE(arg->t))))
						{
							return 0;
						}
						break;
					}

					case LV2_OSC_TRUE:
					{
						if(!(ref = lv2_osc_forge_true(forge, osc_urid)))
						{
							return 0;
						}
						break;
					}
					case LV2_OSC_FALSE:
					{
						if(!(ref = lv2_osc_forge_false(forge, osc_urid)))
						{
							return 0;
						}
						break;
					}
					case LV2_OSC_NIL:
					{
						if(!(ref = lv2_osc_forge_nil(forge, osc_urid)))
						{
							return 0;
						}
						break;
					}
					case LV2_OSC_IMPULSE:
					{
						if(!(ref = lv2_osc_forge_impulse(forge, osc_urid)))
						{
							return 0;
						}
						break;
					}

					case LV2_OSC_SYMBOL:
					{
						if(!(ref = lv2_osc_forge_symbol(forge, osc_urid,
								map->map(map->handle, arg->S))))
						{
							return 0;
						}
						break;
					}
					case LV2_OSC_MIDI:
					{
						if(!(ref = lv2_osc_forge_midi(forge, osc_urid, &arg->b[1], arg->size - 1)))
						{
							return 0;
						}
						break;
					}
					case LV2_OSC_CHAR:
					{
						if(!(ref = lv2_osc_forge_char(forge, osc_urid, arg->c)))
						{
							return 0;
						}
						break;
					}
					case LV2_OSC_RGBA:
					{
						if(!(ref = lv2_osc_forge_rgba(forge, osc_urid, arg->R, arg->G, arg->B, arg->A)))
						{
							return 0;
						}
						break;
					}
				}
			}

			lv2_osc_forge_pop(forge, frame);

			return ref;
		}
	}

	return 0;
}

A subprojects/osc.lv2/src/osc.c => subprojects/osc.lv2/src/osc.c +43 -0
@@ 0,0 1,43 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#include <osc.lv2/forge.h>

void
lv2_osc_urid_init(LV2_OSC_URID *osc_urid, LV2_URID_Map *map)
{
	osc_urid->OSC_Packet = map->map(map->handle, LV2_OSC__Packet);

	osc_urid->OSC_Bundle = map->map(map->handle, LV2_OSC__Bundle);
	osc_urid->OSC_bundleTimetag = map->map(map->handle, LV2_OSC__bundleTimetag);
	osc_urid->OSC_bundleItems = map->map(map->handle, LV2_OSC__bundleItems);

	osc_urid->OSC_Message = map->map(map->handle, LV2_OSC__Message);
	osc_urid->OSC_messagePath = map->map(map->handle, LV2_OSC__messagePath);
	osc_urid->OSC_messageArguments = map->map(map->handle, LV2_OSC__messageArguments);

	osc_urid->OSC_Timetag = map->map(map->handle, LV2_OSC__Timetag);
	osc_urid->OSC_timetagIntegral = map->map(map->handle, LV2_OSC__timetagIntegral);
	osc_urid->OSC_timetagFraction = map->map(map->handle, LV2_OSC__timetagFraction);

	osc_urid->OSC_Nil = map->map(map->handle, LV2_OSC__Nil);
	osc_urid->OSC_Impulse = map->map(map->handle, LV2_OSC__Impulse);
	osc_urid->OSC_Char = map->map(map->handle, LV2_OSC__Char);
	osc_urid->OSC_RGBA = map->map(map->handle, LV2_OSC__RGBA);

	osc_urid->MIDI_MidiEvent = map->map(map->handle, LV2_MIDI__MidiEvent);

	osc_urid->ATOM_Int = map->map(map->handle, LV2_ATOM__Int);
	osc_urid->ATOM_Long = map->map(map->handle, LV2_ATOM__Long);
	osc_urid->ATOM_String = map->map(map->handle, LV2_ATOM__String);
	osc_urid->ATOM_Literal = map->map(map->handle, LV2_ATOM__Literal);
	osc_urid->ATOM_Float = map->map(map->handle, LV2_ATOM__Float);
	osc_urid->ATOM_Double = map->map(map->handle, LV2_ATOM__Double);
	osc_urid->ATOM_URID = map->map(map->handle, LV2_ATOM__URID);
	osc_urid->ATOM_Bool = map->map(map->handle, LV2_ATOM__Bool);
	osc_urid->ATOM_Tuple = map->map(map->handle, LV2_ATOM__Tuple);
	osc_urid->ATOM_Object = map->map(map->handle, LV2_ATOM__Object);
	osc_urid->ATOM_Chunk = map->map(map->handle, LV2_ATOM__Chunk);
}

A subprojects/osc.lv2/src/reader.c => subprojects/osc.lv2/src/reader.c +606 -0
@@ 0,0 1,606 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#include <stddef.h>
#include <string.h>
#include <stdarg.h>
#include <endian.h>

#include <osc.lv2/reader.h>
#include <osc.lv2/util.h>

void
lv2_osc_reader_initialize(LV2_OSC_Reader *reader, const uint8_t *buf, size_t size)
{
	reader->buf = buf;
	reader->ptr = buf;
	reader->end = buf + size;
}

bool
lv2_osc_reader_overflow(LV2_OSC_Reader *reader, size_t size)
{
	return reader->ptr + size > reader->end;
}

bool
lv2_osc_reader_be32toh(LV2_OSC_Reader *reader, union swap32_t *s32)
{
	if(lv2_osc_reader_overflow(reader, 4))
	{
		return false;
	}

	s32->u = *(const uint32_t *)reader->ptr;
	s32->u = be32toh(s32->u);
	reader->ptr += 4;

	return true;
}

bool
lv2_osc_reader_be64toh(LV2_OSC_Reader *reader, union swap64_t *s64)
{
	if(lv2_osc_reader_overflow(reader, 8))
	{
		return false;
	}

	s64->u = *(const uint64_t *)reader->ptr;
	s64->u = be64toh(s64->u);
	reader->ptr += 8;

	return true;
}

bool
lv2_osc_reader_get_int32(LV2_OSC_Reader *reader, int32_t *i)
{
	union swap32_t s32;
	if(!lv2_osc_reader_be32toh(reader, &s32))
	{
		return false;
	}

	*i = s32.i;

	return true;
}

bool
lv2_osc_reader_get_float(LV2_OSC_Reader *reader, float *f)
{
	union swap32_t s32;
	if(!lv2_osc_reader_be32toh(reader, &s32))
	{
		return false;
	}

	*f = s32.f;

	return true;
}

bool
lv2_osc_reader_get_int64(LV2_OSC_Reader *reader, int64_t *h)
{
	union swap64_t s64;
	if(!lv2_osc_reader_be64toh(reader, &s64))
	{
		return false;
	}

	*h = s64.h;

	return true;
}

bool
lv2_osc_reader_get_timetag(LV2_OSC_Reader *reader, uint64_t *t)
{
	union swap64_t s64;
	if(!lv2_osc_reader_be64toh(reader, &s64))
	{
		return false;
	}

	*t = s64.u;

	return true;
}

bool
lv2_osc_reader_get_double(LV2_OSC_Reader *reader, double *d)
{
	union swap64_t s64;
	if(!lv2_osc_reader_be64toh(reader, &s64))
	{
		return false;
	}

	*d = s64.d;

	return true;
}

bool
lv2_osc_reader_get_string(LV2_OSC_Reader *reader, const char **s)
{
	const char *str = (const char *)reader->ptr;
	const size_t padded = LV2_OSC_PADDED_SIZE(strlen(str) + 1);
	if(lv2_osc_reader_overflow(reader, padded ))
	{
		return false;
	}

	*s = str;
	reader->ptr += padded;

	return true;
}

bool
lv2_osc_reader_get_symbol(LV2_OSC_Reader *reader, const char **S)
{
	return lv2_osc_reader_get_string(reader, S);
}

bool
lv2_osc_reader_get_midi(LV2_OSC_Reader *reader, const uint8_t **m)
{
	if(lv2_osc_reader_overflow(reader, 4))
	{
		return false;
	}

	*m = reader->ptr;
	reader->ptr += 4;

	return true;
}

bool
lv2_osc_reader_get_blob(LV2_OSC_Reader *reader, int32_t *len, const uint8_t **body)
{
	if(!lv2_osc_reader_get_int32(reader, len))
	{
		return false;
	}

	const size_t padded = LV2_OSC_PADDED_SIZE(*len);
	if(lv2_osc_reader_overflow(reader, padded))
	{
		return false;
	}

	*body = reader->ptr;
	reader->ptr += padded;

	return true;
}

bool
lv2_osc_reader_get_rgba(LV2_OSC_Reader *reader, uint8_t *r, uint8_t *g, uint8_t *b, uint8_t *a)
{
	if(lv2_osc_reader_overflow(reader, 4))
	{
		return false;
	}

	*r = reader->ptr[0];
	*g = reader->ptr[1];
	*b = reader->ptr[2];
	*a = reader->ptr[3];
	reader->ptr += 4;

	return true;
}

bool
lv2_osc_reader_get_char(LV2_OSC_Reader *reader, char *c)
{
	int32_t i;
	if(!lv2_osc_reader_get_int32(reader, &i))
	{
		return false;
	}

	*c = i;

	return true;
}

LV2_OSC_Item *
lv2_osc_reader_item_raw(LV2_OSC_Reader *reader, LV2_OSC_Item *itm)
{
	if(!lv2_osc_reader_get_int32(reader, &itm->size))
	{
		return NULL;
	}

	if(lv2_osc_reader_overflow(reader, itm->size))
	{
		return NULL;
	}

	itm->body = reader->ptr;

	return itm;
}

LV2_OSC_Item *
lv2_osc_reader_item_begin(LV2_OSC_Reader *reader, LV2_OSC_Item *itm, size_t len)
{
	if(lv2_osc_reader_overflow(reader, len))
	{
		return NULL;
	}

	itm->end = reader->ptr + len;

	if(lv2_osc_reader_overflow(reader, 16))
	{
		return NULL;
	}

	if(strncmp((const char *)reader->ptr, "#bundle", 8))
	{
		return NULL;
	}
	reader->ptr += 8;

	if(!lv2_osc_reader_get_timetag(reader, &itm->timetag))
	{
		return NULL;
	}

	return lv2_osc_reader_item_raw(reader, itm);
}

bool
lv2_osc_reader_item_is_end(LV2_OSC_Reader *reader, LV2_OSC_Item *itm)
{
	return reader->ptr > itm->end;
}

