This commit was generated by cvs2svn to compensate for changes in r58,

which included commits to RCS files with non-trunk default branches.

svn path=/trunk/; revision=59

1 files changed, 47 insertions, 0 deletions

diff --git a/pd/src/s_watchdog.c b/pd/src/s_watchdog.c
new file mode 100644
index 00000000..a2122824
--- /dev/null
+++ b/pd/src/s_watchdog.c
@@ -0,0 +1,47 @@
+/* Copyright (c) 1997-2000 Miller Puckette.
+* For information on usage and redistribution, and for a DISCLAIMER OF ALL
+* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
+
+/* This file is compiled into the separate program, "pd-watchdog," which
+tries to prevent Pd from locking up the processor if it's at realtime
+priority.  Linux only.  Invoked from s_inter.c. */
+
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdio.h>
+
+int main(int argc, char **argv)
+{
+    int happy = 1;
+    while (1)
+    {
+    	struct timeval timout;
+    	fd_set readset;
+	if (happy)
+	{
+    	    timout.tv_sec = 5;
+    	    timout.tv_usec = 0;
+	}
+	else
+	{
+    	    timout.tv_sec = 2;
+    	    timout.tv_usec = 0;
+	}
+	FD_ZERO(&readset);
+    	FD_SET(0, &readset);
+    	select(1, &readset, 0, 0, &timout);
+    	if (FD_ISSET(0, &readset))
+	{
+	    char buf[100];
+	    happy = 1;
+	    if (read(0, &buf, 100) <= 0)
+		return (0);
+	    else continue;
+	}
+	happy = 0;
+	kill(getppid(), SIGHUP);
+	fprintf(stderr, "watchdog: signaling pd...\n"); 
+    }
+}