/*
- * Copyright (C) 2006-2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2006-2008 Andre Noll <maan@systemlinux.org>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
/* these do not need error handling (yet) */
#define SERVER_ERRORS
-#define CLIENT_ERRORS
#define WAV_ERRORS
#define COMPRESS_ERRORS
#define TIME_ERRORS
#define RINGBUFFER_ERRORS
#define SCORE_ERRORS
#define SHA1_ERRORS
-#define AFH_COMMON_ERRORS
#define RBTREE_ERRORS
#define RECV_ERRORS
+#define SEND_COMMON_ERRORS
+#define STDOUT_ERRORS
+
extern const char **para_errlist[];
+#define FADE_ERRORS \
+ PARA_ERROR(FADE_SYNTAX, "fade syntax error"), \
+
+
+#define CLIENT_ERRORS \
+ PARA_ERROR(TASK_STARTED, "task started"), \
+
+
+#define AFH_ERRORS \
+ PARA_ERROR(AFH_SYNTAX, "afh syntax error"), \
+ PARA_ERROR(AFH_SHORT_WRITE, "afh short write"), \
+
+
+#define AFH_COMMON_ERRORS \
+ PARA_ERROR(AUDIO_FORMAT, "audio format not recognized"), \
+
+
+#define ACL_ERRORS \
+ PARA_ERROR(ACL_PERM, "access denied by acl"), \
+
+
#define FSCK_ERRORS \
PARA_ERROR(FSCK_SYNTAX, "fsck syntax error"), \
PARA_ERROR(RANGE_VIOLATION, "range violation detected, very bad"), \
PARA_ERROR(INDEX_CORRUPTION, "index corruption detected"), \
PARA_ERROR(INVALID_OBJECT, "reference to invalid object"), \
PARA_ERROR(STAT, "can not stat file"), \
- PARA_ERROR(RENAME, "rename failed"), \
PARA_ERROR(WRITE, "write error"), \
PARA_ERROR(LSEEK, "lseek error"), \
PARA_ERROR(BUSY, "table is busy"), \
PARA_ERROR(AFS_SYNTAX, "afs syntax error"), \
PARA_ERROR(AFS_SIGNAL, "afs caught deadly signal"), \
PARA_ERROR(AFS_SOCKET, "afs socket not writable"), \
- PARA_ERROR(AFS_PARENT_DIED, "fatal: server process terminated"), \
PARA_ERROR(AFS_SHORT_READ, "short read from afs socket"), \
PARA_ERROR(NO_CONFIG, "config file not found"), \
PARA_ERROR(CLIENT_AUTH, "authentication failed"), \
PARA_ERROR(SERVER_EOF, "connection closed by para_server"), \
- PARA_ERROR(HANDSHAKE_COMPLETE, ""), /* not really an error */ \
#define SCHED_ERRORS \
PARA_ERROR(TASK_KILLED, "task killed"), \
+ PARA_ERROR(TASK_UNREGISTERED, "task has been unscheduled"), \
PARA_ERROR(NO_SUCH_TASK, "task not found"), \
PARA_ERROR(NOT_INITIALIZED, "scheduler not yet initialized"), \
#define STDIN_ERRORS \
- PARA_ERROR(STDIN_READ, "failed to read from stdin"), \
PARA_ERROR(STDIN_EOF, "end of file"), \
-#define STDOUT_ERRORS \
- PARA_ERROR(STDOUT_WRITE, "failed to write to stdout"), \
-
#define NET_ERRORS \
PARA_ERROR(NAME_TOO_LONG, "name too long for struct sockaddr_un"), \
PARA_ERROR(NO_MORE_SLOTS, "no more empty slots"), \
PARA_ERROR(MISSING_COLON, "syntax error: missing colon"), \
PARA_ERROR(UNSUPPORTED_AUDIO_FORMAT, "given audio format not supported"), \
- PARA_ERROR(SIGNAL_CAUGHT, "caught signal"), \
PARA_ERROR(NOT_PLAYING, "not playing"), \
+ PARA_ERROR(AUDIOD_OFF, "audiod switched off"), \
+ PARA_ERROR(STATUS_TIMEOUT, "timeout reading server status"), \
#define AUDIOD_COMMAND_ERRORS \
#define SIGNAL_ERRORS \
PARA_ERROR(SIGNAL_SIG_ERR, "signal() returned SIG_ERR"), \
- PARA_ERROR(SIGNAL_READ, "read error from signal pipe"), \
#define STRING_ERRORS \
- PARA_ERROR(MKSTEMP, "mkstemp error: unable to create tmp file"), \
- PARA_ERROR(FCHMOD, "fchmod error: can not set mode"), \
PARA_ERROR(ATOI_OVERFLOW, "value too large"), \
PARA_ERROR(STRTOLL, "unknown strtoll error"), \
PARA_ERROR(ATOI_NO_DIGITS, "no digits found in string"), \
#define EXEC_ERRORS \
PARA_ERROR(DUP_PIPE, "exec error: can not create pipe"), \
