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common: Add a global variable to for the default error source.

For the shared code parts it is cumbersome to pass an error sourse
variable to each function.  Its value is always a constant for a given
binary and thus a global variable makes things a lot easier than the
former macro stuff.
* common/init.c (default_errsource): New global var.
(init_common_subsystems): Rename to _init_common_subsystems.  Set
DEFAULT_ERRSOURCE.
* common/init.h: Assert value of GPG_ERR_SOURCE_DEFAULT.
(init_common_subsystems): New macro.
* common/util.h (default_errsource): Add declaration.
* kbx/keybox-defs.h: Add some GPG_ERR_SOURCE_DEFAULT trickery.
This commit is contained in:
Werner Koch 2012-02-06 20:50:47 +01:00
parent ecda65498a
commit eb0faef81d
20 changed files with 80 additions and 33 deletions

View file

@ -63,7 +63,6 @@
#include "../common/utf8conv.h"
#include "../common/dynload.h"
#include "init.h"
#include "gettime.h"
/* Redefine asprintf by our estream version which uses our own memory
@ -113,6 +112,12 @@ typedef char **rl_completion_func_t (const char *, int, int);
#define xmalloc_clear(a) gcry_xcalloc (1, (a))
#define xmalloc_secure_clear(a) gcry_xcalloc_secure (1, (a))
/* The default error source of the application. This is different
from GPG_ERR_SOURCE_DEFAULT in that it does not depend on the
source file and thus is usable in code shared by applications.
Defined by init.c. */
extern gpg_err_source_t default_errsource;
/* Convenience function to return a gpg-error code for memory
allocation failures. This function makes sure that an error will
be returned even if accidently ERRNO is not set. */