53257: use monotonic clock where appropriate

update the following features to use the monotonic clock for calculating time
deltas and intervals:

* MAILCHECK parameter
* PERIOD parameter
* SECONDS parameter
* %(nS.t.f) prompt-expansion sequence
* time built-in's elapsed time and cpu % values
* zsh/zftp ZFTP_TMOUT parameter
* zsh/zprof timings

also use CLOCK_MONOTONIC_RAW instead of CLOCK_MONOTONIC on macOS

2 files changed, 11 insertions, 12 deletions

diff --git a/Src/Modules/zftp.c b/Src/Modules/zftp.c
index b60e5bf31..230ad86f6 100644
--- a/Src/Modules/zftp.c
+++ b/Src/Modules/zftp.c
@@ -397,7 +397,7 @@ zfalarm(int tmout)
     signal(SIGALRM, zfhandler);
     oalremain = alarm(tmout);
     if (oalremain)
-	oaltime = time(NULL);
+	oaltime = zmonotime(NULL);
     /*
      * We'll leave sigtrapped, sigfuncs and TRAPXXX as they are; since the
      * shell's handler doesn't get the signal, they don't matter.
@@ -431,7 +431,7 @@ zfunalarm(void)
 	 * I love the way alarm() uses unsigned int while time_t
 	 * is probably something completely different.
 	 */
-	unsigned int tdiff = time(NULL) - oaltime;
+	time_t tdiff = zmonotime(NULL) - oaltime;
 	alarm(oalremain < tdiff ? 1 : oalremain - tdiff);
     } else
 	alarm(0);
diff --git a/Src/Modules/zprof.c b/Src/Modules/zprof.c
index 171a15b90..f5a50effc 100644
--- a/Src/Modules/zprof.c
+++ b/Src/Modules/zprof.c
@@ -239,8 +239,7 @@ zprof_wrapper(Eprog prog, FuncWrap w, char *name)
     struct sfunc sf, *sp;
     Pfunc f = NULL;
     Parc a = NULL;
-    struct timeval tv;
-    struct timezone dummy;
+    struct timespec ts;
     double prev = 0, now;
     char *name_for_lookups;
 
@@ -278,19 +277,19 @@ zprof_wrapper(Eprog prog, FuncWrap w, char *name)
         stack = &sf;
 
         f->calls++;
-        tv.tv_sec = tv.tv_usec = 0;
-        gettimeofday(&tv, &dummy);
-        sf.beg = prev = ((((double) tv.tv_sec) * 1000.0) +
-                         (((double) tv.tv_usec) / 1000.0));
+        ts.tv_sec = ts.tv_nsec = 0;
+        zgettime_monotonic_if_available(&ts);
+        sf.beg = prev = ((((double) ts.tv_sec) * 1000.0) +
+                         (((double) ts.tv_nsec) / 1000000.0));
     }
     runshfunc(prog, w, name);
     if (active) {
         if (zprof_module && !(zprof_module->node.flags & MOD_UNLOAD)) {
-            tv.tv_sec = tv.tv_usec = 0;
-            gettimeofday(&tv, &dummy);
+            ts.tv_sec = ts.tv_nsec = 0;
+            zgettime_monotonic_if_available(&ts);
 
-            now = ((((double) tv.tv_sec) * 1000.0) +
-                   (((double) tv.tv_usec) / 1000.0));
+            now = ((((double) ts.tv_sec) * 1000.0) +
+                   (((double) ts.tv_nsec) / 1000000.0));
             f->self += now - sf.beg;
             for (sp = sf.prev; sp && sp->p != f; sp = sp->prev);
             if (!sp)