Remove some system errors from errno.h
[paraslash.git] / error.h
1 /*
2 * Copyright (C) 2006-2007 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file error.h list of error messages for all subsystems */
8
9 /** \cond */
10
11 /* list of all subsystems that use paraslash's error facility */
12 DEFINE_ERRLIST_OBJECT_ENUM;
13
14 /* these do not need error handling (yet) */
15 #define SERVER_ERRORS
16 #define CLIENT_ERRORS
17 #define WAV_ERRORS
18 #define COMPRESS_ERRORS
19 #define TIME_ERRORS
20 #define CLOSE_ON_FORK_ERRORS
21 #define DAEMON_ERRORS
22 #define ORTP_SEND_ERRORS
23 #define GUI_ERRORS
24 #define RINGBUFFER_ERRORS
25 #define SCORE_ERRORS
26 #define SHA1_ERRORS
27 #define RECV_ERRORS
28
29 extern const char **para_errlist[];
30
31 #define FSCK_ERRORS \
32 PARA_ERROR(FSCK_SYNTAX, "fsck syntax error"), \
33 PARA_ERROR(RANGE_VIOLATION, "range violation detected, very bad"), \
34 PARA_ERROR(NOT_A_REGULAR_FILE, "not a regular file"), \
35
36
37 #define OSL_ERRORS \
38 PARA_ERROR(BAD_DB_DIR, "invalid database directory"), \
39 PARA_ERROR(NO_COLUMN_DESC, "missing column description"), \
40 PARA_ERROR(BAD_NAME, "invalid name for a column/table"), \
41 PARA_ERROR(BAD_STORAGE_TYPE, "invalid storage type"), \
42 PARA_ERROR(BAD_STORAGE_FLAGS, "invalid storage flags"), \
43 PARA_ERROR(NO_COLUMN_NAME, "missing column name"), \
44 PARA_ERROR(NO_COLUMNS, "at least one column required"), \
45 PARA_ERROR(BAD_COLUMN_NAME, "invalid name for a table column"), \
46 PARA_ERROR(NO_UNIQUE_RBTREE_COLUMN, "need at least one mapped column with OSL_UNIQE and OSL_RBTREE OSL"), \
47 PARA_ERROR(NO_RBTREE_COL, "at least one column needs an rbtree"), \
48 PARA_ERROR(DUPLICATE_COL_NAME, "column name given twice"), \
49 PARA_ERROR(BAD_STORAGE_SIZE, "invalid storage size"), \
50 PARA_ERROR(NO_COMPARE_FUNC, "missing compare function"), \
51 PARA_ERROR(BAD_DATA_SIZE, "wrong data size for fixed-size column"), \
52 PARA_ERROR(NOT_MAPPED, "file not mapped"), \
53 PARA_ERROR(ALREADY_MAPPED, "file already mapped"), \
54 PARA_ERROR(BAD_SIZE, "invalid size specified"), \
55 PARA_ERROR(TRUNC, "failed to truncate file"), \
56 PARA_ERROR(UNLINK, "failed to remove file"), \
57 PARA_ERROR(BAD_TABLE, "table not open"), \
58 PARA_ERROR(BAD_TABLE_DESC, "invalid table description"), \
59 PARA_ERROR(RB_KEY_EXISTS, "key already exists in rbtree"), \
60 PARA_ERROR(RB_KEY_NOT_FOUND, "key not found in rbtree"), \
61 PARA_ERROR(BAD_ROW_NUM, "invalid row number"), \
62 PARA_ERROR(INDEX_CORRUPTION, "index corruption detected"), \
63 PARA_ERROR(INVALID_OBJECT, "reference to invalid object"), \
64 PARA_ERROR(STAT, "can not stat file"), \
65 PARA_ERROR(FSTAT, "fstat error"), \
66 PARA_ERROR(RENAME, "rename failed"), \
67 PARA_ERROR(EMPTY, "file empty"), \
68 PARA_ERROR(MMAP, "mmap error"), \
69 PARA_ERROR(MUNMAP, "munmap failed"), \
70 PARA_ERROR(WRITE, "write error"), \
71 PARA_ERROR(LSEEK, "lseek error"), \
72 PARA_ERROR(BUSY, "table is busy"), \
73 PARA_ERROR(SHORT_TABLE, "table too short"), \
74 PARA_ERROR(NO_MAGIC, "missing table header magic"), \
