code.delx.au - pulseaudio/blob - polyp/polyplib-introspect.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of polypaudio.
   5
   6   polypaudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published
   8   by the Free Software Foundation; either version 2 of the License,
   9   or (at your option) any later version.
  10
  11   polypaudio is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with polypaudio; if not, write to the Free Software
  18   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  19   USA.
  20 ***/
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <assert.h>
  27
  28 #include "polyplib-introspect.h"
  29 #include "polyplib-context.h"
  30 #include "polyplib-internal.h"
  31 #include "pstream-util.h"
  32
  33 /*** Statistics ***/
  34
  35 static void context_stat_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
  36     struct pa_operation *o = userdata;
  37     struct pa_stat_info i, *p = &i;
  38     assert(pd && o && o->context && o->ref >= 1);
  39
  40     if (command != PA_COMMAND_REPLY) {
  41         if (pa_context_handle_error(o->context, command, t) < 0)
  42             goto finish;
  43
  44         p = NULL;
  45     } else if (pa_tagstruct_getu32(t, &i.memblock_count) < 0 ||
  46                pa_tagstruct_getu32(t, &i.memblock_total) < 0 ||
  47                !pa_tagstruct_eof(t)) {
  48         pa_context_fail(o->context, PA_ERROR_PROTOCOL);
  49         goto finish;
  50     }
  51
  52     if (o->callback) {
  53         void (*cb)(struct pa_context *s, const struct pa_stat_info*i, void *userdata) = o->callback;
  54         cb(o->context, p, o->userdata);
  55     }
  56
  57 finish:
  58     pa_operation_done(o);
  59     pa_operation_unref(o);
  60 }
  61
  62 struct pa_operation* pa_context_stat(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_stat_info*i, void *userdata), void *userdata) {
  63     return pa_context_send_simple_command(c, PA_COMMAND_STAT, context_stat_callback, cb, userdata);
  64 }
  65
  66 /*** Server Info ***/
  67
  68 static void context_get_server_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
  69     struct pa_operation *o = userdata;
  70     struct pa_server_info i, *p = &i;
  71     assert(pd && o && o->context && o->ref >= 1);
  72
  73     if (command != PA_COMMAND_REPLY) {
  74         if (pa_context_handle_error(o->context, command, t) < 0)
  75             goto finish;
  76
  77         p = NULL;
  78     } else if (pa_tagstruct_gets(t, &i.server_name) < 0 ||
  79                pa_tagstruct_gets(t, &i.server_version) < 0 ||
  80                pa_tagstruct_gets(t, &i.user_name) < 0 ||
  81                pa_tagstruct_gets(t, &i.host_name) < 0 ||
  82                pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 ||
  83                !pa_tagstruct_eof(t)) {
  84         pa_context_fail(o->context, PA_ERROR_PROTOCOL);
  85         goto finish;
  86     }
  87
  88     if (o->callback) {
  89         void (*cb)(struct pa_context *s, const struct pa_server_info*i, void *userdata) = o->callback;
  90         cb(o->context, p, o->userdata);
  91     }
  92
  93 finish:
  94     pa_operation_done(o);
  95     pa_operation_unref(o);
  96 }
  97
  98 struct pa_operation* pa_context_get_server_info(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_server_info*i, void *userdata), void *userdata) {
  99     return pa_context_send_simple_command(c, PA_COMMAND_GET_SERVER_INFO, context_get_server_info_callback, cb, userdata);
 100 }
 101
 102 /*** Sink Info ***/
 103
 104 static void context_get_sink_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 105     struct pa_operation *o = userdata;
 106     int eof = 1;
 107     assert(pd && o && o->context && o->ref >= 1);
 108
 109     if (command != PA_COMMAND_REPLY) {
 110         if (pa_context_handle_error(o->context, command, t) < 0)
