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Call appropriate hooks on MJIT's fork

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This takes care of signal_self_pipe and other things.
This commit is contained in:
Takashi Kokubun 2022-09-04 18:21:56 -07:00
parent 51291ade70
commit f6d569b7c0
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GPG Key ID: 6FFC433B12EE23DD
2 changed files with 27 additions and 18 deletions
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22
mjit.c
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@ -742,23 +742,17 @@ mjit_compact_unit(struct rb_mjit_unit *unit)
return 1;
}
extern pid_t rb_mjit_fork();
static pid_t
start_mjit_compact(struct rb_mjit_unit *unit)
{
rb_vm_t *vm = GET_VM();
rb_native_mutex_lock(&vm->waitpid_lock);
pid_t pid = rb_fork();
pid_t pid = rb_mjit_fork();
if (pid == 0) {
rb_native_mutex_unlock(&vm->waitpid_lock);
int exit_code = mjit_compact_unit(unit);
exit(exit_code);
}
else {
mjit_add_waiting_pid(vm, pid);
rb_native_mutex_unlock(&vm->waitpid_lock);
return pid;
}
}
@ -908,20 +902,12 @@ mjit_compile_unit(struct rb_mjit_unit *unit)
static pid_t
start_mjit_compile(struct rb_mjit_unit *unit)
{
rb_vm_t *vm = GET_VM();
rb_native_mutex_lock(&vm->waitpid_lock);
pid_t pid = rb_fork();
pid_t pid = rb_mjit_fork();
if (pid == 0) {
rb_native_mutex_unlock(&vm->waitpid_lock);
int exit_code = mjit_compile_unit(unit);
exit(exit_code);
}
else {
mjit_add_waiting_pid(vm, pid);
rb_native_mutex_unlock(&vm->waitpid_lock);
return pid;
}
}

23
process.c
View File

@ -4204,6 +4204,29 @@ retry_fork_async_signal_safe(struct rb_process_status *status, int *ep,
}
}
#if USE_MJIT
// This is used to create MJIT's child Ruby process
pid_t
rb_mjit_fork(void)
{
struct child_handler_disabler_state old;
rb_vm_t *vm = GET_VM();
prefork();
disable_child_handler_before_fork(&old);
before_fork_ruby();
rb_native_mutex_lock(&vm->waitpid_lock);
pid_t pid = rb_fork();
if (pid > 0) mjit_add_waiting_pid(vm, pid);
rb_native_mutex_unlock(&vm->waitpid_lock);
after_fork_ruby();
disable_child_handler_fork_parent(&old);
return pid;
}
#endif
static rb_pid_t
fork_check_err(struct rb_process_status *status, int (*chfunc)(void*, char *, size_t), void *charg,
VALUE fds, char *errmsg, size_t errmsg_buflen,