| 1 |
// example_server.c |
| 2 |
// |
| 3 |
/**************************************************************************** |
| 4 |
liblscp - LinuxSampler Control Protocol API |
| 5 |
Copyright (C) 2004-2006, rncbc aka Rui Nuno Capela. All rights reserved. |
| 6 |
|
| 7 |
This program is free software; you can redistribute it and/or |
| 8 |
modify it under the terms of the GNU General Public License |
| 9 |
as published by the Free Software Foundation; either version 2 |
| 10 |
of the License, or (at your option) any later version. |
| 11 |
|
| 12 |
This program is distributed in the hope that it will be useful, |
| 13 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 |
GNU General Public License for more details. |
| 16 |
|
| 17 |
You should have received a copy of the GNU General Public License along |
| 18 |
with this program; if not, write to the Free Software Foundation, Inc., |
| 19 |
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 |
|
| 21 |
*****************************************************************************/ |
| 22 |
|
| 23 |
#include "server.h" |
| 24 |
#include "parser.h" |
| 25 |
|
| 26 |
#include <time.h> |
| 27 |
|
| 28 |
#define SERVER_PORT 8888 |
| 29 |
|
| 30 |
#if defined(WIN32) |
| 31 |
static WSADATA _wsaData; |
| 32 |
#endif |
| 33 |
|
| 34 |
//////////////////////////////////////////////////////////////////////// |
| 35 |
|
| 36 |
lscp_status_t server_callback ( lscp_connect_t *pConnect, const char *pchBuffer, int cchBuffer, void *pvData ) |
| 37 |
{ |
| 38 |
lscp_status_t ret = LSCP_OK; |
| 39 |
lscp_parser_t tok; |
| 40 |
const char *pszResult = NULL; |
| 41 |
char szTemp[256]; |
| 42 |
int i; |
| 43 |
static int iSamplerChannel = 0; |
| 44 |
static int iAudioDevice = 0; |
| 45 |
static int iMidiDevice = 0; |
| 46 |
|
| 47 |
if (pchBuffer == NULL) { |
| 48 |
fprintf(stderr, "server_callback: addr=%s port=%d: ", |
| 49 |
inet_ntoa(pConnect->client.addr.sin_addr), |
| 50 |
htons(pConnect->client.addr.sin_port)); |
| 51 |
switch (cchBuffer) { |
| 52 |
case LSCP_CONNECT_OPEN: |
| 53 |
fprintf(stderr, "New client connection.\n"); |
| 54 |
break; |
| 55 |
case LSCP_CONNECT_CLOSE: |
| 56 |
fprintf(stderr, "Connection closed.\n"); |
| 57 |
break; |
| 58 |
} |
| 59 |
return ret; |
| 60 |
} |
| 61 |
|
| 62 |
lscp_socket_trace("server_callback", &(pConnect->client.addr), pchBuffer, cchBuffer); |
| 63 |
|
| 64 |
lscp_parser_init(&tok, pchBuffer, cchBuffer); |
| 65 |
|
| 66 |
if (lscp_parser_test(&tok, "GET")) { |
| 67 |
if (lscp_parser_test(&tok, "CHANNEL")) { |
| 68 |
if (lscp_parser_test(&tok, "INFO")) { |
| 69 |
// Getting sampler channel informations: |
| 70 |
// GET CHANNEL INFO <sampler-channel> |
| 71 |
pszResult = "ENGINE_NAME: DummyEngine\r\n" |
| 72 |
"INSTRUMENT_FILE: DummyInstrument.gig\r\n" |
| 73 |
"INSTRUMENT_NR: 0\r\n" |
| 74 |
"INSTRUMENT_NAME: Dummy Instrument\r\n" |
| 75 |
"INSTRUMENT_STATUS: 100\r\n" |
| 76 |
"AUDIO_OUTPUT_DEVICE: 0\r\n" |
| 77 |
"AUDIO_OUTPUT_CHANNELS: 2\r\n" |
| 78 |
"AUDIO_OUTPUT_ROUTING: 0,1\r\n" |
| 79 |
"MIDI_INPUT_DEVICE: 0\r\n" |
| 80 |
"MIDI_INPUT_PORT: 0\r\n" |
| 81 |
"MIDI_INPUT_CHANNEL: ALL\r\n" |
| 82 |
"VOLUME: 0.5\r\n" |
| 83 |
"MUTE: FALSE\r\n" |
| 84 |
"SOLO: TRUE\r\n"; |
| 85 |
} |
| 86 |
else if (lscp_parser_test(&tok, "VOICE_COUNT")) { |
| 87 |
