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authorjulian <julian@FreeBSD.org>1996-01-22 00:23:58 +0000
committerjulian <julian@FreeBSD.org>1996-01-22 00:23:58 +0000
commit529743d354ac402b1302b397159146fa46c180c5 (patch)
treed93df8a19a0cab699bfc2c0b9e4bc691251efa16 /lib/libpthread/thread/thr_open.c
parent619b731f5bb5e09dcf1eaf1fbd96383ca64398fd (diff)
downloadFreeBSD-src-529743d354ac402b1302b397159146fa46c180c5.zip
FreeBSD-src-529743d354ac402b1302b397159146fa46c180c5.tar.gz
Reviewed by: julian
Submitted by: john birrel One version of the pthreads library another will follow with differnt actions under some cases.. not QUITE complete
Diffstat (limited to 'lib/libpthread/thread/thr_open.c')
-rw-r--r--lib/libpthread/thread/thr_open.c82
1 files changed, 82 insertions, 0 deletions
diff --git a/lib/libpthread/thread/thr_open.c b/lib/libpthread/thread/thr_open.c
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+++ b/lib/libpthread/thread/thr_open.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by John Birrell.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+#include <stdarg.h>
+#include <fcntl.h>
+#include <dirent.h>
+#ifdef _THREAD_SAFE
+#include <pthread.h>
+#include "pthread_private.h"
+
+int
+open(const char *path, int flags,...)
+{
+ int fd;
+ int mode = 0;
+ int status;
+ va_list ap;
+
+ /* Block signals: */
+ _thread_kern_sig_block(&status);
+
+ /* Check if the file is being created: */
+ if (flags & O_CREAT) {
+ /* Get the creation mode: */
+ va_start(ap, flags);
+ mode = va_arg(ap, int);
+ va_end(ap);
+ }
+ /* Open the file, forcing it to use non-blocking I/O operations: */
+ if ((fd = _thread_sys_open(path, flags | O_NONBLOCK, mode)) < 0) {
+ }
+ /* Initialise the file descriptor table entry: */
+ else if (_thread_fd_table_init(fd) != 0) {
+ /* Quietly close the file: */
+ _thread_sys_close(fd);
+
+ /* Reset the file descriptor: */
+ fd = -1;
+ } else {
+ /*
+ * Save the file open flags so that they can be checked
+ * later:
+ */
+ _thread_fd_table[fd]->flags = flags;
+ }
+
+ /* Unblock signals: */
+ _thread_kern_sig_unblock(status);
+
+ /* Return the file descriptor or -1 on error: */
+ return (fd);
+}
+#endif
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