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Short-circuit Process._fork

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This commit is contained in:
Nobuyoshi Nakada 2022-07-14 17:39:03 +09:00
parent 844a0edbae
commit b2205cd45c
Notes: git 2022-08-12 16:58:29 +09:00 
Merged: https://github.com/ruby/ruby/pull/6139
1 changed files with 22 additions and 9 deletions
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31
process.c
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@ -4328,12 +4328,30 @@ rb_fork_ruby(int *status)
return pid; return pid;
} }
static rb_pid_t
proc_fork_pid(void)
{
rb_pid_t pid = rb_fork_ruby(NULL);
if (pid == -1) {
rb_sys_fail("fork(2)");
}
return pid;
}
rb_pid_t rb_pid_t
rb_call_proc__fork(void) rb_call_proc__fork(void)
{ {
VALUE pid = rb_funcall(rb_mProcess, rb_intern("_fork"), 0); ID id__fork;
CONST_ID(id__fork, "_fork");
return NUM2PIDT(pid); if (rb_method_basic_definition_p(CLASS_OF(rb_mProcess), id__fork)) {
return proc_fork_pid();
}
else {
VALUE pid = rb_funcall(rb_mProcess, id__fork, 0);
return NUM2PIDT(pid);
}
} }
#endif #endif
@ -4360,12 +4378,7 @@ rb_call_proc__fork(void)
VALUE VALUE
rb_proc__fork(VALUE _obj) rb_proc__fork(VALUE _obj)
{ {
rb_pid_t pid = rb_fork_ruby(NULL); rb_pid_t pid = proc_fork_pid();
if (pid == -1) {
rb_sys_fail("fork(2)");
}
return PIDT2NUM(pid); return PIDT2NUM(pid);
} }