xref: /third_party/pulseaudio/src/pulse/scache.c (revision 53a5a1b3) 
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, see <http://www.gnu.org/licenses/>.
18***/
19
20#ifdef HAVE_CONFIG_H
21#include <config.h>
22#endif
23
24#include <stdlib.h>
25#include <stdio.h>
26
27#include <pulse/utf8.h>
28#include <pulse/fork-detect.h>
29
30#include <pulsecore/pstream-util.h>
31#include <pulsecore/macro.h>
32#include <pulsecore/proplist-util.h>
33
34#include "internal.h"
35#include "scache.h"
36
37int pa_stream_connect_upload(pa_stream *s, size_t length) {
38    pa_tagstruct *t;
39    uint32_t tag;
40    const char *name;
41
42    pa_assert(s);
43    pa_assert(PA_REFCNT_VALUE(s) >= 1);
44
45    PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
46    PA_CHECK_VALIDITY(s->context, s->state == PA_STREAM_UNCONNECTED, PA_ERR_BADSTATE);
47    PA_CHECK_VALIDITY(s->context, length > 0, PA_ERR_INVALID);
48    PA_CHECK_VALIDITY(s->context, length == (size_t) (uint32_t) length, PA_ERR_INVALID);
49    PA_CHECK_VALIDITY(s->context, s->context->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
50
51    if (!(name = pa_proplist_gets(s->proplist, PA_PROP_EVENT_ID)))
52        name = pa_proplist_gets(s->proplist, PA_PROP_MEDIA_NAME);
53
54    PA_CHECK_VALIDITY(s->context, name && *name && pa_utf8_valid(name), PA_ERR_INVALID);
55
56    pa_stream_ref(s);
57
58    s->direction = PA_STREAM_UPLOAD;
59    s->flags = 0;
60
61    t = pa_tagstruct_command(s->context, PA_COMMAND_CREATE_UPLOAD_STREAM, &tag);
62
63    pa_tagstruct_puts(t, name);
64    pa_tagstruct_put_sample_spec(t, &s->sample_spec);
65    pa_tagstruct_put_channel_map(t, &s->channel_map);
66    pa_tagstruct_putu32(t, (uint32_t) length);
67
68    if (s->context->version >= 13)
69        pa_tagstruct_put_proplist(t, s->proplist);
70
71    pa_pstream_send_tagstruct(s->context->pstream, t);
72    pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_create_stream_callback, s, NULL);
73
74    pa_stream_set_state(s, PA_STREAM_CREATING);
75
76    pa_stream_unref(s);
77    return 0;
78}
79
80int pa_stream_finish_upload(pa_stream *s) {
81    pa_tagstruct *t;
82    uint32_t tag;
83
84    pa_assert(s);
85    pa_assert(PA_REFCNT_VALUE(s) >= 1);
86
87    PA_CHECK_VALIDITY(s->context, !pa_detect_fork(), PA_ERR_FORKED);
88    PA_CHECK_VALIDITY(s->context, s->channel_valid, PA_ERR_BADSTATE);
89    PA_CHECK_VALIDITY(s->context, s->context->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
90
91    pa_stream_ref(s);
92
93    t = pa_tagstruct_command(s->context, PA_COMMAND_FINISH_UPLOAD_STREAM, &tag);
94    pa_tagstruct_putu32(t, s->channel);
95    pa_pstream_send_tagstruct(s->context->pstream, t);
96    pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_disconnect_callback, s, NULL);
97
98    pa_stream_unref(s);
99    return 0;
100}
101
102static void play_sample_ack_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
103    pa_operation *o = userdata;
104    int success = 1;
105    uint32_t idx = PA_INVALID_INDEX;
106
107    pa_assert(pd);
108    pa_assert(o);
109    pa_assert(PA_REFCNT_VALUE(o) >= 1);
110
111    if (!o->context)
112        goto finish;
113
114    if (command != PA_COMMAND_REPLY) {
115        if (pa_context_handle_error(o->context, command, t, false) < 0)
116            goto finish;
117
118        success = 0;
119    } else if ((o->context->version >= 13 && pa_tagstruct_getu32(t, &idx) < 0) ||
120               !pa_tagstruct_eof(t)) {
121        pa_context_fail(o->context, PA_ERR_PROTOCOL);
122        goto finish;
123    } else if (o->context->version >= 13 && idx == PA_INVALID_INDEX)
124        success = 0;
125
126    if (o->callback) {
127        pa_context_success_cb_t cb = (pa_context_success_cb_t) o->callback;
128        cb(o->context, success, o->userdata);
129    }
130
131finish:
132    pa_operation_done(o);
133    pa_operation_unref(o);
134}
135
136static void play_sample_with_proplist_ack_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) {
137    pa_operation *o = userdata;
138    uint32_t idx;
139
140    pa_assert(pd);
141    pa_assert(o);
142    pa_assert(PA_REFCNT_VALUE(o) >= 1);
143
144    if (!o->context)
145        goto finish;
146
147    if (command != PA_COMMAND_REPLY) {
