diff options
author | Jannis Hoffmann <jannis@fehcom.de> | 2024-07-09 13:58:20 +0200 |
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committer | Jannis Hoffmann <jannis@fehcom.de> | 2024-07-09 13:58:20 +0200 |
commit | 249866e3d1e11dc72eaa1305f4bb479ded92ef38 (patch) | |
tree | 7118c5f58e29fe61c100e4d067bb90ba8d52589e /src/lock.c | |
parent | 96cf8dffe4f7b0b910f790066ae622dc429eb522 (diff) |
reorganized file structure
Moved c files into src/.
Corrected VERSION file.
Removed BUILD and FILES.
Diffstat (limited to 'src/lock.c')
-rw-r--r-- | src/lock.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/lock.c b/src/lock.c new file mode 100644 index 0000000..4ac6b40 --- /dev/null +++ b/src/lock.c @@ -0,0 +1,22 @@ +#include <unistd.h> +#include <sys/types.h> +#include <sys/file.h> +#include <fcntl.h> +#include "lock.h" + +/** + @file lock.c + @author djb + @source qmail + @brief locking of resources +*/ + +#ifdef HASFLOCK +int lock_ex(int fd) { return flock(fd,LOCK_EX); } +int lock_exnb(int fd) { return flock(fd,LOCK_EX | LOCK_NB); } +int lock_un(int fd) { return flock(fd,LOCK_UN); } +#else +int lock_ex(int fd) { return lockf(fd,1,0); } +int lock_exnb(int fd) { return lockf(fd,2,0); } +int lock_un(int fd) { return lockf(fd,0,0); } +#endif |