1 | //context.c: |
---|
2 | |
---|
3 | /* |
---|
4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010 |
---|
5 | * The code (may) include prototypes and comments (and maybe |
---|
6 | * other code fragements) from libpulse*. They are mostly copyrighted by: |
---|
7 | * Lennart Poettering <poettering@users.sourceforge.net> and |
---|
8 | * Pierre Ossman <drzeus@drzeus.cx> |
---|
9 | * |
---|
10 | * This file is part of libroarpulse a part of RoarAudio, |
---|
11 | * a cross-platform sound system for both, home and professional use. |
---|
12 | * See README for details. |
---|
13 | * |
---|
14 | * This file is free software; you can redistribute it and/or modify |
---|
15 | * it under the terms of the GNU General Public License version 3 |
---|
16 | * as published by the Free Software Foundation. |
---|
17 | * |
---|
18 | * RoarAudio is distributed in the hope that it will be useful, |
---|
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
21 | * GNU General Public License for more details. |
---|
22 | * |
---|
23 | * You should have received a copy of the GNU General Public License |
---|
24 | * along with this software; see the file COPYING. If not, write to |
---|
25 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
---|
26 | * |
---|
27 | * NOTE for everyone want's to change something and send patches: |
---|
28 | * read README and HACKING! There a addition information on |
---|
29 | * the license of this document you need to read before you send |
---|
30 | * any patches. |
---|
31 | * |
---|
32 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
---|
33 | * or libpulse*: |
---|
34 | * The libs libroaresd, libroararts and libroarpulse link this libroar |
---|
35 | * and are therefore GPL. Because of this it may be illigal to use |
---|
36 | * them with any software that uses libesd, libartsc or libpulse*. |
---|
37 | */ |
---|
38 | |
---|
39 | #include <libroarpulse/libroarpulse.h> |
---|
40 | |
---|
41 | struct _roar_pa_cb_st { |
---|
42 | union { |
---|
43 | pa_context_success_cb_t scb; |
---|
44 | pa_context_notify_cb_t ncb; |
---|
45 | } cb; |
---|
46 | void * userdata; |
---|
47 | }; |
---|
48 | |
---|
49 | #define _call_cbs(x,c,s) ((x).cb.scb == NULL ? (void)0 : (x).cb.scb((c), (s), (x).userdata)) |
---|
50 | #define _call_cbn(x,c) ((x).cb.ncb == NULL ? (void)0 : (x).cb.ncb((c), (x).userdata)) |
---|
51 | |
---|
52 | struct pa_context { |
---|
53 | size_t refc; |
---|
54 | struct roar_connection con; |
---|
55 | char * server; |
---|
56 | char * name; |
---|
57 | int state; |
---|
58 | struct { |
---|
59 | struct _roar_pa_cb_st set_name; |
---|
60 | struct _roar_pa_cb_st state_change; |
---|
61 | } cb; |
---|
62 | }; |
---|
63 | |
---|
64 | // older versions: |
---|
65 | typedef void pa_proplist; |
---|
66 | pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char *name, pa_proplist *proplist); |
---|
67 | |
---|
68 | void pa_context_set_state(pa_context *c, pa_context_state_t st); |
---|
69 | |
---|
70 | pa_context *pa_context_new(pa_mainloop_api *mainloop, const char *name) { |
---|
71 | return pa_context_new_with_proplist(mainloop, name, NULL); |
---|
72 | } |
---|
73 | |
---|
74 | pa_context *pa_context_new_with_proplist(pa_mainloop_api *mainloop, const char *name, pa_proplist *proplist) { |
---|
75 | pa_context * c; |
---|
76 | |
---|
77 | if ( proplist != NULL ) |
