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android: Monitor child process termination

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This commit is contained in:
Marcel Holtmann 2013-10-31 14:56:35 -07:00
parent d98c7855f4
commit 86eb638a46
1 changed files with 38 additions and 0 deletions
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38
android/system-emulator.c
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@ -29,9 +29,11 @@
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <libgen.h>
#include <sys/poll.h>
#include <sys/wait.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/un.h>
@ -63,6 +65,8 @@ static void ctl_start(void)
exit(0);
}
printf("New process %d created\n", pid);
daemon_pid = pid;
}
@ -88,15 +92,49 @@ static void system_socket_callback(int fd, uint32_t events, void *user_data)
ctl_start();
}
static void signal_callback(int signum, void *user_data)
{
switch (signum) {
case SIGINT:
case SIGTERM:
mainloop_quit();
break;
case SIGCHLD:
while (1) {
pid_t pid;
int status;
pid = waitpid(WAIT_ANY, &status, WNOHANG);
if (pid < 0 || pid == 0)
break;
printf("Process %d terminated with status=%d\n",
pid, status);
if (pid == daemon_pid)
daemon_pid = -1;
}
break;
}
}
int main(int argc, char *argv[])
{
static const char SYSTEM_SOCKET_PATH[] = "\0android_system";
sigset_t mask;
struct sockaddr_un addr;
int fd;
mainloop_init();
sigemptyset(&mask);
sigaddset(&mask, SIGINT);
sigaddset(&mask, SIGTERM);
sigaddset(&mask, SIGCHLD);
mainloop_set_signal(&mask, signal_callback, NULL, NULL);
printf("Android system emulator ver %s\n", VERSION);
snprintf(exec_dir, sizeof(exec_dir), "%s", dirname(argv[0]));