 111             goto finish;
 112
 113         eof = -1;
 114     } else {
 115
 116         while (!pa_tagstruct_eof(t)) {
 117             struct pa_sink_info i;
 118
 119             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 120                 pa_tagstruct_gets(t, &i.name) < 0 ||
 121                 pa_tagstruct_gets(t, &i.description) < 0 ||
 122                 pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 ||
 123                 pa_tagstruct_getu32(t, &i.owner_module) < 0 ||
 124                 pa_tagstruct_getu32(t, &i.volume) < 0 ||
 125                 pa_tagstruct_getu32(t, &i.monitor_source) < 0 ||
 126                 pa_tagstruct_gets(t, &i.monitor_source_name) < 0 ||
 127                 pa_tagstruct_getu32(t, &i.latency) < 0) {
 128                 pa_context_fail(o->context, PA_ERROR_PROTOCOL);
 129                 goto finish;
 130             }
 131
 132             if (o->callback) {
 133                 void (*cb)(struct pa_context *s, const struct pa_sink_info*i, int eof, void *userdata) = o->callback;
 134                 cb(o->context, &i, 0, o->userdata);
 135             }
 136         }
 137     }
 138
 139     if (o->callback) {
 140         void (*cb)(struct pa_context *s, const struct pa_sink_info*i, int eof, void *userdata) = o->callback;
 141         cb(o->context, NULL, eof, o->userdata);
 142     }
 143
 144 finish:
 145     pa_operation_done(o);
 146     pa_operation_unref(o);
 147 }
 148
 149 struct pa_operation* pa_context_get_sink_info_list(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_sink_info *i, int is_last, void *userdata), void *userdata) {
 150     return pa_context_send_simple_command(c, PA_COMMAND_GET_SINK_INFO_LIST, context_get_sink_info_callback, cb, userdata);
 151 }
 152
 153 struct pa_operation* pa_context_get_sink_info_by_index(struct pa_context *c, uint32_t index, void (*cb)(struct pa_context *c, const struct pa_sink_info *i, int is_last, void *userdata), void *userdata) {
 154     struct pa_tagstruct *t;
 155     struct pa_operation *o;
 156     uint32_t tag;
 157     assert(c && cb);
 158
 159     o = pa_operation_new(c, NULL);
 160     o->callback = cb;
 161     o->userdata = userdata;
 162
 163     t = pa_tagstruct_new(NULL, 0);
 164     pa_tagstruct_putu32(t, PA_COMMAND_GET_SINK_INFO);
 165     pa_tagstruct_putu32(t, tag = c->ctag++);
 166     pa_tagstruct_putu32(t, index);
 167     pa_tagstruct_puts(t, "");
 168     pa_pstream_send_tagstruct(c->pstream, t);
 169     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_sink_info_callback, o);
 170
 171     return pa_operation_ref(o);
 172 }
 173
 174 /*** Source info ***/
 175
 176 static void context_get_source_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 177     struct pa_operation *o = userdata;
 178     int eof = 1;
 179     assert(pd && o && o->context && o->ref >= 1);
 180
 181     if (command != PA_COMMAND_REPLY) {
 182         if (pa_context_handle_error(o->context, command, t) < 0)
 183             goto finish;
 184
 185         eof = -1;
 186     } else {
 187
 188         while (!pa_tagstruct_eof(t)) {
 189             struct pa_source_info i;
 190
 191             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 192                 pa_tagstruct_gets(t, &i.name) < 0 ||
 193                 pa_tagstruct_gets(t, &i.description) < 0 ||
 194                 pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 ||
 195                 pa_tagstruct_getu32(t, &i.owner_module) < 0 ||
 196                 pa_tagstruct_getu32(t, &i.monitor_of_sink) < 0 ||
 197                 pa_tagstruct_gets(t, &i.monitor_of_sink_name) < 0) {
 198                 pa_context_fail(o->context, PA_ERROR_PROTOCOL);
 199                 goto finish;
 200             }
 201
 202             if (o->callback) {