75 PARA_ERROR(VERSION_MISMATCH, "table version not suppoerted"), \
76 PARA_ERROR(BAD_COLUMN_NUM, "invalid column number"), \
77 PARA_ERROR(BAD_TABLE_FLAGS, "invalid flags in table description"), \
78 PARA_ERROR(BAD_ROW, "invalid row"), \
79
80
81 #define RBTREE_ERRORS \
82
83
84 #define AFS_ERRORS \
85 PARA_ERROR(BAD_TABLE_NAME, "invalid table"), \
86 PARA_ERROR(INPUT_TOO_LARGE, "input too large for stdin command"), \
87 PARA_ERROR(AFS_SYNTAX, "afs syntax error"), \
88 PARA_ERROR(AFS_SIGNAL, "afs caught deadly signal"), \
89
90
91 #define MOOD_ERRORS \
92 PARA_ERROR(MOOD_SYNTAX, "mood syntax error"), \
93 PARA_ERROR(NO_MOOD, "no mood available"), \
94 PARA_ERROR(MOOD_LOADED, "mood loaded"), \
95 PARA_ERROR(NOT_ADMISSIBLE, "file is not admussible"), \
96
97
98 #define ATTRIBUTE_ERRORS \
99 PARA_ERROR(ATTR_SYNTAX, "attribute syntax error"), \
100 PARA_ERROR(ATTR_EXISTS, "attribute already exists"), \
101 PARA_ERROR(ATTR_TABLE_FULL, "attribute table full"), \
102 PARA_ERROR(NO_ATTRIBUTES, "no attributes defined yet"), \
103
104 #define BLOB_ERRORS \
105 PARA_ERROR(BLOB_SYNTAX, "blob syntax error"), \
106 PARA_ERROR(DUMMY_ROW, "attempted to access blob dummy object"), \
107
108
109 #define PLAYLIST_ERRORS \
110 PARA_ERROR(NO_PLAYLIST, "no valid playlist found"), \
111 PARA_ERROR(PLAYLIST_LOADED, ""), /* not really an error */ \
112 PARA_ERROR(PLAYLIST_EMPTY, "attempted to load empty playlist"), \
113
114
115 #define AFT_ERRORS \
116 PARA_ERROR(BAD_AFSI, "invaid afs info"), \
117 PARA_ERROR(LOCALTIME, "localtime() failed"), \
118 PARA_ERROR(STRFTIME, "strftime() failed"), \
119 PARA_ERROR(BAD_PATH, "invalid path"), \
120 PARA_ERROR(BAD_SORT, "invalid sorting method"), \
121 PARA_ERROR(FNMATCH, "fnmatch error"), \
122 PARA_ERROR(NO_MATCH, "no matches"), \
123 PARA_ERROR(NO_AFHI, "audio format handler info required"), \
124 PARA_ERROR(AFT_SYNTAX, "audio file table syntax error"), \
125 PARA_ERROR(HASH_MISMATCH, "hash mismatch, consider re-add"), \
126
127
128 #define USER_LIST_ERRORS \
129 PARA_ERROR(USERLIST, "failed to open user list file"), \
130
131
132 #define OSX_WRITE_ERRORS \
133 PARA_ERROR(STREAM_FORMAT, "could not set stream format"), \
134 PARA_ERROR(ADD_CALLBACK, "can not add callback"), \
135 PARA_ERROR(OPEN_COMP, "OpenAComponent() error"), \
136 PARA_ERROR(UNIT_INIT, "AudioUnitInitialize() error"), \
137 PARA_ERROR(UNIT_START, "AudioUnitStart() error"), \
138 PARA_ERROR(DEFAULT_COMP, "can not find default audio output component"), \
139
140
141 #define AUDIOC_ERRORS \
142 PARA_ERROR(AUDIOC_SYNTAX, "audioc syntax error"), \
143 PARA_ERROR(AUDIOC_READ, "audioc read error"), \
144 PARA_ERROR(AUDIOC_WRITE, "audioc write error"), \
145 PARA_ERROR(AUDIOC_OVERRUN, "audioc buffer overrun"), \
146
147
148
149 #define CLIENT_COMMON_ERRORS \
150 PARA_ERROR(CLIENT_SYNTAX, "syntax error"), \
151 PARA_ERROR(INVALID_CHALLENGE, "did not receive valid challenge"), \
152 PARA_ERROR(NO_CONFIG, "config file not found"), \
153 PARA_ERROR(CLIENT_AUTH, "authentication failed"), \
154 PARA_ERROR(SERVER_EOF, "connection closed by para_server"), \
155 PARA_ERROR(INPUT_EOF, "end of input"), \
