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Change error message handling

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Change the handling of non-fatal errors.  Now the non-fatal error
messages are not shown in stderr and no assert() as default.  The
behavior can be changed with LIBASOUND_DEBUG environment variable.
This commit is contained in:
Takashi Iwai 2004-12-21 14:11:00 +00:00
parent 73aa2549d9
commit 2b54677fdb
9 changed files with 462 additions and 165 deletions
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31
src/error.c
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@ -100,6 +100,10 @@ snd_lib_error_handler_t snd_lib_error = snd_lib_error_default;
int snd_lib_error_set_handler(snd_lib_error_handler_t handler)
{
snd_lib_error = handler == NULL ? snd_lib_error_default : handler;
#ifndef NDEBUG
if (snd_lib_error != snd_lib_error_default)
snd_err_msg = snd_lib_error;
#endif
return 0;
}
@ -111,3 +115,30 @@ const char *snd_asoundlib_version(void)
{
return SND_LIB_VERSION_STR;
}
#ifndef NDEBUG
/*
* internal error handling
*/
static void snd_err_msg_default(const char *file, int line, const char *function, int err, const char *fmt, ...)
{
va_list arg;
const char *verbose;
verbose = getenv("LIBASOUND_DEBUG");
if (! verbose || ! *verbose)
return;
va_start(arg, fmt);
fprintf(stderr, "ALSA lib %s:%i:(%s) ", file, line, function);
vfprintf(stderr, fmt, arg);
if (err)
fprintf(stderr, ": %s", snd_strerror(err));
putc('\n', stderr);
va_end(arg);
if (! strcmp(verbose, "assert"))
assert(0);
}
snd_lib_error_handler_t snd_err_msg = snd_err_msg_default;
#endif