Set static IDs to same name variables

process.c

@@ -9123,45 +9123,46 @@ InitVM_process(void)
 void
 Init_process(void)
 {
-    id_in = rb_intern_const("in");
-    id_out = rb_intern_const("out");
-    id_err = rb_intern_const("err");
-    id_pid = rb_intern_const("pid");
-    id_uid = rb_intern_const("uid");
-    id_gid = rb_intern_const("gid");
-    id_close = rb_intern_const("close");
-    id_child = rb_intern_const("child");
+#define define_id(name) id_##name = rb_intern_const(#name)
+    define_id(in);
+    define_id(out);
+    define_id(err);
+    define_id(pid);
+    define_id(uid);
+    define_id(gid);
+    define_id(close);
+    define_id(child);
 #ifdef HAVE_SETPGID
-    id_pgroup = rb_intern_const("pgroup");
+    define_id(pgroup);
 #endif
 #ifdef _WIN32
-    id_new_pgroup = rb_intern_const("new_pgroup");
+    define_id(new_pgroup);
 #endif
-    id_unsetenv_others = rb_intern_const("unsetenv_others");
-    id_chdir = rb_intern_const("chdir");
-    id_umask = rb_intern_const("umask");
-    id_close_others = rb_intern_const("close_others");
-    id_nanosecond = rb_intern_const("nanosecond");
-    id_microsecond = rb_intern_const("microsecond");
-    id_millisecond = rb_intern_const("millisecond");
-    id_second = rb_intern_const("second");
-    id_float_microsecond = rb_intern_const("float_microsecond");
-    id_float_millisecond = rb_intern_const("float_millisecond");
-    id_float_second = rb_intern_const("float_second");
-    id_GETTIMEOFDAY_BASED_CLOCK_REALTIME = rb_intern_const("GETTIMEOFDAY_BASED_CLOCK_REALTIME");
-    id_TIME_BASED_CLOCK_REALTIME = rb_intern_const("TIME_BASED_CLOCK_REALTIME");
+    define_id(unsetenv_others);
+    define_id(chdir);
+    define_id(umask);
+    define_id(close_others);
+    define_id(nanosecond);
+    define_id(microsecond);
+    define_id(millisecond);
+    define_id(second);
+    define_id(float_microsecond);
+    define_id(float_millisecond);
+    define_id(float_second);
+    define_id(GETTIMEOFDAY_BASED_CLOCK_REALTIME);
+    define_id(TIME_BASED_CLOCK_REALTIME);
 #ifdef HAVE_TIMES
-    id_TIMES_BASED_CLOCK_MONOTONIC = rb_intern_const("TIMES_BASED_CLOCK_MONOTONIC");
-    id_TIMES_BASED_CLOCK_PROCESS_CPUTIME_ID = rb_intern_const("TIMES_BASED_CLOCK_PROCESS_CPUTIME_ID");
+    define_id(TIMES_BASED_CLOCK_MONOTONIC);
+    define_id(TIMES_BASED_CLOCK_PROCESS_CPUTIME_ID);
 #endif
 #ifdef RUSAGE_SELF
-    id_GETRUSAGE_BASED_CLOCK_PROCESS_CPUTIME_ID = rb_intern_const("GETRUSAGE_BASED_CLOCK_PROCESS_CPUTIME_ID");
+    define_id(GETRUSAGE_BASED_CLOCK_PROCESS_CPUTIME_ID);
 #endif
-    id_CLOCK_BASED_CLOCK_PROCESS_CPUTIME_ID = rb_intern_const("CLOCK_BASED_CLOCK_PROCESS_CPUTIME_ID");
+    define_id(CLOCK_BASED_CLOCK_PROCESS_CPUTIME_ID);
 #ifdef __APPLE__
-    id_MACH_ABSOLUTE_TIME_BASED_CLOCK_MONOTONIC = rb_intern_const("MACH_ABSOLUTE_TIME_BASED_CLOCK_MONOTONIC");
+    define_id(MACH_ABSOLUTE_TIME_BASED_CLOCK_MONOTONIC);
 #endif
-    id_hertz = rb_intern_const("hertz");
+    define_id(hertz);
 
     InitVM(process);
 }