code.delx.au - pulseaudio/blob - src/pulse/introspect.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   PulseAudio is free software; you can redistribute it and/or modify
   7   it under the terms of the GNU Lesser 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   PulseAudio 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 Lesser General Public License
  17   along with PulseAudio; 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 <pulse/context.h>
  29
  30 #include <pulsecore/gccmacro.h>
  31 #include <pulsecore/pstream-util.h>
  32
  33 #include "internal.h"
  34
  35 #include "introspect.h"
  36
  37 /*** Statistics ***/
  38
  39 static void context_stat_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
  40     pa_operation *o = userdata;
  41     pa_stat_info i, *p = &i;
  42
  43     assert(pd);
  44     assert(o);
  45     assert(o->ref >= 1);
  46
  47     if (!o->context)
  48         goto finish;
  49
  50     if (command != PA_COMMAND_REPLY) {
  51         if (pa_context_handle_error(o->context, command, t) < 0)
  52             goto finish;
  53
  54         p = NULL;
  55     } else if (pa_tagstruct_getu32(t, &i.memblock_total) < 0 ||
  56                pa_tagstruct_getu32(t, &i.memblock_total_size) < 0 ||
  57                pa_tagstruct_getu32(t, &i.memblock_allocated) < 0 ||
  58                pa_tagstruct_getu32(t, &i.memblock_allocated_size) < 0 ||
  59                pa_tagstruct_getu32(t, &i.scache_size) < 0 ||
  60                !pa_tagstruct_eof(t)) {
  61         pa_context_fail(o->context, PA_ERR_PROTOCOL);
  62         goto finish;
  63     }
  64
  65     if (o->callback) {
  66         pa_stat_info_cb_t cb = (pa_stat_info_cb_t) o->callback;
  67         cb(o->context, p, o->userdata);
  68     }
  69
  70 finish:
  71     pa_operation_done(o);
  72     pa_operation_unref(o);
  73 }
  74
  75 pa_operation* pa_context_stat(pa_context *c, pa_stat_info_cb_t cb, void *userdata) {
  76     return pa_context_send_simple_command(c, PA_COMMAND_STAT, context_stat_callback, (pa_operation_cb_t) cb, userdata);
  77 }
  78
  79 /*** Server Info ***/
  80
  81 static void context_get_server_info_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
  82     pa_operation *o = userdata;
  83     pa_server_info i, *p = &i;
  84
  85     assert(pd);
  86     assert(o);
  87     assert(o->ref >= 1);
  88
  89     if (!o->context)
  90         goto finish;
  91
  92     if (command != PA_COMMAND_REPLY) {
  93         if (pa_context_handle_error(o->context, command, t) < 0)
  94             goto finish;
  95
  96         p = NULL;
  97     } else if (pa_tagstruct_gets(t, &i.server_name) < 0 ||
  98                pa_tagstruct_gets(t, &i.server_version) < 0 ||
  99                pa_tagstruct_gets(t, &i.user_name) < 0 ||
 100                pa_tagstruct_gets(t, &i.host_name) < 0 ||
 101                pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 ||
 102                pa_tagstruct_gets(t, &i.default_sink_name) < 0 ||
 103                pa_tagstruct_gets(t, &i.default_source_name) < 0 ||
 104                pa_tagstruct_getu32(t, &i.cookie) < 0 ||
 105                !pa_tagstruct_eof(t)) {
 106
 107         pa_context_fail(o->context, PA_ERR_PROTOCOL);
 108         goto finish;
 109     }
 110
 111     if (o->callback) {
 112         pa_server_info_cb_t cb = (pa_server_info_cb_t) o->callback;
 113         cb(o->context, p, o->userdata);
 114     }
 115
 116 finish:
 117     pa_operation_done(o);
 118     pa_operation_unref(o);
 119 }
 120
 121 pa_operation* pa_context_get_server_info(pa_context *c, pa_server_info_cb_t cb, void *userdata) {
 122     return pa_context_send_simple_command(c, PA_COMMAND_GET_SERVER_INFO, context_get_server_info_callback, (pa_operation_cb_t) cb, userdata);
 123 }
 124
 125 /*** Sink Info ***/
 126
 127 static void context_get_sink_info_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
 128     pa_operation *o = userdata;
 129     int eol = 1;
 130
 131     assert(pd);
 132     assert(o);
 133     assert(o->ref >= 1);
 134
 135     if (!o->context)
 136         goto finish;
 137
 138     if (command != PA_COMMAND_REPLY) {
 139         if (pa_context_handle_error(o->context, command, t) < 0)
 140             goto finish;
 141
 142         eol = -1;
 143     } else {
 144         uint32_t flags;
 145
 146         while (!pa_tagstruct_eof(t)) {
 147             pa_sink_info i;
 148
 149             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 150                 pa_tagstruct_gets(t, &i.name) < 0 ||
 151                 pa_tagstruct_gets(t, &i.description) < 0 ||
 152                 pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 ||
 153                 pa_tagstruct_get_channel_map(t, &i.channel_map) < 0 ||
 154                 pa_tagstruct_getu32(t, &i.owner_module) < 0 ||
 155                 pa_tagstruct_get_cvolume(t, &i.volume) < 0 ||
 156                 pa_tagstruct_get_boolean(t, &i.mute) < 0 ||
 157                 pa_tagstruct_getu32(t, &i.monitor_source) < 0 ||
 158                 pa_tagstruct_gets(t, &i.monitor_source_name) < 0 ||
 159                 pa_tagstruct_get_usec(t, &i.latency) < 0 ||
 160                 pa_tagstruct_gets(t, &i.driver) < 0 ||
 161                 pa_tagstruct_getu32(t, &flags) < 0) {
 162
 163                 pa_context_fail(o->context, PA_ERR_PROTOCOL);
 164                 goto finish;
 165             }
 166
 167             i.flags = (pa_sink_flags_t) flags;
 168
 169             if (o->callback) {
 170                 pa_sink_info_cb_t cb = (pa_sink_info_cb_t) o->callback;
 171                 cb(o->context, &i, 0, o->userdata);
 172             }
 173         }
 174     }
 175
 176     if (o->callback) {
 177         pa_sink_info_cb_t cb = (pa_sink_info_cb_t) o->callback;
 178         cb(o->context, NULL, eol, o->userdata);
