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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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14
NOTES
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@ -14,3 +14,17 @@ this API, because they are no longer used:
#define ALSA_PCM_NEW_HW_PARAMS_API
#define ALSA_PCM_NEW_SW_PARAMS_API
Verbose Error Messages
======================
Since version 1.0.8, assert() for some non-fatal errors are removed
and error messages are no longer shown to stderr as default. Instead,
the error messages appear only when the environment variable
LIBASOUND_DEBUG is set. When LIBASOUND_DEBUG=assert is set, the
default error message handler calls assert() to catch with a
debugger.
This feature is disabled when --with-debug=no is passed to configure,
i.e. no strict checking is done in alsa-lib.