 203                 void (*cb)(struct pa_context *s, const struct pa_source_info*i, int eof, void *userdata) = o->callback;
 204                 cb(o->context, &i, 0, o->userdata);
 205             }
 206         }
 207     }
 208
 209     if (o->callback) {
 210         void (*cb)(struct pa_context *s, const struct pa_source_info*i, int eof, void *userdata) = o->callback;
 211         cb(o->context, NULL, eof, o->userdata);
 212     }
 213
 214 finish:
 215     pa_operation_done(o);
 216     pa_operation_unref(o);
 217 }
 218
 219 struct pa_operation* pa_context_get_source_info_list(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_source_info *i, int is_last, void *userdata), void *userdata) {
 220     return pa_context_send_simple_command(c, PA_COMMAND_GET_SOURCE_INFO_LIST, context_get_source_info_callback, cb, userdata);
 221 }
 222
 223 struct pa_operation* pa_context_get_source_info_by_index(struct pa_context *c, uint32_t index, void (*cb)(struct pa_context *c, const struct pa_source_info *i, int is_last, void *userdata), void *userdata) {
 224     struct pa_tagstruct *t;
 225     struct pa_operation *o;
 226     uint32_t tag;
 227     assert(c && cb);
 228
 229     o = pa_operation_new(c, NULL);
 230     o->callback = cb;
 231     o->userdata = userdata;
 232
 233     t = pa_tagstruct_new(NULL, 0);
 234     pa_tagstruct_putu32(t, PA_COMMAND_GET_SOURCE_INFO);
 235     pa_tagstruct_putu32(t, tag = c->ctag++);
 236     pa_tagstruct_putu32(t, index);
 237     pa_tagstruct_puts(t, "");
 238     pa_pstream_send_tagstruct(c->pstream, t);
 239     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_source_info_callback, o);
 240
 241     return pa_operation_ref(o);
 242 }
 243
 244 /*** Client info ***/
 245
 246 static void context_get_client_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 247     struct pa_operation *o = userdata;
 248     int eof = 1;
 249     assert(pd && o && o->context && o->ref >= 1);
 250
 251     if (command != PA_COMMAND_REPLY) {
 252         if (pa_context_handle_error(o->context, command, t) < 0)
 253             goto finish;
 254
 255         eof = -1;
 256     } else {
 257
 258         while (!pa_tagstruct_eof(t)) {
 259             struct pa_client_info i;
 260
 261             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 262                 pa_tagstruct_gets(t, &i.name) < 0 ||
 263                 pa_tagstruct_gets(t, &i.protocol_name) < 0 ||
 264                 pa_tagstruct_getu32(t, &i.owner_module) < 0) {
 265                 pa_context_fail(o->context, PA_ERROR_PROTOCOL);
 266                 goto finish;
 267             }
 268
 269             if (o->callback) {
 270                 void (*cb)(struct pa_context *s, const struct pa_client_info*i, int eof, void *userdata) = o->callback;
 271                 cb(o->context, &i, 0, o->userdata);
 272             }
 273         }
 274     }
 275
 276     if (o->callback) {
 277         void (*cb)(struct pa_context *s, const struct pa_client_info*i, int eof, void *userdata) = o->callback;
 278         cb(o->context, NULL, eof, o->userdata);
 279     }
 280
 281 finish:
 282     pa_operation_done(o);
 283     pa_operation_unref(o);
 284 }
 285
 286 struct pa_operation* pa_context_get_client_info(struct pa_context *c, uint32_t index, void (*cb)(struct pa_context *c, const struct pa_client_info*i, int is_last, void *userdata), void *userdata) {
 287     struct pa_tagstruct *t;
 288     struct pa_operation *o;
 289     uint32_t tag;
 290     assert(c && cb);
 291
 292     o = pa_operation_new(c, NULL);
 293     o->callback = cb;
 294     o->userdata = userdata;
 295
 296     t = pa_tagstruct_new(NULL, 0);
 297     pa_tagstruct_putu32(t, PA_COMMAND_GET_CLIENT_INFO);
 298     pa_tagstruct_putu32(t, tag = c->ctag++);
 299     pa_tagstruct_putu32(t, index);
 300     pa_pstream_send_tagstruct(c->pstream, t);
 301     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_client_info_callback, o);