LV2_OSC_Item *
lv2_osc_reader_item_next(LV2_OSC_Reader *reader, LV2_OSC_Item *itm)
{
	reader->ptr += itm->size;

	return lv2_osc_reader_item_raw(reader, itm);
}

LV2_OSC_Arg *
lv2_osc_reader_arg_raw(LV2_OSC_Reader *reader, LV2_OSC_Arg *arg)
{
	switch( (LV2_OSC_Type)*arg->type)
	{
		case LV2_OSC_INT32:
		{
			if(!lv2_osc_reader_get_int32(reader, &arg->i))
			{
				return NULL;
			}
			arg->size = 4;

			break;
		}
		case LV2_OSC_FLOAT:
		{
			if(!lv2_osc_reader_get_float(reader, &arg->f))
			{
				return NULL;
			}
			arg->size = 4;

			break;
		}
		case LV2_OSC_STRING:
		{
			if(!lv2_osc_reader_get_string(reader, &arg->s))
			{
				return NULL;
			}
			arg->size = strlen(arg->s) + 1;

			break;
		}
		case LV2_OSC_BLOB:
		{
			if(!lv2_osc_reader_get_blob(reader, &arg->size, &arg->b))
			{
				return NULL;
			}
			//arg->size = arg->size;

			break;
		}

		case LV2_OSC_TRUE:
		case LV2_OSC_FALSE:
		case LV2_OSC_NIL:
		case LV2_OSC_IMPULSE:
			break;

		case LV2_OSC_INT64:
		{
			if(!lv2_osc_reader_get_int64(reader, &arg->h))
			{
				return NULL;
			}
			arg->size = 8;

			break;
		}
		case LV2_OSC_DOUBLE:
		{
			if(!lv2_osc_reader_get_double(reader, &arg->d))
			{
				return NULL;
			}
			arg->size = 8;

			break;
		}
		case LV2_OSC_TIMETAG:
		{
			if(!lv2_osc_reader_get_timetag(reader, &arg->t))
			{
				return NULL;
			}
			arg->size = 8;

			break;
		}

		case LV2_OSC_MIDI:
		{
			if(!lv2_osc_reader_get_midi(reader, &arg->m))
			{
				return NULL;
			}
			arg->size = 4;

			break;
		}
		case LV2_OSC_SYMBOL:
		{
			if(!lv2_osc_reader_get_symbol(reader, &arg->S))
			{
				return NULL;
			}
			arg->size = strlen(arg->S) + 1;

			break;
		}
		case LV2_OSC_CHAR:
		{
			if(!lv2_osc_reader_get_char(reader, &arg->c))
			{
				return NULL;
			}
			arg->size = 4;

			break;
		}
		case LV2_OSC_RGBA:
		{
			if(!lv2_osc_reader_get_rgba(reader, &arg->R, &arg->G, &arg->B, &arg->A))
			{
				return NULL;
			}
			arg->size = 4;

			break;
		}
	}

	return arg;
}

LV2_OSC_Arg *
lv2_osc_reader_arg_begin(LV2_OSC_Reader *reader, LV2_OSC_Arg *arg, size_t len)
{
	if(lv2_osc_reader_overflow(reader, len))
	{
		return NULL;
	}

	arg->end = reader->ptr + len;

	if(!lv2_osc_reader_get_string(reader, &arg->path)) //TODO check for validity
	{
		return NULL;
	}

	if(!lv2_osc_reader_get_string(reader, &arg->type)) //TODO check for validity
	{
		return NULL;
	}

	if(*arg->type != ',')
	{
		return NULL;
	}

	arg->type++; // skip ','

	return lv2_osc_reader_arg_raw(reader, arg);
}

bool
lv2_osc_reader_arg_is_end(LV2_OSC_Reader *reader, LV2_OSC_Arg *arg)
{
	return (*arg->type == '\0') || (reader->ptr > arg->end);
}

LV2_OSC_Arg *
lv2_osc_reader_arg_next(LV2_OSC_Reader *reader, LV2_OSC_Arg *arg)
{
	arg->type++;

	return lv2_osc_reader_arg_raw(reader, arg);
}

bool
lv2_osc_reader_arg_varlist(LV2_OSC_Reader *reader, const char *fmt, va_list args)
{
	for(const char *type = fmt; *type; type++)
	{
		switch( (LV2_OSC_Type)*type)
		{
			case LV2_OSC_INT32:
				if(!lv2_osc_reader_get_int32(reader, va_arg(args, int32_t *)))
				{
					return false;
				}
				break;
			case LV2_OSC_FLOAT:
				if(!lv2_osc_reader_get_float(reader, va_arg(args, float *)))
				{
					return false;
				}
				break;
			case LV2_OSC_STRING:
				if(!lv2_osc_reader_get_string(reader, va_arg(args, const char **)))
				{
					return false;
				}
				break;
			case LV2_OSC_BLOB:
				if(!lv2_osc_reader_get_blob(reader, va_arg(args, int32_t *), va_arg(args, const uint8_t **)))
				{
					return false;
				}
				break;

			case LV2_OSC_TRUE:
			case LV2_OSC_FALSE:
			case LV2_OSC_NIL:
			case LV2_OSC_IMPULSE:
				break;

			case LV2_OSC_INT64:
				if(!lv2_osc_reader_get_int64(reader, va_arg(args, int64_t *)))
				{
					return false;
				}
				break;
			case LV2_OSC_DOUBLE:
				if(!lv2_osc_reader_get_double(reader, va_arg(args, double *)))
				{
					return false;
				}
				break;
			case LV2_OSC_TIMETAG:
				if(!lv2_osc_reader_get_timetag(reader, va_arg(args, uint64_t *)))
				{
					return false;
				}
				break;

			case LV2_OSC_MIDI:
				if(!lv2_osc_reader_get_midi(reader, va_arg(args, const uint8_t **)))
				{
					return false;
				}
				break;
			case LV2_OSC_SYMBOL:
				if(!lv2_osc_reader_get_symbol(reader, va_arg(args, const char **)))
				{
					return false;
				}
				break;
			case LV2_OSC_CHAR:
				if(!lv2_osc_reader_get_char(reader, va_arg(args, char *)))
				{
					return false;
				}
				break;
			case LV2_OSC_RGBA:
				if(!lv2_osc_reader_get_rgba(reader, va_arg(args, uint8_t *), va_arg(args, uint8_t *),
						va_arg(args, uint8_t *), va_arg(args, uint8_t *)))
				{
					return false;
				}
				break;
		}
	}

	return true;
}

bool
lv2_osc_reader_arg_vararg(LV2_OSC_Reader *reader, const char *fmt, ...)
{
  va_list args;
  va_start(args, fmt);

	const bool res = lv2_osc_reader_arg_varlist(reader, fmt, args);

	va_end(args);

	return res;
}

bool
lv2_osc_reader_is_bundle(LV2_OSC_Reader *reader)
{
	return strncmp((const char *)reader->ptr, "#bundle", 8) == 0;
}

bool
lv2_osc_reader_is_message(LV2_OSC_Reader *reader)
{
	return reader->ptr[0] == '/'; //FIXME check path
}

static void
_lv2_osc_trees_internal(LV2_OSC_Reader *reader, const char *path, const char *from,
	LV2_OSC_Arg *arg, const LV2_OSC_Tree *trees, void *data)
{
	const char *ptr = strchr(from, '/');
	const char *pattern = strpbrk(from, "*?[]{}/");
	const bool has_pattern = pattern && (pattern[0] != '/');
	(void)has_pattern; //FIXME

	const size_t len = ptr
		? (size_t)(ptr - from)
		: strlen(from);

	for(const LV2_OSC_Tree *tree = trees; tree && tree->name; tree++)
	{
		if(lv2_osc_pattern_match(from, tree->name, len))
		{
			if(tree->trees && ptr)
			{
				if(tree->branch)
				{
					LV2_OSC_Reader reader_clone = *reader;
					tree->branch(&reader_clone, arg, tree, data);
				}

				_lv2_osc_trees_internal(reader, path, &ptr[1], arg, tree->trees, data);
			}
			else if(tree->branch && !ptr)
			{
				LV2_OSC_Reader reader_clone = *reader;
				tree->branch(&reader_clone, arg, tree, data);
			}
		}
	}
}

void
lv2_osc_reader_match(LV2_OSC_Reader *reader, size_t len,
	const LV2_OSC_Tree *trees, void *data)
{
	LV2_OSC_Arg *arg = OSC_READER_MESSAGE_BEGIN(reader, len);
	const char *path = arg->path;
	const char *from = &path[1];

	_lv2_osc_trees_internal(reader, path, from, arg, trees, data);
}

A subprojects/osc.lv2/src/stream.c => subprojects/osc.lv2/src/stream.c +1369 -0
@@ 0,0 1,1369 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#include <stdlib.h>
#include <string.h>
#include <net/if.h>
#include <netinet/tcp.h>
#include <netdb.h>
#include <termios.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <poll.h>

#include <osc.lv2/stream.h>

#if !defined(LV2_OSC_STREAM_SNDBUF)
#	define LV2_OSC_STREAM_SNDBUF 0x100000 // 1 M
#endif

#if !defined(LV2_OSC_STREAM_RCVBUF)
#	define LV2_OSC_STREAM_RCVBUF 0x100000 // 1 M
#endif