---|
78 | return NULL; |
---|
79 | |
---|
80 | if ( (c = roar_mm_malloc(sizeof(pa_context))) == NULL ) |
---|
81 | return NULL; |
---|
82 | |
---|
83 | memset(c, 0, sizeof(pa_context)); |
---|
84 | |
---|
85 | c->refc = 1; |
---|
86 | |
---|
87 | c->state = PA_CONTEXT_UNCONNECTED; |
---|
88 | |
---|
89 | return NULL; |
---|
90 | } |
---|
91 | |
---|
92 | static void _context_free(pa_context *c) { |
---|
93 | pa_context_disconnect(c); |
---|
94 | |
---|
95 | if ( c->server != NULL ) |
---|
96 | roar_mm_free(c->server); |
---|
97 | |
---|
98 | if ( c->name != NULL ) |
---|
99 | roar_mm_free(c->name); |
---|
100 | |
---|
101 | roar_mm_free(c); |
---|
102 | } |
---|
103 | |
---|
104 | pa_context* pa_context_ref(pa_context *c) { |
---|
105 | c->refc++; |
---|
106 | return c; |
---|
107 | } |
---|
108 | |
---|
109 | void pa_context_unref(pa_context *c) { |
---|
110 | c->refc--; |
---|
111 | |
---|
112 | if ( c->refc < 1 ) |
---|
113 | _context_free(c); |
---|
114 | } |
---|
115 | |
---|
116 | int pa_context_connect( |
---|
117 | pa_context *c, |
---|
118 | const char *server, |
---|
119 | pa_context_flags_t flags, |
---|
120 | const pa_spawn_api *api) { |
---|
121 | |
---|
122 | if ( c == NULL ) |
---|
123 | return -1; |
---|
124 | |
---|
125 | if ( c->state != PA_CONTEXT_UNCONNECTED ) |
---|
126 | return -1; |
---|
127 | |
---|
128 | // we do currently not support to spawn a daemon, so we ignore flags and api. |
---|
129 | |
---|
130 | server = roar_pa_find_server((char*)server); |
---|
131 | |
---|
132 | if ( roar_simple_connect(&(c->con), (char*)server, |
---|
133 | c->name != NULL ? c->name : "libroarpulse [pa_context_connect()]") == -1 ) { |
---|
134 | pa_context_set_state(c, PA_CONTEXT_FAILED); |
---|
135 | return -1; |
---|
136 | } |
---|
137 | |
---|
138 | c->server = roar_mm_strdup(server); |
---|
139 | pa_context_set_state(c, PA_CONTEXT_READY); |
---|
140 | |
---|
141 | _call_cbs(c->cb.set_name, c, 1); |
---|
142 | |
---|
143 | return 0; |
---|
144 | } |
---|
145 | |
---|
146 | void pa_context_disconnect(pa_context *c) { |
---|
147 | if ( c == NULL ) |
---|
148 | return; |
---|
149 | |
---|
150 | if ( c->state != PA_CONTEXT_READY ) |
---|
151 | return; |
---|
152 | |
---|
153 | roar_disconnect(&(c->con)); |
---|
154 | |
---|
155 | pa_context_set_state(c, PA_CONTEXT_TERMINATED); |
---|
156 | } |
---|
157 | |
---|
158 | |
---|
159 | |
---|
160 | /** Set a callback function that is called whenever the context status changes */ |
---|
161 | void pa_context_set_state_callback(pa_context *c, pa_context_notify_cb_t cb, void *userdata) { |
---|
162 | if ( c == NULL ) |
---|
163 | return; |
---|
164 | |
---|
165 | c->cb.state_change.cb.ncb = cb; |
---|
166 | c->cb.state_change.userdata = userdata; |
---|
167 | } |
---|
168 | |
---|
169 | void pa_context_set_state(pa_context *c, pa_context_state_t st) { |
---|
170 | if ( c == NULL ) |
---|
171 | return; |
---|
172 | |
---|
173 | c->state = st; |
---|
174 | |
---|
175 | _call_cbn(c->cb.state_change, c); |
---|
176 | } |
---|
177 | |
---|
178 | /** Return the error number of the last failed operation */ |
---|
179 | int pa_context_errno(pa_context *c); |
---|
180 | |
---|
181 | /** Return non-zero if some data is pending to be written to the connection */ |
---|
182 | int pa_context_is_pending(pa_context *c) { |
---|
183 | return 0; |
---|
184 | } |