 302
 303     return pa_operation_ref(o);
 304 }
 305
 306 struct pa_operation* pa_context_get_client_info_list(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_client_info*i, int is_last, void *userdata), void *userdata) {
 307     return pa_context_send_simple_command(c, PA_COMMAND_GET_CLIENT_INFO_LIST, context_get_client_info_callback, cb, userdata);
 308 }
 309
 310 /*** Module info ***/
 311
 312 static void context_get_module_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 313     struct pa_operation *o = userdata;
 314     int eof = 1;
 315     assert(pd && o && o->context && o->ref >= 1);
 316
 317     if (command != PA_COMMAND_REPLY) {
 318         if (pa_context_handle_error(o->context, command, t) < 0)
 319             goto finish;
 320
 321         eof = -1;
 322     } else {
 323
 324         while (!pa_tagstruct_eof(t)) {
 325             struct pa_module_info i;
 326
 327             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 328                 pa_tagstruct_gets(t, &i.name) < 0 ||
 329                 pa_tagstruct_gets(t, &i.argument) < 0 ||
 330                 pa_tagstruct_getu32(t, &i.n_used) < 0 ||
 331                 pa_tagstruct_getu32(t, &i.auto_unload) < 0) {
 332                 pa_context_fail(o->context, PA_ERROR_PROTOCOL);
 333                 goto finish;
 334             }
 335
 336             if (o->callback) {
 337                 void (*cb)(struct pa_context *s, const struct pa_module_info*i, int eof, void *userdata) = o->callback;
 338                 cb(o->context, &i, 0, o->userdata);
 339             }
 340         }
 341     }
 342
 343     if (o->callback) {
 344         void (*cb)(struct pa_context *s, const struct pa_module_info*i, int eof, void *userdata) = o->callback;
 345         cb(o->context, NULL, eof, o->userdata);
 346     }
 347
 348 finish:
 349     pa_operation_done(o);
 350     pa_operation_unref(o);
 351 }
 352
 353 struct pa_operation* pa_context_get_module_info(struct pa_context *c, uint32_t index, void (*cb)(struct pa_context *c, const struct pa_module_info*i, int is_last, void *userdata), void *userdata) {
 354     struct pa_tagstruct *t;
 355     struct pa_operation *o;
 356     uint32_t tag;
 357     assert(c && cb);
 358
 359     o = pa_operation_new(c, NULL);
 360     o->callback = cb;
 361     o->userdata = userdata;
 362
 363     t = pa_tagstruct_new(NULL, 0);
 364     pa_tagstruct_putu32(t, PA_COMMAND_GET_MODULE_INFO);
 365     pa_tagstruct_putu32(t, tag = c->ctag++);
 366     pa_tagstruct_putu32(t, index);
 367     pa_pstream_send_tagstruct(c->pstream, t);
 368     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_module_info_callback, o);
 369
 370     return pa_operation_ref(o);
 371 }
 372
 373 struct pa_operation* pa_context_get_module_info_list(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_module_info*i, int is_last, void *userdata), void *userdata) {
 374     return pa_context_send_simple_command(c, PA_COMMAND_GET_MODULE_INFO_LIST, context_get_module_info_callback, cb, userdata);
 375 }
 376
 377 /*** Sink input info ***/
 378
 379 static void context_get_sink_input_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 380     struct pa_operation *o = userdata;
 381     int eof = 1;
 382     assert(pd && o && o->context && o->ref >= 1);
 383
 384     if (command != PA_COMMAND_REPLY) {
 385         if (pa_context_handle_error(o->context, command, t) < 0)
 386             goto finish;
 387
 388         eof = -1;
 389     } else {
 390
 391         while (!pa_tagstruct_eof(t)) {
 392             struct pa_sink_input_info i;
 393
 394             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 395                 pa_tagstruct_gets(t, &i.name) < 0 ||
 396                 pa_tagstruct_getu32(t, &i.owner_module) < 0 ||
 397                 pa_tagstruct_getu32(t, &i.client) < 0 ||