- PARA_ERROR(NULL_OPEN, "can not open /dev/null"), \
#define MP3_AFH_ERRORS \
#define VSS_ERRORS \
- PARA_ERROR(BAD_AUDIO_FILE_SUFFIX, "unknown suffix"), \
- PARA_ERROR(AUDIO_FORMAT, "audio format not recognized"), \
PARA_ERROR(CHUNK, "unable to get chunk"), \
- PARA_ERROR(SHORT_AFS_READ, "short read from afs socket"), \
PARA_ERROR(NOFD, "did not receive open fd from afs"), \
#define HTTP_SEND_ERRORS \
- PARA_ERROR(WRITE_OK, "can not check whether fd is writable"), \
- PARA_ERROR(SEND_QUEUED_CHUNK, "failed to send queued chunk"), \
+ PARA_ERROR(MAX_CLIENTS, "maximal number of clients exceeded"), \
#define COMMAND_ERRORS \
#define DCCP_SEND_ERRORS \
- PARA_ERROR(DCCP_WRITE, "dccp write error"), \
#define FD_ERRORS \
PARA_ERROR(FGETS, "fgets error"), \
- PARA_ERROR(CHDIR, "failed to change directory"), \
- PARA_ERROR(OPEN, "failed to open file"), \
- PARA_ERROR(CHDIR_PERM, "insufficient permissions to chdir"), \
PARA_ERROR(EMPTY, "file empty"), \
PARA_ERROR(MMAP, "mmap error"), \
- PARA_ERROR(MUNMAP, "munmap failed"), \
#define WRITE_ERRORS \
PARA_ERROR(WRITE_SYNTAX, "para_write syntax error"), \
- PARA_ERROR(PREMATURE_END, "premature end of audio file"), \
PARA_ERROR(NO_WAV_HEADER, "wave header not found"), \
PARA_ERROR(WAV_HEADER_SUCCESS, "successfully read wave header"), \
PARA_ERROR(NO_DELAY, "no initial delay"), \
PARA_ERROR(HW_PARAMS, "unable to install hw params"), \
PARA_ERROR(SW_PARAMS, "unable to install sw params"), \
PARA_ERROR(BAD_PERIOD, "can not use period equal to buffer size"), \
- PARA_ERROR(GET_XFER, "unable to obtain xfer align"), \
- PARA_ERROR(SET_XFER, "snd_pcm_sw_params_set_xfer_align() failed"), \
PARA_ERROR(ALSA_WRITE, "alsa write error"), \
PARA_ERROR(PCM_OPEN, "unable to open pcm"), \
PARA_ERROR(SND_PCM_INFO, "pcm info error"), \
*/
#define ERRNUM_TO_INDEX(num) (((1 << SS_SHIFT) - 1) & (num))
+/**
+ * This bit indicates whether a number is considered a system error number
+ * If yes, the system errno is just the result of clearing this bit from
+ * the given number.
+ */
#define SYSTEM_ERROR_BIT 30
+/** Check whether the system error bit is set. */
#define IS_SYSTEM_ERROR(num) (!!((num) & (1 << SYSTEM_ERROR_BIT)))
+/** Set the system error bit for the given number. */
#define ERRNO_TO_PARA_ERROR(num) ((num) | (1 << SYSTEM_ERROR_BIT))
-static inline int is_errno(int val, int _errno)
+/** Check whether a given number is a system error number.
+ *
+ * \param num The value to be checked.
+ * \param _errno The system error number.
+ *
+ * \return True if \a num is paraslash's representation of the system
+ * error identified by \a _errno.
+ */
+_static_inline_ int is_errno(int num, int _errno)
{
- assert(val > 0 && _errno > 0);
- return ERRNO_TO_PARA_ERROR(_errno) == val;
+ assert(num > 0 && _errno > 0);
+ return ERRNO_TO_PARA_ERROR(_errno) == num;
}
/**
* Paraslash's version of strerror(3).
*
- * Expands to the error text of \a num (a string constant).
+ * \param num The error number.
+ *
+ * \return The error text of \a num.
*/
-#define PARA_STRERROR(num) IS_SYSTEM_ERROR(num)? \
- strerror((num) & ((1 << SYSTEM_ERROR_BIT) - 1)) : \
- para_errlist[ERRNUM_TO_SS(num)] [ERRNUM_TO_INDEX(num)]
-
+_static_inline_ const char *para_strerror(int num)
+{
+ assert(num > 0);
+ if (IS_SYSTEM_ERROR(num))
+ return strerror((num) & ((1 << SYSTEM_ERROR_BIT) - 1));
+ else
+ return para_errlist[ERRNUM_TO_SS(num)][ERRNUM_TO_INDEX(num)];
+}
/**
* Define the error list for one subsystem.
#
projects / paraslash.git / blobdiff