// Current number of active voices: |
| 88 |
// GET CHANNEL VOICE_COUNT <sampler-channel> |
| 89 |
sprintf(szTemp, "%d", rand() % 100); |
| 90 |
pszResult = szTemp; |
| 91 |
} |
| 92 |
else if (lscp_parser_test(&tok, "STREAM_COUNT")) { |
| 93 |
// Current number of active disk streams: |
| 94 |
// GET CHANNEL STREAM_COUNT <sampler-channel> |
| 95 |
pszResult = "3\r\n"; |
| 96 |
} |
| 97 |
else if (lscp_parser_test(&tok, "BUFFER_FILL")) { |
| 98 |
if (lscp_parser_test(&tok, "BYTES")) { |
| 99 |
// Current fill state of disk stream buffers: |
| 100 |
// GET CHANNEL BUFFER_FILL BYTES <sampler-channel> |
| 101 |
sprintf(szTemp, "[1]%d,[2]%d,[3]%d\r\n", rand(), rand(), rand()); |
| 102 |
pszResult = szTemp; |
| 103 |
} |
| 104 |
else if (lscp_parser_test(&tok, "PERCENTAGE")) { |
| 105 |
// Current fill state of disk stream buffers: |
| 106 |
// GET CHANNEL BUFFER_FILL PERCENTAGE <sampler-channel> |
| 107 |
sprintf(szTemp, "[1]%d%%,[2]%d%%,[3]%d%%\r\n", rand() % 100, rand() % 100, rand() % 100); |
| 108 |
pszResult = szTemp; |
| 109 |
} |
| 110 |
else ret = LSCP_FAILED; |
| 111 |
} |
| 112 |
else ret = LSCP_FAILED; |
| 113 |
} |
| 114 |
else if (lscp_parser_test(&tok, "CHANNELS")) { |
| 115 |
// Current number of sampler channels: |
| 116 |
// GET CHANNELS |
| 117 |
sprintf(szTemp, "%d", iSamplerChannel); |
| 118 |
pszResult = szTemp; |
| 119 |
} |
| 120 |
else if (lscp_parser_test(&tok, "AVAILABLE_AUDIO_OUTPUT_DRIVERS")) { |
| 121 |
// Getting all available audio output driver count. |
| 122 |
// GET AVAILABLE_AUDIO_OUTPUT_DRIVERS |
| 123 |
pszResult = "2\r\n"; |
| 124 |
} |
| 125 |
else if (lscp_parser_test(&tok, "AVAILABLE_MIDI_INPUT_DRIVERS")) { |
| 126 |
// Getting all available MIDI input driver count. |
| 127 |
// GET AVAILABLE_MIDI_INPUT_DRIVERS |
| 128 |
pszResult = "1\r\n"; |
| 129 |
} |
| 130 |
else if (lscp_parser_test2(&tok, "AUDIO_OUTPUT_DRIVER", "INFO")) { |
| 131 |
// Getting informations about a specific audio output driver. |
| 132 |
// GET AUDIO_OUTPUT_DRIVER INFO <audio-output-type> |
| 133 |
if (lscp_parser_test(&tok, "Alsa")) { |
| 134 |
pszResult = "DESCRIPTION: 'ALSA PCM'\r\n" |
| 135 |
"VERSION: '1.0'\r\n" |
| 136 |
"PARAMETERS: channels,samplerate,active\r\n"; |
| 137 |
} |
| 138 |
else if (lscp_parser_test(&tok, "Jack")) { |
| 139 |
pszResult = "DESCRIPTION: JACK Audio Connection Kit\r\n" |
| 140 |
"VERSION: 0.98.1\r\n" |
| 141 |
"PARAMETERS: channels,samplerate,active\r\n"; |
| 142 |
} |
| 143 |
else ret = LSCP_FAILED; |
| 144 |
} |
| 145 |
else if (lscp_parser_test2(&tok, "MIDI_INPUT_DRIVER", "INFO")) { |
| 146 |
// Getting informations about a specific MIDI input driver. |
| 147 |
// GET MIDI_INPUT_DRIVER INFO <midi-input-type> |
| 148 |
if (lscp_parser_test(&tok, "Alsa")) { |
| 149 |
pszResult = "DESCRIPTION: ALSA Sequencer\r\n" |
| 150 |
"VERSION: 1.0\r\n" |
| 151 |
"PARAMETERS: ports,active\r\n"; |
| 152 |
} |
| 153 |
else ret = LSCP_FAILED; |
| 154 |
} |
| 155 |
else if (lscp_parser_test2(&tok, "AUDIO_OUTPUT_DRIVER_PARAMETER", "INFO")) { |
| 156 |
// Getting informations about a specific audio output driver parameter. |
| 157 |
// GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO <audio-output-type> <param> |
| 158 |
if (lscp_parser_test(&tok, "Alsa")) { |
| 159 |
if (lscp_parser_test(&tok, "active")) { |
| 160 |