 179     }
 180
 181 finish:
 182     pa_operation_done(o);
 183     pa_operation_unref(o);
 184 }
 185
 186 pa_operation* pa_context_get_sink_info_list(pa_context *c, pa_sink_info_cb_t cb, void *userdata) {
 187     return pa_context_send_simple_command(c, PA_COMMAND_GET_SINK_INFO_LIST, context_get_sink_info_callback, (pa_operation_cb_t) cb, userdata);
 188 }
 189
 190 pa_operation* pa_context_get_sink_info_by_index(pa_context *c, uint32_t idx, pa_sink_info_cb_t cb, void *userdata) {
 191     pa_tagstruct *t;
 192     pa_operation *o;
 193     uint32_t tag;
 194
 195     assert(c);
 196     assert(c->ref >= 1);
 197     assert(cb);
 198
 199     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 200
 201     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 202
 203     t = pa_tagstruct_command(c, PA_COMMAND_GET_SINK_INFO, &tag);
 204     pa_tagstruct_putu32(t, idx);
 205     pa_tagstruct_puts(t, NULL);
 206     pa_pstream_send_tagstruct(c->pstream, t);
 207     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_sink_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 208
 209     return o;
 210 }
 211
 212 pa_operation* pa_context_get_sink_info_by_name(pa_context *c, const char *name, pa_sink_info_cb_t cb, void *userdata) {
 213     pa_tagstruct *t;
 214     pa_operation *o;
 215     uint32_t tag;
 216
 217     assert(c);
 218     assert(c->ref >= 1);
 219     assert(cb);
 220
 221     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 222     PA_CHECK_VALIDITY_RETURN_NULL(c, !name || *name, PA_ERR_INVALID);
 223
 224     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 225
 226     t = pa_tagstruct_command(c, PA_COMMAND_GET_SINK_INFO, &tag);
 227     pa_tagstruct_putu32(t, PA_INVALID_INDEX);
 228     pa_tagstruct_puts(t, name);
 229     pa_pstream_send_tagstruct(c->pstream, t);
 230     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_sink_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 231
 232     return o;
 233 }
 234
 235 /*** Source info ***/
 236
 237 static void context_get_source_info_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
 238     pa_operation *o = userdata;
 239     int eol = 1;
 240
 241     assert(pd);
 242     assert(o);
 243     assert(o->ref >= 1);
 244
 245     if (!o->context)
 246         goto finish;
 247
 248     if (command != PA_COMMAND_REPLY) {
 249         if (pa_context_handle_error(o->context, command, t) < 0)
 250             goto finish;
 251
 252         eol = -1;
 253     } else {
 254
 255         while (!pa_tagstruct_eof(t)) {
 256             pa_source_info i;
 257             uint32_t flags;
 258
 259             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 260                 pa_tagstruct_gets(t, &i.name) < 0 ||
 261                 pa_tagstruct_gets(t, &i.description) < 0 ||
 262                 pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 ||
 263                 pa_tagstruct_get_channel_map(t, &i.channel_map) < 0 ||
 264                 pa_tagstruct_getu32(t, &i.owner_module) < 0 ||
 265                 pa_tagstruct_get_cvolume(t, &i.volume) < 0 ||
 266                 pa_tagstruct_get_boolean(t, &i.mute) < 0 ||
 267                 pa_tagstruct_getu32(t, &i.monitor_of_sink) < 0 ||
 268                 pa_tagstruct_gets(t, &i.monitor_of_sink_name) < 0 ||
 269                 pa_tagstruct_get_usec(t, &i.latency) < 0 ||
 270                 pa_tagstruct_gets(t, &i.driver) < 0 ||
 271                 pa_tagstruct_getu32(t, &flags) < 0) {
 272
 273                 pa_context_fail(o->context, PA_ERR_PROTOCOL);
 274                 goto finish;
 275             }
 276
 277             i.flags = (pa_source_flags_t) flags;
 278
 279             if (o->callback) {
 280                 pa_source_info_cb_t cb = (pa_source_info_cb_t) o->callback;
 281                 cb(o->context, &i, 0, o->userdata);
 282             }
 283         }
 284     }
 285
 286     if (o->callback) {
 287         pa_source_info_cb_t cb = (pa_source_info_cb_t) o->callback;
 288         cb(o->context, NULL, eol, o->userdata);
 289     }
 290
 291 finish:
 292     pa_operation_done(o);
 293     pa_operation_unref(o);
 294 }
 295
 296 pa_operation* pa_context_get_source_info_list(pa_context *c, pa_source_info_cb_t cb, void *userdata) {
 297     return pa_context_send_simple_command(c, PA_COMMAND_GET_SOURCE_INFO_LIST, context_get_source_info_callback, (pa_operation_cb_t) cb, userdata);
 298 }
 299
 300 pa_operation* pa_context_get_source_info_by_index(pa_context *c, uint32_t idx, pa_source_info_cb_t cb, void *userdata) {
 301     pa_tagstruct *t;
 302     pa_operation *o;
 303     uint32_t tag;
 304
 305     assert(c);
 306     assert(c->ref >= 1);
 307     assert(cb);
 308
 309     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 310
 311     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 312
 313     t = pa_tagstruct_command(c, PA_COMMAND_GET_SOURCE_INFO, &tag);
 314     pa_tagstruct_putu32(t, idx);
 315     pa_tagstruct_puts(t, NULL);
 316     pa_pstream_send_tagstruct(c->pstream, t);
 317     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_source_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 318
 319     return o;
 320 }
 321
 322 pa_operation* pa_context_get_source_info_by_name(pa_context *c, const char *name, pa_source_info_cb_t cb, void *userdata) {
 323     pa_tagstruct *t;
 324     pa_operation *o;
 325     uint32_t tag;
 326
 327     assert(c);
 328     assert(c->ref >= 1);
 329     assert(cb);
 330
 331     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 332     PA_CHECK_VALIDITY_RETURN_NULL(c, !name || *name, PA_ERR_INVALID);
 333
 334     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 335
 336     t = pa_tagstruct_command(c, PA_COMMAND_GET_SOURCE_INFO, &tag);
 337     pa_tagstruct_putu32(t, PA_INVALID_INDEX);