156 PARA_ERROR(HANDSHAKE_COMPLETE, ""), /* not really an error */ \
157
158
159 #define SCHED_ERRORS \
160 PARA_ERROR(TASK_KILLED, "task killed"), \
161 PARA_ERROR(NO_SUCH_TASK, "task not found"), \
162 PARA_ERROR(NOT_INITIALIZED, "scheduler not yet initialized"), \
163
164
165 #define STDIN_ERRORS \
166 PARA_ERROR(STDIN_READ, "failed to read from stdin"), \
167 PARA_ERROR(STDIN_EOF, "end of file"), \
168
169
170 #define STDOUT_ERRORS \
171 PARA_ERROR(STDOUT_WRITE, "failed to write to stdout"), \
172 PARA_ERROR(STDOUT_EOF, "end of file"), \
173
174
175 #define NET_ERRORS \
176 PARA_ERROR(SEND, "send error"), \
177 PARA_ERROR(RECV, "receive error"), \
178 PARA_ERROR(SOCKET, "socket error"), \
179 PARA_ERROR(CONNECT, "connect error"), \
180 PARA_ERROR(ACCEPT, "accept error"), \
181 PARA_ERROR(SETSOCKOPT, "failed to set socket options"), \
182 PARA_ERROR(BIND, "bind error"), \
183 PARA_ERROR(NAME_TOO_LONG, "name too long for struct sockaddr_un"), \
184 PARA_ERROR(CHMOD, "failed to set socket mode"), \
185 PARA_ERROR(SENDMSG, "sendmsg() failed"), \
186 PARA_ERROR(RECVMSG, "recvmsg() failed"), \
187 PARA_ERROR(SCM_CREDENTIALS, "did not receive SCM credentials"), \
188 PARA_ERROR(LISTEN, "listen error"), \
189 PARA_ERROR(RECV_PATTERN, "did not receive expected pattern"), \
190 PARA_ERROR(HOST_INFO, "gethostbyname() failed"), \
191
192
193 #define ORTP_RECV_ERRORS \
194 PARA_ERROR(MSG_TO_BUF, "failed to extract rtp packet"), \
195 PARA_ERROR(ORTP_SYNTAX, "ottp syntax error"), \
196 PARA_ERROR(TOO_MANY_BAD_CHUNKS, "too many consecutive bad chunks"), \
197 PARA_ERROR(INVALID_HEADER, "invalid header packet"), \
198 PARA_ERROR(OVERRUN, "outout buffer overrun"), \
199 PARA_ERROR(ORTP_RECV_EOF, "ortp_recv: end of file"), \
200
201
202 #define HTTP_RECV_ERRORS \
203 PARA_ERROR(HTTP_RECV_EOF, "http_recv: end of file"), \
204 PARA_ERROR(HTTP_RECV_OVERRUN, "http_recv: outout buffer overrun"), \
205
206 #define RECV_COMMON_ERRORS \
207 PARA_ERROR(RECV_SYNTAX, "recv syntax error"), \
208
209
210 #define AUDIOD_ERRORS \
211 PARA_ERROR(NO_MORE_SLOTS, "no more empty slots"), \
212 PARA_ERROR(MISSING_COLON, "syntax error: missing colon"), \
213 PARA_ERROR(UNSUPPORTED_AUDIO_FORMAT, "given audio format not supported"), \
214 PARA_ERROR(SIGNAL_CAUGHT, "caught signal"), \
215
216
217 #define AUDIOD_COMMAND_ERRORS \
218 PARA_ERROR(CLIENT_WRITE, "client write error"), \
219 PARA_ERROR(AUDIOD_SYNTAX, "syntax error"), \
220 PARA_ERROR(UCRED_PERM, "permission denied"), \
221 PARA_ERROR(INVALID_AUDIOD_CMD, "invalid command"), \
222
223
224 #define FILTER_CHAIN_ERRORS \
225 PARA_ERROR(UNSUPPORTED_FILTER, "given filter not supported"), \
226 PARA_ERROR(BAD_FILTER_OPTIONS, "invalid filter option given"), \
227 PARA_ERROR(FC_EOF, "filter chain: eof"), \
228
229
230 #define STAT_ERRORS \
231 PARA_ERROR(TOO_MANY_CLIENTS, "maximal number of stat clients exceeded"), \
232 PARA_ERROR(UNKNOWN_STAT_ITEM, "status item not recognized"), \
233
234
235 #define OGGDEC_ERRORS \
236 PARA_ERROR(OGGDEC_READ, "read from media returned an error"), \