148        if (pa_context_handle_error(o->context, command, t, false) < 0)
149            goto finish;
150
151        idx = PA_INVALID_INDEX;
152    } else if (pa_tagstruct_getu32(t, &idx) < 0 ||
153               !pa_tagstruct_eof(t)) {
154        pa_context_fail(o->context, PA_ERR_PROTOCOL);
155        goto finish;
156    }
157
158    if (o->callback) {
159        pa_context_play_sample_cb_t cb = (pa_context_play_sample_cb_t) o->callback;
160        cb(o->context, idx, o->userdata);
161    }
162
163finish:
164    pa_operation_done(o);
165    pa_operation_unref(o);
166}
167
168pa_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) {
169    pa_operation *o;
170    pa_tagstruct *t;
171    uint32_t tag;
172
173    pa_assert(c);
174    pa_assert(PA_REFCNT_VALUE(c) >= 1);
175
176    PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
177    PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
178    PA_CHECK_VALIDITY_RETURN_NULL(c, name && *name, PA_ERR_INVALID);
179    PA_CHECK_VALIDITY_RETURN_NULL(c, !dev || *dev, PA_ERR_INVALID);
180
181    o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
182
183    if (!dev)
184        dev = c->conf->default_sink;
185
186    t = pa_tagstruct_command(c, PA_COMMAND_PLAY_SAMPLE, &tag);
187    pa_tagstruct_putu32(t, PA_INVALID_INDEX);
188    pa_tagstruct_puts(t, dev);
189
190    if (!PA_VOLUME_IS_VALID(volume) && c->version < 15)
191        volume = PA_VOLUME_NORM;
192
193    pa_tagstruct_putu32(t, volume);
194    pa_tagstruct_puts(t, name);
195
196    if (c->version >= 13) {
197        pa_proplist *p = pa_proplist_new();
198        pa_tagstruct_put_proplist(t, p);
199        pa_proplist_free(p);
200    }
201
202    pa_pstream_send_tagstruct(c->pstream, t);
203    pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, play_sample_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
204
205    return o;
206}
207
208pa_operation *pa_context_play_sample_with_proplist(pa_context *c, const char *name, const char *dev, pa_volume_t volume, const pa_proplist *p, pa_context_play_sample_cb_t cb, void *userdata) {
209    pa_operation *o;
210    pa_tagstruct *t;
211    uint32_t tag;
212
213    pa_assert(c);
214    pa_assert(PA_REFCNT_VALUE(c) >= 1);
215
216    PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
217    PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
218    PA_CHECK_VALIDITY_RETURN_NULL(c, name && *name, PA_ERR_INVALID);
219    PA_CHECK_VALIDITY_RETURN_NULL(c, !dev || *dev, PA_ERR_INVALID);
220    PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 13, PA_ERR_NOTSUPPORTED);
221
222    o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
223
224    if (!dev)
225        dev = c->conf->default_sink;
226
227    t = pa_tagstruct_command(c, PA_COMMAND_PLAY_SAMPLE, &tag);
228    pa_tagstruct_putu32(t, PA_INVALID_INDEX);
229    pa_tagstruct_puts(t, dev);
230
231    if (!PA_VOLUME_IS_VALID(volume) && c->version < 15)
232        volume = PA_VOLUME_NORM;
233
234    pa_tagstruct_putu32(t, volume);
235    pa_tagstruct_puts(t, name);
236
237    if (p)
238        pa_tagstruct_put_proplist(t, p);
239    else {
240        pa_proplist *empty_proplist = pa_proplist_new();
241        pa_tagstruct_put_proplist(t, empty_proplist);
242        pa_proplist_free(empty_proplist);
243    }
244
245    pa_pstream_send_tagstruct(c->pstream, t);
246    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);
247
248    return o;
249}
250
251pa_operation* pa_context_remove_sample(pa_context *c, const char *name, pa_context_success_cb_t cb, void *userdata) {
252    pa_operation *o;
253    pa_tagstruct *t;
254    uint32_t tag;
255
256    pa_assert(c);
257    pa_assert(PA_REFCNT_VALUE(c) >= 1);
258
259    PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED);
260    PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE);
261    PA_CHECK_VALIDITY_RETURN_NULL(c, name && *name, PA_ERR_INVALID);
262
263    o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata);
264
265    t = pa_tagstruct_command(c, PA_COMMAND_REMOVE_SAMPLE, &tag);
266    pa_tagstruct_puts(t, name);
267
268    pa_pstream_send_tagstruct(c->pstream, t);
269    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);
270
271    return o;
272}
273