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

1 files changed, 82 insertions, 0 deletions

diff --git a/lib/libpthread/thread/thr_open.c b/lib/libpthread/thread/thr_open.c
new file mode 100644
index 0000000..ead651e
--- /dev/null
+++ 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