Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.1 / guicast / sema.h

diff --git a/cinelerra-5.1/guicast/sema.h b/cinelerra-5.1/guicast/sema.h
new file mode 100644 (file)
index 0000000..2d85f29
--- /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