 398                 pa_tagstruct_getu32(t, &i.sink) < 0 ||
 399                 pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 ||
 400                 pa_tagstruct_getu32(t, &i.volume) < 0 ||
 401                 pa_tagstruct_getu32(t, &i.latency) < 0) {
 402                 pa_context_fail(o->context, PA_ERROR_PROTOCOL);
 403                 goto finish;
 404             }
 405
 406             if (o->callback) {
 407                 void (*cb)(struct pa_context *s, const struct pa_sink_input_info*i, int eof, void *userdata) = o->callback;
 408                 cb(o->context, &i, 0, o->userdata);
 409             }
 410         }
 411     }
 412
 413     if (o->callback) {
 414         void (*cb)(struct pa_context *s, const struct pa_sink_input_info*i, int eof, void *userdata) = o->callback;
 415         cb(o->context, NULL, eof, o->userdata);
 416     }
 417
 418 finish:
 419     pa_operation_done(o);
 420     pa_operation_unref(o);
 421 }
 422
 423 struct pa_operation* pa_context_get_sink_input_info(struct pa_context *c, uint32_t index, void (*cb)(struct pa_context *c, const struct pa_sink_input_info*i, int is_last, void *userdata), void *userdata) {
 424     struct pa_tagstruct *t;
 425     struct pa_operation *o;
 426     uint32_t tag;
 427     assert(c && cb);
 428
 429     o = pa_operation_new(c, NULL);
 430     o->callback = cb;
 431     o->userdata = userdata;
 432
 433     t = pa_tagstruct_new(NULL, 0);
 434     pa_tagstruct_putu32(t, PA_COMMAND_GET_SINK_INPUT_INFO);
 435     pa_tagstruct_putu32(t, tag = c->ctag++);
 436     pa_tagstruct_putu32(t, index);
 437     pa_pstream_send_tagstruct(c->pstream, t);
 438     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_sink_input_info_callback, o);
 439
 440     return pa_operation_ref(o);
 441 }
 442
 443 struct pa_operation* pa_context_get_sink_input_info_list(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_sink_input_info*i, int is_last, void *userdata), void *userdata) {
 444     return pa_context_send_simple_command(c, PA_COMMAND_GET_SINK_INPUT_INFO_LIST, context_get_sink_input_info_callback, cb, userdata);
 445 }
 446
 447 /*** Source output info ***/
 448
 449 static void context_get_source_output_info_callback(struct pa_pdispatch *pd, uint32_t command, uint32_t tag, struct pa_tagstruct *t, void *userdata) {
 450     struct pa_operation *o = userdata;
 451     int eof = 1;
 452     assert(pd && o && o->context && o->ref >= 1);
 453
 454     if (command != PA_COMMAND_REPLY) {
 455         if (pa_context_handle_error(o->context, command, t) < 0)
 456             goto finish;
 457
 458         eof = -1;
 459     } else {
 460
 461         while (!pa_tagstruct_eof(t)) {
 462             struct pa_source_output_info i;
 463
 464             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 465                 pa_tagstruct_gets(t, &i.name) < 0 ||
 466                 pa_tagstruct_getu32(t, &i.owner_module) < 0 ||
 467                 pa_tagstruct_getu32(t, &i.client) < 0 ||
 468                 pa_tagstruct_getu32(t, &i.source) < 0 ||
 469                 pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0) {
 470                 pa_context_fail(o->context, PA_ERROR_PROTOCOL);
 471                 goto finish;
 472             }
 473
 474             if (o->callback) {
 475                 void (*cb)(struct pa_context *s, const struct pa_source_output_info*i, int eof, void *userdata) = o->callback;
 476                 cb(o->context, &i, 0, o->userdata);
 477             }
 478         }
 479     }
 480
 481     if (o->callback) {
 482         void (*cb)(struct pa_context *s, const struct pa_source_output_info*i, int eof, void *userdata) = o->callback;
 483         cb(o->context, NULL, eof, o->userdata);
 484     }
 485
 486 finish:
 487     pa_operation_done(o);
 488     pa_operation_unref(o);
 489 }
 490