237 PARA_ERROR(OGGDEC_NOTVORBIS, "bitstream is not vorbis data"), \
238 PARA_ERROR(OGGDEC_VERSION, "vorbis version mismatch"), \
239 PARA_ERROR(OGGDEC_BADHEADER, "invalid vorbis bitstream header"), \
240 PARA_ERROR(OGGDEC_FAULT, "bug or heap/stack corruption"), \
241 PARA_ERROR(OGGDEC_BADLINK, "invalid stream section or requested link corrupt"), \
242
243
244 #define GRAB_CLIENT_ERRORS \
245 PARA_ERROR(PEDANTIC_GRAB, "fd not ready and pedantic grab requested"), \
246 PARA_ERROR(GC_WRITE, "grab client write error"), \
247 PARA_ERROR(BAD_GC_SLOT, "invalid slot requested by grab client"), \
248 PARA_ERROR(BAD_GC_FILTER_NUM, "invalid filter number given"), \
249 PARA_ERROR(GC_SYNTAX, "grab client syntax error"), \
250 PARA_ERROR(GC_HELP_GIVEN, ""), /* not really an error */ \
251 PARA_ERROR(GC_VERSION_GIVEN, ""), /* not really an error */ \
252
253
254 #define MP3DEC_ERRORS \
255 PARA_ERROR(MAD_FRAME_DECODE, "mad frame decode error"), \
256 PARA_ERROR(MP3DEC_OVERRUN, "mp3 output buffer overrun"), \
257
258
259 #define FILTER_ERRORS \
260 PARA_ERROR(NO_FILTERS, "at least one filter must be given"), \
261 PARA_ERROR(FILTER_SYNTAX, "syntax error"), \
262
263
264 #define SIGNAL_ERRORS \
265 PARA_ERROR(SIGNAL_SIG_ERR, "signal() retured SIG_ERR"), \
266 PARA_ERROR(SIGNAL_READ, "read error from signal pipe"), \
267 PARA_ERROR(WAITPID, "waitpid error"), \
268 PARA_ERROR(SIGNAL_PIPE, "failed to setup signal pipe"), \
269
270
271 #define STRING_ERRORS \
272 PARA_ERROR(MKSTEMP, "mkstemp error: unable to create tmp file"), \
273 PARA_ERROR(FCHMOD, "fchmod error: can not set mode"), \
274 PARA_ERROR(ATOI_OVERFLOW, "value too large"), \
275 PARA_ERROR(STRTOLL, "unknown strtoll error"), \
276 PARA_ERROR(ATOI_NO_DIGITS, "no digits found in string"), \
277 PARA_ERROR(ATOI_JUNK_AT_END, "further characters after number"), \
278
279
280 #define EXEC_ERRORS \
281 PARA_ERROR(DUP_PIPE, "exec error: can not create pipe"), \
282 PARA_ERROR(NULL_OPEN, "can not open /dev/null"), \
283
284
285 #define MP3_AFH_ERRORS \
286 PARA_ERROR(FRAME, "invalid mp3 frame"), \
287 PARA_ERROR(FRAME_LENGTH, "invalid frame length"), \
288 PARA_ERROR(MP3_INFO, "could not read mp3 info"), \
289 PARA_ERROR(HEADER_FREQ, "invalid header frequency"), \
290 PARA_ERROR(HEADER_BITRATE, "invalid header bitrate"), \
291
292
293 #define AAC_AFH_ERRORS \
294 PARA_ERROR(STSZ, "did not find stcz atom"), \
295 PARA_ERROR(MP4ASC, "audio spec config error"), \
296 PARA_ERROR(AAC_AFH_INIT, "failed to init aac decoder"), \
297
298
299 #define AAC_COMMON_ERRORS \
300 PARA_ERROR(ESDS, "did not find esds atom"), \
301 PARA_ERROR(STCO, "did not find stco atom"), \
302
303
304 #define OGG_AFH_ERRORS \
305 PARA_ERROR(OGG_READ, "ogg read error"), \
306 PARA_ERROR(SYNC_PAGEOUT, "ogg sync page-out error (no ogg file?)"), \
307 PARA_ERROR(STREAM_PAGEIN, "ogg stream page-in error (first page)"), \
308 PARA_ERROR(STREAM_PACKETOUT, "ogg stream packet-out error (first packet)"), \
309 PARA_ERROR(VORBIS, "vorbis synthesis header-in error (not vorbis?)"), \
310 PARA_ERROR(OGG_INFO, "ov_info error"), \
311 PARA_ERROR(OGG_VERSION, "unsupported ogg version"), \
