add a service to reap zombies, use it in SLIRP
SLIRP -smb support wants to fork a process and forget about reaping it.
To please it, add a generic service to register a process id and let
QEMU reap it. In the future it could be enhanced to pass a status,
but this would be unused.
With this in place, the SIGCHLD signal handler would not stomp on pclose
anymore.
Signed-off-by: Paolo Bonzini <[email protected]>
Signed-off-by: Anthony Liguori <[email protected]>
diff --git a/slirp/misc.c b/slirp/misc.c
index 19dbec4..08eba6a 100644
--- a/slirp/misc.c
+++ b/slirp/misc.c
@@ -119,6 +119,7 @@
char *bptr;
const char *curarg;
int c, i, ret;
+ pid_t pid;
DEBUG_CALL("fork_exec");
DEBUG_ARG("so = %lx", (long)so);
@@ -142,7 +143,8 @@
}
}
- switch(fork()) {
+ pid = fork();
+ switch(pid) {
case -1:
lprint("Error: fork failed: %s\n", strerror(errno));
close(s);
@@ -206,6 +208,7 @@
exit(1);
default:
+ qemu_add_child_watch(pid);
if (do_pty == 2) {
close(s);
so->s = master;
