source: roaraudio/libroar/vio_stream.c @ 5419:655954f5b684

Last change on this file since 5419:655954f5b684 was 5419:655954f5b684, checked in by phi, 10 years ago

fixed some compiler warnings

File size: 11.9 KB
Line 
1//vio_stream.c:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010-2012
5 *
6 *  This file is part of libroar a part of RoarAudio,
7 *  a cross-platform sound system for both, home and professional use.
8 *  See README for details.
9 *
10 *  This file is free software; you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License version 3
12 *  as published by the Free Software Foundation.
13 *
14 *  libroar is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU General Public License for more details.
18 *
19 *  You should have received a copy of the GNU General Public License
20 *  along with this software; see the file COPYING.  If not, write to
21 *  the Free Software Foundation, 51 Franklin Street, Fifth Floor,
22 *  Boston, MA 02110-1301, USA.
23 *
24 *  NOTE for everyone want's to change something and send patches:
25 *  read README and HACKING! There a addition information on
26 *  the license of this document you need to read before you send
27 *  any patches.
28 *
29 *  NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc
30 *  or libpulse*:
31 *  The libs libroaresd, libroararts and libroarpulse link this lib
32 *  and are therefore GPL. Because of this it may be illigal to use
33 *  them with any software that uses libesd, libartsc or libpulse*.
34 */
35
36#include "libroar.h"
37
38static ssize_t _vio_stream_read    (struct roar_vio_calls * vio, void *buf, size_t count) {
39 return roar_vio_read(roar_get_connection_vio2(vio->inst), buf, count);
40}
41
42static ssize_t _vio_stream_write   (struct roar_vio_calls * vio, void *buf, size_t count) {
43 return roar_vio_write(roar_get_connection_vio2(vio->inst), buf, count);
44}
45
46static roar_off_t   _vio_stream_lseek   (struct roar_vio_calls * vio, roar_off_t offset, int whence) {
47 return roar_vio_lseek(roar_get_connection_vio2(vio->inst), offset, whence);
48}
49static int     _vio_stream_sync    (struct roar_vio_calls * vio) {
50 return roar_vio_sync(roar_get_connection_vio2(vio->inst));
51}
52static int     _vio_stream_ctl     (struct roar_vio_calls * vio, roar_vio_ctl_t cmd, void * data) {
53 if (vio == NULL) {
54  roar_err_set(ROAR_ERROR_FAULT);
55  return -1;
56 }
57
58 if (cmd == -1) {
59  roar_err_set(ROAR_ERROR_INVAL);
60  return -1;
61 }
62
63 switch (cmd) {
64  case ROAR_VIO_CTL_GET_NAME:
65    if ( data == NULL ) {
66     roar_err_set(ROAR_ERROR_FAULT);
67     return -1;
68    }
69
70    *(char**)data = "stream";
71    return 0;
72   break;
73  case ROAR_VIO_CTL_GET_NEXT:
74    *(struct roar_vio_calls **)data = roar_get_connection_vio2(vio->inst);
75    return 0;
76   break;
77  case ROAR_VIO_CTL_SET_NEXT:
78    roar_err_set(ROAR_ERROR_NOTSUP);
79    return -1;
80   break;
81  case ROAR_VIO_CTL_NONBLOCK:
82    return roar_vio_ctl(roar_get_connection_vio2(vio->inst), ROAR_VIO_CTL_NONBLOCK, data);
83   break;
84 }
85
86 return roar_vio_ctl(roar_get_connection_vio2(vio->inst), cmd, data);
87}
88
89static int     _vio_stream_close   (struct roar_vio_calls * vio) {
90 roar_vio_close(roar_get_connection_vio2(vio->inst));
91 roar_mm_free(vio->inst);
92
93 return 0;
94}
95
96int     roar_vio_simple_stream (struct roar_vio_calls * calls,