#if !defined(LV2_OSC_STREAM_REQBUF)
#	define LV2_OSC_STREAM_REQBUF 1024
#endif

static const char *udp_prefix = "osc.udp://";
static const char *tcp_prefix = "osc.tcp://";
static const char *tcp_slip_prefix = "osc.slip.tcp://";
static const char *tcp_prefix_prefix = "osc.prefix.tcp://";
static const char *ser_prefix = "osc.serial://";
//FIXME serial

static int
_lv2_osc_stream_interface_attribs(int fd, int speed)
{
	struct termios tty;

	if(tcgetattr(fd, &tty) < 0)
	{
		return -1;
	}

	cfsetospeed(&tty, (speed_t)speed);
	cfsetispeed(&tty, (speed_t)speed);

	tty.c_cflag |= (CLOCAL | CREAD);    /* ignore modem controls */
	tty.c_cflag &= ~CSIZE;
	tty.c_cflag |= CS8;         /* 8-bit characters */
	tty.c_cflag &= ~PARENB;     /* no parity bit */
	tty.c_cflag &= ~CSTOPB;     /* only need 1 stop bit */
	tty.c_cflag &= ~CRTSCTS;    /* no hardware flowcontrol */

	/* setup for non-canonical mode */
	tty.c_iflag &= ~(IGNCR | ONLCR | IXON);
	tty.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);
	tty.c_oflag &= ~OPOST;

	/* fetch bytes as they become available */
	tty.c_cc[VMIN] = 0;
	tty.c_cc[VTIME] = 0;

	if(tcsetattr(fd, TCSANOW, &tty) != 0)
	{
		return -1;
	}

	return 0;
}

static void
_close_socket(int *fd)
{
	if(fd)
	{
		if(*fd >= 0)
		{
			close(*fd);
		}

		*fd = -1;
	}
}

int
lv2_osc_stream_deinit(LV2_OSC_Stream *stream)
{
	_close_socket(&stream->fd);
	_close_socket(&stream->sock);

	return 0;
}

static int
_lv2_osc_stream_reinit(LV2_OSC_Stream *stream)
{
	LV2_OSC_Enum ev = LV2_OSC_NONE;
	lv2_osc_stream_deinit(stream);

	char *dup = strdup(stream->url);
	if(!dup)
	{
		ev = LV2_OSC_STREAM_ERRNO(ev, ENOMEM);
		goto fail;
	}

	char *ptr = dup;
	char *tmp;

	if(strncmp(ptr, udp_prefix, strlen(udp_prefix)) == 0)
	{
		stream->slip = false;
		stream->socket_family = AF_INET;
		stream->socket_type = SOCK_DGRAM;
		stream->protocol = IPPROTO_UDP;
		ptr += strlen(udp_prefix);
	}
	else if(strncmp(ptr, tcp_prefix, strlen(tcp_prefix)) == 0)
	{
		stream->slip = true;
		stream->socket_family = AF_INET;
		stream->socket_type = SOCK_STREAM;
		stream->protocol = IPPROTO_TCP;
		ptr += strlen(tcp_prefix);
	}
	else if(strncmp(ptr, tcp_slip_prefix, strlen(tcp_slip_prefix)) == 0)
	{
		stream->slip = true;
		stream->socket_family = AF_INET;
		stream->socket_type = SOCK_STREAM;
		stream->protocol = IPPROTO_TCP;
		ptr += strlen(tcp_slip_prefix);
	}
	else if(strncmp(ptr, tcp_prefix_prefix, strlen(tcp_prefix_prefix)) == 0)
	{
		stream->slip = false;
		stream->socket_family = AF_INET;
		stream->socket_type = SOCK_STREAM;
		stream->protocol = IPPROTO_TCP;
		ptr += strlen(tcp_prefix_prefix);
	}
	else if(strncmp(ptr, ser_prefix, strlen(ser_prefix)) == 0)
	{
		stream->slip = true;
		stream->serial = true;
		ptr += strlen(ser_prefix);
	}
	else
	{
		ev = LV2_OSC_STREAM_ERRNO(ev, ENOPROTOOPT);
		goto fail;
	}

	if(ptr[0] == '\0')
	{
		ev = LV2_OSC_STREAM_ERRNO(ev, EDESTADDRREQ);
		goto fail;
	}

	if(stream->serial)
	{
		stream->sock = open(ptr, O_RDWR | O_NOCTTY | O_NDELAY);
		if(stream->sock < 0)
		{
			ev = LV2_OSC_STREAM_ERRNO(ev, errno);
			goto fail;
		}

		if(fcntl(stream->sock, F_SETFL, FNDELAY) == -1) //FIXME
		{
			ev = LV2_OSC_STREAM_ERRNO(ev, errno);
			goto fail;
		}

		if(_lv2_osc_stream_interface_attribs(stream->sock, B115200) == -1)
		{
			ev = LV2_OSC_STREAM_ERRNO(ev, errno);
			goto fail;
		}

		stream->connected = true;
	}
	else // !stream->serial
	{
		const char *node = NULL;
		const char *iface = NULL;
		const char *service = NULL;

		// optional IPv6
		if(ptr[0] == '[')
		{
			stream->socket_family = AF_INET6;
			++ptr;
		}

		node = ptr;

		// optional IPv6
		if( (tmp = strchr(ptr, '%')) )
		{
			if(stream->socket_family != AF_INET6)
			{
				ev = LV2_OSC_STREAM_ERRNO(ev, EPROTOTYPE);
				goto fail;
			}

			ptr = tmp;
			ptr[0] = '\0';
			iface = ++ptr;
		}

		// optional IPv6
		if( (tmp = strchr(ptr, ']')) )
		if(ptr)
		{
			if(stream->socket_family != AF_INET6)
			{
				ev = LV2_OSC_STREAM_ERRNO(ev, EDESTADDRREQ);
				goto fail;
			}

			ptr = tmp;
			ptr[0] = '\0';
			++ptr;
		}

		// mandatory IPv4/6
		ptr = strchr(ptr, ':');
		if(!ptr)
		{
			ev = LV2_OSC_STREAM_ERRNO(ev, EDESTADDRREQ);
			goto fail;
		}

		ptr[0] = '\0';

		service = ++ptr;

		if(strlen(node) == 0)
		{
			node = NULL;
			stream->server = true;
		}

		stream->sock = socket(stream->socket_family, stream->socket_type,
			stream->protocol);

		if(stream->sock < 0)
		{
			ev = LV2_OSC_STREAM_ERRNO(ev, errno);
			goto fail;
		}

		if(fcntl(stream->sock, F_SETFL, O_NONBLOCK) == -1)
		{
			ev = LV2_OSC_STREAM_ERRNO(ev, errno);
			goto fail;
		}

		const int sendbuff = LV2_OSC_STREAM_SNDBUF;
		const int recvbuff = LV2_OSC_STREAM_RCVBUF;
		const int reuseaddr = 1;

		if(setsockopt(stream->sock, SOL_SOCKET,
			SO_SNDBUF, &sendbuff, sizeof(sendbuff)) == -1)
		{
			ev = LV2_OSC_STREAM_ERRNO(ev, errno);
			goto fail;
		}

		if(setsockopt(stream->sock, SOL_SOCKET,
			SO_RCVBUF, &recvbuff, sizeof(recvbuff)) == -1)
		{
			ev = LV2_OSC_STREAM_ERRNO(ev, errno);
			goto fail;
		}

		if(setsockopt(stream->sock, SOL_SOCKET,
			SO_REUSEADDR, &reuseaddr, sizeof(reuseaddr)) == -1)
		{
			ev = LV2_OSC_STREAM_ERRNO(ev, errno);
			goto fail;
		}

		if(stream->socket_family == AF_INET) // IPv4
		{
			if(stream->server)
			{
				// resolve self address
				struct addrinfo hints;
				memset(&hints, 0x0, sizeof(struct addrinfo));
				hints.ai_family = stream->socket_family;
				hints.ai_socktype = stream->socket_type;
				hints.ai_protocol = stream->protocol;

				struct addrinfo *res;
				if(getaddrinfo(node, service, &hints, &res) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}
				if(res->ai_addrlen != sizeof(stream->peer.in4))
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, EPROTOTYPE);
					goto fail;
				}

				stream->self.len = res->ai_addrlen;
				memcpy(&stream->self.in4, res->ai_addr, res->ai_addrlen);
				stream->self.in4.sin_addr.s_addr = htonl(INADDR_ANY);

				freeaddrinfo(res);

				if(bind(stream->sock, (struct sockaddr *)&stream->self.in4,
					stream->self.len) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}
			}
			else // client
			{
				stream->self.len = sizeof(stream->self.in4);
				stream->self.in4.sin_family = stream->socket_family;
				stream->self.in4.sin_port = htons(0);
				stream->self.in4.sin_addr.s_addr = htonl(INADDR_ANY);

				if(bind(stream->sock, (struct sockaddr *)&stream->self.in4,
					stream->self.len) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}

				// resolve peer address
				struct addrinfo hints;
				memset(&hints, 0x0, sizeof(struct addrinfo));
				hints.ai_family = stream->socket_family;
				hints.ai_socktype = stream->socket_type;
				hints.ai_protocol = stream->protocol;

				struct addrinfo *res;
				if(getaddrinfo(node, service, &hints, &res) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}
				if(res->ai_addrlen != sizeof(stream->peer.in4))
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, EPROTOTYPE);
					goto fail;
				}

				stream->peer.len = res->ai_addrlen;
				memcpy(&stream->peer.in4, res->ai_addr, res->ai_addrlen);

				freeaddrinfo(res);
			}

			if(stream->socket_type == SOCK_DGRAM)
			{
				const int broadcast = 1;

				if(setsockopt(stream->sock, SOL_SOCKET, SO_BROADCAST,
					&broadcast, sizeof(broadcast)) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}