pszResult = "DESCRIPTION: 'ALSA PCM active state'\r\n" |
| 161 |
"TYPE: BOOL\r\n" |
| 162 |
"MANDATORY: TRUE\r\n" |
| 163 |
"FIX: TRUE\r\n" |
| 164 |
"MULTIPLICITY: FALSE\r\n" |
| 165 |
"DEPENDS: channels,samplerate,card\r\n" |
| 166 |
"DEFAULT: TRUE\r\n" |
| 167 |
"RANGE_MIN: FALSE\r\n" |
| 168 |
"RANGE_MAX: TRUE\r\n" |
| 169 |
"POSSIBILITIES: FALSE,TRUE\r\n"; |
| 170 |
} |
| 171 |
else if (lscp_parser_test(&tok, "channels")) { |
| 172 |
pszResult = "DESCRIPTION: 'Number of ALSA PCM channels'\r\n" |
| 173 |
"TYPE: INT\r\n" |
| 174 |
"MANDATORY: TRUE\r\n" |
| 175 |
"FIX: TRUE\r\n" |
| 176 |
"MULTIPLICITY: FALSE\r\n" |
| 177 |
"DEFAULT: 2\r\n"; |
| 178 |
} |
| 179 |
else if (lscp_parser_test(&tok, "samplerate")) { |
| 180 |
pszResult = "DESCRIPTION: 'ALSA PCM sample rate'\r\n" |
| 181 |
"TYPE: INT\r\n" |
| 182 |
"MANDATORY: TRUE\r\n" |
| 183 |
"FIX: TRUE\r\n" |
| 184 |
"MULTIPLICITY: TRUE\r\n" |
| 185 |
"DEFAULT: 44100\r\n" |
| 186 |
"POSSIBILITIES: 44100,48000,96000\r\n"; |
| 187 |
} |
| 188 |
else ret = LSCP_FAILED; |
| 189 |
} |
| 190 |
else if (lscp_parser_test(&tok, "Jack")) { |
| 191 |
if (lscp_parser_test(&tok, "active")) { |
| 192 |
pszResult = "DESCRIPTION: 'JACK active state'\r\n" |
| 193 |
"TYPE: BOOL\r\n" |
| 194 |
"MANDATORY: TRUE\r\n" |
| 195 |
"FIX: TRUE\r\n" |
| 196 |
"MULTIPLICITY: FALSE\r\n" |
| 197 |
"DEPENDS: channels,samplerate\r\n" |
| 198 |
"DEFAULT: TRUE\r\n" |
| 199 |
"RANGE_MIN: FALSE\r\n" |
| 200 |
"RANGE_MAX: TRUE\r\n" |
| 201 |
"POSSIBILITIES: FALSE,TRUE\r\n"; |
| 202 |
} |
| 203 |
else if (lscp_parser_test(&tok, "channels")) { |
| 204 |
pszResult = "DESCRIPTION: 'Number of JACK audio channels'\r\n" |
| 205 |
"TYPE: INT\r\n" |
| 206 |
"MANDATORY: TRUE\r\n" |
| 207 |
"FIX: TRUE\r\n" |
| 208 |
"MULTIPLICITY: FALSE\r\n" |
| 209 |
"DEFAULT: 2\r\n"; |
| 210 |
} |
| 211 |
else if (lscp_parser_test(&tok, "samplerate")) { |
| 212 |
pszResult = "DESCRIPTION: 'JACK sample rate'\r\n" |
| 213 |
"TYPE: INT\r\n" |
| 214 |
"MANDATORY: TRUE\r\n" |
| 215 |
"FIX: TRUE\r\n" |
| 216 |
"MULTIPLICITY: TRUE\r\n" |
| 217 |
"DEFAULT: 44100\r\n" |
| 218 |
"POSSIBILITIES: 44100,48000,96000\r\n"; |
| 219 |
} |
| 220 |
else ret = LSCP_FAILED; |
| 221 |
} |
| 222 |
else ret = LSCP_FAILED; |
| 223 |
} |
| 224 |
else if (lscp_parser_test2(&tok, "MIDI_INPUT_DRIVER_PARAMETER", "INFO")) { |
| 225 |
// Getting informations about a specific MIDI input driver parameter. |
| 226 |
// GET MIDI_INPUT_DRIVER_PARAMETER INFO <midi-input-type> <param> |
| 227 |
if (lscp_parser_test(&tok, "Alsa")) { |
| 228 |
if (lscp_parser_test(&tok, "active")) { |
| 229 |
pszResult = "DESCRIPTION: 'ALSA Sequencer device active state'\r\n" |
| 230 |
"TYPE: BOOL\r\n" |
| 231 |
"MANDATORY: TRUE\r\n" |
| 232 |
"FIX: TRUE\r\n" |
| 233 |
"MULTIPLICITY: FALSE\r\n" |
| 234 |
"DEPENDS: channels,ports\r\n" |
| 235 |
"DEFAULT: TRUE\r\n" |
| 236 |
"RANGE_MIN: FALSE\r\n" |
| 237 |
"RANGE_MAX: TRUE\r\n" |
| 238 |
"POSSIBILITIES: FALSE,TRUE\r\n"; |
| 239 |
} |
| 240 |
else if (lscp_parser_test(&tok, "ports")) { |
| 241 |
pszResult = "DESCRIPTION: 'Number of ALSA Sequencer ports'\r\n" |
| 242 |
"TYPE: INT\r\n" |
| 243 |
"MANDATORY: FALSE\r\n" |
| 244 |
"FIX: FALSE\r\n" |
| 245 |
"MULTIPLICITY: FALSE\r\n" |
| 246 |
"DEFAULT: 1\r\n" |
| 247 |
"RANGE_MIN: 1\r\n" |
| 248 |
"RANGE_MAX: 4\r\n"; |