97                                uint32_t rate, uint32_t channels, uint32_t bits, uint32_t codec,
98                                const char * server, int dir, const char * name, int mixer) {
99 struct roar_connection * con = NULL;
100 struct roar_stream       stream;
101 int err;
102
103 if ( calls == NULL ) {
104  roar_err_set(ROAR_ERROR_FAULT);
105  return -1;
106 }
107
108 if ( roar_stream_new(&stream, rate, channels, bits, codec) == -1 )
109  return -1;
110
111 con = roar_mm_malloc(sizeof(struct roar_connection));
112 if ( con == NULL )
113  return -1;
114
115 memset(con, 0, sizeof(struct roar_connection));
116
117 if ( roar_simple_connect(con, server, name) == -1 ) {
118  err = roar_error;
119  roar_mm_free(con);
120  roar_error = err;
121  return -1;
122 }
123
124 if ( roar_stream_connect(con, &stream, dir, mixer) == -1 ) {
125  err = roar_error;
126  roar_disconnect(con);
127  roar_mm_free(con);
128  roar_error = err;
129  return -1;
130 }
131
132 if ( roar_stream_exec(con, &stream) == -1 ) {
133  err = roar_error;
134  roar_disconnect(con);
135  roar_mm_free(con);
136  roar_error = err;
137  return -1;
138 }
139
140 roar_vio_clear_calls(calls);
141
142 calls->inst       = con;
143 calls->read       = _vio_stream_read;
144 calls->write      = _vio_stream_write;
145 calls->lseek      = _vio_stream_lseek;
146 calls->sync       = _vio_stream_sync;
147 calls->ctl        = _vio_stream_ctl;
148 calls->close      = _vio_stream_close;
149
150 if ( dir == ROAR_DIR_PLAY ) {
151  roar_vio_shutdown(calls, SHUT_RD);
152 } else if ( dir == ROAR_DIR_MONITOR || dir == ROAR_DIR_RECORD ) {
153  roar_vio_shutdown(calls, SHUT_WR);
154 }
155
156 return 0;
157}
158
159static int _roar_simple_new_stream_obj (struct roar_connection * con, struct roar_stream * s, uint32_t rate, uint32_t channels, uint32_t bits, uint32_t codec, int dir, int mixer) {
160 struct roar_libroar_config * config = roar_libroar_get_config();
161 char file[80] = {0};
162 int fh = -1, listen = -1;
163 static int count = 0;
164 int    port = 0;
165#if defined(ROAR_HAVE_IPV4) || defined(ROAR_HAVE_LIBDNET)
166 int    opt  = 1;
167#endif
168#ifdef ROAR_HAVE_IPV4
169 struct sockaddr_in   socket_addr;
170 socklen_t            len            = sizeof(struct sockaddr_in);
171#else
172 struct sockaddr      socket_addr;
173 socklen_t            len            = sizeof(struct sockaddr);
174#endif
175#ifdef ROAR_HAVE_SELECT
176 int confh;
177 fd_set fds;
178 struct timeval timeout = {10, 0};
179 struct roar_message    mes;
180#endif
181#ifdef ROAR_HAVE_UNIX
182 int socks[2]; // for socketpair()
183#endif
184 struct roar_sockname sockname;
185
186 // make valgrind happy
187 memset(&socket_addr, 0, sizeof(socket_addr));
188#ifdef ROAR_HAVE_SELECT
189 memset(&mes,         0, sizeof(mes));
190#endif
191
192 ROAR_DBG("_roar_simple_new_stream_obj(con=%p, s=%p, rate=%i, channels=%i, bits=%i, codec=%i, dir=%i, mixer=%i) = ?", con, s, (int)rate, (int)channels, (int)bits, (int)codec, dir, mixer);
193
194 if ( config != NULL ) {
195  if ( config->workaround.workarounds & ROAR_LIBROAR_CONFIG_WAS_USE_EXECED ) {
196   return roar_simple_new_stream_attachexeced_obj(con, s, rate, channels, bits, codec, dir, mixer);
197  }
198 }
199
200 ROAR_DBG("_roar_simple_new_stream_obj(con=%p, s=%p, rate=%i, channels=%i, bits=%i, codec=%i, dir=%i, mixer=%i) = ?", con, s, (int)rate, (int)channels, (int)bits, (int)codec, dir, mixer);