				//FIXME handle multicast
			}
			else if(stream->socket_type == SOCK_STREAM)
			{
				const int flag = 1;

				if(setsockopt(stream->sock, stream->protocol,
					TCP_NODELAY, &flag, sizeof(flag)) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}

				if(setsockopt(stream->sock, SOL_SOCKET,
					SO_KEEPALIVE, &flag, sizeof(flag)) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}

				if(stream->server)
				{
					if(listen(stream->sock, 1) != 0)
					{
						ev = LV2_OSC_STREAM_ERRNO(ev, errno);
						goto fail;
					}
				}
				else // client
				{
					if(connect(stream->sock, (struct sockaddr *)&stream->peer.in4,
						stream->peer.len) == 0)
					{
						stream->connected = true;
					}
				}
			}
			else
			{
				ev = LV2_OSC_STREAM_ERRNO(ev, EPROTOTYPE);
				goto fail;
			}
		}
		else if(stream->socket_family == AF_INET6) // IPv6
		{
			if(stream->server)
			{
				// resolve self address
				struct addrinfo hints;
				memset(&hints, 0x0, sizeof(struct addrinfo));
				hints.ai_family = stream->socket_family;
				hints.ai_socktype = stream->socket_type;
				hints.ai_protocol = stream->protocol;

				struct addrinfo *res;
				if(getaddrinfo(node, service, &hints, &res) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}
				if(res->ai_addrlen != sizeof(stream->peer.in6))
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, EPROTOTYPE);
					goto fail;
				}

				stream->self.len = res->ai_addrlen;
				memcpy(&stream->self.in6, res->ai_addr, res->ai_addrlen);
				stream->self.in6.sin6_addr = in6addr_any;
				if(iface)
				{
					stream->self.in6.sin6_scope_id = if_nametoindex(iface);
				}

				freeaddrinfo(res);

				if(bind(stream->sock, (struct sockaddr *)&stream->self.in6,
					stream->self.len) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}
			}
			else // client
			{
				stream->self.len = sizeof(stream->self.in6);
				stream->self.in6.sin6_family = stream->socket_family;
				stream->self.in6.sin6_port = htons(0);
				stream->self.in6.sin6_addr = in6addr_any;
				if(iface)
				{
					stream->self.in6.sin6_scope_id = if_nametoindex(iface);
				}

				if(bind(stream->sock, (struct sockaddr *)&stream->self.in6,
					stream->self.len) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}

				// resolve peer address
				struct addrinfo hints;
				memset(&hints, 0x0, sizeof(struct addrinfo));
				hints.ai_family = stream->socket_family;
				hints.ai_socktype = stream->socket_type;
				hints.ai_protocol = stream->protocol;

				struct addrinfo *res;
				if(getaddrinfo(node, service, &hints, &res) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}
				if(res->ai_addrlen != sizeof(stream->peer.in6))
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, EPROTOTYPE);
					goto fail;
				}

				stream->peer.len = res->ai_addrlen;
				memcpy(&stream->peer.in6, res->ai_addr, res->ai_addrlen);

				if(iface)
				{
					stream->peer.in6.sin6_scope_id = if_nametoindex(iface);
				}

				freeaddrinfo(res);
			}

			if(stream->socket_type == SOCK_DGRAM)
			{
				// nothing to do
			}
			else if(stream->socket_type == SOCK_STREAM)
			{
				const int flag = 1;

				if(setsockopt(stream->sock, stream->protocol,
					TCP_NODELAY, &flag, sizeof(flag)) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}

				if(setsockopt(stream->sock, SOL_SOCKET,
					SO_KEEPALIVE, &flag, sizeof(flag)) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					goto fail;
				}

				if(stream->server)
				{
					if(listen(stream->sock, 1) != 0)
					{
						ev = LV2_OSC_STREAM_ERRNO(ev, errno);
						goto fail;
					}
				}
				else // client
				{
					if(connect(stream->sock, (struct sockaddr *)&stream->peer.in6,
						stream->peer.len) == 0)
					{
						stream->connected = true;
					}
				}
			}
			else
			{
				ev = LV2_OSC_STREAM_ERRNO(ev, EPROTOTYPE);
				goto fail;
			}
		}
		else
		{
			ev = LV2_OSC_STREAM_ERRNO(ev, EPROTOTYPE);
			goto fail;
		}
	}

	free(dup);

	return ev;

fail:
	if(dup)
	{
		free(dup);
	}

	_close_socket(&stream->sock);

	return ev;
}

int
lv2_osc_stream_init(LV2_OSC_Stream *stream, const char *url,
	const LV2_OSC_Driver *driv, void *data)
{
	memset(stream, 0x0, sizeof(LV2_OSC_Stream));

	strncpy(stream->url, url, sizeof(stream->url) - 1);
	stream->driv = driv;
	stream->data = data;
	stream->sock = -1;
	stream->fd = -1;

	return _lv2_osc_stream_reinit(stream);
}

#define SLIP_END					0300	// 0xC0, 192, indicates end of packet
#define SLIP_ESC					0333	// 0xDB, 219, indicates byte stuffing
#define SLIP_END_REPLACE	0334	// 0xDC, 220, ESC ESC_END means END data byte
#define SLIP_ESC_REPLACE	0335	// 0xDD, 221, ESC ESC_ESC means ESC data byte

// SLIP encoding
size_t
lv2_osc_slip_encode_size(const uint8_t *dst, size_t len)
{
	if(len == 0)
	{
		return 0;
	}

	const uint8_t *end = dst + len;

	// estimate new size
	size_t size = 2; // double ended SLIP
	for(const uint8_t *from=dst; from<end; from++, size++)
	{
		if( (*from == SLIP_END) || (*from == SLIP_ESC))
		{
			size ++;
		}
	}

	return size;
}

size_t
lv2_osc_slip_encode_inline(uint8_t *dst, size_t len)
{
	// estimate new size
	const size_t size = lv2_osc_slip_encode_size(dst, len);

	// ignore empty message
	if(len == 0)
	{
		return 0;
	}

	// fast track if no escaping needed
	if(size == len + 2)
	{
		memmove(dst+1, dst, len);
		dst[0] = SLIP_END;
		dst[size-1] = SLIP_END;

		return size;
	}

	const uint8_t *end = dst + len;

	// slow track if some escaping needed
	uint8_t *to = dst + size - 1;
	*to-- = SLIP_END;
	for(const uint8_t *from=end-1; from>=dst; from--)
	{
		if(*from == SLIP_END)
		{
			*to-- = SLIP_END_REPLACE;
			*to-- = SLIP_ESC;
		}
		else if(*from == SLIP_ESC)
		{
			*to-- = SLIP_ESC_REPLACE;
			*to-- = SLIP_ESC;
		}
		else
		{
			*to-- = *from;
		}
	}
	*to-- = SLIP_END;

	return size;
}

// SLIP decoding
size_t 
lv2_osc_slip_decode_inline(uint8_t *dst, size_t len, size_t *size)
{
	const uint8_t *src = dst;
	const uint8_t *end = dst + len;
	uint8_t *ptr = dst;

	bool whole = false;

	if( (src < end) && (*src == SLIP_END) )
	{
		 whole = true;
		 src++;
	}

	while(src < end)
	{
		if(*src == SLIP_ESC)
		{
			if(src == end-1)
			{
				break;
			}

			src++;
			if(*src == SLIP_END_REPLACE)
			{
				*ptr++ = SLIP_END;
			}
			else if(*src == SLIP_ESC_REPLACE)
			{
				*ptr++ = SLIP_ESC;
			}
			src++;
		}
		else if(*src == SLIP_END)
		{
			src++;

			*size = whole ? ptr - dst : 0;
			return src - dst;
		}
		else
		{
			*ptr++ = *src++;
		}
	}

	*size = 0;
	return 0;
}

static LV2_OSC_Enum
_lv2_osc_stream_run_udp(LV2_OSC_Stream *stream)
{
	LV2_OSC_Enum ev = LV2_OSC_NONE;

	// send everything
	if(stream->peer.len) // has a peer
	{
		const uint8_t *buf;
		size_t tosend;

		while( (buf = stream->driv->read_req(stream->data, &tosend)) )
		{
			const ssize_t sent = sendto(stream->sock, buf, tosend, 0,
				(struct sockaddr *)&stream->peer.in6, stream->peer.len);

			if(sent == -1)
			{
				if( (errno == EAGAIN) || (errno == EWOULDBLOCK) )
				{
					// full queue
					break;
				}

				ev = LV2_OSC_STREAM_ERRNO(ev, errno);
				break;
			}
			else if(sent != (ssize_t)tosend)
			{
				ev = LV2_OSC_STREAM_ERRNO(ev, EIO);
				break;
			}

			stream->driv->read_adv(stream->data);
			ev |= LV2_OSC_SEND;
		}
	}

	// recv everything
	{
		uint8_t *buf;
		size_t max_len;

		while( (buf = stream->driv->write_req(stream->data,
			LV2_OSC_STREAM_REQBUF, &max_len)) )
		{
			struct sockaddr_in6 in;
			socklen_t in_len = sizeof(in);

			memset(&in, 0, in_len);
			const ssize_t recvd = recvfrom(stream->sock, buf, max_len, 0,
				(struct sockaddr *)&in, &in_len);

			if(recvd == -1)
			{
				if( (errno == EAGAIN) || (errno == EWOULDBLOCK) )
				{
					// empty queue
					break;
				}

				ev = LV2_OSC_STREAM_ERRNO(ev, errno);
				break;
			}
			else if(recvd == 0)
			{
				// peer has shut down
				break;
			}

			stream->peer.len = in_len;
			memcpy(&stream->peer.in6, &in, in_len);

			stream->driv->write_adv(stream->data, recvd);
			ev |= LV2_OSC_RECV;
		}
	}

	return ev;
}

static LV2_OSC_Enum
_lv2_osc_stream_run_tcp(LV2_OSC_Stream *stream)
{
	LV2_OSC_Enum ev = LV2_OSC_NONE;

