check_wav: return error on premature end of file.
[paraslash.git] / error.h
1 /*
2 * Copyright (C) 2006 Andre Noll <maan@systemlinux.org>
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
17 */
18
19 /** \file error.h list of error messages for all subsystems */
20
21 /** \cond list of all subsystems that support the shiny error facility */
22 enum para_subsystem {
23 SS_GUI,
24 SS_TIME,
25 SS_WAV,
26 SS_COMPRESS,
27 SS_CLOSE_ON_FORK,
28 SS_DAEMON,
29 SS_DCCP_SEND,
30 SS_RINGBUFFER,
31 SS_RECV,
32 SS_NET,
33 SS_ORTP_RECV,
34 SS_AUDIOD,
35 SS_EXEC,
36 SS_SCHED,
37 SS_STDIN,
38 SS_SIGNAL,
39 SS_STRING,
40 SS_STAT,
41 SS_GRAB_CLIENT,
42 SS_HTTP_RECV,
43 SS_RECV_COMMON,
44 SS_FILTER_CHAIN,
45 SS_OGGDEC,
46 SS_FILTER,
47 SS_COMMAND,
48 SS_RANDOM_SELECTOR,
49 SS_PLAYLIST_SELECTOR,
50 SS_CRYPT,
51 SS_HTTP_SEND,
52 SS_ORTP_SEND,
53 SS_DB,
54 SS_OGG_AFH,
55 SS_MP3_AFH,
56 SS_AAC_AFH,
57 SS_MP3DEC,
58 SS_AACDEC,
59 SS_AAC_COMMON,
60 SS_SERVER,
61 SS_AFS,
62 SS_MYSQL_SELECTOR,
63 SS_IPC,
64 SS_DCCP,
65 SS_DCCP_RECV,
66 SS_FD,
67 SS_WRITE,
68 SS_WRITE_COMMON,
69 SS_ALSA_WRITER,
70 SS_FILE_WRITER,
71 NUM_SS
72 };
73
74 /* these do not need error handling (yet) */
75 #define SERVER_ERRORS
76 #define WAV_ERRORS
77 #define COMPRESS_ERRORS
78 #define TIME_ERRORS
79 #define CLOSE_ON_FORK_ERRORS
80 #define DAEMON_ERRORS
81 #define ORTP_SEND_ERRORS
82 #define GUI_ERRORS
83 #define RINGBUFFER_ERRORS
84
85
86 extern const char **para_errlist[];
87 /** \endcond */
88
89 #define STDIN_ERRORS \
90 PARA_ERROR(STDIN_READ, "failed to read from stdin"), \
91
92
93 #define SCHED_ERRORS \
94 PARA_ERROR(PRE_EOF, "pre_select returned zero"), \
95 PARA_ERROR(POST_EOF, "post_select returned zero"), \
96
97
98
99
100 #define NET_ERRORS \
101 PARA_ERROR(SEND, "send error"), \
102 PARA_ERROR(RECV, "receive error"), \
103 PARA_ERROR(SOCKET, "socket error"), \
104 PARA_ERROR(CONNECT, "connect error"), \
105 PARA_ERROR(ACCEPT, "accept error"), \
106 PARA_ERROR(SETSOCKOPT, "failed to set socket options"), \
107 PARA_ERROR(BIND, "bind error"), \
108 PARA_ERROR(NAME_TOO_LONG, "name too long for struct sockaddr_un"), \
109 PARA_ERROR(CHMOD, "failed to set socket mode"), \
110 PARA_ERROR(SENDMSG, "sendmsg() failed"), \
111 PARA_ERROR(RECVMSG, "recvmsg() failed"), \
112 PARA_ERROR(SCM_CREDENTIALS, "did not receive SCM credentials"), \
113 PARA_ERROR(LISTEN, "listen error"), \
114 PARA_ERROR(RECV_PATTERN, "did not receive expected pattern"), \
115 PARA_ERROR(HOST_INFO, "gethostbyname() failed"), \
116
117
118 #define ORTP_RECV_ERRORS \
119 PARA_ERROR(MSG_TO_BUF, "failed to extract rtp packet"), \
120 PARA_ERROR(ORTP_SYNTAX, "ottp syntax error"), \
121 PARA_ERROR(TOO_MANY_BAD_CHUNKS, "too many consecutive bad chunks"), \
122 PARA_ERROR(INVALID_HEADER, "invalid header packet"), \
123 PARA_ERROR(OVERRUN, "outout buffer overrun"), \
124
125
126 #define HTTP_RECV_ERRORS \