 338     pa_tagstruct_puts(t, name);
 339     pa_pstream_send_tagstruct(c->pstream, t);
 340     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_source_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 341
 342     return o;
 343 }
 344
 345 /*** Client info ***/
 346
 347 static void context_get_client_info_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
 348     pa_operation *o = userdata;
 349     int eol = 1;
 350
 351     assert(pd);
 352     assert(o);
 353     assert(o->ref >= 1);
 354
 355     if (!o->context)
 356         goto finish;
 357
 358     if (command != PA_COMMAND_REPLY) {
 359         if (pa_context_handle_error(o->context, command, t) < 0)
 360             goto finish;
 361
 362         eol = -1;
 363     } else {
 364
 365         while (!pa_tagstruct_eof(t)) {
 366             pa_client_info i;
 367
 368             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 369                 pa_tagstruct_gets(t, &i.name) < 0 ||
 370                 pa_tagstruct_getu32(t, &i.owner_module) < 0 ||
 371                 pa_tagstruct_gets(t, &i.driver) < 0 ) {
 372                 pa_context_fail(o->context, PA_ERR_PROTOCOL);
 373                 goto finish;
 374             }
 375
 376             if (o->callback) {
 377                 pa_client_info_cb_t cb = (pa_client_info_cb_t) o->callback;
 378                 cb(o->context, &i, 0, o->userdata);
 379             }
 380         }
 381     }
 382
 383     if (o->callback) {
 384         pa_client_info_cb_t cb = (pa_client_info_cb_t) o->callback;
 385         cb(o->context, NULL, eol, o->userdata);
 386     }
 387
 388 finish:
 389     pa_operation_done(o);
 390     pa_operation_unref(o);
 391 }
 392
 393 pa_operation* pa_context_get_client_info(pa_context *c, uint32_t idx, pa_client_info_cb_t cb, void *userdata) {
 394     pa_tagstruct *t;
 395     pa_operation *o;
 396     uint32_t tag;
 397
 398     assert(c);
 399     assert(c->ref >= 1);
 400     assert(cb);
 401
 402     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 403     PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
 404
 405     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 406
 407     t = pa_tagstruct_command(c, PA_COMMAND_GET_CLIENT_INFO, &tag);
 408     pa_tagstruct_putu32(t, idx);
 409     pa_pstream_send_tagstruct(c->pstream, t);
 410     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_client_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 411
 412     return o;
 413 }
 414
 415 pa_operation* pa_context_get_client_info_list(pa_context *c, pa_client_info_cb_t cb, void *userdata) {
 416     return pa_context_send_simple_command(c, PA_COMMAND_GET_CLIENT_INFO_LIST, context_get_client_info_callback, (pa_operation_cb_t) cb, userdata);
 417 }
 418
 419 /*** Module info ***/
 420
 421 static void context_get_module_info_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
 422     pa_operation *o = userdata;
 423     int eol = 1;
 424
 425     assert(pd);
 426     assert(o);
 427     assert(o->ref >= 1);
 428
 429     if (!o->context)
 430         goto finish;
 431
 432     if (command != PA_COMMAND_REPLY) {
 433         if (pa_context_handle_error(o->context, command, t) < 0)
 434             goto finish;
 435
 436         eol = -1;
 437     } else {
 438
 439         while (!pa_tagstruct_eof(t)) {
 440             pa_module_info i;
 441
 442             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 443                 pa_tagstruct_gets(t, &i.name) < 0 ||
 444                 pa_tagstruct_gets(t, &i.argument) < 0 ||
 445                 pa_tagstruct_getu32(t, &i.n_used) < 0 ||
 446                 pa_tagstruct_get_boolean(t, &i.auto_unload) < 0) {
 447                 pa_context_fail(o->context, PA_ERR_PROTOCOL);
 448                 goto finish;
 449             }
 450
 451             if (o->callback) {
 452                 pa_module_info_cb_t cb = (pa_module_info_cb_t) o->callback;
 453                 cb(o->context, &i, 0, o->userdata);
 454             }
 455         }
 456     }
 457
 458     if (o->callback) {
 459         pa_module_info_cb_t cb = (pa_module_info_cb_t) o->callback;
 460         cb(o->context, NULL, eol, o->userdata);
 461     }
 462
 463 finish:
 464     pa_operation_done(o);
 465     pa_operation_unref(o);
 466 }
 467
 468 pa_operation* pa_context_get_module_info(pa_context *c, uint32_t idx, pa_module_info_cb_t cb, void *userdata) {
 469     pa_tagstruct *t;
 470     pa_operation *o;
 471     uint32_t tag;
 472
 473     assert(c);
 474     assert(c->ref >= 1);
 475     assert(cb);
 476
 477     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 478     PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
 479
 480     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 481
 482     t = pa_tagstruct_command(c, PA_COMMAND_GET_MODULE_INFO, &tag);
 483     pa_tagstruct_putu32(t, idx);
 484     pa_pstream_send_tagstruct(c->pstream, t);
 485     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_module_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 486
 487     return o;
 488 }
 489
 490 pa_operation* pa_context_get_module_info_list(pa_context *c, pa_module_info_cb_t cb, void *userdata) {
 491     return pa_context_send_simple_command(c, PA_COMMAND_GET_MODULE_INFO_LIST, context_get_module_info_callback, (pa_operation_cb_t) cb, userdata);
 492 }
 493
 494 /*** Sink input info ***/
 495
 496 static void context_get_sink_input_info_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
 497     pa_operation *o = userdata;
 498     int eol = 1;
 499
 500     assert(pd);
 501     assert(o);
 502     assert(o->ref >= 1);
 503
 504     if (!o->context)
 505         goto finish;
 506
 507     if (command != PA_COMMAND_REPLY) {
 508         if (pa_context_handle_error(o->context, command, t) < 0)
 509             goto finish;
 510