| 249 |
} |
| 250 |
else ret = LSCP_FAILED; |
| 251 |
} |
| 252 |
else ret = LSCP_FAILED; |
| 253 |
} |
| 254 |
else if (lscp_parser_test2(&tok, "AUDIO_OUTPUT_DEVICE", "INFO")) { |
| 255 |
// Getting informations about a specific audio output device. |
| 256 |
// GET AUDIO_OUTPUT_DEVICE INFO <audio-device-id> |
| 257 |
if (lscp_parser_nextint(&tok) < iAudioDevice) { |
| 258 |
pszResult = "driver: Alsa\r\n" |
| 259 |
"active: TRUE\r\n" |
| 260 |
"channels: 2\r\n" |
| 261 |
"samplerate: 44100\r\n"; |
| 262 |
} |
| 263 |
else ret = LSCP_FAILED; |
| 264 |
} |
| 265 |
else if (lscp_parser_test2(&tok, "MIDI_INPUT_DEVICE", "INFO")) { |
| 266 |
// Getting informations about a specific MIDI input device. |
| 267 |
// GET MIDI_INPUT_DEVICE INFO <midi-device-id> |
| 268 |
if (lscp_parser_nextint(&tok) < iMidiDevice) { |
| 269 |
pszResult = "driver: Alsa\r\n" |
| 270 |
"active: TRUE\r\n" |
| 271 |
"channels: 16\r\n" |
| 272 |
"ports: 1\r\n"; |
| 273 |
} |
| 274 |
else ret = LSCP_FAILED; |
| 275 |
} |
| 276 |
else if (lscp_parser_test2(&tok, "AUDIO_OUTPUT_CHANNEL", "INFO")) { |
| 277 |
// Getting informations about an audio channel. |
| 278 |
// GET AUDIO_OUTPUT_CHANNEL INFO <audio-device-id> <audio-channel> |
| 279 |
if (lscp_parser_nextint(&tok) < iAudioDevice) { |
| 280 |
pszResult = "name: DummyMonitor\r\n" |
| 281 |
"is_mix_channel: FALSE\r\n" |
| 282 |
"mix_channel_destination: 0\r\n"; |
| 283 |
} |
| 284 |
else ret = LSCP_FAILED; |
| 285 |
} |
| 286 |
else if (lscp_parser_test2(&tok, "MIDI_INPUT_PORT", "INFO")) { |
| 287 |
// Getting informations about a MIDI port. |
| 288 |
// GET MIDI_INPUT_PORT INFO <midi-device-id> <midi-port> |
| 289 |
if (lscp_parser_nextint(&tok) < iMidiDevice) { |
| 290 |
pszResult = "name: DummyKeyboard\r\n" |
| 291 |
"alsa_seq_bindings: '64:0'\r\n"; |
| 292 |
} |
| 293 |
else ret = LSCP_FAILED; |
| 294 |
} |
| 295 |
else if (lscp_parser_test2(&tok, "AUDIO_OUTPUT_CHANNEL_PARAMETER", "INFO")) { |
| 296 |
// Getting informations about specific audio channel parameter. |
| 297 |
// GET AUDIO_OUTPUT_CHANNEL_PARAMETER INFO <audio-device-id> <audio-channel> <param> |
| 298 |
if (lscp_parser_nextint(&tok) < iAudioDevice) { |
| 299 |
lscp_parser_nextint(&tok); |
| 300 |
if (lscp_parser_test(&tok, "is_mix_channel")) { |
| 301 |
pszResult = "DESCRIPTION: 'Whether this is an audio mix channel'\r\n" |
| 302 |
"TYPE: BOOL\r\n" |
| 303 |
"MANDATORY: TRUE\r\n" |
| 304 |
"FIX: FALSE\r\n" |
| 305 |
"MULTIPLICITY: FALSE\r\n" |
| 306 |
"POSSIBILITIES: FALSE,TRUE\r\n"; |
| 307 |
} |
| 308 |
else if (lscp_parser_test(&tok, "mix_channel_destination")) { |
| 309 |
pszResult = "DESCRIPTION: 'Audio mix channel destination'\r\n" |
| 310 |
"TYPE: INT\r\n" |
| 311 |
"MANDATORY: TRUE\r\n" |
| 312 |
"FIX: FALSE\r\n" |
| 313 |
"MULTIPLICITY: TRUE\r\n" |
| 314 |
"POSSIBILITIES: 0,1\r\n"; |
| 315 |
} |
| 316 |
else ret = LSCP_FAILED; |
| 317 |
} |
| 318 |
else ret = LSCP_FAILED; |
| 319 |
} |
| 320 |
else if (lscp_parser_test2(&tok, "MIDI_INPUT_PORT_PARAMETER", "INFO")) { |
| 321 |
// Getting informations about specific MIDI port parameter. |
| 322 |
// GET MIDI_INPUT_PORT_PARAMETER INFO <midi-device-id> <midi-port> <param> |
| 323 |
if (lscp_parser_nextint(&tok) < iMidiDevice) { |
| 324 |
lscp_parser_nextint(&tok); |
| 325 |
