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

   1 /***
   2   This file is part of PulseAudio.
   3
   4   Copyright 2004-2006 Lennart Poettering
   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 2.1 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 <stdlib.h>
  27 #include <stdio.h>
  28
  29 #include <pulse/utf8.h>
  30 #include <pulse/fork-detect.h>
  31
  32 #include <pulsecore/pstream-util.h>
  33 #include <pulsecore/macro.h>
  34 #include <pulsecore/proplist-util.h>
  35
  36 #include "internal.h"
  37 #include "scache.h"
  38
  39 int pa_stream_connect_upload(pa_stream *s, size_t length) {
  40     pa_tagstruct *t;
  41     uint32_t tag;
  42     const char *name;
  43
  44     pa_assert(s);
  45     pa_assert(PA_REFCNT_VALUE(s) >= 1);
  46
  47     PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
  48     PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_UNCONNECTED, PA_ERR_BADSTATE);
  49     PA_CHECK_VALIDITY(s->context, length > 0, PA_ERR_INVALID);
  50     PA_CHECK_VALIDITY(s->context, length == (size_t) (uint32_t) length, PA_ERR_INVALID);
  51     PA_CHECK_VALIDITY(s->context, s->context->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
  52
  53     if (!(name = pa_proplist_gets(s->proplist, PA_PROP_EVENT_ID)))
  54         name = pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME);
  55
  56     PA_CHECK_VALIDITY(s->context, name && *name && pa_utf8_valid(name), PA_ERR_INVALID);
  57
  58     pa_stream_ref(s);
  59
  60     s->direction = PA_STREAM_UPLOAD;
  61     s->flags = 0;
  62
  63     t = pa_tagstruct_command(s->context, PA_COMMAND_CREATE_UPLOAD_STREAM, &tag);
  64
  65     pa_tagstruct_puts(t, name);
  66     pa_tagstruct_put_sample_spec(t, &s->sample_spec);
  67     pa_tagstruct_put_channel_map(t, &s->channel_map);
  68     pa_tagstruct_putu32(t, (uint32_t) length);
  69
  70     if (s->context->version >= 13)
  71         pa_tagstruct_put_proplist(t, s->proplist);
  72
  73     pa_pstream_send_tagstruct(s->context->pstream, t);
  74     pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_create_stream_callback, s, NULL);
  75
  76     pa_stream_set_state(s, PA_STREAM_CREATING);
  77
  78     pa_stream_unref(s);
  79     return 0;
  80 }
  81
  82 int pa_stream_finish_upload(pa_stream *s) {
  83     pa_tagstruct *t;
  84     uint32_t tag;
  85
  86     pa_assert(s);
  87     pa_assert(PA_REFCNT_VALUE(s) >= 1);
  88
  89     PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
  90     PA_CHECK_VALIDITY(s->context, s->channel_valid, PA_ERR_BADSTATE);
  91     PA_CHECK_VALIDITY(s->context, s->context->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
  92
  93     pa_stream_ref(s);
  94
  95     t = pa_tagstruct_command(s->context, PA_COMMAND_FINISH_UPLOAD_STREAM, &tag);
  96     pa_tagstruct_putu32(t, s->channel);
  97     pa_pstream_send_tagstruct(s->context->pstream, t);
  98     pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_disconnect_callback, s, NULL);
  99
 100     pa_stream_unref(s);
 101     return 0;
 102 }
 103
 104 static void play_sample_ack_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
 105     pa_operation *o = userdata;
 106     int success = 1;
 107     uint32_t idx = PA_INVALID_INDEX;
 108
 109     pa_assert(pd);
 110     pa_assert(o);
 111     pa_assert(PA_REFCNT_VALUE(o) >= 1);
 112
 113     if (!o->context)
 114         goto finish;
 115
 116     if (command != PA_COMMAND_REPLY) {
 117         if (pa_context_handle_error(o->context, command, t, FALSE) < 0)
 118             goto finish;
 119
 120         success = 0;
 121     } else if ((o->context->version >= 13 && pa_tagstruct_getu32(t, &idx) < 0) ||
 122                !pa_tagstruct_eof(t)) {
 123         pa_context_fail(o->context, PA_ERR_PROTOCOL);
 124         goto finish;
 125     } else if (o->context->version >= 13 && idx == PA_INVALID_INDEX)
 126         success = 0;
 127
 128     if (o->callback) {
 129         pa_context_success_cb_t cb = (pa_context_success_cb_t) o->callback;
 130         cb(o->context, success, o->userdata);
 131     }
 132
 133 finish:
 134     pa_operation_done(o);
 135     pa_operation_unref(o);
 136 }
 137
 138 static void play_sample_with_proplist_ack_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
 139     pa_operation *o = userdata;
 140     uint32_t idx;
 141
 142     pa_assert(pd);
 143     pa_assert(o);
 144     pa_assert(PA_REFCNT_VALUE(o) >= 1);
 145
 146     if (!o->context)
 147         goto finish;
 148
 149     if (command != PA_COMMAND_REPLY) {
