X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fguicast%2Fsema.h;fp=cinelerra-5.1%2Fguicast%2Fsema.h;h=2d85f293ac4aeb430c744b4b5fadca263a03fbee;hb=30bdb85eb33a8ee7ba675038a86c6be59c43d7bd;hp=0000000000000000000000000000000000000000;hpb=52fcc46226f9df46f9ce9d0566dc568455a7db0b;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.1/guicast/sema.h b/cinelerra-5.1/guicast/sema.h
new file mode 100644
index 00000000..2d85f293
--- /dev/null
+++ b/cinelerra-5.1/guicast/sema.h
@@ -0,0 +1,89 @@
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * 
+ */
+
+#ifndef SEMA_H
+#define SEMA_H
+
+
+#include <semaphore.h>
+
+class Sema
+{
+public:
+	Sema(int init_value = 1, const char *title = 0);
+	~Sema();
+
+	void lock(const char *location = 0);
+	void unlock();
+	int get_value();
+	void reset();
+
+	sem_t sem;
+	const char *title;
+	int init_value;
+};
+
+
+
+
+
+
+
+
+#if 0
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+#include <sys/types.h>
+
+union semun {
+   int val; /* used for SETVAL only */
+   struct semid_ds *buf; /* for IPC_STAT and IPC_SET */
+   ushort *array;  /* used for GETALL and SETALL */
+};
+
+class Sema
+{
+public:
+	Sema(int id = -1, int number = 1);
+	~Sema();
+
+	int lock(int number = 0);
+	int unlock(int number = 0);
+	int get_value(int number = 0);
+	int get_id();
+
+	int semid;
+	int client;
+	int semas;
+	semun arg;
+};
+
+#endif
+
+
+
+
+
+#endif