127 PARA_ERROR(SEND_HTTP_REQUEST, "failed to send http request"), \
128 PARA_ERROR(MISSING_OK, "did not receive OK message from peer"), \
129 PARA_ERROR(HTTP_RECV_BUF, "did not receive buffer")
130
131
132 #define RECV_ERRORS \
133 PARA_ERROR(RECV_SELECT, "recv select error"), \
134 PARA_ERROR(WRITE_STDOUT, "stdout write error"), \
135
136
137 #define RECV_COMMON_ERRORS \
138 PARA_ERROR(RECV_SYNTAX, "recv syntax error"), \
139
140
141 #define AUDIOD_ERRORS \
142 PARA_ERROR(WRITE_AUDIO_DATA, "failed to write audio data"), \
143 PARA_ERROR(NO_MORE_SLOTS, "no more empty slots"), \
144 PARA_ERROR(MISSING_COLON, "syntax error: missing colon"), \
145 PARA_ERROR(UNSUPPORTED_AUDIO_FORMAT, "given audio format not supported"), \
146 PARA_ERROR(CLIENT_WRITE, "client write error"), \
147 PARA_ERROR(UCRED_PERM, "permission denied"), \
148 PARA_ERROR(INVALID_AUDIOD_CMD, "invalid command"), \
149
150
151 #define FILTER_CHAIN_ERRORS \
152 PARA_ERROR(UNSUPPORTED_FILTER, "given filter not supported"), \
153 PARA_ERROR(BAD_FILTER_OPTIONS, "invalid filter option given"), \
154
155
156 #define STAT_ERRORS \
157 PARA_ERROR(TOO_MANY_CLIENTS, "maximal number of stat clients exceeded"), \
158 PARA_ERROR(UNKNOWN_STAT_ITEM, "status item not recognized"), \
159
160
161 #define OGGDEC_ERRORS \
162 PARA_ERROR(OGGDEC_READ, "read from media returned an error"), \
163 PARA_ERROR(OGGDEC_NOTVORBIS, "bitstream is not vorbis data"), \
164 PARA_ERROR(OGGDEC_VERSION, "vorbis version mismatch"), \
165 PARA_ERROR(OGGDEC_BADHEADER, "invalid vorbis bitstream header"), \
166 PARA_ERROR(OGGDEC_FAULT, "bug or heap/stack corruption"), \
167 PARA_ERROR(OGGDEC_BADLINK, "invalid stream section or requested link corrupt"), \
168
169
170 #define GRAB_CLIENT_ERRORS \
171 PARA_ERROR(PEDANTIC_GRAB, "fd not ready and pedantic grab requested"), \
172 PARA_ERROR(GC_WRITE, "grab client write error"), \
173 PARA_ERROR(BAD_GC_SLOT, "invalid slot requested by grab client"), \
174 PARA_ERROR(BAD_GC_FILTER_NUM, "invalid filter number given"), \
175 PARA_ERROR(GC_SYNTAX, "grab client syntax error"), \
176 PARA_ERROR(GC_HELP_GIVEN, ""), /* not really an error */ \
177 PARA_ERROR(GC_VERSION_GIVEN, ""), /* not really an error */ \
178
179
180 #define MP3DEC_ERRORS \
181 PARA_ERROR(MAD_FRAME_DECODE, "mad frame decode error"), \
182 PARA_ERROR(MP3DEC_OVERRUN, "mp3 output buffer overrun"), \
183
184
185 #define FILTER_ERRORS \
186 PARA_ERROR(NO_FILTERS, "at least one filter must be given"), \
187 PARA_ERROR(FILTER_SYNTAX, "syntax error"), \
188
189
190 #define SIGNAL_ERRORS \
191 PARA_ERROR(SIGNAL_SIG_ERR, "signal() retured SIG_ERR"), \
192 PARA_ERROR(SIGNAL_READ, "read error from signal pipe"), \
193 PARA_ERROR(WAITPID, "waitpid error"), \
194 PARA_ERROR(SIGNAL_PIPE, "failed to setup signal pipe"), \
195
196
197 #define STRING_ERRORS \
198 PARA_ERROR(MKSTEMP, "mkstemp error: unable to create tmp file"), \