if (lscp_parser_test(&tok, "alsa_seq_bindings")) { |
| 326 |
pszResult = "DESCRIPTION: 'Alsa sequencer port bindings'\r\n" |
| 327 |
"TYPE: STRING\r\n" |
| 328 |
"MANDATORY: TRUE\r\n" |
| 329 |
"FIX: FALSE\r\n" |
| 330 |
"MULTIPLICITY: TRUE\r\n" |
| 331 |
"POSSIBILITIES: '64:0','68:0','68:1'\r\n"; |
| 332 |
} |
| 333 |
else ret = LSCP_FAILED; |
| 334 |
} |
| 335 |
else ret = LSCP_FAILED; |
| 336 |
} |
| 337 |
else if (lscp_parser_test(&tok, "AUDIO_OUTPUT_DEVICES")) { |
| 338 |
// Getting all created audio output device count. |
| 339 |
// GET AUDIO_OUTPUT_DEVICES |
| 340 |
sprintf(szTemp, "%d\r\n", iAudioDevice); |
| 341 |
pszResult = szTemp; |
| 342 |
} |
| 343 |
else if (lscp_parser_test(&tok, "MIDI_INPUT_DEVICES")) { |
| 344 |
// Getting all created MID input device count. |
| 345 |
// GET MIDI_INPUT_DEVICES |
| 346 |
sprintf(szTemp, "%d\r\n", iMidiDevice); |
| 347 |
pszResult = szTemp; |
| 348 |
} |
| 349 |
else if (lscp_parser_test(&tok, "AVAILABLE_ENGINES")) { |
| 350 |
// Getting all available engine count: |
| 351 |
// GET AVAILABLE_ENGINES |
| 352 |
pszResult = "3\r\n"; |
| 353 |
} |
| 354 |
else if (lscp_parser_test2(&tok, "SERVER", "INFO")) { |
| 355 |
// Getting information about the server. |
| 356 |
// GET SERVER INFO |
| 357 |
sprintf(szTemp, "DESCRIPTION: example_server (%s) %s\r\n" |
| 358 |
"VERSION: %s\r\n", lscp_server_package(), |
| 359 |
lscp_server_build(), lscp_server_version()); |
| 360 |
pszResult = szTemp; |
| 361 |
} |
| 362 |
else if (lscp_parser_test2(&tok, "ENGINE", "INFO")) { |
| 363 |
// Getting information about an engine. |
| 364 |
// GET ENGINE INFO <engine-name> |
| 365 |
if (lscp_parser_test(&tok, "GigEngine")) { |
| 366 |
pszResult = "DESCRIPTION: GigaSampler Engine\r\n" |
| 367 |
"VERSION: 0.3\r\n"; |
| 368 |
} |
| 369 |
else if (lscp_parser_test(&tok, "DLSEngine")) { |
| 370 |
pszResult = "DESCRIPTION: 'DLS Generic Engine'\r\n" |
| 371 |
"VERSION: 0.2\r\n"; |
| 372 |
} |
| 373 |
else if (lscp_parser_test(&tok, "AkaiEngine")) { |
| 374 |
pszResult = "DESCRIPTION: Akai Sampler Engine\r\n" |
| 375 |
"VERSION: 0.1\r\n"; |
| 376 |
} |
| 377 |
else ret = LSCP_FAILED; |
| 378 |
} |
| 379 |
else ret = LSCP_FAILED; |
| 380 |
} |
| 381 |
else if (lscp_parser_test(&tok, "LIST")) { |
| 382 |
if (lscp_parser_test(&tok, "CHANNELS")) { |
| 383 |
// Getting all created sampler channel list. |
| 384 |
// LIST CHANNELS |
| 385 |
if (iSamplerChannel > 0) { |
| 386 |
strcpy(szTemp, "0"); |
| 387 |
for (i = 1; i < iSamplerChannel && strlen(szTemp) < sizeof(szTemp) - 8; i++) |
| 388 |
sprintf(szTemp + strlen(szTemp), ",%d", i); |
| 389 |
strcat(szTemp, "\r\n"); |
| 390 |
pszResult = szTemp; |
| 391 |
} |
| 392 |
else ret = LSCP_FAILED; |
| 393 |
} |
| 394 |
else if (lscp_parser_test(&tok, "AVAILABLE_ENGINES")) { |
| 395 |
// Getting all available engines: |
| 396 |
// LIST AVAILABLE_ENGINES |
| 397 |
pszResult = "GigEngine,DLSEngine,AkaiEngine\r\n"; |
| 398 |
} |
| 399 |
else if (lscp_parser_test(&tok, "AVAILABLE_AUDIO_OUTPUT_DRIVERS")) { |
| 400 |
// Getting all available audio output drivers. |
| 401 |
// LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS |
| 402 |
pszResult = "ALSA,JACK\r\n"; |
| 403 |
} |
| 404 |
else if (lscp_parser_test(&tok, "AVAILABLE_MIDI_INPUT_DRIVERS")) { |
| 405 |
// Getting all available MIDI input drivers. |