	// handle connections
	if(!stream->connected) // no peer
	{
		if(stream->server)
		{
			stream->peer.len = sizeof(stream->peer.in6);
			stream->fd = accept(stream->sock, (struct sockaddr *)&stream->peer.in6,
				&stream->peer.len);

			if(stream->fd >= 0)
			{
				const int flag = 1;
				const int sendbuff = LV2_OSC_STREAM_SNDBUF;
				const int recvbuff = LV2_OSC_STREAM_RCVBUF;

				if(fcntl(stream->fd, F_SETFL, O_NONBLOCK) == -1)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
				}

				if(setsockopt(stream->fd, stream->protocol,
					TCP_NODELAY, &flag, sizeof(flag)) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
				}

				if(setsockopt(stream->sock, SOL_SOCKET,
					SO_KEEPALIVE, &flag, sizeof(flag)) != 0)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
				}

				if(setsockopt(stream->fd, SOL_SOCKET,
					SO_SNDBUF, &sendbuff, sizeof(sendbuff)) == -1)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
				}

				if(setsockopt(stream->fd, SOL_SOCKET,
					SO_RCVBUF, &recvbuff, sizeof(recvbuff)) == -1)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
				}

				stream->connected = true; // orderly accept
			}
			else
			{
				//ev = LV2_OSC_STREAM_ERRNO(ev, errno);
			}
		}
		else
		{
			if(stream->sock < 0)
			{
				ev = _lv2_osc_stream_reinit(stream);
			}

			if(connect(stream->sock, (struct sockaddr *)&stream->peer.in6,
				stream->peer.len) == 0)
			{
				stream->connected = true; // orderly (re)connect
			}
			else
			{
				//if(errno == EISCONN)
				//{
				//	_close_socket(&stream->sock);
				//}

				//ev = LV2_OSC_STREAM_ERRNO(ev, errno);
			}
		}
	}

	// send everything
	if(stream->connected)
	{
		int *fd = stream->server
			? &stream->fd
			: &stream->sock;

		if(*fd >= 0)
		{
			const uint8_t *buf;
			size_t tosend;

			while( (buf = stream->driv->read_req(stream->data, &tosend)) )
			{
				if(stream->slip) // SLIP framed
				{
					const size_t nsize = lv2_osc_slip_encode_size(buf, tosend);

					if(nsize <= sizeof(stream->tx_buf)) // check if there is enough memory
					{
						memcpy(stream->tx_buf, buf, tosend);
						tosend = lv2_osc_slip_encode_inline(stream->tx_buf, tosend);
					}
					else
					{
						tosend = 0;
					}
				}
				else // uint32_t prefix frames
				{
					const size_t nsize = tosend + sizeof(uint32_t);

					if(nsize <= sizeof(stream->tx_buf)) // check if there is enough memory
					{
						const uint32_t prefix = htonl(tosend);

						memcpy(stream->tx_buf, &prefix, sizeof(uint32_t));
						memcpy(stream->tx_buf + sizeof(uint32_t), buf, tosend);
						tosend = nsize;
					}
					else
					{
						tosend = 0;
					}
				}

				const ssize_t sent = tosend
					? send(*fd, stream->tx_buf, tosend, 0)
					: 0;

				if(sent == -1)
				{
					if( (errno == EAGAIN) || (errno == EWOULDBLOCK) )
					{
						// empty queue
						break;
					}

					_close_socket(fd);
					stream->connected = false;
					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					break;
				}
				else if(sent != (ssize_t)tosend)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, EIO);
					break;
				}

				stream->driv->read_adv(stream->data);
				ev |= LV2_OSC_SEND;
			}
		}
	}

	// recv everything
	if(stream->connected)
	{
		int *fd = stream->server
			? &stream->fd
			: &stream->sock;

		if(*fd >= 0)
		{
			if(stream->slip) // SLIP framed
			{
				while(true)
				{
					ssize_t recvd = recv(*fd, stream->rx_buf + stream->rx_off,
						sizeof(stream->rx_buf) - stream->rx_off, 0);

					if(recvd == -1)
					{
						if( (errno == EAGAIN) || (errno == EWOULDBLOCK) )
						{
							// empty queue
							break;
						}

						_close_socket(fd);
						stream->connected = false;
						ev = LV2_OSC_STREAM_ERRNO(ev, errno);
						break;
					}
					else if(recvd == 0)
					{
						_close_socket(fd);
						stream->connected = false; // orderly shutdown
						break;
					}

					uint8_t *ptr = stream->rx_buf;
					recvd += stream->rx_off;

					while(recvd > 0)
					{
						size_t size;
						size_t parsed = lv2_osc_slip_decode_inline(ptr, recvd, &size);

						if(size) // dispatch
						{
							uint8_t *buf;

							if( (buf = stream->driv->write_req(stream->data, size, NULL)) )
							{
								memcpy(buf, ptr, size);

								stream->driv->write_adv(stream->data, size);
								ev |= LV2_OSC_RECV;
							}
							else
							{
								parsed = 0;
								ev = LV2_OSC_STREAM_ERRNO(ev, ENOMEM);
							}
						}

						if(parsed)
						{
							ptr += parsed;
							recvd -= parsed;
						}
						else
						{
							break;
						}
					}

					if(recvd > 0) // is there remaining chunk for next call?
					{
						memmove(stream->rx_buf, ptr, recvd);
						stream->rx_off = recvd;
					}
					else
					{
						stream->rx_off = 0;
					}

					break;
				}
			}
			else // uint32_t prefix frames
			{
				uint8_t *buf;
				
				while( (buf = stream->driv->write_req(stream->data,
					LV2_OSC_STREAM_REQBUF, NULL)) )
				{
					uint32_t prefix;

					ssize_t recvd = recv(*fd, &prefix, sizeof(uint32_t), 0);
					if(recvd == sizeof(uint32_t))
					{
						prefix = ntohl(prefix); //FIXME check prefix <= max_len
						recvd = recv(*fd, buf, prefix, 0);
					}
					else if(recvd == -1)
					{
						if( (errno == EAGAIN) || (errno == EWOULDBLOCK) )
						{
							// empty queue
							break;
						}

						_close_socket(fd);
						stream->connected = false;
						ev = LV2_OSC_STREAM_ERRNO(ev, errno);
						break;
					}
					else if(recvd == 0)
					{
						_close_socket(fd);
						stream->connected = false; // orderly shutdown
						break;
					}

					stream->driv->write_adv(stream->data, recvd);
					ev |= LV2_OSC_RECV;
				}
			}
		}
	}

	if(stream->connected)
	{
		ev |= LV2_OSC_CONN;
	}

	return ev;
}

static LV2_OSC_Enum
_lv2_osc_stream_run_ser(LV2_OSC_Stream *stream)
{
	LV2_OSC_Enum ev = LV2_OSC_NONE;

	// send everything
	{
		const int fd = stream->sock;

		if(fd >= 0)
		{
			const uint8_t *buf;
			size_t tosend;

			while( (buf = stream->driv->read_req(stream->data, &tosend)) )
			{
				if(stream->slip) // SLIP framed
				{
					const size_t nsize = lv2_osc_slip_encode_size(buf, tosend);

					if(nsize <= sizeof(stream->tx_buf)) // check if there is enough memory
					{
						memcpy(stream->tx_buf, buf, tosend);
						tosend = lv2_osc_slip_encode_inline(stream->tx_buf, tosend);
					}
					else
					{
						tosend = 0;
					}
				}
				else // uint32_t prefix frames
				{
					const size_t nsize = tosend + sizeof(uint32_t);

					if(nsize <= sizeof(stream->tx_buf)) // check if there is enough memory
					{
						const uint32_t prefix = htonl(tosend);

						memcpy(stream->tx_buf, &prefix, sizeof(uint32_t));
						memcpy(stream->tx_buf + sizeof(uint32_t), buf, tosend);
						tosend = nsize;
					}
					else
					{
						tosend = 0;
					}
				}

				const ssize_t sent = tosend
					? write(fd, stream->tx_buf, tosend)
					: 0;

				if(sent == -1)
				{
					if( (errno == EAGAIN) || (errno == EWOULDBLOCK) )
					{
						// empty queue
						break;
					}

					ev = LV2_OSC_STREAM_ERRNO(ev, errno);
					break;
				}
				else if(sent != (ssize_t)tosend)
				{
					ev = LV2_OSC_STREAM_ERRNO(ev, EIO);
					break;
				}

				stream->driv->read_adv(stream->data);
				ev |= LV2_OSC_SEND;
			}
		}
	}

	// recv everything
	{
		const int fd = stream->sock;

		if(fd >= 0)
		{
			if(stream->slip) // SLIP framed
			{
				while(true)
				{
					ssize_t recvd = read(fd, stream->rx_buf + stream->rx_off,
						sizeof(stream->rx_buf) - stream->rx_off);

					if(recvd == -1)
					{
						if( (errno == EAGAIN) || (errno == EWOULDBLOCK) )
						{
							// empty queue
							break;
						}

						stream->connected = false;
						ev = LV2_OSC_STREAM_ERRNO(ev, errno);
						break;
					}
					else if(recvd == 0)
					{
						// orderly shutdown
						break;
					}

					uint8_t *ptr = stream->rx_buf;
					recvd += stream->rx_off;

					while(recvd > 0)
					{
						size_t size;
						size_t parsed = lv2_osc_slip_decode_inline(ptr, recvd, &size);

						if(size) // dispatch
						{
							uint8_t *buf;

							if( (buf = stream->driv->write_req(stream->data, size, NULL)) )
							{
								memcpy(buf, ptr, size);

								stream->driv->write_adv(stream->data, size);
								ev |= LV2_OSC_RECV;
							}
							else
							{
								parsed = 0;
								ev = LV2_OSC_STREAM_ERRNO(ev, ENOMEM);
							}
						}

						if(parsed)
						{
							ptr += parsed;
							recvd -= parsed;
						}
						else
						{
							break;
						}
					}

					if(recvd > 0) // is there remaining chunk for next call?
					{
						memmove(stream->rx_buf, ptr, recvd);
						stream->rx_off = recvd;
					}
					else
					{
						stream->rx_off = 0;
					}

					break;
				}
			}
			else // uint32_t prefix frames
			{
				uint8_t *buf;
				
				while( (buf = stream->driv->write_req(stream->data,
					LV2_OSC_STREAM_REQBUF, NULL)) )
				{
					uint32_t prefix;