 511         eol = -1;
 512     } else {
 513
 514         while (!pa_tagstruct_eof(t)) {
 515             pa_sink_input_info i;
 516
 517             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 518                 pa_tagstruct_gets(t, &i.name) < 0 ||
 519                 pa_tagstruct_getu32(t, &i.owner_module) < 0 ||
 520                 pa_tagstruct_getu32(t, &i.client) < 0 ||
 521                 pa_tagstruct_getu32(t, &i.sink) < 0 ||
 522                 pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 ||
 523                 pa_tagstruct_get_channel_map(t, &i.channel_map) < 0 ||
 524                 pa_tagstruct_get_cvolume(t, &i.volume) < 0 ||
 525                 pa_tagstruct_get_usec(t, &i.buffer_usec) < 0 ||
 526                 pa_tagstruct_get_usec(t, &i.sink_usec) < 0 ||
 527                 pa_tagstruct_gets(t, &i.resample_method) < 0 ||
 528                 pa_tagstruct_gets(t, &i.driver) < 0) {
 529
 530                 pa_context_fail(o->context, PA_ERR_PROTOCOL);
 531                 goto finish;
 532             }
 533
 534             if (o->callback) {
 535                 pa_sink_input_info_cb_t cb = (pa_sink_input_info_cb_t) o->callback;
 536                 cb(o->context, &i, 0, o->userdata);
 537             }
 538         }
 539     }
 540
 541     if (o->callback) {
 542         pa_sink_input_info_cb_t cb = (pa_sink_input_info_cb_t) o->callback;
 543         cb(o->context, NULL, eol, o->userdata);
 544     }
 545
 546 finish:
 547     pa_operation_done(o);
 548     pa_operation_unref(o);
 549 }
 550
 551 pa_operation* pa_context_get_sink_input_info(pa_context *c, uint32_t idx, pa_sink_input_info_cb_t cb, void *userdata) {
 552     pa_tagstruct *t;
 553     pa_operation *o;
 554     uint32_t tag;
 555
 556     assert(c);
 557     assert(c->ref >= 1);
 558     assert(cb);
 559
 560     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 561     PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
 562
 563     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 564
 565     t = pa_tagstruct_command(c, PA_COMMAND_GET_SINK_INPUT_INFO, &tag);
 566     pa_tagstruct_putu32(t, idx);
 567     pa_pstream_send_tagstruct(c->pstream, t);
 568     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_sink_input_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 569
 570     return o;
 571 }
 572
 573 pa_operation* pa_context_get_sink_input_info_list(pa_context *c, void (*cb)(pa_context *c, const pa_sink_input_info*i, int is_last, void *userdata), void *userdata) {
 574     return pa_context_send_simple_command(c, PA_COMMAND_GET_SINK_INPUT_INFO_LIST, context_get_sink_input_info_callback, (pa_operation_cb_t) cb, userdata);
 575 }
 576
 577 /*** Source output info ***/
 578
 579 static void context_get_source_output_info_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
 580     pa_operation *o = userdata;
 581     int eol = 1;
 582
 583     assert(pd);
 584     assert(o);
 585     assert(o->ref >= 1);
 586
 587     if (!o->context)
 588         goto finish;
 589
 590     if (command != PA_COMMAND_REPLY) {
 591         if (pa_context_handle_error(o->context, command, t) < 0)
 592             goto finish;
 593
 594         eol = -1;
 595     } else {
 596
 597         while (!pa_tagstruct_eof(t)) {
 598             pa_source_output_info i;
 599
 600             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 601                 pa_tagstruct_gets(t, &i.name) < 0 ||
 602                 pa_tagstruct_getu32(t, &i.owner_module) < 0 ||
 603                 pa_tagstruct_getu32(t, &i.client) < 0 ||
 604                 pa_tagstruct_getu32(t, &i.source) < 0 ||
 605                 pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 ||
 606                 pa_tagstruct_get_channel_map(t, &i.channel_map) < 0 ||
 607                 pa_tagstruct_get_usec(t, &i.buffer_usec) < 0 ||
 608                 pa_tagstruct_get_usec(t, &i.source_usec) < 0 ||
 609                 pa_tagstruct_gets(t, &i.resample_method) < 0 ||
 610                 pa_tagstruct_gets(t, &i.driver) < 0) {
 611
 612                 pa_context_fail(o->context, PA_ERR_PROTOCOL);
 613                 goto finish;
 614             }
 615
 616             if (o->callback) {
 617                 pa_source_output_info_cb_t cb = (pa_source_output_info_cb_t) o->callback;
 618                 cb(o->context, &i, 0, o->userdata);
 619             }
 620         }
 621     }
 622
 623     if (o->callback) {
 624         pa_source_output_info_cb_t cb = (pa_source_output_info_cb_t) o->callback;
 625         cb(o->context, NULL, eol, o->userdata);
 626     }
 627
 628 finish:
 629     pa_operation_done(o);
 630     pa_operation_unref(o);
 631 }
 632
 633 pa_operation* pa_context_get_source_output_info(pa_context *c, uint32_t idx, pa_source_output_info_cb_t cb, void *userdata) {
 634     pa_tagstruct *t;
 635     pa_operation *o;
 636     uint32_t tag;
 637
 638     assert(c);
 639     assert(c->ref >= 1);
 640     assert(cb);
 641
 642     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 643     PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
 644
 645     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 646
 647     t = pa_tagstruct_command(c, PA_COMMAND_GET_SOURCE_OUTPUT_INFO, &tag);
 648     pa_tagstruct_putu32(t, idx);
 649     pa_pstream_send_tagstruct(c->pstream, t);
 650     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_source_output_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 651
 652     return o;
 653 }
 654
 655 pa_operation* pa_context_get_source_output_info_list(pa_context *c,  pa_source_output_info_cb_t cb, void *userdata) {
 656     return pa_context_send_simple_command(c, PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST, context_get_source_output_info_callback, (pa_operation_cb_t) cb, userdata);
 657 }
