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SystemServer: Reap dead processes. (#706)

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SystemServer didn't reap its child processes. This commit adds
sigchld_handler, which reaps children when appropriate.
This commit is contained in:
DrewStratford 2019-10-31 21:49:53 +13:00 • committed by Andreas Kling
parent b583f21e27
commit 6bd1879189
1 changed files with 13 additions and 1 deletions
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12
Servers/SystemServer/main.cpp
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@ -3,13 +3,23 @@
#include <errno.h>
#include <fcntl.h>
#include <sched.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
//#define SPAWN_MULTIPLE_VIRTUAL_CONSOLES
void sigchld_handler(int)
{
int status = 0;
pid_t pid = waitpid(-1, &status, WNOHANG);
if (pid)
dbg() << "reaped pid " << pid;
}
void start_process(const String& program, const Vector<String>& arguments, int prio, const char* tty = nullptr)
{
pid_t pid = 0;
@ -100,6 +110,8 @@ int main(int, char**)
setgid(100);
setuid(100);
signal(SIGCHLD, sigchld_handler);
start_process("/bin/LookupServer", {}, lowest_prio);
start_process("/bin/WindowServer", {}, highest_prio);
start_process("/bin/AudioServer", {}, highest_prio);