					ssize_t recvd = read(fd, &prefix, sizeof(uint32_t));
					if(recvd == sizeof(uint32_t))
					{
						prefix = ntohl(prefix); //FIXME check prefix <= max_len
						recvd = read(fd, buf, prefix);
					}
					else if(recvd == -1)
					{
						if( (errno == EAGAIN) || (errno == EWOULDBLOCK) )
						{
							// empty queue
							break;
						}

						stream->connected = false;
						ev = LV2_OSC_STREAM_ERRNO(ev, errno);
						break;
					}
					else if(recvd == 0)
					{
						// orderly shutdown
						break;
					}

					stream->driv->write_adv(stream->data, recvd);
					ev |= LV2_OSC_RECV;
				}
			}
		}
	}

	if(stream->connected)
	{
		ev |= LV2_OSC_CONN;
	}

	return ev;
}

LV2_OSC_Enum
lv2_osc_stream_run(LV2_OSC_Stream *stream)
{
	LV2_OSC_Enum ev = LV2_OSC_NONE;

	switch(stream->socket_type)
	{
		case SOCK_DGRAM:
		{
			ev |= _lv2_osc_stream_run_udp(stream);
		} break;
		case SOCK_STREAM:
		{
			ev |= _lv2_osc_stream_run_tcp(stream);
		} break;
		default:
		{
			ev |= _lv2_osc_stream_run_ser(stream);
		} break;
	}

	return ev;
}

int
lv2_osc_stream_get_file_descriptors(LV2_OSC_Stream *stream, int fds [2])
{
	if(!fds)
	{
		return 1;
	}

	fds[0] = stream->sock;
	fds[1] = stream->fd;

	return 0;
}

LV2_OSC_Enum
lv2_osc_stream_pollin(LV2_OSC_Stream *stream, int timeout_ms)
{
	int fd [2];

	if(lv2_osc_stream_get_file_descriptors(stream, fd) != 0)
	{
		return LV2_OSC_STREAM_ERRNO(LV2_OSC_NONE, EBADF);
	}

	struct pollfd fds [2] = {
		[0] = {
			.fd = fd[0],
			.events = POLLIN,
			.revents = 0
		},
		[1] = {
			.fd = fd[1],
			.events = POLLIN,
			.revents = 0
		}
	};

	const int res = poll(fds, 2, timeout_ms);
	if(res < 0)
	{
		return LV2_OSC_STREAM_ERRNO(LV2_OSC_NONE, errno);
	}

#if 0
	fprintf(stderr, "++ %i: %i %i %i %i\n", res,
		fds[0].fd, (int)fds[0].revents,
		fds[1].fd, (int)fds[1].revents);
#endif

	return lv2_osc_stream_run(stream);
}

A subprojects/osc.lv2/src/util.c => subprojects/osc.lv2/src/util.c +599 -0
@@ 0,0 1,599 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#include <assert.h>
#include <ctype.h>
#include <inttypes.h>
#include <string.h>
#include <alloca.h>
#include <fnmatch.h>
#include <stdlib.h>

#include <osc.lv2/util.h>

#include <lv2/atom/util.h>

#ifndef __unused
#	define __unused __attribute__((unused))
#endif

// characters not allowed in OSC path string
static const char invalid_path_chars [] = {
	' ', '#',
	'\0'
};

// allowed characters in OSC format string
static const char valid_format_chars [] = {
	LV2_OSC_INT32, LV2_OSC_FLOAT, LV2_OSC_STRING, LV2_OSC_BLOB,
	LV2_OSC_TRUE, LV2_OSC_FALSE, LV2_OSC_NIL, LV2_OSC_IMPULSE,
	LV2_OSC_INT64, LV2_OSC_DOUBLE, LV2_OSC_TIMETAG,
	LV2_OSC_SYMBOL, LV2_OSC_MIDI,
	'\0'
};

bool
lv2_osc_pattern_match(const char *from, const char *name, size_t len)
{
	size_t nbrace = 0;

#if defined(FNM_EXTMATCH)
	// count opening curly braces
	for(size_t i = 0; i < len; i++)
	{
		if(from[i] == '{')
		{
			nbrace++;
		}
	}
#endif

	// allocate temporary pattern buffer
	char *pattern = alloca(len + nbrace + 1);

	if(!pattern)
	{
		return false;
	}

#if defined(FNM_EXTMATCH)
	// convert {x,y} to @(x|y) for extended fnmatch
	if(nbrace)
	{
		char *ptr = pattern;

		for(size_t i = 0; i < len; i++)
		{
			switch(from[i])
			{
				case '{':
				{
					*ptr++ = '@';
					*ptr++ = '(';
				} break;
				case ',':
				{
					*ptr++ = '|';
				} break;
				case '}':
				{
					*ptr++ = ')';
				} break;
				default:
				{
					*ptr++ = from[i];
				} break;
			}
		}
	}
	else
#endif
	{
		memcpy(pattern, from, len);
	}

	// terminate pattern string with null terminator
	pattern[len + nbrace] = '\0';

#if defined(FNM_EXTMATCH)
	return fnmatch(pattern, name, FNM_NOESCAPE | FNM_EXTMATCH) == 0 ? true : false;
#else
	return fnmatch(pattern, name, FNM_NOESCAPE) == 0 ? true : false;
#endif
}

void
_lv2_osc_hooks_internal(const char *path, const char *from,
	const LV2_Atom_Tuple *arguments, const LV2_OSC_Hook *hooks)
{
	const char *ptr = strchr(from, '/');

	const size_t len = ptr
		? (size_t)(ptr - from)
		: strlen(from);

	for(const LV2_OSC_Hook *hook = hooks; hook && hook->name; hook++)
	{
		if(lv2_osc_pattern_match(from, hook->name, len))
		{
			if(hook->hooks && ptr)
			{
				from = &ptr[1];

				_lv2_osc_hooks_internal(path, from, arguments, hook->hooks);
			}
			else if(hook->method && !ptr)
			{
				hook->method(path, arguments, hook->data);
			}
		}
	}
}

void
lv2_osc_hooks(const char *path, const LV2_Atom_Tuple *arguments, void *data)
{
	const LV2_OSC_Hook *hooks = data;
	const char *from = &path[1];

	_lv2_osc_hooks_internal(path, from, arguments, hooks);
}

bool
lv2_osc_check_path(const char *path)
{
	assert(path);

	if(path[0] != '/')
	{
		return false;
	}

	for(const char *ptr=path+1; *ptr!='\0'; ptr++)
	{
		if( (isprint(*ptr) == 0) || (strchr(invalid_path_chars, *ptr) != NULL) )
		{
			return false;
		}
	}

	return true;
}

bool
lv2_osc_check_fmt(const char *format, int offset)
{
	assert(format);

	if(offset && (format[0] != ',') )
	{
		return false;
	}

	for(const char *ptr=format+offset; *ptr!='\0'; ptr++)
	{
		if(strchr(valid_format_chars, *ptr) == NULL)
		{
			return false;
		}
	}

	return true;
}

uint64_t 
lv2_osc_timetag_parse(const LV2_OSC_Timetag *timetag)
{
	return ((uint64_t)timetag->integral << 32) | timetag->fraction;
}

LV2_OSC_Timetag *
lv2_osc_timetag_create(LV2_OSC_Timetag *timetag, uint64_t tt)
{
	timetag->integral = tt >> 32;
	timetag->fraction = tt & 0xffffffff;

	return timetag;
}

bool
lv2_osc_is_packet_type(LV2_OSC_URID *osc_urid, LV2_URID type)
{
	return type == osc_urid->OSC_Packet;
}

bool
lv2_osc_is_bundle_type(LV2_OSC_URID *osc_urid, LV2_URID type)
{
	return type == osc_urid->OSC_Bundle;
}

bool
lv2_osc_is_message_type(LV2_OSC_URID *osc_urid, LV2_URID type)
{
	return type == osc_urid->OSC_Message;
}

bool
lv2_osc_is_message_or_bundle_type(LV2_OSC_URID *osc_urid, LV2_URID type)
{
	return lv2_osc_is_message_type(osc_urid, type)
		|| lv2_osc_is_bundle_type(osc_urid, type);
}

LV2_OSC_Type
lv2_osc_argument_type(LV2_OSC_URID *osc_urid, const LV2_Atom *atom)
{
	const LV2_Atom_Object *obj = (const LV2_Atom_Object *)atom;

	if(atom->type == osc_urid->ATOM_Int)
	{
		return LV2_OSC_INT32;
	}
	else if(atom->type == osc_urid->ATOM_Float)
	{
		return LV2_OSC_FLOAT;
	}
	else if(atom->type == osc_urid->ATOM_String)
	{
		return LV2_OSC_STRING;
	}
	else if(atom->type == osc_urid->ATOM_Chunk)
	{
		return LV2_OSC_BLOB;
	}

	else if(atom->type == osc_urid->ATOM_Long)
	{
		return LV2_OSC_INT64;
	}
	else if(atom->type == osc_urid->ATOM_Double)
	{
		return LV2_OSC_DOUBLE;
	}
	else if( (atom->type == osc_urid->ATOM_Object) && (obj->body.otype == osc_urid->OSC_Timetag) )
	{
		return LV2_OSC_TIMETAG;
	}

	else if(atom->type == osc_urid->ATOM_Bool)
	{
		if(((const LV2_Atom_Bool *)atom)->body)
		{
			return LV2_OSC_TRUE;
		}
		else
		{
			return LV2_OSC_FALSE;
		}
	}
	else if(atom->type == osc_urid->ATOM_Literal)
	{
		const LV2_Atom_Literal *lit = (const LV2_Atom_Literal *)atom;
		if(lit->body.datatype == osc_urid->OSC_Nil)
		{
			return LV2_OSC_NIL;
		}
		else if(lit->body.datatype == osc_urid->OSC_Impulse)
		{
			return LV2_OSC_IMPULSE;
		}
		else if(lit->body.datatype == osc_urid->OSC_Char)
		{
			return LV2_OSC_CHAR;
		}
		else if(lit->body.datatype == osc_urid->OSC_RGBA)
		{
			return LV2_OSC_RGBA;
		}
	}

	else if(atom->type == osc_urid->ATOM_URID)
	{
		return LV2_OSC_SYMBOL;
	}
	else if(atom->type == osc_urid->MIDI_MidiEvent)
	{
		return LV2_OSC_MIDI;
	}

	return '\0';
}

const LV2_Atom *
lv2_osc_int32_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom,
	int32_t *i)
{
	assert(i);
	*i = ((const LV2_Atom_Int *)atom)->body;