| 406 |
// LIST AVAILABLE_MIDI_INPUT_DRIVERS |
| 407 |
pszResult = "ALSA\r\n"; |
| 408 |
} |
| 409 |
else if (lscp_parser_test(&tok, "AUDIO_OUTPUT_DEVICES")) { |
| 410 |
// Getting all created audio output device list. |
| 411 |
// LIST AUDIO_OUTPUT_DEVICES |
| 412 |
if (iAudioDevice > 0) { |
| 413 |
strcpy(szTemp, "0"); |
| 414 |
for (i = 1; i < iAudioDevice && strlen(szTemp) < sizeof(szTemp) - 8; i++) |
| 415 |
sprintf(szTemp + strlen(szTemp), ",%d", i); |
| 416 |
strcat(szTemp, "\r\n"); |
| 417 |
pszResult = szTemp; |
| 418 |
} |
| 419 |
else ret = LSCP_FAILED; |
| 420 |
} |
| 421 |
else if (lscp_parser_test(&tok, "MIDI_INPUT_DEVICES")) { |
| 422 |
// Getting all created MID input device list. |
| 423 |
// LIST MIDI_INPUT_DEVICES |
| 424 |
if (iMidiDevice > 0) { |
| 425 |
strcpy(szTemp, "0"); |
| 426 |
for (i = 1; i < iMidiDevice && strlen(szTemp) < sizeof(szTemp) - 8; i++) |
| 427 |
sprintf(szTemp + strlen(szTemp), ",%d", i); |
| 428 |
strcat(szTemp, "\r\n"); |
| 429 |
pszResult = szTemp; |
| 430 |
} |
| 431 |
else ret = LSCP_FAILED; |
| 432 |
} |
| 433 |
else ret = LSCP_FAILED; |
| 434 |
} |
| 435 |
else if (lscp_parser_test(&tok, "SET")) { |
| 436 |
if (lscp_parser_test(&tok, "CHANNEL")) { |
| 437 |
if (lscp_parser_test(&tok, "VOLUME")) { |
| 438 |
// Setting channel volume: |
| 439 |
// SET CHANNEL VOLUME <sampler-channel> <volume> |
| 440 |
} |
| 441 |
else if (lscp_parser_test(&tok, "MUTE")) { |
| 442 |
// Muting a sampler channel: |
| 443 |
// SET CHANNEL MUTE <sampler-channel> <mute> |
| 444 |
} |
| 445 |
else if (lscp_parser_test(&tok, "SOLO")) { |
| 446 |
// Soloing a sampler channel: |
| 447 |
// SET CHANNEL SOLO <sampler-channel> <solo> |
| 448 |
} |
| 449 |
else if (lscp_parser_test(&tok, "AUDIO_OUTPUT_TYPE")) { |
| 450 |
// Setting audio output type: |
| 451 |
// SET CHANNEL AUDIO_OUTPUT_TYPE <sampler-channel> <audio-output-type> |
| 452 |
} |
| 453 |
else if (lscp_parser_test(&tok, "AUDIO_OUTPUT_DEVICE")) { |
| 454 |
// Setting audio output device: |
| 455 |
// SET CHANNEL AUDIO_OUTPUT_DEVICE <sampler-channel> <device-id> |
| 456 |
} |
| 457 |
else if (lscp_parser_test(&tok, "AUDIO_OUTPUT_CHANNEL")) { |
| 458 |
// Setting audio output channel: |
| 459 |
// SET CHANNEL AUDIO_OUTPUT_CHANNEL <sampler-channel> <audio-in> <audio-out> |
| 460 |
} |
| 461 |
else if (lscp_parser_test(&tok, "MIDI_INPUT_TYPE")) { |
| 462 |
// Setting MIDI input type: |
| 463 |
// SET CHANNEL MIDI_INPUT_TYPE <sampler-channel> <midi-input-type> |
| 464 |
} |
| 465 |
else if (lscp_parser_test(&tok, "MIDI_INPUT_DEVICE")) { |
| 466 |
// Setting MIDI input device: |
| 467 |
// SET CHANNEL MIDI_INPUT_DEVICE <sampler-channel> <device-id> |
| 468 |
} |
| 469 |
else if (lscp_parser_test(&tok, "MIDI_INPUT_PORT")) { |
| 470 |
// Setting MIDI input port: |
| 471 |
// SET CHANNEL MIDI_INPUT_PORT <sampler-channel> <midi-input-port> |
| 472 |
} |
| 473 |
else if (lscp_parser_test(&tok, "MIDI_INPUT_CHANNEL")) { |
| 474 |
// Setting MIDI input channel: |
| 475 |
// SET CHANNEL MIDI_INPUT_CHANNEL <sampler-channel> <midi-input-chan> |
| 476 |
} |
| 477 |
else ret = LSCP_FAILED; |
| 478 |
} |
| 479 |
else ret = LSCP_FAILED; |
| 480 |
} |
| 481 |
else if (lscp_parser_test(&tok, "LOAD")) { |
| 482 |
if (lscp_parser_test(&tok, "ENGINE")) { |
| 483 |