 658
 659 /*** Volume manipulation ***/
 660
 661 pa_operation* pa_context_set_sink_volume_by_index(pa_context *c, uint32_t idx, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata) {
 662     pa_operation *o;
 663     pa_tagstruct *t;
 664     uint32_t tag;
 665
 666     assert(c);
 667     assert(c->ref >= 1);
 668     assert(volume);
 669
 670     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 671     PA_CHECK_VALIDITY_RETURN_NULL(c, pa_cvolume_valid(volume), PA_ERR_INVALID);
 672
 673     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 674
 675     t = pa_tagstruct_command(c, PA_COMMAND_SET_SINK_VOLUME, &tag);
 676     pa_tagstruct_putu32(t, idx);
 677     pa_tagstruct_puts(t, NULL);
 678     pa_tagstruct_put_cvolume(t, volume);
 679     pa_pstream_send_tagstruct(c->pstream, t);
 680     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 681
 682     return o;
 683 }
 684
 685 pa_operation* pa_context_set_sink_volume_by_name(pa_context *c, const char *name, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata) {
 686     pa_operation *o;
 687     pa_tagstruct *t;
 688     uint32_t tag;
 689
 690     assert(c);
 691     assert(c->ref >= 1);
 692     assert(name);
 693     assert(volume);
 694
 695     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 696     PA_CHECK_VALIDITY_RETURN_NULL(c, pa_cvolume_valid(volume), PA_ERR_INVALID);
 697     PA_CHECK_VALIDITY_RETURN_NULL(c, !name || *name, PA_ERR_INVALID);
 698
 699     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 700
 701     t = pa_tagstruct_command(c, PA_COMMAND_SET_SINK_VOLUME, &tag);
 702     pa_tagstruct_putu32(t, PA_INVALID_INDEX);
 703     pa_tagstruct_puts(t, name);
 704     pa_tagstruct_put_cvolume(t, volume);
 705     pa_pstream_send_tagstruct(c->pstream, t);
 706     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 707
 708     return o;
 709 }
 710
 711 pa_operation* pa_context_set_sink_mute_by_index(pa_context *c, uint32_t idx, int mute, pa_context_success_cb_t cb, void *userdata) {
 712     pa_operation *o;
 713     pa_tagstruct *t;
 714     uint32_t tag;
 715
 716     assert(c);
 717     assert(c->ref >= 1);
 718
 719     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 720
 721     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 722
 723     t = pa_tagstruct_command(c, PA_COMMAND_SET_SINK_MUTE, &tag);
 724     pa_tagstruct_putu32(t, idx);
 725     pa_tagstruct_puts(t, NULL);
 726     pa_tagstruct_put_boolean(t, mute);
 727     pa_pstream_send_tagstruct(c->pstream, t);
 728     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 729
 730     return o;
 731 }
 732
 733 pa_operation* pa_context_set_sink_mute_by_name(pa_context *c, const char *name, int mute, pa_context_success_cb_t cb, void *userdata) {
 734     pa_operation *o;
 735     pa_tagstruct *t;
 736     uint32_t tag;
 737
 738     assert(c);
 739     assert(c->ref >= 1);
 740     assert(name);
 741
 742     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 743     PA_CHECK_VALIDITY_RETURN_NULL(c, !name || *name, PA_ERR_INVALID);
 744
 745     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 746
 747     t = pa_tagstruct_command(c, PA_COMMAND_SET_SINK_MUTE, &tag);
 748     pa_tagstruct_putu32(t, PA_INVALID_INDEX);
 749     pa_tagstruct_puts(t, name);
 750     pa_tagstruct_put_boolean(t, mute);
 751     pa_pstream_send_tagstruct(c->pstream, t);
 752     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 753
 754     return o;
 755 }
 756
 757 pa_operation* pa_context_set_sink_input_volume(pa_context *c, uint32_t idx, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata) {
 758     pa_operation *o;
 759     pa_tagstruct *t;
 760     uint32_t tag;
 761
 762     assert(c);
 763     assert(c->ref >= 1);
 764     assert(volume);
 765
 766     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 767     PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
 768     PA_CHECK_VALIDITY_RETURN_NULL(c, pa_cvolume_valid(volume), PA_ERR_INVALID);
 769
 770     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 771
 772     t = pa_tagstruct_command(c, PA_COMMAND_SET_SINK_INPUT_VOLUME, &tag);
 773     pa_tagstruct_putu32(t, idx);
 774     pa_tagstruct_put_cvolume(t, volume);
 775     pa_pstream_send_tagstruct(c->pstream, t);
 776     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 777
 778     return o;
 779 }
 780
 781 pa_operation* pa_context_set_source_volume_by_index(pa_context *c, uint32_t idx, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata) {
 782     pa_operation *o;
 783     pa_tagstruct *t;
 784     uint32_t tag;
 785
 786     assert(c);
 787     assert(c->ref >= 1);
 788     assert(volume);
 789
 790     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 791     PA_CHECK_VALIDITY_RETURN_NULL(c, pa_cvolume_valid(volume), PA_ERR_INVALID);
 792
 793     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 794
 795     t = pa_tagstruct_command(c, PA_COMMAND_SET_SOURCE_VOLUME, &tag);
 796     pa_tagstruct_putu32(t, idx);
 797     pa_tagstruct_puts(t, NULL);
 798     pa_tagstruct_put_cvolume(t, volume);
 799     pa_pstream_send_tagstruct(c->pstream, t);
 800     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 801
 802     return o;
 803 }
 804
 805 pa_operation* pa_context_set_source_volume_by_name(pa_context *c, const char *name, const pa_cvolume *volume, pa_context_success_cb_t cb, void *userdata) {
 806     pa_operation *o;
 807     pa_tagstruct *t;
 808     uint32_t tag;
 809
 810     assert(c);
 811     assert(c->ref >= 1);
 812     assert(name);
 813     assert(volume);
 814
 815     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 816     PA_CHECK_VALIDITY_RETURN_NULL(c, pa_cvolume_valid(volume), PA_ERR_INVALID);
 817     PA_CHECK_VALIDITY_RETURN_NULL(c, !name || *name, PA_ERR_INVALID);
 818
