Use 'volatile' types for communications between timer thread and main thread.

2 files changed, 5 insertions, 5 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 2efebc6754d..398d19fe6f2 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -4,8 +4,8 @@
         possible, for ITIMER_PROF count only times the main thread
         actually executes.
         * w32proc.c <struct itimer_data>: 'expire' and 'reload' are now
-        ULONGLONG types.  Likewise for all the other data which was
-        previously clock_t.
+        'volatile ULONGLONG' types.  All the other data which was
+        previously clock_t is now ULONGLONG.  'terminate' is 'volatile int'.
         (GetThreadTimes_Proc): New typedef.
         (w32_get_timer_time): New function, returns a suitable time value
         for the timer.
diff --git a/src/w32proc.c b/src/w32proc.c
index 6accf2224c5..af656f915c7 100644
--- a/src/w32proc.c
+++ b/src/w32proc.c
@@ -245,9 +245,9 @@ setpgrp (int pid, int gid)
    expires, after stopping the thread which installed the timer.  */
 
 struct itimer_data {
-  ULONGLONG expire;
-  ULONGLONG reload;
-  int terminate;
+  volatile ULONGLONG expire;
+  volatile ULONGLONG reload;
+  volatile int terminate;
   int type;
   HANDLE caller_thread;
   HANDLE timer_thread;