201
202 roar_libroar_nowarn();
203 if ( roar_vio_ctl(roar_get_connection_vio2(con), ROAR_VIO_CTL_GET_SOCKNAME, &sockname) == -1 ) {
204  roar_libroar_warn();
205#ifdef ROAR_OS_OPENBSD
206  sockname.type = ROAR_SOCKET_TYPE_UNIX;
207#else
208  ROAR_DBG("_roar_simple_new_stream_obj(con=%p, s=%p, rate=%i, channels=%i, bits=%i, codec=%i, dir=%i, mixer=%i) = -1", con, s, (int)rate, (int)channels, (int)bits, (int)codec, dir, mixer);
209
210  return -1;
211#endif
212 }
213 roar_libroar_warn();
214
215 ROAR_DBG("_roar_simple_new_stream_obj(con=%p, s=%p, rate=%i, channels=%i, bits=%i, codec=%i, dir=%i, mixer=%i) = ?", con, s, (int)rate, (int)channels, (int)bits, (int)codec, dir, mixer);
216
217 if ( sockname.type == ROAR_SOCKET_TYPE_DECNET ) {
218  if ( roar_socket_get_local_nodename() ) {
219   snprintf(file, 24, "%s::roar$TMP%04x%02x", roar_socket_get_local_nodename(), getpid(), count++);
220  } else {
221   return -1;
222  }
223#ifdef ROAR_HAVE_IPV4
224 } else {
225  strncpy(file, inet_ntoa(socket_addr.sin_addr), sizeof(file) - 1);
226#endif
227 }
228
229 if ( sockname.type != ROAR_SOCKET_TYPE_UNIX ) {
230  if ( (listen = roar_socket_listen(sockname.type, file, port)) == -1 ) {
231   return -1;
232  }
233 }
234
235 if ( sockname.type == ROAR_SOCKET_TYPE_INET ) {
236#ifdef ROAR_HAVE_IPV4
237  setsockopt(listen, SOL_SOCKET, SO_REUSEADDR, (void*)&opt, sizeof(int));
238
239  len = sizeof(struct sockaddr_in);
240  if ( getsockname(listen, (struct sockaddr *)&socket_addr, &len) == -1 ) {
241   return -1;
242  }
243  port = ROAR_NET2HOST16(socket_addr.sin_port);
244  ROAR_DBG("roar_simple_new_stream_obj(*): port=%i", port);
245#else
246  return -1;
247#endif
248 } else if ( sockname.type == ROAR_SOCKET_TYPE_DECNET ) {
249#ifdef ROAR_HAVE_LIBDNET
250  setsockopt(listen, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int));
251#else
252  return -1;
253#endif
254 }
255
256 if ( roar_stream_new(s, rate, channels, bits, codec) == -1 ) {
257  return -1;
258 }
259
260 if ( roar_stream_connect(con, s, dir, mixer) == -1 ) {
261  return -1;
262 }
263
264 if ( sockname.type != ROAR_SOCKET_TYPE_UNIX ) {
265#ifdef ROAR_HAVE_SELECT
266  if ( roar_stream_connect_to_ask(con, s, sockname.type, file, port) != -1 ) {
267
268   FD_ZERO(&fds);
269   FD_SET(listen, &fds);
270
271   confh = roar_get_connection_fh(con);
272
273   if ( confh != -1 ) {
274    FD_SET(confh, &fds);
275   }
276
277   if ( select((confh > listen ? confh : listen) + 1, &fds, NULL, NULL, &timeout) < 1 ) {
278    close(listen);
279
280    // we don't need to check the content as we know it failed...
281    if ( roar_recv_message(con, &mes, NULL) == -1 )
282     return -1;
283
284    if ( roar_kick(con, ROAR_OT_STREAM, s->id) == -1 )
285     return -1;
286
287    return roar_simple_new_stream_attachexeced_obj(con, s, rate, channels, bits, codec, dir, mixer);
288   }
289
290   if ( FD_ISSET(listen, &fds) ) {
291    if ( (fh = accept(listen, NULL, NULL)) != -1 ) {
292     /* errr, do we need we any error handling here? */
293    }
294
295    if ( roar_recv_message(con, &mes, NULL) == -1 ) {
296     if ( fh != -1 )
297      close(fh);
298     fh = -1;
299    } else if ( mes.cmd != ROAR_CMD_OK ) {
300     if ( fh != -1 )
301      close(fh);
302     fh = -1;
303    }
304   } else {
305    // we don't need to check the content as we know it failed...