	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_float_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom,
	float *f)
{
	assert(f);
	*f = ((const LV2_Atom_Float *)atom)->body;

	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_string_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom,
	const char **s)
{
	assert(s);
	*s = LV2_ATOM_BODY_CONST(atom);

	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_blob_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom,
	uint32_t *size, const uint8_t **b)
{
	assert(size && b);
	*size = atom->size;
	*b = LV2_ATOM_BODY_CONST(atom);

	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_int64_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom,
	int64_t *h)
{
	assert(h);
	*h = ((const LV2_Atom_Long *)atom)->body;

	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_double_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom,
	double *d)
{
	assert(d);
	*d = ((const LV2_Atom_Double *)atom)->body;

	return lv2_atom_tuple_next(atom);
}

const LV2_Atom * 
lv2_osc_timetag_get(LV2_OSC_URID *osc_urid, const LV2_Atom *atom,
	LV2_OSC_Timetag *timetag)
{
	assert(timetag);

	const LV2_Atom_Long *integral = NULL;
	const LV2_Atom_Long *fraction = NULL;

	lv2_atom_object_get((const LV2_Atom_Object *)atom,
		osc_urid->OSC_timetagIntegral, &integral,
		osc_urid->OSC_timetagFraction, &fraction, 
		0);

	if(  integral && (integral->atom.type == osc_urid->ATOM_Long)
		&& fraction && (fraction->atom.type == osc_urid->ATOM_Long) )
	{
		timetag->integral = integral->body;
		timetag->fraction = fraction->body;
	}
	else
	{
		// set to immediate
		timetag->integral = 0;
		timetag->fraction = 1;
	}

	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_true_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom)
{
	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_false_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom)
{
	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_nil_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom)
{
	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_impulse_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom)
{
	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_symbol_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom,
	LV2_URID *S)
{
	assert(S);
	*S = ((const LV2_Atom_URID *)atom)->body;

	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_midi_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom,
	uint32_t *size, const uint8_t **m)
{
	assert(size && m);
	*size = atom->size;
	*m = LV2_ATOM_BODY_CONST(atom);

	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_char_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom, char *c)
{
	assert(c);
	const char *str = LV2_ATOM_CONTENTS_CONST(LV2_Atom_Literal, atom);
	*c = str[0];

	return lv2_atom_tuple_next(atom);
}

const LV2_Atom *
lv2_osc_rgba_get(LV2_OSC_URID *osc_urid __unused, const LV2_Atom *atom,
	uint8_t *r, uint8_t *g, uint8_t *b, uint8_t *a)
{
	assert(r && g && b && a);
	const char *str = LV2_ATOM_CONTENTS_CONST(LV2_Atom_Literal, atom);

	uint8_t *key [4] = {
		r, g, b, a
	};

	const char *pos = str;
	char *endptr;

	for(unsigned count = 0; count < 4; count++, pos += 2)
	{
		char buf [5] = {'0', 'x', pos[0], pos[1], '\0'};

		*key[count] = strtol(buf, &endptr, 16);
	}

	return lv2_atom_tuple_next(atom);
}

bool
lv2_osc_bundle_body_get(LV2_OSC_URID *osc_urid, uint32_t size, const LV2_Atom_Object_Body *body,
	const LV2_Atom_Object **timetag, const LV2_Atom_Tuple **items)
{
	assert(timetag && items);

	*timetag = NULL;
	*items = NULL;

	lv2_atom_object_body_get(size, body,
		osc_urid->OSC_bundleTimetag, timetag,
		osc_urid->OSC_bundleItems, items, 
		0);

	if(!*timetag || ((*timetag)->atom.type != osc_urid->ATOM_Object) || ((*timetag)->body.otype != osc_urid->OSC_Timetag))
	{
		return false;
	}
	if(!*items || ((*items)->atom.type != osc_urid->ATOM_Tuple))
	{
		return false;
	}

	return true;
}

bool
lv2_osc_bundle_get(LV2_OSC_URID *osc_urid, const LV2_Atom_Object *obj,
	const LV2_Atom_Object **timetag, const LV2_Atom_Tuple **items)
{
	return lv2_osc_bundle_body_get(osc_urid, obj->atom.size, &obj->body,
		timetag, items);
}

bool
lv2_osc_message_body_get(LV2_OSC_URID *osc_urid, uint32_t size, const LV2_Atom_Object_Body *body,
	const LV2_Atom_String **path, const LV2_Atom_Tuple **arguments)
{
	assert(path && arguments);

	*path = NULL;
	*arguments = NULL;

	lv2_atom_object_body_get(size, body,
		osc_urid->OSC_messagePath, path,
		osc_urid->OSC_messageArguments, arguments,
		0);

	if(!*path || ((*path)->atom.type != osc_urid->ATOM_String))
	{
		return false;
	}
	// message without arguments is valid
	if( *arguments && ((*arguments)->atom.type != osc_urid->ATOM_Tuple))
	{
		return false;
	}

	return true;
}

bool
lv2_osc_message_get(LV2_OSC_URID *osc_urid, const LV2_Atom_Object *obj,
	const LV2_Atom_String **path, const LV2_Atom_Tuple **arguments)
{
	return lv2_osc_message_body_get(osc_urid, obj->atom.size, &obj->body,
		path, arguments);
}

bool
lv2_osc_body_unroll(LV2_OSC_URID *osc_urid, uint32_t size, const LV2_Atom_Object_Body *body,
	LV2_OSC_Method method, void *data)
{
	if(body->otype == osc_urid->OSC_Bundle)
	{
		const LV2_Atom_Object *timetag = NULL;
		const LV2_Atom_Tuple *items = NULL;

		if(!lv2_osc_bundle_body_get(osc_urid, size, body, &timetag, &items))
		{
			return false;
		}

		LV2_OSC_Timetag tt;
		lv2_osc_timetag_get(osc_urid, &timetag->atom, &tt);

		LV2_ATOM_TUPLE_FOREACH(items, atom)
		{
			const LV2_Atom_Object *obj= (const LV2_Atom_Object *)atom;

			if(!lv2_osc_body_unroll(osc_urid, obj->atom.size, &obj->body, method, data))
			{
				return false;
			}
		}

		return true;
	}
	else if(body->otype == osc_urid->OSC_Message)
	{
		const LV2_Atom_String *path = NULL;
		const LV2_Atom_Tuple *arguments = NULL;

		if(!lv2_osc_message_body_get(osc_urid, size, body, &path, &arguments))
		{
			return false;
		}

		if(method)
		{
			method(LV2_ATOM_BODY_CONST(path), arguments, data);
		}

		return true;
	}

	return false;
}

bool
lv2_osc_unroll(LV2_OSC_URID *osc_urid, const LV2_Atom_Object *obj,
	LV2_OSC_Method method, void *data)
{
	return lv2_osc_body_unroll(osc_urid, obj->atom.size, &obj->body, method, data);
}

A subprojects/osc.lv2/src/writer.c => subprojects/osc.lv2/src/writer.c +622 -0
@@ 0,0 1,622 @@
/*
 * SPDX-FileCopyrightText: Hanspeter Portner <dev@open-music-kontrollers.ch>
 * SPDX-License-Identifier: Artistic-2.0
 */

#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <endian.h>
#include <inttypes.h>

#include <osc.lv2/writer.h>

#include <lv2/lv2plug.in/ns/ext/atom/util.h>

void
lv2_osc_writer_initialize(LV2_OSC_Writer *writer, uint8_t *buf, size_t size)
{
	writer->buf = buf;
	writer->ptr = buf;
	writer->end = buf + size;
}

size_t
lv2_osc_writer_get_size(LV2_OSC_Writer *writer)
{
	if(writer->ptr > writer->buf)
	{
		return writer->ptr - writer->buf;
	}

	return 0;
}

uint8_t * 
lv2_osc_writer_finalize(LV2_OSC_Writer *writer, size_t *size)
{
	*size = lv2_osc_writer_get_size(writer);

	if(*size)
	{
		return writer->buf;
	}

	return NULL;
}

bool
lv2_osc_writer_overflow(LV2_OSC_Writer *writer, size_t size)
{
	return writer->ptr + size >= writer->end;
}

bool
lv2_osc_writer_htobe32(LV2_OSC_Writer *writer, union swap32_t *s32)
{
	if(lv2_osc_writer_overflow(writer, 4))
	{
		return false;
	}

	s32->u = htobe32(s32->u);
	*(uint32_t *)writer->ptr = s32->u;
	writer->ptr += 4;

	return true;
}

bool 
lv2_osc_writer_htobe64(LV2_OSC_Writer *writer, union swap64_t *s64)
{
	if(lv2_osc_writer_overflow(writer, 8))
	{
		return false;
	}

	s64->u = htobe64(s64->u);
	*(uint64_t *)writer->ptr = s64->u;
	writer->ptr += 8;

	return true;
}

bool
lv2_osc_writer_add_int32(LV2_OSC_Writer *writer, int32_t i)
{
	return lv2_osc_writer_htobe32(writer, &(union swap32_t){ .i = i });
}

bool 
lv2_osc_writer_add_float(LV2_OSC_Writer *writer, float f)
{
	return lv2_osc_writer_htobe32(writer, &(union swap32_t){ .f = f });
}

bool 
lv2_osc_writer_add_string(LV2_OSC_Writer *writer, const char *s)
{
	const size_t rawlen = strlen(s) + 1;
	const size_t padded = LV2_OSC_PADDED_SIZE(rawlen);
	if(lv2_osc_writer_overflow(writer, padded))
	{
		return false;
	}

