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| author | julian <julian@FreeBSD.org> | 1996-01-22 00:02:33 +0000 |
|---|---|---|
| committer | julian <julian@FreeBSD.org> | 1996-01-22 00:02:33 +0000 |
| commit | 619b731f5bb5e09dcf1eaf1fbd96383ca64398fd (patch) | |
| tree | a89c7f50ec371cef4418259b9dccdd31ebb2f61f /lib/libc/sys/ftruncate.c | |
| parent | 663b14fb2f3198fb0bfb62ae16b6b56c2a4dd055 (diff) | |
| download | FreeBSD-src-619b731f5bb5e09dcf1eaf1fbd96383ca64398fd.zip FreeBSD-src-619b731f5bb5e09dcf1eaf1fbd96383ca64398fd.tar.gz | |
Reviewed by: julian and (hsu?)
Submitted by: John Birrel(L?)
changes for threadsafe operations
Diffstat (limited to 'lib/libc/sys/ftruncate.c')
| -rw-r--r-- | lib/libc/sys/ftruncate.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/libc/sys/ftruncate.c b/lib/libc/sys/ftruncate.c index 2f3ae6d..72a6a91 100644 --- a/lib/libc/sys/ftruncate.c +++ b/lib/libc/sys/ftruncate.c @@ -37,6 +37,11 @@ static char sccsid[] = "@(#)ftruncate.c 8.1 (Berkeley) 6/17/93"; #include <sys/types.h> #include <sys/syscall.h> +#include <unistd.h> +#ifdef _THREAD_SAFE +#include <pthread.h> +#include "pthread_private.h" +#endif /* * This function provides 64-bit offset padding that @@ -48,5 +53,16 @@ ftruncate(fd, length) off_t length; { +#ifdef _THREAD_SAFE + int retval; + if (_thread_fd_lock(fd, FD_RDWR, NULL,__FILE__,__LINE__) != 0) { + retval = -1; + } else { + retval = __syscall((quad_t)SYS_ftruncate, fd, 0, length); + _thread_fd_unlock(fd, FD_RDWR); + } + return(retval); +#else return(__syscall((quad_t)SYS_ftruncate, fd, 0, length)); +#endif } |
