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Diffstat (limited to 'ruby_1_8_6/missing/flock.c')
-rw-r--r--ruby_1_8_6/missing/flock.c135
1 files changed, 0 insertions, 135 deletions
diff --git a/ruby_1_8_6/missing/flock.c b/ruby_1_8_6/missing/flock.c
deleted file mode 100644
index 5f6b41c357..0000000000
--- a/ruby_1_8_6/missing/flock.c
+++ /dev/null
@@ -1,135 +0,0 @@
-#include "config.h"
-
-#if defined _WIN32
-#elif defined HAVE_FCNTL && defined HAVE_FCNTL_H
-
-/* These are the flock() constants. Since this sytems doesn't have
- flock(), the values of the constants are probably not available.
-*/
-# ifndef LOCK_SH
-# define LOCK_SH 1
-# endif
-# ifndef LOCK_EX
-# define LOCK_EX 2
-# endif
-# ifndef LOCK_NB
-# define LOCK_NB 4
-# endif
-# ifndef LOCK_UN
-# define LOCK_UN 8
-# endif
-
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-
-int
-flock(fd, operation)
- int fd;
- int operation;
-{
- struct flock lock;
-
- switch (operation & ~LOCK_NB) {
- case LOCK_SH:
- lock.l_type = F_RDLCK;
- break;
- case LOCK_EX:
- lock.l_type = F_WRLCK;
- break;
- case LOCK_UN:
- lock.l_type = F_UNLCK;
- break;
- default:
- errno = EINVAL;
- return -1;
- }
- lock.l_whence = SEEK_SET;
- lock.l_start = lock.l_len = 0L;
-
- return fcntl(fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &lock);
-}
-
-#elif defined(HAVE_LOCKF)
-
-#include <unistd.h>
-#include <errno.h>
-
-/* Emulate flock() with lockf() or fcntl(). This is just to increase
- portability of scripts. The calls might not be completely
- interchangeable. What's really needed is a good file
- locking module.
-*/
-
-# ifndef F_ULOCK
-# define F_ULOCK 0 /* Unlock a previously locked region */
-# endif
-# ifndef F_LOCK
-# define F_LOCK 1 /* Lock a region for exclusive use */
-# endif
-# ifndef F_TLOCK
-# define F_TLOCK 2 /* Test and lock a region for exclusive use */
-# endif
-# ifndef F_TEST
-# define F_TEST 3 /* Test a region for other processes locks */
-# endif
-
-/* These are the flock() constants. Since this sytems doesn't have
- flock(), the values of the constants are probably not available.
-*/
-# ifndef LOCK_SH
-# define LOCK_SH 1
-# endif
-# ifndef LOCK_EX
-# define LOCK_EX 2
-# endif
-# ifndef LOCK_NB
-# define LOCK_NB 4
-# endif
-# ifndef LOCK_UN
-# define LOCK_UN 8
-# endif
-
-int
-flock(fd, operation)
- int fd;
- int operation;
-{
- switch (operation) {
-
- /* LOCK_SH - get a shared lock */
- case LOCK_SH:
- rb_notimplement();
- return -1;
- /* LOCK_EX - get an exclusive lock */
- case LOCK_EX:
- return lockf (fd, F_LOCK, 0);
-
- /* LOCK_SH|LOCK_NB - get a non-blocking shared lock */
- case LOCK_SH|LOCK_NB:
- rb_notimplement();
- return -1;
- /* LOCK_EX|LOCK_NB - get a non-blocking exclusive lock */
- case LOCK_EX|LOCK_NB:
- return lockf (fd, F_TLOCK, 0);
-
- /* LOCK_UN - unlock */
- case LOCK_UN:
- return lockf (fd, F_ULOCK, 0);
-
- /* Default - can't decipher operation */
- default:
- errno = EINVAL;
- return -1;
- }
-}
-#else
-int
-flock(fd, operation)
- int fd;
- int operation;
-{
- rb_notimplement();
- return -1;
-}
-#endif