	const uint32_t blank = 0;
	memcpy(writer->ptr + padded - sizeof(uint32_t), &blank, sizeof(uint32_t));
	memcpy(writer->ptr, s, rawlen);
	writer->ptr += padded;

	return true;
}

bool
lv2_osc_writer_add_symbol(LV2_OSC_Writer *writer, const char *S)
{
	return lv2_osc_writer_add_string(writer, S);
}

bool
lv2_osc_writer_add_int64(LV2_OSC_Writer *writer, int64_t h)
{
	return lv2_osc_writer_htobe64(writer, &(union swap64_t){ .h = h });
}

bool 
lv2_osc_writer_add_double(LV2_OSC_Writer *writer, double d)
{
	return lv2_osc_writer_htobe64(writer, &(union swap64_t){ .d = d });
}

bool
lv2_osc_writer_add_timetag(LV2_OSC_Writer *writer, uint64_t u)
{
	return lv2_osc_writer_htobe64(writer, &(union swap64_t){ .u = u });
}

bool 
lv2_osc_writer_add_blob_inline(LV2_OSC_Writer *writer, int32_t len, uint8_t **body)
{
	const size_t len_padded = LV2_OSC_PADDED_SIZE(len);
	const size_t size = 4 + len_padded;
	if(lv2_osc_writer_overflow(writer, size))
	{
		return false;
	}

	if(!lv2_osc_writer_add_int32(writer, len))
	{
		return false;
	}

	*body = writer->ptr;
	//memset(&writer->ptr[len], 0x0, len_padded - len);
	writer->ptr += len_padded;

	return true;
}

bool 
lv2_osc_writer_add_blob(LV2_OSC_Writer *writer, int32_t len, const uint8_t *body)
{
	uint8_t *dst;
	if(!lv2_osc_writer_add_blob_inline(writer, len, &dst))
	{
		return false;
	}

	memcpy(dst, body, len);

	return true;
}

bool
lv2_osc_writer_add_midi_inline(LV2_OSC_Writer *writer, int32_t len, uint8_t **m)
{
	if( (len > 4) || lv2_osc_writer_overflow(writer, 4))
	{
		return false;
	}

	*m = writer->ptr;
	//memset(&writer->ptr[len], 0x0, 4 - len);
	writer->ptr += 4;

	return true;
}

bool 
lv2_osc_writer_add_midi(LV2_OSC_Writer *writer, int32_t len, const uint8_t *m)
{
	uint8_t *dst;
	if(!lv2_osc_writer_add_midi_inline(writer, len, &dst))
	{
		return false;
	}

	memcpy(dst, m, len);

	return true;
}

bool
lv2_osc_writer_add_rgba(LV2_OSC_Writer *writer, uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
	if(lv2_osc_writer_overflow(writer, 4))
	{
		return false;
	}

	writer->ptr[0] = r;
	writer->ptr[1] = g;
	writer->ptr[2] = b;
	writer->ptr[3] = a;
	writer->ptr += 4;

	return true;
}

bool
lv2_osc_writer_add_char(LV2_OSC_Writer *writer, char c)
{
	return lv2_osc_writer_add_int32(writer, (int32_t)c);
}

bool 
lv2_osc_writer_push_bundle(LV2_OSC_Writer *writer, LV2_OSC_Writer_Frame *frame, uint64_t t)
{
	if(lv2_osc_writer_overflow(writer, 16))
	{
		return false;
	}

	frame->ref = writer->ptr;

	strncpy((char *)writer->ptr, "#bundle", 8);
	writer->ptr += 8;

	return lv2_osc_writer_add_timetag(writer, t);
}

bool 
lv2_osc_writer_pop_bundle(LV2_OSC_Writer *writer, LV2_OSC_Writer_Frame *frame)
{
	union swap32_t s32 = { .i = writer->ptr - frame->ref - 16};

	if(s32.i <= 0)
	{
		writer->ptr = frame->ref;
		return false;
	}

	return true;
}

 bool
lv2_osc_writer_push_item(LV2_OSC_Writer *writer, LV2_OSC_Writer_Frame *frame)
{
	if(lv2_osc_writer_overflow(writer, 4))
	{
		return false;
	}

	frame->ref = writer->ptr;
	writer->ptr += 4;

	return true;
}

bool
lv2_osc_writer_pop_item(LV2_OSC_Writer *writer, LV2_OSC_Writer_Frame *frame)
{
	union swap32_t s32 = { .i = writer->ptr - frame->ref - 4};

	if(s32.i <= 0)
	{
		writer->ptr = frame->ref;
		return false;
	}

	s32.u = htobe32(s32.u);
	*(uint32_t *)frame->ref = s32.u;

	return true;
}

bool 
lv2_osc_writer_add_path(LV2_OSC_Writer *writer, const char *path)
{
	return lv2_osc_writer_add_string(writer, path);
}

bool 
lv2_osc_writer_add_format(LV2_OSC_Writer *writer, const char *fmt)
{
	const size_t rawlen = strlen(fmt) + 1;
	const size_t padded = LV2_OSC_PADDED_SIZE(rawlen + 1);
	if(lv2_osc_writer_overflow(writer, padded))
	{
		return false;
	}

	const uint32_t blank = 0;
	memcpy(writer->ptr + padded - sizeof(uint32_t), &blank, sizeof(uint32_t));
	*writer->ptr++ = ',';
	memcpy(writer->ptr, fmt, rawlen);
	writer->ptr += padded - 1;

	return true;
}

bool
lv2_osc_writer_arg_varlist(LV2_OSC_Writer *writer, const char *fmt, va_list args)
{
	for(const char *type = fmt; *type; type++)
	{
		switch( (LV2_OSC_Type)*type)
		{
			case LV2_OSC_INT32:
				if(!lv2_osc_writer_add_int32(writer, va_arg(args, int32_t)))
				{
					return false;
				}
				break;
			case LV2_OSC_FLOAT:
				if(!lv2_osc_writer_add_float(writer, (float)va_arg(args, double)))
				{
					return false;
				}
				break;
			case LV2_OSC_STRING:
				if(!lv2_osc_writer_add_string(writer, va_arg(args, const char *)))
				{
					return false;
				}
				break;
			case LV2_OSC_BLOB:
			{
				const int32_t len = va_arg(args, int32_t);
				if(!lv2_osc_writer_add_blob(writer, len, va_arg(args, const uint8_t *)))
				{
					return false;
				}
			}	break;

			case LV2_OSC_TRUE:
			case LV2_OSC_FALSE:
			case LV2_OSC_NIL:
			case LV2_OSC_IMPULSE:
				break;

			case LV2_OSC_INT64:
				if(!lv2_osc_writer_add_int64(writer, va_arg(args, int64_t)))
				{
					return false;
				}
				break;
			case LV2_OSC_DOUBLE:
				if(!lv2_osc_writer_add_double(writer, va_arg(args, double)))
				{
					return false;
				}
				break;
			case LV2_OSC_TIMETAG:
				if(!lv2_osc_writer_add_timetag(writer, va_arg(args, uint64_t)))
				{
					return false;
				}
				break;

			case LV2_OSC_MIDI:
			{
				const int32_t len = va_arg(args, int32_t);
				if(!lv2_osc_writer_add_midi(writer, len, va_arg(args, const uint8_t *)))
				{
					return false;
				}
			}	break;
			case LV2_OSC_SYMBOL:
				if(!lv2_osc_writer_add_symbol(writer, va_arg(args, const char *)))
				{
					return false;
				}
				break;
			case LV2_OSC_CHAR:
				if(!lv2_osc_writer_add_char(writer, va_arg(args, int)))
				{
					return false;
				}
				break;
			case LV2_OSC_RGBA:
			{
				const uint8_t r = va_arg(args, unsigned);
				const uint8_t g = va_arg(args, unsigned);
				const uint8_t b = va_arg(args, unsigned);
				const uint8_t a = va_arg(args, unsigned);
				if(!lv2_osc_writer_add_rgba(writer, r, g, b, a))
				{
					return false;
				}
			}	break;
		}
	}

	return true;
}

bool
lv2_osc_writer_arg_vararg(LV2_OSC_Writer *writer, const char *fmt, ...)
{
  va_list args;
  va_start(args, fmt);

	const bool res = lv2_osc_writer_arg_varlist(writer, fmt, args);

	va_end(args);

	return res;
}

bool
lv2_osc_writer_message_varlist(LV2_OSC_Writer *writer, const char *path, const char *fmt, va_list args)
{
	if(!lv2_osc_writer_add_path(writer, path))
	{
		return false;
	}

	if(!lv2_osc_writer_add_format(writer, fmt))
	{
		return false;
	}

	return lv2_osc_writer_arg_varlist(writer, fmt, args);
}

bool
lv2_osc_writer_message_vararg(LV2_OSC_Writer *writer, const char *path, const char *fmt, ...)
{
  va_list args;
  va_start(args, fmt);

	const bool res = lv2_osc_writer_message_varlist(writer, path, fmt, args);

	va_end(args);

	return res;
}

bool
lv2_osc_writer_packet(LV2_OSC_Writer *writer, LV2_OSC_URID *osc_urid,
	LV2_URID_Unmap *unmap, uint32_t size, const LV2_Atom_Object_Body *body)
{
	if(body->otype == osc_urid->OSC_Bundle)
	{
		const LV2_Atom_Object *timetag = NULL;
		const LV2_Atom_Tuple *items = NULL;

		if(!lv2_osc_bundle_body_get(osc_urid, size, body, &timetag, &items))
		{
			return false;
		}

		LV2_OSC_Timetag tt;
		LV2_OSC_Writer_Frame bndl = { .ref = 0 };

		lv2_osc_timetag_get(osc_urid, &timetag->atom, &tt);
		if(!lv2_osc_writer_push_bundle(writer, &bndl, lv2_osc_timetag_parse(&tt)))
		{
			return false;
		}