Mark cached pid if necessary

2023-03-20 18:08:05 +09:00 · 2023-03-20 18:08:05 +09:00 · 758e4db551
commit 758e4db551
parent 1aa2555044
1 changed files with 7 additions and 2 deletions
--- a/process.c
+++ b/process.c
@ -9055,5 +9055,10 @@ Init_process(void)
 #endif
    define_id(hertz);

+    /* pid_t must be signed, since fork() can return -1 */
+    const rb_pid_t half_max_pidt = (rb_pid_t)1 << (sizeof(rb_pid_t) * CHAR_BIT - 2);
+    const rb_pid_t max_pidt = 2 * (half_max_pidt - 1) + 1;
+    if (!POSFIXABLE(max_pidt)) rb_gc_register_address(&cached_pid);
+
    InitVM(process);
 }