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Remove errno save/restore where not necessary.

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This commit is contained in:
Simon Ruderich
2013-06-10 05:24:43 +02:00
parent fe3f7d4c63
commit dfd317650f
5 changed files with 48 additions and 22 deletions
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13
src/hookmacros.h
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@@ -26,7 +26,6 @@
#define _HOOK_PRE(type, name) \
int handle; \
int saved_errno = errno; \
DLSYM_FUNCTION(real_ ## name, #name);
#define _HOOK_PRE_FD(type, name, fd) \
type result; \
@@ -36,32 +35,24 @@
handle = check_handle_fd(fd); \
if (handle) { \
handle_fd_pre(fd); \
} \
errno = saved_errno;
}
#define _HOOK_PRE_FILE(type, name, file) \
type result; \
_HOOK_PRE(type, name) \
handle = check_handle_fd(fileno(file)); \
if (handle) { \
handle_file_pre(file); \
} \
errno = saved_errno;
/* Save and restore the errno to make sure we return the errno of the original
* function call. */
}
#define _HOOK_POST_FD_(fd) \
if (handle) { \
saved_errno = errno; \
handle_fd_post(fd); \
errno = saved_errno; \
}
#define _HOOK_POST_FD(fd) \
_HOOK_POST_FD_(fd) \
return result;
#define _HOOK_POST_FILE(file) \
if (handle) { \
saved_errno = errno; \
handle_file_post(file); \
errno = saved_errno; \
} \
return result;