 491 struct pa_operation* pa_context_get_source_output_info(struct pa_context *c, uint32_t index, void (*cb)(struct pa_context *c, const struct pa_source_output_info*i, int is_last, void *userdata), void *userdata) {
 492     struct pa_tagstruct *t;
 493     struct pa_operation *o;
 494     uint32_t tag;
 495     assert(c && cb);
 496
 497     o = pa_operation_new(c, NULL);
 498     o->callback = cb;
 499     o->userdata = userdata;
 500
 501     t = pa_tagstruct_new(NULL, 0);
 502     pa_tagstruct_putu32(t, PA_COMMAND_GET_SOURCE_OUTPUT_INFO);
 503     pa_tagstruct_putu32(t, tag = c->ctag++);
 504     pa_tagstruct_putu32(t, index);
 505     pa_pstream_send_tagstruct(c->pstream, t);
 506     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_source_output_info_callback, o);
 507
 508     return pa_operation_ref(o);
 509 }
 510
 511 struct pa_operation* pa_context_get_source_output_info_list(struct pa_context *c, void (*cb)(struct pa_context *c, const struct pa_source_output_info*i, int is_last, void *userdata), void *userdata) {
 512     return pa_context_send_simple_command(c, PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST, context_get_source_output_info_callback, cb, userdata);
 513 }
 514
 515 /*** Volume manipulation ***/
 516
 517 struct pa_operation* pa_context_set_sink_volume_by_index(struct pa_context *c, uint32_t index, uint32_t volume, void (*cb)(struct pa_context *c, int success, void *userdata), void *userdata) {
 518     struct pa_operation *o;
 519     struct pa_tagstruct *t;
 520     uint32_t tag;
 521     assert(c && index != PA_INVALID_INDEX);
 522
 523     o = pa_operation_new(c, NULL);
 524     o->callback = cb;
 525     o->userdata = userdata;
 526
 527     t = pa_tagstruct_new(NULL, 0);
 528     pa_tagstruct_putu32(t, PA_COMMAND_SET_SINK_VOLUME);
 529     pa_tagstruct_putu32(t, tag = c->ctag++);
 530     pa_tagstruct_putu32(t, index);
 531     pa_tagstruct_puts(t, "");
 532     pa_tagstruct_putu32(t, volume);
 533     pa_pstream_send_tagstruct(c->pstream, t);
 534     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, o);
 535
 536     return pa_operation_ref(o);
 537 }
 538
 539 struct pa_operation* pa_context_set_sink_volume_by_name(struct pa_context *c, const char *name, uint32_t volume, void (*cb)(struct pa_context *c, int success, void *userdata), void *userdata) {
 540     struct pa_operation *o;
 541     struct pa_tagstruct *t;
 542     uint32_t tag;
 543     assert(c && name);
 544
 545     o = pa_operation_new(c, NULL);
 546     o->callback = cb;
 547     o->userdata = userdata;
 548
 549     t = pa_tagstruct_new(NULL, 0);
 550     pa_tagstruct_putu32(t, PA_COMMAND_SET_SINK_VOLUME);
 551     pa_tagstruct_putu32(t, tag = c->ctag++);
 552     pa_tagstruct_putu32(t, PA_INVALID_INDEX);
 553     pa_tagstruct_puts(t, name);
 554     pa_tagstruct_putu32(t, volume);
 555     pa_pstream_send_tagstruct(c->pstream, t);
 556     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, o);
 557
 558     return pa_operation_ref(o);
 559 }
 560
 561 struct pa_operation* pa_context_set_sink_input_volume(struct pa_context *c, uint32_t index, uint32_t volume, void (*cb)(struct pa_context *c, int success, void *userdata), void *userdata) {
 562     struct pa_operation *o;
 563     struct pa_tagstruct *t;
 564     uint32_t tag;
 565     assert(c && index != PA_INVALID_INDEX);
 566
 567     o = pa_operation_new(c, NULL);
 568     o->callback = cb;
 569     o->userdata = userdata;
 570
 571     t = pa_tagstruct_new(NULL, 0);
 572     pa_tagstruct_putu32(t, PA_COMMAND_SET_SINK_INPUT_VOLUME);
 573     pa_tagstruct_putu32(t, tag = c->ctag++);
 574     pa_tagstruct_putu32(t, index);
 575     pa_tagstruct_putu32(t, volume);
 576     pa_pstream_send_tagstruct(c->pstream, t);
 577     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, o);
 578
 579     return pa_operation_ref(o);
 580 }