199 PARA_ERROR(FCHMOD, "fchmod error: can not set mode"), \
200
201
202 #define EXEC_ERRORS \
203 PARA_ERROR(DUP_PIPE, "exec error: can not create pipe"), \
204 PARA_ERROR(NULL_OPEN, "can not open /dev/null"), \
205
206
207 #define MP3_AFH_ERRORS \
208 PARA_ERROR(FREAD, "fread error"), \
209 PARA_ERROR(FSEEK, "fseek error"), \
210 PARA_ERROR(FRAME, "invalid mp3 frame"), \
211 PARA_ERROR(FRAME_LENGTH, "invalid frame length"), \
212 PARA_ERROR(MP3_NO_FILE, "invalid mp3 file pointer"), \
213 PARA_ERROR(MP3_INFO, "could not read mp3 info"), \
214 PARA_ERROR(MP3_REPOS, "mp3 repositioning error"), \
215 PARA_ERROR(HEADER_FREQ, "invalid header frequency"), \
216 PARA_ERROR(HEADER_BITRATE, "invalid header bitrate"), \
217
218
219 #define AAC_AFH_ERRORS \
220 PARA_ERROR(AAC_REPOS, "aac repositioning error"), \
221 PARA_ERROR(AAC_READ, "aac read error"), \
222 PARA_ERROR(STSZ, "did not find stcz atom"), \
223 PARA_ERROR(MP4ASC, "audio spec config error"), \
224
225
226 #define AAC_COMMON_ERRORS \
227 PARA_ERROR(AAC_BUF, "invalid buffer"), \
228 PARA_ERROR(ESDS, "did not find esds atom"), \
229 PARA_ERROR(STCO, "did not find stco atom"), \
230
231
232 #define OGG_AFH_ERRORS \
233 PARA_ERROR(OGG_READ, "ogg read error"), \
234 PARA_ERROR(SYNC_PAGEOUT, "ogg sync page-out error (no ogg file?)"), \
235 PARA_ERROR(STREAM_PAGEIN, "ogg stream page-in error (first page)"), \
236 PARA_ERROR(STREAM_PACKETOUT, "ogg stream packet-out error (first packet)"), \
237 PARA_ERROR(VORBIS, "vorbis synthesis header-in error (not vorbis?)"), \
238 PARA_ERROR(OGG_NO_FILE, "invalid ogg file pointer"), \
239 PARA_ERROR(OGG_OPEN, "ov_open error"), \
240 PARA_ERROR(OGG_INFO, "ov_info error"), \
241 PARA_ERROR(OGG_REPOS, "ogg repositioning error"), \
242
243
244 #define AFS_ERRORS \
245 PARA_ERROR(AUDIO_FORMAT, "audio format not recognized"), \
246 PARA_ERROR(FSTAT, "failed to fstat() audio file"), \
247
248
249 #define DB_ERRORS \
250 PARA_ERROR(GETCWD, "can not get current working directory"), \
251 PARA_ERROR(CHDIR, "can not change directory"), \
252 PARA_ERROR(OPENDIR, "can not open directory"), \
253 PARA_ERROR(LSTAT, "lstat error"), \
254
255
256 #define CRYPT_ERRORS \
257 PARA_ERROR(PRIVATE_KEY, "can not read private key"), \
258 PARA_ERROR(PUBLIC_KEY, "can not read public key"), \
259 PARA_ERROR(RSA, "RSA error"), \
260 PARA_ERROR(ENCRYPT, "encrypt error"), \
261 PARA_ERROR(DECRYPT, "decrypt error"), \
262 PARA_ERROR(CHALLENGE, "failed to read challenge"), \
263
264
265 #define HTTP_SEND_ERRORS \
266 PARA_ERROR(QUEUE, "packet queue overrun"), \
267 PARA_ERROR(WRITE_OK, "can not check whether fd is writable"), \
268
269
270 #define RANDOM_SELECTOR_ERRORS \
271 PARA_ERROR(FILE_COUNT, "audio file count exceeded"), \
272 PARA_ERROR(NOTHING_FOUND, "no audio files found"), \
273
274
275 #define MYSQL_SELECTOR_ERRORS \
276 PARA_ERROR(MYSQL_SYNTAX, "mysql syntax error"), \
