extern "C" NS_EXPORT pid_t
WRAP(fork)(void)
{
pid_t pid;
for (std::vector<AtForkFuncs>::reverse_iterator it = atfork.rbegin();
it < atfork.rend(); ++it)
if (it->prepare)
it->prepare();
switch ((pid = __fork())) {
case 0:
cpuacct_add(getuid());
for (std::vector<AtForkFuncs>::iterator it = atfork.begin();
it < atfork.end(); ++it)
if (it->child)
it->child();
break;
default:
for (std::vector<AtForkFuncs>::iterator it = atfork.begin();
it < atfork.end(); ++it)
if (it->parent)
it->parent();
}
return pid;
}
int fork(void)
{
int ret;
/* Posix mandates that the timers of a fork child process be
* disarmed, but not destroyed. To avoid a race condition, we're
* going to stop all timers now, and only re-start them in case
* of error, or in the parent process
*/
__timer_table_start_stop(1);
__bionic_atfork_run_prepare();
ret = __fork();
if (ret != 0) { /* not a child process */
__timer_table_start_stop(0);
__bionic_atfork_run_parent();
} else {
/*
* Newly created process must update cpu accounting.
* Call cpuacct_add passing in our uid, which will take
* the current task id and add it to the uid group passed
* as a parameter.
*/
cpuacct_add(getuid());
__bionic_atfork_run_child();
}
return ret;
}
int setuid(uid_t uid)
{
cpuacct_add(uid);
return __setuid(uid);
}