 819     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 820
 821     t = pa_tagstruct_command(c, PA_COMMAND_SET_SOURCE_VOLUME, &tag);
 822     pa_tagstruct_putu32(t, PA_INVALID_INDEX);
 823     pa_tagstruct_puts(t, name);
 824     pa_tagstruct_put_cvolume(t, volume);
 825     pa_pstream_send_tagstruct(c->pstream, t);
 826     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 827
 828     return o;
 829 }
 830
 831 pa_operation* pa_context_set_source_mute_by_index(pa_context *c, uint32_t idx, int mute, pa_context_success_cb_t cb, void *userdata) {
 832     pa_operation *o;
 833     pa_tagstruct *t;
 834     uint32_t tag;
 835
 836     assert(c);
 837     assert(c->ref >= 1);
 838
 839     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 840
 841     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 842
 843     t = pa_tagstruct_command(c, PA_COMMAND_SET_SOURCE_MUTE, &tag);
 844     pa_tagstruct_putu32(t, idx);
 845     pa_tagstruct_puts(t, NULL);
 846     pa_tagstruct_put_boolean(t, mute);
 847     pa_pstream_send_tagstruct(c->pstream, t);
 848     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 849
 850     return o;
 851 }
 852
 853 pa_operation* pa_context_set_source_mute_by_name(pa_context *c, const char *name, int mute, pa_context_success_cb_t cb, void *userdata) {
 854     pa_operation *o;
 855     pa_tagstruct *t;
 856     uint32_t tag;
 857
 858     assert(c);
 859     assert(c->ref >= 1);
 860     assert(name);
 861
 862     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 863     PA_CHECK_VALIDITY_RETURN_NULL(c, !name || *name, PA_ERR_INVALID);
 864
 865     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 866
 867     t = pa_tagstruct_command(c, PA_COMMAND_SET_SOURCE_MUTE, &tag);
 868     pa_tagstruct_putu32(t, PA_INVALID_INDEX);
 869     pa_tagstruct_puts(t, name);
 870     pa_tagstruct_put_boolean(t, mute);
 871     pa_pstream_send_tagstruct(c->pstream, t);
 872     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 873
 874     return o;
 875 }
 876
 877 /** Sample Cache **/
 878
 879 static void context_get_sample_info_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
 880     pa_operation *o = userdata;
 881     int eol = 1;
 882
 883     assert(pd);
 884     assert(o);
 885     assert(o->ref >= 1);
 886
 887     if (!o->context)
 888         goto finish;
 889
 890     if (command != PA_COMMAND_REPLY) {
 891         if (pa_context_handle_error(o->context, command, t) < 0)
 892             goto finish;
 893
 894         eol = -1;
 895     } else {
 896
 897         while (!pa_tagstruct_eof(t)) {
 898             pa_sample_info i;
 899
 900             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
 901                 pa_tagstruct_gets(t, &i.name) < 0 ||
 902                 pa_tagstruct_get_cvolume(t, &i.volume) < 0 ||
 903                 pa_tagstruct_get_usec(t, &i.duration) < 0 ||
 904                 pa_tagstruct_get_sample_spec(t, &i.sample_spec) < 0 ||
 905                 pa_tagstruct_get_channel_map(t, &i.channel_map) < 0 ||
 906                 pa_tagstruct_getu32(t, &i.bytes) < 0 ||
 907                 pa_tagstruct_get_boolean(t, &i.lazy) < 0 ||
 908                 pa_tagstruct_gets(t, &i.filename) < 0) {
 909
 910                 pa_context_fail(o->context, PA_ERR_PROTOCOL);
 911                 goto finish;
 912             }
 913
 914             if (o->callback) {
 915                 pa_sample_info_cb_t cb = (pa_sample_info_cb_t) o->callback;
 916                 cb(o->context, &i, 0, o->userdata);
 917             }
 918         }
 919     }
 920
 921     if (o->callback) {
 922         pa_sample_info_cb_t cb = (pa_sample_info_cb_t) o->callback;
 923         cb(o->context, NULL, eol, o->userdata);
 924     }
 925
 926 finish:
 927     pa_operation_done(o);
 928     pa_operation_unref(o);
 929 }
 930
 931 pa_operation* pa_context_get_sample_info_by_name(pa_context *c, const char *name, pa_sample_info_cb_t cb, void *userdata) {
 932     pa_tagstruct *t;
 933     pa_operation *o;
 934     uint32_t tag;
 935
 936     assert(c);
 937     assert(c->ref >= 1);
 938     assert(cb);
 939
 940     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 941     PA_CHECK_VALIDITY_RETURN_NULL(c, name && *name, PA_ERR_INVALID);
 942
 943     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 944
 945     t = pa_tagstruct_command(c, PA_COMMAND_GET_SAMPLE_INFO, &tag);
 946     pa_tagstruct_putu32(t, PA_INVALID_INDEX);
 947     pa_tagstruct_puts(t, name);
 948     pa_pstream_send_tagstruct(c->pstream, t);
 949     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_sample_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 950
 951     return o;
 952 }
 953
 954 pa_operation* pa_context_get_sample_info_by_index(pa_context *c, uint32_t idx, pa_sample_info_cb_t cb, void *userdata) {
 955     pa_tagstruct *t;
 956     pa_operation *o;
 957     uint32_t tag;
 958
 959     assert(c);
 960     assert(c->ref >= 1);
 961     assert(cb);
 962
 963     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 964     PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
 965
 966     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 967
 968     t = pa_tagstruct_command(c, PA_COMMAND_GET_SAMPLE_INFO, &tag);
 969     pa_tagstruct_putu32(t, idx);
 970     pa_tagstruct_puts(t, NULL);
 971     pa_pstream_send_tagstruct(c->pstream, t);
 972     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_sample_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 973
 974     return o;
 975 }
 976
 977 pa_operation* pa_context_get_sample_info_list(pa_context *c, pa_sample_info_cb_t cb, void *userdata) {
 978     return pa_context_send_simple_command(c, PA_COMMAND_GET_SAMPLE_INFO_LIST, context_get_sample_info_callback, (pa_operation_cb_t) cb, userdata);
 979 }
 980
