diff options
Diffstat (limited to 'lib/libpthread/thread/thr_write.c')
| -rw-r--r-- | lib/libpthread/thread/thr_write.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/lib/libpthread/thread/thr_write.c b/lib/libpthread/thread/thr_write.c index 773f615..78940e2 100644 --- a/lib/libpthread/thread/thr_write.c +++ b/lib/libpthread/thread/thr_write.c @@ -29,7 +29,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $Id: uthread_write.c,v 1.5 1998/04/29 09:59:33 jb Exp $ + * $Id: uthread_write.c,v 1.6 1998/05/25 21:45:50 jb Exp $ * */ #include <sys/types.h> @@ -50,9 +50,12 @@ write(int fd, const void *buf, size_t nbytes) ssize_t num = 0; ssize_t ret; + /* POSIX says to do just this: */ + if (nbytes == 0) + return (0); + /* Lock the file descriptor for write: */ - if ((ret = _thread_fd_lock(fd, FD_WRITE, NULL, - __FILE__, __LINE__)) == 0) { + if ((ret = _FD_LOCK(fd, FD_WRITE, NULL)) == 0) { /* Check if file operations are to block */ blocking = ((_thread_fd_table[fd]->flags & O_NONBLOCK) == 0); @@ -113,7 +116,7 @@ write(int fd, const void *buf, size_t nbytes) /* Return the number of bytes written: */ ret = num; } - _thread_fd_unlock(fd, FD_RDWR); + _FD_UNLOCK(fd, FD_RDWR); } return (ret); } |
