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// SPDX-License-Identifier: MIT
#include <sys/wait.h>
#include <sys/types.h>
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>
#include <errno.h>
#include "jitterdebugger.h"
static pid_t bpid;
int start_workload(const char *cmd)
{
int err;
if (!cmd)
return 0;
bpid = fork();
if (bpid > 0)
return 0;
if (bpid < 0)
return errno;
err = setpgid(0,0);
if (err)
err_handler(errno, "setpgid()");
printf("start background workload: %s\n", cmd);
err = execl("/bin/sh", "sh", "-c", cmd, (char *)0);
if (err) {
err_handler(err, "execl()");
exit(EXIT_FAILURE);
}
exit(0);
}
void stop_workload(void)
{
int status;
int err;
if (bpid == 0)
return;
err = killpg(bpid, SIGTERM);
if (err)
err_handler(errno, "kill()");
if (!waitpid(bpid, &status, 0))
err_handler(errno, "waitpid()");
err = WEXITSTATUS(status);
if (WIFEXITED(status) && err)
warn_handler("workload exited with %d", err);
}
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