312 PARA_ERROR(OGG_BAD_HEADER, "invalid ogg vorbis header"), \
313 PARA_ERROR(OGG_UNKNOWN_ERROR, "unknown ogg vorbis error"), \
314
315
316 #define VSS_ERRORS \
317 PARA_ERROR(BAD_AUDIO_FILE_SUFFIX, "unknown suffix"), \
318 PARA_ERROR(AUDIO_FORMAT, "audio format not recognized"), \
319 PARA_ERROR(CHUNK, "unable to get chunk"), \
320
321
322 #define AFS_COMMON_ERRORS \
323 PARA_ERROR(LSTAT, "lstat error"), \
324
325
326 #define CRYPT_ERRORS \
327 PARA_ERROR(PRIVATE_KEY, "can not read private key"), \
328 PARA_ERROR(PUBLIC_KEY, "can not read public key"), \
329 PARA_ERROR(RSA, "RSA error"), \
330 PARA_ERROR(ENCRYPT, "encrypt error"), \
331 PARA_ERROR(DECRYPT, "decrypt error"), \
332 PARA_ERROR(CHALLENGE, "failed to read challenge"), \
333
334
335 #define HTTP_SEND_ERRORS \
336 PARA_ERROR(WRITE_OK, "can not check whether fd is writable"), \
337 PARA_ERROR(SEND_QUEUED_CHUNK, "failed to send queued chunk"), \
338
339
340 #define RANDOM_SELECTOR_ERRORS \
341 PARA_ERROR(NOTHING_FOUND, "no audio files found"), \
342
343
344 #define MYSQL_SELECTOR_ERRORS \
345 PARA_ERROR(MYSQL_SYNTAX, "mysql syntax error"), \
346 PARA_ERROR(NOTCONN, "not connected to mysql server"), \
347 PARA_ERROR(TOOBIG, "mysql: file too large"), \
348 PARA_ERROR(NAMETOOLONG, "mysql: name too long"), \
349 PARA_ERROR(QFAILED, "mysql query failed"), \
350 PARA_ERROR(NOROW, "row is NULL"), \
351 PARA_ERROR(NOATTS, "can not get attributes from mysql table"), \
352 PARA_ERROR(NORESULT, "error while fetching mysql result"), \
353 PARA_ERROR(EMPTY_RESULT, "result is empty"), \
354 PARA_ERROR(ESCAPE, "can not escape string"), \
355 PARA_ERROR(GET_AUDIO_FILE, "can not get current audio file"), \
356 PARA_ERROR(GET_STREAM, "can not get current stream"), \
357 PARA_ERROR(NO_STREAM, "no such stream"), \
358 PARA_ERROR(AUDIO_FILE, "no such audio file"), \
359 PARA_ERROR(GET_QUERY, "can not get query for specified stream"), \
360 PARA_ERROR(TMPFILE, "error while writing temporary file"), \
361 PARA_ERROR(META, "can not get meta data"), \
362 PARA_ERROR(MYSQL_INIT, "can not initialize mysql connection"), \
363 PARA_ERROR(NO_MYSQL_PASSWD, "fatal: no mysql passord given"), \
364 PARA_ERROR(NO_AF_DIR, "fatal: audio file directory not given"), \
365
366
367 #define COMMAND_ERRORS \
368 PARA_ERROR(COMMAND_SYNTAX, "syntax error in command"), \
369 PARA_ERROR(AUTH, "did not receive auth request"), \
370 PARA_ERROR(BAD_SELECTOR, "no such audio file selector"), \
371 PARA_ERROR(NO_AUDIO_FILE, "no audio file"), \
372 PARA_ERROR(BAD_CMD, "invalid command"), \
373 PARA_ERROR(PERM, "permission denied"), \
374 PARA_ERROR(LOCK, "lock error"), \
375 PARA_ERROR(SENDER_CMD, "command not supported by this sender"), \
376 PARA_ERROR(SERVER_CRASH, "para_server crashed -- can not live without it"), \
377 PARA_ERROR(BAD_USER, "you don't exist. Go away."), \
378
379
380 #define PLAYLIST_SELECTOR_ERRORS \
381 PARA_ERROR(LOAD_PLAYLIST, "failed to load playlist"), \
382
383
384 #define IPC_ERRORS \
385 PARA_ERROR(SEM_GET, "failed to create semaphore"), \
386 PARA_ERROR(SEM_REMOVE, "can not remove semaphore"), \