// Loading a sampler engine: |
| 484 |
// LOAD ENGINE <engine-name> <sampler-channel> |
| 485 |
} |
| 486 |
else if (lscp_parser_test(&tok, "INSTRUMENT")) { |
| 487 |
// Loading an instrument: |
| 488 |
// LOAD INSTRUMENT [NON_MODAL] <filename> <instr-index> <sampler-channel> |
| 489 |
} |
| 490 |
else ret = LSCP_FAILED; |
| 491 |
} |
| 492 |
else if (lscp_parser_test2(&tok, "ADD", "CHANNEL")) { |
| 493 |
// Adding a new sampler channel: |
| 494 |
// ADD CHANNEL |
| 495 |
if (iSamplerChannel < 16) { |
| 496 |
sprintf(szTemp, "OK[%d]", iSamplerChannel++); |
| 497 |
pszResult = szTemp; |
| 498 |
} else { |
| 499 |
iSamplerChannel = 0; |
| 500 |
ret = LSCP_FAILED; |
| 501 |
} |
| 502 |
} |
| 503 |
else if (lscp_parser_test2(&tok, "REMOVE", "CHANNEL")) { |
| 504 |
// Removing a sampler channel: |
| 505 |
// REMOVE CHANNEL <sampler-channel> |
| 506 |
if (lscp_parser_nextint(&tok) < iSamplerChannel) |
| 507 |
iSamplerChannel--; |
| 508 |
else |
| 509 |
ret = LSCP_FAILED; |
| 510 |
} |
| 511 |
else if (lscp_parser_test(&tok, "RESET")) { |
| 512 |
if (lscp_parser_test(&tok, "CHANNEL")) { |
| 513 |
// Resetting a sampler channel: |
| 514 |
// RESET CHANNEL <sampler-channel> |
| 515 |
if (lscp_parser_nextint(&tok) > iSamplerChannel) |
| 516 |
ret = LSCP_FAILED; |
| 517 |
} else { |
| 518 |
// Reset sampler: |
| 519 |
// RESET |
| 520 |
iSamplerChannel = 0; |
| 521 |
iAudioDevice = 0; |
| 522 |
iMidiDevice = 0; |
| 523 |
} |
| 524 |
} |
| 525 |
else if (lscp_parser_test(&tok, "CREATE")) { |
| 526 |
if (lscp_parser_test(&tok, "AUDIO_OUTPUT_DEVICE")) { |
| 527 |
// Creating an audio output device. |
| 528 |
// CREATE AUDIO_OUTPUT_DEVICE <audio-output-driver> [<params>] |
| 529 |
if (iAudioDevice < 8) { |
| 530 |
sprintf(szTemp, "OK[%d]", iAudioDevice++); |
| 531 |
pszResult = szTemp; |
| 532 |
} else { |
| 533 |
iAudioDevice = 0; |
| 534 |
ret = LSCP_FAILED; |
| 535 |
} |
| 536 |
} |
| 537 |
else if (lscp_parser_test(&tok, "MIDI_INPUT_DEVICE")) { |
| 538 |
// Creating an MIDI input device. |
| 539 |
// CREATE MIDI_INPUT_DEVICE <midi-input-driver> [<params>] |
| 540 |
if (iMidiDevice < 8) { |
| 541 |
sprintf(szTemp, "OK[%d]", iMidiDevice++); |
| 542 |
pszResult = szTemp; |
| 543 |
} else { |
| 544 |
iMidiDevice = 0; |
| 545 |
ret = LSCP_FAILED; |
| 546 |
} |
| 547 |
} |
| 548 |
else ret = LSCP_FAILED; |
| 549 |
} |
| 550 |
else if (lscp_parser_test(&tok, "DESTROY")) { |
| 551 |
if (lscp_parser_test(&tok, "AUDIO_OUTPUT_DEVICE")) { |
| 552 |
// Destroying an audio output device. |
| 553 |
// DESTROY AUDIO_OUTPUT_DEVICE <audio-device-id> |
| 554 |
if (lscp_parser_nextint(&tok) < iAudioDevice) |
| 555 |
iAudioDevice--; |
| 556 |
else |
| 557 |
ret = LSCP_FAILED; |
| 558 |
} |
| 559 |
else if (lscp_parser_test(&tok, "MIDI_INPUT_DEVICE")) { |
| 560 |
// Destroying an MIDI intput device. |
| 561 |
// DESTROY MIDI_INPUT_DEVICE <midi-device-id> |
| 562 |
if (lscp_parser_nextint(&tok) < iMidiDevice) |
| 563 |
iMidiDevice--; |
| 564 |
else |
| 565 |
ret = LSCP_FAILED; |
| 566 |
} |
| 567 |
else ret = LSCP_FAILED; |
| 568 |
} |
| 569 |
else if (lscp_parser_test(&tok, "SUBSCRIBE")) { |
| 570 |
// Register frontend for receiving event notification messages: |
| 571 |
// SUBSCRIBE <event> |
| 572 |
ret = lscp_server_subscribe(pConnect, lscp_event_from_text(lscp_parser_next(&tok))); |
