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/*
* (C) Finite State Machine Labs Inc. 2000 business@fsmlabs.com
*
* Released under the terms of GPL 2.
* Open RTLinux makes use of a patented process described in
* US Patent 5,995,745. Use of this process is governed
* by the Open RTLinux Patent License which can be obtained from
* www.fsmlabs.com/PATENT or by sending email to
* licensequestions@fsmlabs.com
*/
#include <rtlinux_debug.h>
#include <rtlinux_signal.h>
#include <stdio.h>
#include <errno.h>
void syscall_generator(int whatever)
{
/* we can't call system calls from RTLinux signal handlers -- yet.
* -Nathan */
printf("here i am\n");
}
int main(void)
{
struct rtlinux_sigaction mysig, oldsig;
int i = 5;
mysig.sa_handler = syscall_generator;
mysig.sa_flags = RTLINUX_SA_ONESHOT;
mysig.sa_period = NSECS_PER_SEC / 4;
if (rtlinux_sigaction(RTLINUX_SIGTIMER1, &mysig, &oldsig)) {
perror("rtlinux_sigaction");
return errno;
}
fprintf(stderr, "Restoring signal handler to default in %d\n", i);
while (i > 0) {
sleep(1);
i--;
fprintf(stderr, "%d\n", i);
}
mysig.sa_handler = RTLINUX_SIG_DFL;
if (rtlinux_sigaction(RTLINUX_SIGTIMER0, &mysig, &oldsig)) {
perror("rtlinux_sigaction");
return errno;
}
return 0;
}
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