387 PARA_ERROR(SHM_GET, "failed to allocate shared memory area"), \
388 PARA_ERROR(SHM_DESTROY, "failed to destroy shared memory area"), \
389 PARA_ERROR(SHM_ATTACH, "can not attach shared memory area"), \
390 PARA_ERROR(SHM_DETACH, "can not detach shared memory area"), \
391
392
393 #define DCCP_ERRORS \
394 PARA_ERROR(DCCP_SOCKET, "can not create dccp socket"), \
395
396
397 #define DCCP_RECV_ERRORS \
398 PARA_ERROR(ADDR_INFO, "getaddrinfo error"), \
399 PARA_ERROR(DCCP_OVERRUN, "dccp output buffer buffer overrun"), \
400 PARA_ERROR(DCCP_CONNECT, "dccp connect error"), \
401 PARA_ERROR(DCCP_RECV_EOF, "dccp_recv: end of file"), \
402
403
404 #define DCCP_SEND_ERRORS \
405 PARA_ERROR(DCCP_BIND, "dccp bind error"), \
406 PARA_ERROR(DCCP_LISTEN, "dccp listen error"), \
407 PARA_ERROR(DCCP_WRITE, "dccp write error"), \
408
409
410 #define FD_ERRORS \
411 PARA_ERROR(FGETS, "fgets error"), \
412 PARA_ERROR(CHDIR, "failed to change directory"), \
413 PARA_ERROR(FCHDIR, "fchdir failed"), \
414 PARA_ERROR(OPENDIR, "can not open directory"), \
415 PARA_ERROR(OPEN, "failed to open file"), \
416 PARA_ERROR(CHDIR_PERM, "insufficient permissions to chdir"), \
417
418
419 #define WRITE_ERRORS \
420 PARA_ERROR(WRITE_SYNTAX, "para_write syntax error"), \
421 PARA_ERROR(PREMATURE_END, "premature end of audio file"), \
422 PARA_ERROR(NO_WAV_HEADER, "wave header not found"), \
423 PARA_ERROR(WAV_HEADER_SUCCESS, "successfully read wave header"), \
424 PARA_ERROR(NO_DELAY, "no initial delay"), \
425 PARA_ERROR(DELAY_TIMEOUT, "initial delay timeout"), \
426
427
428 #define ALSA_WRITE_ERRORS \
429 PARA_ERROR(BROKEN_CONF, "Broken alsa configuration"), \
430 PARA_ERROR(ACCESS_TYPE, "alsa access type not available"), \
431 PARA_ERROR(SAMPLE_FORMAT, "sample format not available"), \
432 PARA_ERROR(CHANNEL_COUNT, "channels count not available"), \
433 PARA_ERROR(HW_PARAMS, "unable to install hw params"), \
434 PARA_ERROR(SW_PARAMS, "unable to install sw params"), \
435 PARA_ERROR(BAD_PERIOD, "can not use period equal to buffer size"), \
436 PARA_ERROR(GET_XFER, "unable to obtain xfer align"), \
437 PARA_ERROR(SET_XFER, "snd_pcm_sw_params_set_xfer_align() failed"), \
438 PARA_ERROR(ALSA_WRITE, "alsa write error"), \
439 PARA_ERROR(PCM_OPEN, "unable to open pcm"), \
440 PARA_ERROR(SND_PCM_INFO, "pcm info error"), \
441 PARA_ERROR(GET_BUFFER_TIME, "snd_pcm_hw_params_get_buffer_time_max() failed"), \
442 PARA_ERROR(SET_BUFFER_TIME, "snd_pcm_hw_params_set_buffer_time_near() failed"), \
443 PARA_ERROR(SET_RATE, "snd_pcm_hw_params_set_rate_near failed"), \
444 PARA_ERROR(START_THRESHOLD, "snd_pcm_sw_params_set_start_threshold() failed"), \
445 PARA_ERROR(STOP_THRESHOLD, "snd_pcm_sw_params_set_stop_threshold() failed"), \
446
447
448 #define FILE_WRITE_ERRORS \
449 PARA_ERROR(FW_WRITE, "file writer write error"), \
450 PARA_ERROR(FW_OPEN, "file writer: can not open output file"), \
451 PARA_ERROR(FW_NO_FILE, "task started without open file"), \
452
453
454 #define WRITE_COMMON_ERRORS \
455 PARA_ERROR(WRITE_COMMON_SYNTAX, "syntax error in write option"), \