306    if ( roar_recv_message(con, &mes, NULL) == -1 ) {
307     close(listen);
308     return -1;
309    }
310
311    if ( mes.cmd != ROAR_CMD_OK ) {
312     close(listen);
313     if ( roar_kick(con, ROAR_OT_STREAM, s->id) == -1 )
314      return -1;
315
316     return roar_simple_new_stream_attachexeced_obj(con, s, rate, channels, bits, codec, dir, mixer);
317    } else { // seems like we have a positive reply. So we retry the listen socket:
318     FD_ZERO(&fds);
319     FD_SET(listen, &fds);
320     timeout.tv_sec = 0;
321     timeout.tv_usec = 128000L;
322     fh = -1;
323     if ( select(listen + 1, &fds, NULL, NULL, &timeout) > 0 ) {
324      if ( (fh = accept(listen, NULL, NULL)) == -1 ) {
325       close(listen);
326       if ( roar_kick(con, ROAR_OT_STREAM, s->id) == -1 )
327        return -1;
328
329       return roar_simple_new_stream_attachexeced_obj(con, s, rate, channels, bits, codec, dir, mixer);
330      }
331     }
332    }
333   }
334  }
335
336  close(listen);
337#else
338  return -1;
339#endif
340 } else { // this is sockname.type == ROAR_SOCKET_TYPE_UNIX
341#ifdef ROAR_HAVE_UNIX
342  if ( socketpair(AF_UNIX, SOCK_STREAM, 0, socks) == -1 ) {
343   roar_kick(con, ROAR_OT_STREAM, s->id); // we do not need to check for errors
344                                          // as we return -1 in both whys
345   return -1;
346  }
347
348  if ( roar_stream_passfh(con, s, socks[0]) == -1 ) {
349   roar_kick(con, ROAR_OT_STREAM, s->id); // we do not need to check for errors
350                                          // as we return -1 anyway.
351   close(socks[0]);
352   close(socks[1]);
353   return -1;
354  }
355
356  close(socks[0]);
357  fh = socks[1];
358#else
359  roar_kick(con, ROAR_OT_STREAM, s->id);
360  return -1;
361#endif
362 }
363
364 if ( fh != -1 ) {
365  if ( dir == ROAR_DIR_PLAY ) {
366   (void)ROAR_SHUTDOWN(fh, SHUT_RD);
367  } else if ( dir == ROAR_DIR_MONITOR || dir == ROAR_DIR_RECORD ) {
368   (void)ROAR_SHUTDOWN(fh, SHUT_WR);
369  }
370 }
371
372 s->fh = fh;
373
374 ROAR_DBG("_roar_simple_new_stream_obj(con=%p, s=%p, rate=%i, channels=%i, bits=%i, codec=%i, dir=%i, mixer=%i) = %i", con, s, (int)rate, (int)channels, (int)bits, (int)codec, dir, mixer, fh);
375 return fh;
376}
377
378int     roar_vio_simple_new_stream_obj (struct roar_vio_calls * calls,
379                                        struct roar_connection * con,
380                                        struct roar_stream * s,
381                                        uint32_t rate, uint32_t channels, uint32_t bits, uint32_t codec,
382                                        int dir, int mixer) {
383 struct roar_stream stream;
384 int fh;
385
386 ROAR_DBG("roar_vio_simple_new_stream_obj(*) = ?");
387
388 if ( calls == NULL ) {
389  roar_err_set(ROAR_ERROR_FAULT);
390  return -1;
391 }
392
393 if ( s == NULL )
394  s = &stream;
395
396 if ( (fh = _roar_simple_new_stream_obj(con, s, rate, channels, bits, codec, dir, mixer)) == -1 ) {
397  ROAR_DBG("roar_vio_simple_new_stream_obj(*) = -1");
398  return -1;
399 }
400
401 ROAR_DBG("roar_vio_simple_new_stream_obj(*): fh=%i", fh);
402
403 return roar_vio_open_fh_socket(calls, fh);
404}
405
406//ll
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