277 PARA_ERROR(NOTCONN, "not connected to mysql server"), \
278 PARA_ERROR(TOOBIG, "mysql: file too large"), \
279 PARA_ERROR(NAMETOOLONG, "mysql: name too long"), \
280 PARA_ERROR(QFAILED, "mysql query failed"), \
281 PARA_ERROR(NOROW, "row is NULL"), \
282 PARA_ERROR(NOATTS, "can not get attributes from mysql table"), \
283 PARA_ERROR(NORESULT, "error while fetching mysql result"), \
284 PARA_ERROR(EMPTY_RESULT, "result is empty"), \
285 PARA_ERROR(ESCAPE, "can not escape string"), \
286 PARA_ERROR(GET_AUDIO_FILE, "can not get current audio file"), \
287 PARA_ERROR(GET_STREAM, "can not get current stream"), \
288 PARA_ERROR(NO_STREAM, "no such stream"), \
289 PARA_ERROR(AUDIO_FILE, "no such audio file"), \
290 PARA_ERROR(GET_QUERY, "can not get query for specified stream"), \
291 PARA_ERROR(TMPFILE, "error while writing temporary file"), \
292 PARA_ERROR(META, "can not get meta data"), \
293 PARA_ERROR(MYSQL_INIT, "can not initialize mysql connection"), \
294 PARA_ERROR(NO_MYSQL_PASSWD, "fatal: no mysql passord given"), \
295 PARA_ERROR(NO_AF_DIR, "fatal: audio file directory not given"), \
296
297
298 #define COMMAND_ERRORS \
299 PARA_ERROR(COMMAND_SYNTAX, "syntax error in command"), \
300 PARA_ERROR(AUTH, "did not receive auth request"), \
301 PARA_ERROR(BAD_SELECTOR, "no such audio file selector"), \
302 PARA_ERROR(NO_AUDIO_FILE, "no audio file"), \
303 PARA_ERROR(BAD_CMD, "invalid command"), \
304 PARA_ERROR(PERM, "permission denied"), \
305 PARA_ERROR(USERLIST, "failed to open user list file"), \
306 PARA_ERROR(BAD_USER, "you don't exist. Go away."), \
307 PARA_ERROR(LOCK, "lock error"), \
308 PARA_ERROR(SENDER_CMD, "command not supported by this sender"), \
309
310
311 #define PLAYLIST_SELECTOR_ERRORS \
312 PARA_ERROR(LOAD_PLAYLIST, "failed to load playlist"), \
313
314
315 #define IPC_ERRORS \
316 PARA_ERROR(SEM_GET, "failed to create semaphore"), \
317 PARA_ERROR(SEM_REMOVE, "can not remove semaphore"), \
318 PARA_ERROR(SHM_GET, "failed to allocate shared memory area"), \
319 PARA_ERROR(SHM_DESTROY, "failed to destroy shared memory area"), \
320 PARA_ERROR(SHM_ATTACH, "can not attach shared memory area"), \
321 PARA_ERROR(SHM_DETACH, "can not detach shared memory area"), \
322
323
324 #define DCCP_ERRORS \
325 PARA_ERROR(DCCP_SOCKET, "can not create dccp socket"), \
326 PARA_ERROR(DCCP_PACKET_SIZE, "failed to set dccp packet size"), \
327 PARA_ERROR(DCCP_SERVICE, "could not get service code"), \
328
329
330 #define DCCP_RECV_ERRORS \
331 PARA_ERROR(ADDR_INFO, "getaddrinfo error"), \
332 PARA_ERROR(DCCP_OVERRUN, "dccp output buffer buffer overrun"), \
333 PARA_ERROR(DCCP_CONNECT, "dccp connect error"), \
334
335
336 #define DCCP_SEND_ERRORS \
337 PARA_ERROR(DCCP_BIND, "dccp bind error"), \
338 PARA_ERROR(DCCP_LISTEN, "dccp listen error"), \
339 PARA_ERROR(DCCP_WRITE, "dccp write error"), \
340
341
342 #define FD_ERRORS \