---|
185 | |
---|
186 | /** Return the current context status */ |
---|
187 | pa_context_state_t pa_context_get_state(pa_context *c) { |
---|
188 | if ( c == NULL ) |
---|
189 | return PA_CONTEXT_FAILED; |
---|
190 | |
---|
191 | return c->state; |
---|
192 | } |
---|
193 | |
---|
194 | /** Drain the context. If there is nothing to drain, the function returns NULL */ |
---|
195 | pa_operation* pa_context_drain(pa_context *c, pa_context_notify_cb_t cb, void *userdata) { |
---|
196 | |
---|
197 | if ( cb != NULL ) |
---|
198 | cb(c, userdata); |
---|
199 | |
---|
200 | return NULL; |
---|
201 | } |
---|
202 | |
---|
203 | /** Tell the daemon to exit. The returned operation is unlikely to |
---|
204 | * complete succesfully, since the daemon probably died before |
---|
205 | * returning a success notification */ |
---|
206 | pa_operation* pa_context_exit_daemon(pa_context *c, pa_context_success_cb_t cb, void *userdata); |
---|
207 | |
---|
208 | /** Set the name of the default sink. \since 0.4 */ |
---|
209 | pa_operation* pa_context_set_default_sink(pa_context *c, const char *name, pa_context_success_cb_t cb, void *userdata) { |
---|
210 | if ( cb != NULL ) |
---|
211 | cb(c, 0, userdata); |
---|
212 | |
---|
213 | return NULL; |
---|
214 | } |
---|
215 | |
---|
216 | /** Set the name of the default source. \since 0.4 */ |
---|
217 | pa_operation* pa_context_set_default_source(pa_context *c, const char *name, pa_context_success_cb_t cb, void *userdata) { |
---|
218 | if ( cb != NULL ) |
---|
219 | cb(c, 0, userdata); |
---|
220 | |
---|
221 | return NULL; |
---|
222 | } |
---|
223 | |
---|
224 | /** Returns 1 when the connection is to a local daemon. Returns negative when no connection has been made yet. \since 0.5 */ |
---|
225 | int pa_context_is_local(pa_context *c) { |
---|
226 | if ( c == NULL ) |
---|
227 | return -1; |
---|
228 | |
---|
229 | if ( c->state != PA_CONTEXT_READY ) |
---|
230 | return -1; |
---|
231 | |
---|
232 | // how is /local/ defined? |
---|
233 | return 0; |
---|
234 | } |
---|
235 | |
---|
236 | /** Set a different application name for context on the server. \since 0.5 */ |
---|
237 | pa_operation* pa_context_set_name(pa_context *c, const char *name, pa_context_success_cb_t cb, void *userdata) { |
---|
238 | if ( c == NULL ) |
---|
239 | return NULL; |
---|
240 | |
---|
241 | if ( c->state != PA_CONTEXT_UNCONNECTED ) |
---|
242 | return NULL; |
---|
243 | |
---|
244 | c->name = roar_mm_strdup(name); |
---|
245 | c->cb.set_name.cb.scb = cb; |
---|
246 | c->cb.set_name.userdata = userdata; |
---|
247 | |
---|
248 | return NULL; |
---|
249 | } |
---|
250 | |
---|
251 | /** Return the server name this context is connected to. \since 0.7 */ |
---|
252 | const char* pa_context_get_server(pa_context *c) { |
---|
253 | if ( c == NULL ) |
---|
254 | return NULL; |
---|
255 | |
---|
256 | return c->server; |
---|
257 | } |
---|
258 | |
---|
259 | /** Return the protocol version of the library. \since 0.8 */ |
---|
260 | uint32_t pa_context_get_protocol_version(pa_context *c) { |
---|
261 | return 0; |
---|
262 | } |
---|
263 | |
---|
264 | /** Return the protocol version of the connected server. \since 0.8 */ |
---|
265 | uint32_t pa_context_get_server_protocol_version(pa_context *c) { |
---|
266 | return 0; |
---|
267 | } |
---|
268 | |
---|
269 | |
---|
270 | //ll |
---|