upstream/1.1.0_cvsrelease/1.1.0_cvs

1 files changed, 89 insertions, 0 deletions

diff --git a/lib/libpthread/include/cond.h b/lib/libpthread/include/cond.h
new file mode 100644
index 000000000000..82c064eac028
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+++ b/lib/libpthread/include/cond.h
@@ -0,0 +1,89 @@
+/* ==== cond.h ============================================================
+ * Copyright (c) 1993 by Chris Provenzano, proven@mit.edu
+ * 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 Chris Provenzano.
+ * 4. The name of Chris Provenzano may not be used to endorse or promote 
+ *	  products derived from this software without specific prior written
+ *	  permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO ``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 CHRIS PROVENZANO 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.
+ *
+ * Description : mutex header.
+ *
+ *  1.00 93/10/30 proven
+ *      -Started coding this file.
+ */
+
+/*
+ * New cond structures
+ */
+enum pthread_cond_type {
+	COND_TYPE_FAST,
+	COND_TYPE_STATIC_FAST,
+	COND_TYPE_METERED,
+	COND_TYPE_DEBUG, /* Debug conds will have lots of options */
+	COND_TYPE_MAX
+};
+
+typedef struct pthread_cond {
+	enum pthread_cond_type	c_type;
+	struct pthread_queue	c_queue;
+	semaphore				c_lock;	
+	void				  * c_data;
+	long					c_flags;
+} pthread_cond_t;
+
+typedef struct pthread_cond_attr {
+	enum pthread_cond_type	c_type;
+	long					c_flags;
+} pthread_condattr_t;
+
+/*
+ * Flags for conds.
+ */
+#define COND_FLAGS_PRIVATE	0x01
+#define COND_FLAGS_INITED	0x02
+#define COND_FLAGS_BUSY		0x04
+
+/*
+ * Static cond initialization values.
+ */
+#define PTHREAD_COND_INITIALIZER	\
+{ COND_TYPE_STATIC_FAST, PTHREAD_QUEUE_INITIALIZER, \
+	 NULL, SEMAPHORE_CLEAR, COND_FLAGS_INITED }
+
+/*
+ * New functions
+ */
+
+__BEGIN_DECLS
+
+int     pthread_cond_init  		__P((pthread_cond_t *, pthread_condattr_t *));
+int     pthread_cond_wait      	__P((pthread_cond_t *, pthread_mutex_t *));
+int     pthread_cond_signal    	__P((pthread_cond_t *));
+int     pthread_cond_broadcast	__P((pthread_cond_t *));
+int     pthread_cond_destroy   	__P((pthread_cond_t *));
+
+__END_DECLS
+