343 PARA_ERROR(F_GETFL, "failed to get fd flags"), \
344 PARA_ERROR(F_SETFL, "failed to set fd flags"), \
345
346
347 #define WRITE_ERRORS \
348 PARA_ERROR(READ_HDR, "failed to read audio file header"), \
349 PARA_ERROR(READ_STDIN, "failed to read from stdin"), \
350 PARA_ERROR(WRITE_SYNTAX, "para_write syntax error"), \
351 PARA_ERROR(WRITE_OVERRUN, "buffer overrun"), \
352 PARA_ERROR(PREMATURE_END, "premature end of audio file"), \
353 PARA_ERROR(NO_WAV_HEADER, "wave header not found"), \
354 PARA_ERROR(NO_DELAY, "no initial delay"), \
355
356
357 #define ALSA_WRITER_ERRORS \
358 PARA_ERROR(BROKEN_CONF, "Broken alsa configuration"), \
359 PARA_ERROR(ACCESS_TYPE, "alsa access type not available"), \
360 PARA_ERROR(SAMPLE_FORMAT, "sample format not available"), \
361 PARA_ERROR(CHANNEL_COUNT, "channels count not available"), \
362 PARA_ERROR(HW_PARAMS, "unable to install hw params"), \
363 PARA_ERROR(SW_PARAMS, "unable to install sw params"), \
364 PARA_ERROR(BAD_PERIOD, "can not use period equal to buffer size"), \
365 PARA_ERROR(GET_XFER, "unable to obtain xfer align"), \
366 PARA_ERROR(SET_XFER, "snd_pcm_sw_params_set_xfer_align() failed"), \
367 PARA_ERROR(ALSA_WRITE, "alsa write error"), \
368 PARA_ERROR(PCM_OPEN, "unable to open pcm"), \
369 PARA_ERROR(SND_PCM_INFO, "pcm info error"), \
370 PARA_ERROR(GET_BUFFER_TIME, "snd_pcm_hw_params_get_buffer_time_max() failed"), \
371 PARA_ERROR(SET_BUFFER_TIME, "snd_pcm_hw_params_set_buffer_time_near() failed"), \
372 PARA_ERROR(SET_RATE, "snd_pcm_hw_params_set_rate_near failed"), \
373 PARA_ERROR(START_THRESHOLD, "snd_pcm_sw_params_set_start_threshold() failed"), \
374 PARA_ERROR(STOP_THRESHOLD, "snd_pcm_sw_params_set_stop_threshold() failed"), \
375 PARA_ERROR(ALSA_LOG, "snd_output_stdio_attach() failed"), \
376
377
378 #define FILE_WRITER_ERRORS \
379 PARA_ERROR(FW_WRITE, "file writer write error"), \
380 PARA_ERROR(FW_OPEN, "file writer: can not open output file"), \
381 PARA_ERROR(FW_NO_FILE, "task started without open file"), \
382
383
384 #define WRITE_COMMON_ERRORS \
385 PARA_ERROR(WRITE_COMMON_SYNTAX, "syntax error in write option"), \
386
387
388 #define AACDEC_ERRORS \
389 PARA_ERROR(AACDEC_INIT, "failed to init aac decoder"), \
390 PARA_ERROR(AAC_DECODE, "aac decode error"), \
391
392
393 /**
394 * the subsystem shift
395 *
396 * 255 error codes ought to be enough for every subsystem. Use the higher bits
397 * of the return value to encode the subsystem number
398 */
399 #define SS_SHIFT 8
400
401 /**
402 * compute the subsystem offset
403 *
404 * It is given by x * 2**8 where \a x is the subsystem number
405 */
406 #define SS_OFFSET(ss) (SS_ ## ss << SS_SHIFT)
407
408 /**
409 * make the enum of all errors of one subsystem
410 *
411 * As zero should not be an error, we define a dummy enum entry with value
412 * 2**ss. That lets the real errors start at 2**ss + 1.