 981 static pa_operation* command_kill(pa_context *c, uint32_t command, uint32_t idx, pa_context_success_cb_t cb, void *userdata) {
 982     pa_operation *o;
 983     pa_tagstruct *t;
 984     uint32_t tag;
 985
 986     assert(c);
 987     assert(c->ref >= 1);
 988
 989     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 990     PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
 991
 992     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 993
 994     t = pa_tagstruct_command(c, command, &tag);
 995     pa_tagstruct_putu32(t, idx);
 996     pa_pstream_send_tagstruct(c->pstream, t);
 997     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 998
 999     return o;
1000 }
1001
1002 pa_operation* pa_context_kill_client(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void *userdata) {
1003     return command_kill(c, PA_COMMAND_KILL_CLIENT, idx, cb, userdata);
1004 }
1005
1006 pa_operation* pa_context_kill_sink_input(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void *userdata) {
1007     return command_kill(c, PA_COMMAND_KILL_SINK_INPUT, idx, cb, userdata);
1008 }
1009
1010 pa_operation* pa_context_kill_source_output(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void *userdata) {
1011     return command_kill(c, PA_COMMAND_KILL_SOURCE_OUTPUT, idx, cb, userdata);
1012 }
1013
1014 static void context_index_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
1015     pa_operation *o = userdata;
1016     uint32_t idx;
1017
1018     assert(pd);
1019     assert(o);
1020     assert(o->ref >= 1);
1021
1022     if (!o->context)
1023         goto finish;
1024
1025     if (command != PA_COMMAND_REPLY) {
1026         if (pa_context_handle_error(o->context, command, t) < 0)
1027             goto finish;
1028
1029         idx = PA_INVALID_INDEX;
1030     } else if (pa_tagstruct_getu32(t, &idx) ||
1031                !pa_tagstruct_eof(t)) {
1032         pa_context_fail(o->context, PA_ERR_PROTOCOL);
1033         goto finish;
1034     }
1035
1036     if (o->callback) {
1037         pa_context_index_cb_t cb = (pa_context_index_cb_t) o->callback;
1038         cb(o->context, idx, o->userdata);
1039     }
1040
1041
1042 finish:
1043     pa_operation_done(o);
1044     pa_operation_unref(o);
1045 }
1046
1047 pa_operation* pa_context_load_module(pa_context *c, const char*name, const char *argument, pa_context_index_cb_t cb, void *userdata) {
1048     pa_operation *o;
1049     pa_tagstruct *t;
1050     uint32_t tag;
1051
1052     assert(c);
1053     assert(c->ref >= 1);
1054
1055     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
1056     PA_CHECK_VALIDITY_RETURN_NULL(c, name && *name, PA_ERR_INVALID);
1057
1058     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
1059
1060     t = pa_tagstruct_command(c, PA_COMMAND_LOAD_MODULE, &tag);
1061     pa_tagstruct_puts(t, name);
1062     pa_tagstruct_puts(t, argument);
1063     pa_pstream_send_tagstruct(c->pstream, t);
1064     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_index_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
1065
1066     return o;
1067 }
1068
1069 pa_operation* pa_context_unload_module(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void *userdata) {
1070     return command_kill(c, PA_COMMAND_UNLOAD_MODULE, idx, cb, userdata);
1071 }
1072
1073 /*** Autoload stuff ***/
1074
1075 static void context_get_autoload_info_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
1076     pa_operation *o = userdata;
1077     int eol = 1;
1078
1079     assert(pd);
1080     assert(o);
1081     assert(o->ref >= 1);
1082
1083     if (!o->context)
1084         goto finish;
1085
1086     if (command != PA_COMMAND_REPLY) {
1087         if (pa_context_handle_error(o->context, command, t) < 0)
1088             goto finish;
1089
1090         eol = -1;
1091     } else {
1092
1093         while (!pa_tagstruct_eof(t)) {
1094             pa_autoload_info i;
1095
1096             if (pa_tagstruct_getu32(t, &i.index) < 0 ||
1097                 pa_tagstruct_gets(t, &i.name) < 0 ||
1098                 pa_tagstruct_getu32(t, &i.type) < 0 ||
1099                 pa_tagstruct_gets(t, &i.module) < 0 ||
1100                 pa_tagstruct_gets(t, &i.argument) < 0) {
1101                 pa_context_fail(o->context, PA_ERR_PROTOCOL);
1102                 goto finish;
1103             }
1104
1105             if (o->callback) {
1106                 pa_autoload_info_cb_t cb = (pa_autoload_info_cb_t) o->callback;
1107                 cb(o->context, &i, 0, o->userdata);
1108             }
1109         }
1110     }
1111
1112     if (o->callback) {
1113         pa_autoload_info_cb_t cb = (pa_autoload_info_cb_t) o->callback;
1114         cb(o->context, NULL, eol, o->userdata);
1115     }
1116
1117 finish:
1118     pa_operation_done(o);
1119     pa_operation_unref(o);
1120 }
1121
1122 pa_operation* pa_context_get_autoload_info_by_name(pa_context *c, const char *name, pa_autoload_type_t type, pa_autoload_info_cb_t cb, void *userdata) {
1123     pa_tagstruct *t;
1124     pa_operation *o;
1125     uint32_t tag;
1126
1127     assert(c);
1128     assert(c->ref >= 1);
1129     assert(cb);
1130
1131     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
1132     PA_CHECK_VALIDITY_RETURN_NULL(c, name && *name, PA_ERR_INVALID);
1133     PA_CHECK_VALIDITY_RETURN_NULL(c, type == PA_AUTOLOAD_SINK || type == PA_AUTOLOAD_SOURCE, PA_ERR_INVALID);
1134
1135     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
1136
1137     t = pa_tagstruct_command(c, PA_COMMAND_GET_AUTOLOAD_INFO, &tag);
1138     pa_tagstruct_puts(t, name);
1139     pa_tagstruct_putu32(t, type);
1140     pa_pstream_send_tagstruct(c->pstream, t);
1141     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_autoload_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
1142
1143     return o;
1144 }
1145
1146 pa_operation* pa_context_get_autoload_info_by_index(pa_context *c, uint32_t idx, pa_autoload_info_cb_t cb, void *userdata) {