 150         if (pa_context_handle_error(o->context, command, t, FALSE) < 0)
 151             goto finish;
 152
 153         idx = PA_INVALID_INDEX;
 154     } else if (pa_tagstruct_getu32(t, &idx) < 0 ||
 155                !pa_tagstruct_eof(t)) {
 156         pa_context_fail(o->context, PA_ERR_PROTOCOL);
 157         goto finish;
 158     }
 159
 160     if (o->callback) {
 161         pa_context_play_sample_cb_t cb = (pa_context_play_sample_cb_t) o->callback;
 162         cb(o->context, idx, o->userdata);
 163     }
 164
 165 finish:
 166     pa_operation_done(o);
 167     pa_operation_unref(o);
 168 }
 169
 170 pa_operation *pa_context_play_sample(pa_context *c, const char *name, const char *dev, pa_volume_t volume, pa_context_success_cb_t cb, void *userdata) {
 171     pa_operation *o;
 172     pa_tagstruct *t;
 173     uint32_t tag;
 174
 175     pa_assert(c);
 176     pa_assert(PA_REFCNT_VALUE(c) >= 1);
 177
 178     PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
 179     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 180     PA_CHECK_VALIDITY_RETURN_NULL(c, name && *name, PA_ERR_INVALID);
 181     PA_CHECK_VALIDITY_RETURN_NULL(c, !dev || *dev, PA_ERR_INVALID);
 182
 183     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 184
 185     if (!dev)
 186         dev = c->conf->default_sink;
 187
 188     t = pa_tagstruct_command(c, PA_COMMAND_PLAY_SAMPLE, &tag);
 189     pa_tagstruct_putu32(t, PA_INVALID_INDEX);
 190     pa_tagstruct_puts(t, dev);
 191
 192     if (!PA_VOLUME_IS_VALID(volume) && c->version < 15)
 193         volume = PA_VOLUME_NORM;
 194
 195     pa_tagstruct_putu32(t, volume);
 196     pa_tagstruct_puts(t, name);
 197
 198     if (c->version >= 13) {
 199         pa_proplist *p = pa_proplist_new();
 200         pa_tagstruct_put_proplist(t, p);
 201         pa_proplist_free(p);
 202     }
 203
 204     pa_pstream_send_tagstruct(c->pstream, t);
 205     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, play_sample_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 206
 207     return o;
 208 }
 209
 210 pa_operation *pa_context_play_sample_with_proplist(pa_context *c, const char *name, const char *dev, pa_volume_t volume, pa_proplist *p, pa_context_play_sample_cb_t cb, void *userdata) {
 211     pa_operation *o;
 212     pa_tagstruct *t;
 213     uint32_t tag;
 214
 215     pa_assert(c);
 216     pa_assert(PA_REFCNT_VALUE(c) >= 1);
 217
 218     PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
 219     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 220     PA_CHECK_VALIDITY_RETURN_NULL(c, name && *name, PA_ERR_INVALID);
 221     PA_CHECK_VALIDITY_RETURN_NULL(c, !dev || *dev, PA_ERR_INVALID);
 222     PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 13, PA_ERR_NOTSUPPORTED);
 223
 224     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 225
 226     if (!dev)
 227         dev = c->conf->default_sink;
 228
 229     t = pa_tagstruct_command(c, PA_COMMAND_PLAY_SAMPLE, &tag);
 230     pa_tagstruct_putu32(t, PA_INVALID_INDEX);
 231     pa_tagstruct_puts(t, dev);
 232
 233     if (!PA_VOLUME_IS_VALID(volume) && c->version < 15)
 234         volume = PA_VOLUME_NORM;
 235
 236     pa_tagstruct_putu32(t, volume);
 237     pa_tagstruct_puts(t, name);
 238
 239     if (p)
 240         pa_tagstruct_put_proplist(t, p);
 241     else {
 242         p = pa_proplist_new();
 243         pa_tagstruct_put_proplist(t, p);
 244         pa_proplist_free(p);
 245     }
 246
 247     pa_pstream_send_tagstruct(c->pstream, t);
 248     pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, play_sample_with_proplist_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
 249
 250     return o;
 251 }
 252
 253 pa_operation* pa_context_remove_sample(pa_context *c, const char *name, pa_context_success_cb_t cb, void *userdata) {
 254     pa_operation *o;
 255     pa_tagstruct *t;
 256     uint32_t tag;
 257
 258     pa_assert(c);
 259     pa_assert(PA_REFCNT_VALUE(c) >= 1);
 260
 261     PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
 262     PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
 263     PA_CHECK_VALIDITY_RETURN_NULL(c, name && *name, PA_ERR_INVALID);
 264
 265     o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
 266
 267     t = pa_tagstruct_command(c, PA_COMMAND_REMOVE_SAMPLE, &tag);
 268     pa_tagstruct_puts(t, name);
 269
 270     pa_pstream_send_tagstruct(c->pstream, t);
 271     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);
 272
 273     return o;
 274 }