| 573 |
} |
| 574 |
else if (lscp_parser_test(&tok, "UNSUBSCRIBE")) { |
| 575 |
// Deregister frontend for not receiving event notification messages anymore: |
| 576 |
// UNSUBSCRIBE <event> |
| 577 |
ret = lscp_server_unsubscribe(pConnect, lscp_event_from_text(lscp_parser_next(&tok))); |
| 578 |
} |
| 579 |
else if (lscp_parser_test(&tok, "QUIT")) { |
| 580 |
// Close client connection: |
| 581 |
// QUIT |
| 582 |
lscp_parser_free(&tok); |
| 583 |
return LSCP_FAILED; // Disconnect. |
| 584 |
} |
| 585 |
else ret = LSCP_FAILED; |
| 586 |
|
| 587 |
lscp_parser_free(&tok); |
| 588 |
|
| 589 |
if (pszResult == NULL) |
| 590 |
pszResult = (ret == LSCP_OK ? "OK\r\n" : "ERR:1:Failed\r\n"); |
| 591 |
|
| 592 |
fprintf(stderr, "> %s", pszResult); |
| 593 |
|
| 594 |
return lscp_server_result(pConnect, pszResult, strlen(pszResult)); |
| 595 |
} |
| 596 |
|
| 597 |
//////////////////////////////////////////////////////////////////////// |
| 598 |
|
| 599 |
|
| 600 |
void server_usage (void) |
| 601 |
{ |
| 602 |
printf("\n %s %s (Build: %s)\n", lscp_server_package(), lscp_server_version(), lscp_server_build()); |
| 603 |
|
| 604 |
fputs("\n Available server commands: help, exit, quit, list", stdout); |
| 605 |
fputs("\n (all else are broadcast verbatim to subscribers)\n\n", stdout); |
| 606 |
} |
| 607 |
|
| 608 |
void server_prompt (void) |
| 609 |
{ |
| 610 |
fputs("lscp_server> ", stdout); |
| 611 |
} |
| 612 |
|
| 613 |
int main (int argc, char *argv[] ) |
| 614 |
{ |
| 615 |
lscp_server_t *pServer; |
| 616 |
char szLine[200]; |
| 617 |
int cchLine; |
| 618 |
lscp_connect_t *p; |
| 619 |
|
| 620 |
#if defined(WIN32) |
| 621 |
if (WSAStartup(MAKEWORD(1, 1), &_wsaData) != 0) { |
| 622 |
fprintf(stderr, "lscp_server: WSAStartup failed.\n"); |
| 623 |
return -1; |
| 624 |
} |
| 625 |
#endif |
| 626 |
|
| 627 |
srand(time(NULL)); |
| 628 |
|
| 629 |
pServer = lscp_server_create(SERVER_PORT, server_callback, NULL); |
| 630 |
if (pServer == NULL) |
| 631 |
return -1; |
| 632 |
|
| 633 |
server_usage(); |
| 634 |
server_prompt(); |
| 635 |
|
| 636 |
while (fgets(szLine, sizeof(szLine), stdin)) { |
| 637 |
|
| 638 |
cchLine = strlen(szLine); |
| 639 |
while (cchLine > 0 && (szLine[cchLine - 1] == '\n' || szLine[cchLine - 1] == '\r')) |
| 640 |
cchLine--; |
| 641 |
szLine[cchLine] = '\0'; |
| 642 |
|
| 643 |
if (strcmp(szLine, "exit") == 0 || strcmp(szLine, "quit") == 0) |
| 644 |
break; |
| 645 |
else |
| 646 |
if (strcmp(szLine, "list") == 0) { |
| 647 |
for (p = pServer->connects.first; p; p = p->next) { |
| 648 |
printf("client: sock=%d addr=%s port=%d events=0x%04x.\n", |
| 649 |
p->client.sock, |
| 650 |
inet_ntoa(p->client.addr.sin_addr), |
| 651 |
ntohs(p->client.addr.sin_port), |
| 652 |
(int) p->events |
| 653 |
); |
| 654 |
} |
| 655 |
} |
| 656 |
else |
| 657 |
if (cchLine > 0 && strcmp(szLine, "help") != 0) |
| 658 |
lscp_server_broadcast(pServer, LSCP_EVENT_MISCELLANEOUS, szLine, strlen(szLine)); |
| 659 |
else |
| 660 |
server_usage(); |
| 661 |
|
| 662 |
server_prompt(); |
| 663 |
} |
| 664 |
|
| 665 |
lscp_server_destroy(pServer); |
| 666 |
|
| 667 |
#if defined(WIN32) |
| 668 |
WSACleanup(); |
| 669 |
#endif |
| 670 |
|
| 671 |
return 0; |
| 672 |
} |
| 673 |
|
| 674 |
// end of example_server.c |
Parent Directory
| 
Revision Log