1147     pa_tagstruct *t;
1148     pa_operation *o;
1149     uint32_t tag;
1150
1151     assert(c);
1152     assert(c->ref >= 1);
1153     assert(cb);
1154
1155     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
1156     PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
1157
1158     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
1159
1160     t = pa_tagstruct_command(c, PA_COMMAND_GET_AUTOLOAD_INFO, &tag);
1161     pa_tagstruct_putu32(t, idx);
1162     pa_pstream_send_tagstruct(c->pstream, t);
1163     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_get_autoload_info_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
1164
1165     return o;
1166 }
1167
1168 pa_operation* pa_context_get_autoload_info_list(pa_context *c, pa_autoload_info_cb_t cb, void *userdata) {
1169     return pa_context_send_simple_command(c, PA_COMMAND_GET_AUTOLOAD_INFO_LIST, context_get_autoload_info_callback, (pa_operation_cb_t) cb, userdata);
1170 }
1171
1172 pa_operation* pa_context_add_autoload(pa_context *c, const char *name, pa_autoload_type_t type, const char *module, const char*argument, pa_context_index_cb_t cb, void* userdata) {
1173     pa_operation *o;
1174     pa_tagstruct *t;
1175     uint32_t tag;
1176
1177     assert(c);
1178     assert(c->ref >= 1);
1179
1180     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
1181     PA_CHECK_VALIDITY_RETURN_NULL(c, name && *name, PA_ERR_INVALID);
1182     PA_CHECK_VALIDITY_RETURN_NULL(c, type == PA_AUTOLOAD_SINK || type == PA_AUTOLOAD_SOURCE, PA_ERR_INVALID);
1183     PA_CHECK_VALIDITY_RETURN_NULL(c, module && *module, PA_ERR_INVALID);
1184
1185     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
1186
1187     t = pa_tagstruct_command(c, PA_COMMAND_ADD_AUTOLOAD, &tag);
1188     pa_tagstruct_puts(t, name);
1189     pa_tagstruct_putu32(t, type);
1190     pa_tagstruct_puts(t, module);
1191     pa_tagstruct_puts(t, argument);
1192     pa_pstream_send_tagstruct(c->pstream, t);
1193     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, context_index_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
1194
1195     return o;
1196 }
1197
1198 pa_operation* pa_context_remove_autoload_by_name(pa_context *c, const char *name, pa_autoload_type_t type, pa_context_success_cb_t cb, void* userdata) {
1199     pa_operation *o;
1200     pa_tagstruct *t;
1201     uint32_t tag;
1202
1203     assert(c);
1204     assert(c->ref >= 1);
1205
1206     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
1207     PA_CHECK_VALIDITY_RETURN_NULL(c, name && *name, PA_ERR_INVALID);
1208     PA_CHECK_VALIDITY_RETURN_NULL(c, type == PA_AUTOLOAD_SINK || type == PA_AUTOLOAD_SOURCE, PA_ERR_INVALID);
1209
1210     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
1211
1212     t = pa_tagstruct_command(c, PA_COMMAND_REMOVE_AUTOLOAD, &tag);
1213     pa_tagstruct_puts(t, name);
1214     pa_tagstruct_putu32(t, type);
1215     pa_pstream_send_tagstruct(c->pstream, t);
1216     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
1217
1218     return o;
1219 }
1220
1221 pa_operation* pa_context_remove_autoload_by_index(pa_context *c, uint32_t idx, pa_context_success_cb_t cb, void* userdata) {
1222     pa_operation *o;
1223     pa_tagstruct *t;
1224     uint32_t tag;
1225
1226     assert(c);
1227     assert(c->ref >= 1);
1228
1229     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
1230     PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
1231
1232     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
1233
1234     t = pa_tagstruct_command(c, PA_COMMAND_REMOVE_AUTOLOAD, &tag);
1235     pa_tagstruct_putu32(t, idx);
1236     pa_pstream_send_tagstruct(c->pstream, t);
1237     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
1238
1239     return o;
1240 }
1241
1242 pa_operation* pa_context_move_sink_input_by_name(pa_context *c, uint32_t idx, char *sink_name, pa_context_success_cb_t cb, void* userdata) {
1243     pa_operation *o;
1244     pa_tagstruct *t;
1245     uint32_t tag;
1246
1247     assert(c);
1248     assert(c->ref >= 1);
1249
1250     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
1251     PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 10, PA_ERR_NOTSUPPORTED);
1252     PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
1253     PA_CHECK_VALIDITY_RETURN_NULL(c, sink_name && *sink_name, PA_ERR_INVALID);
1254
1255     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
1256
1257     t = pa_tagstruct_command(c, PA_COMMAND_MOVE_SINK_INPUT, &tag);
1258     pa_tagstruct_putu32(t, idx);
1259     pa_tagstruct_putu32(t, PA_INVALID_INDEX);
1260     pa_tagstruct_puts(t, sink_name);
1261     pa_pstream_send_tagstruct(c->pstream, t);
1262     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
1263
1264     return o;
1265 }
1266
1267 pa_operation* pa_context_move_sink_input_by_index(pa_context *c, uint32_t idx, uint32_t sink_idx, pa_context_success_cb_t cb, void* userdata) {
1268     pa_operation *o;
1269     pa_tagstruct *t;
1270     uint32_t tag;
1271
1272     assert(c);
1273     assert(c->ref >= 1);
1274
1275     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
1276     PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 10, PA_ERR_NOTSUPPORTED);
1277     PA_CHECK_VALIDITY_RETURN_NULL(c, idx != PA_INVALID_INDEX, PA_ERR_INVALID);
1278     PA_CHECK_VALIDITY_RETURN_NULL(c, sink_idx != PA_INVALID_INDEX, PA_ERR_INVALID);
1279
1280     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
1281
1282     t = pa_tagstruct_command(c, PA_COMMAND_MOVE_SINK_INPUT, &tag);
1283     pa_tagstruct_putu32(t, idx);
1284     pa_tagstruct_putu32(t, sink_idx);
1285     pa_tagstruct_puts(t, NULL);
1286     pa_pstream_send_tagstruct(c->pstream, t);
1287     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
1288
1289     return o;
1290 }