413 */
414 #define SS_ENUM(ss) enum {\
415 E_ ## ss ## _DUMMY = SS_OFFSET(ss), \
416 ss ## _ERRORS}
417
418 /**
419 * determine the subsystem number from the error number
420 *
421 * Easy, it's just \a num / 2**8.
422 */
423 #define ERRNUM_TO_SS(num) ((num) >> SS_SHIFT)
424
425 /**
426 * determine the index of an error number
427 *
428 * Also easy: It's the lower 8 bits of num.
429 */
430 #define ERRNUM_TO_INDEX(num) (((1 << SS_SHIFT) - 1) & (num))
431
432 /**
433 * paraslash's version of strerror(3)
434 *
435 * expands to the error text of \a num (a string constant).
436 */
437 #define PARA_STRERROR(num) para_errlist[ERRNUM_TO_SS(num)] [ERRNUM_TO_INDEX(num)]
438
439 /**
440 * define the error list for one subsystem
441 #
442 * The first entry (index 0) is always the name of the subsystem
443 * Used by macros in config.h (generated by configure)
444 */
445 #define DEFINE_ERRLIST(ss) const char * ss ## _ERRLIST[] = {#ss, ss ## _ERRORS}
446
447 /**
448 * activate errors for one subsystem.
449 *
450 * Each executable needs only the error lists of those subssystems it is
451 * actually linked with. We always reserve space for NUM_SS char ** pointers,
452 * but only init those of the needed subsystems. This macro is used by macros
453 * in config.h (generated by configure).
454 */
455 #define PARA_ERRLIST(ss) [SS_ ## ss] = ss ## _ERRLIST
456
457 /**
458 * This is temporarily defined to expand to its first argument (prefixed by
459 * 'E_') and gets later redefined to expand to the error text only
460 */
461 #define PARA_ERROR(err, msg) E_ ## err
462
463 #define SS_NAME(ss) para_errlist[ss]? para_errlist[ss][0] : ""
464
465 /** \cond popcorn time */
466 SS_ENUM(GUI);
467 SS_ENUM(SCHED);
468 SS_ENUM(STDIN);
469 SS_ENUM(WAV);
470 SS_ENUM(COMPRESS);
471 SS_ENUM(TIME);
472 SS_ENUM(CLOSE_ON_FORK);
473 SS_ENUM(ORTP_RECV);
474 SS_ENUM(NET);
475 SS_ENUM(RECV);
476 SS_ENUM(AUDIOD);
477 SS_ENUM(EXEC);
478 SS_ENUM(SIGNAL);
479 SS_ENUM(STRING);
480 SS_ENUM(DAEMON);
481 SS_ENUM(STAT);
482 SS_ENUM(GRAB_CLIENT);
483 SS_ENUM(HTTP_RECV);
484 SS_ENUM(RECV_COMMON);
485 SS_ENUM(FILTER_CHAIN);
486 SS_ENUM(OGGDEC);
487 SS_ENUM(MP3DEC);
488 SS_ENUM(AACDEC);
489 SS_ENUM(FILTER);
490 SS_ENUM(MP3_AFH);
491 SS_ENUM(OGG_AFH);
492 SS_ENUM(AAC_AFH);
493 SS_ENUM(AAC_COMMON);
494 SS_ENUM(SERVER);
495 SS_ENUM(AFS);
496 SS_ENUM(COMMAND);
497 SS_ENUM(RANDOM_SELECTOR);
498 SS_ENUM(PLAYLIST_SELECTOR);
499 SS_ENUM(CRYPT);
500 SS_ENUM(HTTP_SEND);
501 SS_ENUM(ORTP_SEND);
502 SS_ENUM(DB);
503 SS_ENUM(MYSQL_SELECTOR);
504 SS_ENUM(IPC);
505 SS_ENUM(DCCP);
506 SS_ENUM(DCCP_RECV);
507 SS_ENUM(DCCP_SEND);
508 SS_ENUM(FD);
509 SS_ENUM(WRITE);
510 SS_ENUM(WRITE_COMMON);
511 SS_ENUM(ALSA_WRITER);
512 SS_ENUM(FILE_WRITER);
513 SS_ENUM(RINGBUFFER);
514 /** \endcond */
515 #undef PARA_ERROR
516 /* rest of the world only sees the error text */
517 #define PARA_ERROR(err, msg) msg