Changeset 754 for trunk/src/emx/src/lib/process/fmutex.c

Timestamp:

Sep 30, 2003, 12:11:05 AM (22 years ago)

Author:

bird

Message:

#679: FS preservation.

File:

• trunk/src/emx/src/lib/process/fmutex.c (modified) (8 diffs, 1 prop)

trunk/src/emx/src/lib/process/fmutex.c

@@ -5 +5 @@
 #define INCL_DOSPROCESS
 #define INCL_DOSERRORS
+
 #include <os2.h>
 #include <stdlib.h>
@@ -16 +17 @@
 unsigned _fmutex_create (_fmutex *sem, unsigned flags)
 {
+
+
   sem->fs = _FMS_AVAILABLE;
-  return DosCreateEventSem (NULL, (PHEV)&sem->hev,
-                            (flags & _FMC_SHARED) ? DC_SEM_SHARED : 0,
-                            FALSE);
+  FS_SAVE_LOAD();
+  rc = DosCreateEventSem (NULL, (PHEV)&sem->hev,
+                          (flags & _FMC_SHARED) ? DC_SEM_SHARED : 0,
+                           FALSE);
+  FS_RESTORE();
+  return rc;
 }
 
@@ -25 +31 @@
 unsigned _fmutex_open (_fmutex *sem)
 {
-  return DosOpenEventSem (NULL, (PHEV)&sem->hev);
+  unsigned rc;
+  FS_VAR();
+  FS_SAVE_LOAD();
+  rc = DosOpenEventSem (NULL, (PHEV)&sem->hev);
+  FS_RESTORE();
+  return rc;
 }
 
@@ -31 +42 @@
 unsigned _fmutex_close (_fmutex *sem)
 {
-  return DosCloseEventSem (sem->hev);
+  unsigned rc;
+  FS_VAR();
+  FS_SAVE_LOAD();
+  rc = DosCloseEventSem (sem->hev);
+  FS_RESTORE();
+  return rc;
 }
 
@@ -55 +71 @@
   for (;;)
     {
+
+
       rc = DosResetEventSem (sem->hev, &count);
+
       if (rc != 0 && rc != ERROR_ALREADY_RESET)
         return rc;
@@ -62 +81 @@
       do
         {
+
           rc = DosWaitEventSem (sem->hev, SEM_INDEFINITE_WAIT);
+
         } while (rc == ERROR_INTERRUPT && (flags & _FMR_IGNINT));
       if (rc != 0)
@@ -73 +94 @@
 {
   ULONG rc;
+
 
+
   rc = DosPostEventSem (sem->hev);
   if (rc != 0 && rc != ERROR_ALREADY_POSTED)
-    return rc;
+    {
+      FS_RESTORE();
+      return rc;
+    }
 
   /* Give up our time slice to give other threads a chance.  Without
@@ -122 +148 @@
 
   DosSleep (0);
+
   return 0;
 }