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| author | Sergey Poznyakoff <gray@gnu.org.ua> | 2017-12-19 09:32:07 +0200 |
|---|---|---|
| committer | Sergey Poznyakoff <gray@gnu.org.ua> | 2017-12-19 09:32:07 +0200 |
| commit | c175231e2781abd17eabf412cfb597654a076c7b (patch) | |
| tree | 6a41ee39754fb66646b75bcbdcb80a214c897694 /src | |
| parent | 33904b85bae29474da7ed6df3a5c1735c3162d57 (diff) | |
| download | gdbm-c175231e2781abd17eabf412cfb597654a076c7b.tar.gz gdbm-c175231e2781abd17eabf412cfb597654a076c7b.tar.bz2 | |
Make gdbm_error thread-safe
* src/gdbm.h.in (gdbm_errno_location): New extern
(gdbm_errno): Change to a define.
* src/gdbmerrno.c (gdbm_errno_location): New function.
(gdbm_errno_storage): Thread-safe storage for the last errno.
Diffstat (limited to 'src')
| -rw-r--r-- | src/gdbm.h.in | 3 | ||||
| -rw-r--r-- | src/gdbmerrno.c | 8 |
2 files changed, 9 insertions, 2 deletions
diff --git a/src/gdbm.h.in b/src/gdbm.h.in index de0d2b9..26bcaa4 100644 --- a/src/gdbm.h.in +++ b/src/gdbm.h.in @@ -227,7 +227,8 @@ extern int gdbm_copy_meta (GDBM_FILE dst, GDBM_FILE src); # define GDBM_UNKNOWN_UPDATE GDBM_UNKNOWN_ERROR typedef int gdbm_error; -extern gdbm_error gdbm_errno; +extern int *gdbm_errno_location (void); +#define gdbm_errno (*gdbm_errno_location ()) extern const char * const gdbm_errlist[]; extern int const gdbm_syserr[]; diff --git a/src/gdbmerrno.c b/src/gdbmerrno.c index 87c6401..12748b8 100644 --- a/src/gdbmerrno.c +++ b/src/gdbmerrno.c @@ -23,7 +23,13 @@ #include "gdbmdefs.h" /* The dbm error number is placed in the variable GDBM_ERRNO. */ -gdbm_error gdbm_errno = GDBM_NO_ERROR; +static __thread gdbm_error gdbm_errno_storage = GDBM_NO_ERROR; + +int * +gdbm_errno_location (void) +{ + return &gdbm_errno_storage; +} /* Store error code EC in the database structure DBF and in the global variable gdbm_error. |