Changeset 3102 for branches

Timestamp:

Apr 15, 2007, 5:27:12 AM (19 years ago)

Author:

bird

Message:

workaround for lost signals / thread pokes. Fixes #152.

Location:

branches/libc-0.6/src/emx

Files:

• include/InnoTekLIBC/backend.h (modified) (1 diff)
• src/lib/libc.def (modified) (1 diff)
• src/lib/process/fmutex.c (modified) (4 diffs)
• src/lib/sys/signals.c (modified) (2 diffs)

branches/libc-0.6/src/emx/include/InnoTekLIBC/backend.h

@@ -816 +816 @@
 int __libc_Back_signalTimer(int iWhich, const struct itimerval *pValue, struct itimerval *pOldValue);
 
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branches/libc-0.6/src/emx/src/lib/libc.def

@@ -1958 +1958 @@
     "__std_nanf" @1956
     "__std_nanl" @1957
+
 
+

branches/libc-0.6/src/emx/src/lib/process/fmutex.c

@@ -17 +17 @@
 #define __LIBC_LOG_GROUP __LIBC_LOG_GRP_MUTEX
 #include <InnoTekLIBC/logstrict.h>
+
 #include <InnoTekLIBC/backend.h>
 
@@ -200 +201 @@
     FS_SAVE_LOAD();
     DosEnterMustComplete(&ulNesting);
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     fs = __cxchg(&sem->fs, _FMS_OWNED_SIMPLE);
     if (fs == _FMS_AVAILABLE)
@@ -214 +225 @@
         if (rc)
         {
+
             LIBC_ASSERTM_FAILED("Failed to create event semaphore for fmutex '%s', rc=%d. flags=%#x\n", sem->pszDesc, rc, sem->flags);
             FS_RESTORE();
@@ -332 +344 @@
     LIBCLOG_ENTER("sem=%p{.pszDesc=%s}\n", (void *)sem, sem->pszDesc);
     ULONG ulNesting;
+
+
     __atomic_xchg(&sem->Owner, 0);
     signed char fs = __cxchg(&sem->fs, _FMS_AVAILABLE);
-    if (fs != _FMS_OWNED_HARD)
-    {
-        FS_VAR_SAVE_LOAD();
-        DosExitMustComplete(&ulNesting);
-        FS_RESTORE();
-        LIBCLOG_RETURN_UINT(0);
-    }
-    else
-    {
-        int rc = __fmutex_release_internal (sem);
-        FS_VAR_SAVE_LOAD();
-        DosExitMustComplete(&ulNesting);
-        FS_RESTORE();
-        LIBCLOG_RETURN_UINT(rc);
-    }
+    if (fs == _FMS_OWNED_HARD)
+        rc = __fmutex_release_internal (sem);
+
+    FS_VAR_SAVE_LOAD();
+    DosExitMustComplete(&ulNesting);
+    FS_RESTORE();
+
+    /* This is a hack to catch lost poke signals. */
+    if (!ulNesting)
+    {
+        __LIBC_PTHREAD pThrd = __libc_threadCurrentNoAuto();
+        if (pThrd && pThrd->fSigBeingPoked)
+            __libc_Back_signalLostPoke();
+    }
+
+    LIBCLOG_RETURN_UINT(rc);
 }
 

branches/libc-0.6/src/emx/src/lib/sys/signals.c

@@ -2478 +2478 @@
     if (!pThrdPoke->fSigBeingPoked)
     {
+
         __atomic_xchg(&pThrdPoke->fSigBeingPoked, 1);
         int rc = DosKillThread(pThrdPoke->tid);
+
         if (rc)
+
+
             LIBC_ASSERTM_FAILED("DosKillThread(%d) -> rc=%d\n", pThrdPoke->tid, rc);
+
     }
 
@@ -2532 +2537 @@
 
     return -EINVAL;
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 }