Changeset 243 for trunk/src/helpers/sem.c

Timestamp:

Jan 29, 2003, 7:41:39 PM (23 years ago)

Author:

umoeller

Message:

New build system, multimedia, other misc fixes.

File:

• trunk/src/helpers/sem.c (modified) (7 diffs)

trunk/src/helpers/sem.c

@@ -2 +2 @@
 /*
  *@@sourcefile sem.c:
- *      implements fast mutex semaphores a la Win32
- *      critical sections.
- *
- *      This is an OS/2 implementation of what Win32 calls as
- *      "critical sections"
- *      It is an implementation that is highly optimized for
+ *      implements fast mutex semaphores.
+ *
+ *      This is an OS/2 implementation of what Win32 calls
+ *      "critical sections". This is highly optimized for
  *      the case where there is only one thread trying to
  *      access the critical section, i.e. it is available most
@@ -194 +192 @@
     // do an atomic increase of the lockcounter and see if it is > 0
     // (i.e. it is already posessed)
-    if (DosInterlockedIncrement(&pmtx->LockCount))
+    if (lockIncrement(&pmtx->LockCount))
     {
         // semaphore was already requested:
@@ -206 +204 @@
         }
 
-        // current owner is different thread thread:
+        // current owner is different thread:
 
         // do an atomic operation where we compare the owning thread id with 0
         // and if this is true, exchange it with the id of the current thread
-        if (DosInterlockedCompareExchange((PLONG)&pmtx->OwningThread, threadid, 0))
+        if (lockCompareExchange((PLONG)&pmtx->OwningThread, threadid, 0))
         {
             // the compare did not return equal, i.e. the pmtx sect is in use
@@ -257 +255 @@
 BOOL semTry(PFASTMTX pmtx)
 {
-    if (DosInterlockedIncrement(&pmtx->LockCount))
+    if (lockIncrement(&pmtx->LockCount))
     {
         if (pmtx->OwningThread == GetTID())
@@ -265 +263 @@
         }
 
-        DosInterlockedDecrement(&pmtx->LockCount);
+        lockDecrement(&pmtx->LockCount);
 
         return FALSE;
@@ -291 +289 @@
     if (--pmtx->RecursionCount)
     {
-        DosInterlockedDecrement(&pmtx->LockCount );
+        lockDecrement(&pmtx->LockCount );
         return NO_ERROR;
     }
@@ -297 +295 @@
     pmtx->OwningThread = 0;
 
-    if (DosInterlockedDecrement(&pmtx->LockCount) >= 0)
+    if (lockDecrement(&pmtx->LockCount) >= 0)
         // someone is waiting
         DosPostEventSem(pmtx->hmtxLock);