From 57045df5fe3ec557e57dc7434ac1a07b5521bffc Mon Sep 17 00:00:00 2001 From: Guenter Geiger Date: Mon, 29 Jul 2002 17:06:19 +0000 Subject: 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 --- pd/src/s_watchdog.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 pd/src/s_watchdog.c (limited to 'pd/src/s_watchdog.c') 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 +#include +#include +#include +#include + +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"); + } +} -- cgit v1.2.1