456 PARA_ERROR(WNG_EOF, "wng: end of file"), \
457
458
459 #define AACDEC_ERRORS \
460 PARA_ERROR(AACDEC_INIT, "failed to init aac decoder"), \
461 PARA_ERROR(AAC_DECODE, "aac decode error"), \
462 PARA_ERROR(AAC_OVERRUN, "aac output buffer overrun"), \
463
464
465 #define CHUNK_QUEUE_ERRORS \
466 PARA_ERROR(QUEUE, "packet queue overrun"), \
467
468 /** \endcond */
469
470 /**
471 * the subsystem shift
472 *
473 * 255 error codes ought to be enough for every subsystem. Use the higher bits
474 * of the return value to encode the subsystem number
475 */
476 #define SS_SHIFT 8
477
478 /**
479 * compute the subsystem offset
480 *
481 * It is given by x * 2**8 where \a x is the subsystem number
482 */
483 #define SS_OFFSET(ss) (SS_ ## ss << SS_SHIFT)
484
485 /**
486 * make the enum of all errors of one subsystem
487 *
488 * As zero should not be an error, we define a dummy enum entry with value
489 * 2**ss. That lets the real errors start at 2**ss + 1.
490 */
491 #define SS_ENUM(ss) enum {\
492 E_ ## ss ## _DUMMY = SS_OFFSET(ss), \
493 ss ## _ERRORS}
494
495 /**
496 * determine the subsystem number from the error number
497 *
498 * Easy, it's just \a num / 2**8.
499 */
500 #define ERRNUM_TO_SS(num) ((num) >> SS_SHIFT)
501
502 /**
503 * determine the index of an error number
504 *
505 * Also easy: It's the lower 8 bits of num.
506 */
507 #define ERRNUM_TO_INDEX(num) (((1 << SS_SHIFT) - 1) & (num))
508
509 #define SYSTEM_ERROR_BIT 30
510
511 #define IS_SYSTEM_ERROR(num) (!!((num) & (1 << SYSTEM_ERROR_BIT)))
512
513 #define ERRNO_TO_PARA_ERROR(num) ((num) | (1 << SYSTEM_ERROR_BIT))
514
515 static inline int is_errno(int val, int _errno)
516 {
517 assert(val > 0 && _errno > 0);
518 return ERRNO_TO_PARA_ERROR(_errno) == val;
519 }
520
521 /**
522 * paraslash's version of strerror(3)
523 *
524 * expands to the error text of \a num (a string constant).
525 */
526 #define PARA_STRERROR(num) IS_SYSTEM_ERROR(num)? \
527 strerror((num) & ((1 << SYSTEM_ERROR_BIT) - 1)) : \
528 para_errlist[ERRNUM_TO_SS(num)] [ERRNUM_TO_INDEX(num)]
529
530 /**
531 * define the error list for one subsystem
532 #
533 * The first entry (index 0) is always the name of the subsystem
534 * Used by macros in config.h (generated by configure)
535 */
536 #define DEFINE_ERRLIST(ss) const char * ss ## _ERRLIST[] = {#ss, ss ## _ERRORS}
537
538 /**
539 * activate errors for one subsystem.
540 *
541 * Each executable needs only the error lists of those subssystems it is
542 * actually linked with. We always reserve space for NUM_SS char ** pointers,
543 * but only init those of the needed subsystems. This macro is used by macros
544 * in config.h (generated by configure).
545 */
546 #define PARA_ERRLIST(ss) [SS_ ## ss] = ss ## _ERRLIST
547
548 /**
549 * This is temporarily defined to expand to its first argument (prefixed by
550 * 'E_') and gets later redefined to expand to the error text only
551 */
552 #define PARA_ERROR(err, msg) E_ ## err
553 #include "error2.h"
554 #undef PARA_ERROR
555 /* rest of the world only sees the error text */
556 #define PARA_ERROR(err, msg) msg