Main changes (see ChangeLog diff for details and attributions):-

	- asynchronous cancellation added
	- attempt to hide internal exceptions from applications
	- kernel32 load/free problem fixed
	- new tests
	- changes only to comments in some tests

1 files changed, 180 insertions, 0 deletions

diff --git a/tests/cancel3.c b/tests/cancel3.c
new file mode 100644
index 0000000..ff1d286
--- /dev/null
+++ b/tests/cancel3.c
@@ -0,0 +1,180 @@
+/*
+ * File: cancel3.c
+ *
+ * Test Synopsis: Test asynchronous cancelation.
+ *
+ * Test Method (Validation or Falsification):
+ * - 
+ *
+ * Requirements Tested:
+ * -
+ *
+ * Features Tested:
+ * - 
+ *
+ * Cases Tested:
+ * - 
+ *
+ * Description:
+ * - 
+ *
+ * Environment:
+ * - 
+ *
+ * Input:
+ * - None.
+ *
+ * Output:
+ * - File name, Line number, and failed expression on failure.
+ * - No output on success.
+ *
+ * Assumptions:
+ * - have working pthread_create, pthread_self, pthread_mutex_lock/unlock
+ *   pthread_testcancel, pthread_cancel, pthread_join
+ *
+ * Pass Criteria:
+ * - Process returns zero exit status.
+ *
+ * Fail Criteria:
+ * - Process returns non-zero exit status.
+ */
+
+#if defined(_MSC_VER) || defined(__cplusplus)
+
+#include "test.h"
+
+/*
+ * Create NUMTHREADS threads in addition to the Main thread.
+ */
+enum {
+  NUMTHREADS = 4
+};
+
+typedef struct bag_t_ bag_t;
+struct bag_t_ {
+  int threadnum;
+  int started;
+  /* Add more per-thread state variables here */
+  int count;
+};
+
+static bag_t threadbag[NUMTHREADS + 1];
+
+static pthread_mutex_t waitLock = PTHREAD_MUTEX_INITIALIZER;
+
+void *
+mythread(void * arg)
+{
+  int result = 0;
+  bag_t * bag = (bag_t *) arg;
+
+  assert(bag == &threadbag[bag->threadnum]);
+  assert(bag->started == 0);
+  bag->started = 1;
+
+  /* Set to known state and type */
+
+  assert(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) == 0);
+
+  assert(pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL) == 0);
+
+  /*
+   * We wait up to 10 seconds, waking every 0.1 seconds,
+   * for a cancelation to be applied to us.
+   */
+  for (bag->count = 0; bag->count < 100; bag->count++)
+    Sleep(100);
+
+  return result;
+}
+
+int
+main()
+{
+  int failed = 0;
+  int i;
+  pthread_t t[NUMTHREADS + 1];
+
+  assert((t[0] = pthread_self()) != NULL);
+
+  for (i = 1; i <= NUMTHREADS; i++)
+    {
+      threadbag[i].started = 0;
+      threadbag[i].threadnum = i;
+      assert(pthread_create(&t[i], NULL, mythread, (void *) &threadbag[i]) == 0);
+    }
+
+  /*
+   * Code to control or munipulate child threads should probably go here.
+   */
+  Sleep(500);
+
+  for (i = 1; i <= NUMTHREADS; i++)
+    {
+      assert(pthread_cancel(t[i]) == 0);
+    }
+
+  /*
+   * Give threads time to run.
+   */
+  Sleep(NUMTHREADS * 100);
+
+  /*
+   * Standard check that all threads started.
+   */
+  for (i = 1; i <= NUMTHREADS; i++)
+    { 
+      if (!threadbag[i].started)
+	{
+	  failed |= !threadbag[i].started;
+	  fprintf(stderr, "Thread %d: started %d\n", i, threadbag[i].started);
+	}
+    }
+
+  assert(!failed);
+
+  /*
+   * Check any results here. Set "failed" and only print output on failure.
+   */
+  failed = 0;
+  for (i = 1; i <= NUMTHREADS; i++)
+    {
+      int fail = 0;
+      int result = 0;
+
+      /*
+       * The thread does not contain any cancelation points, so
+       * a return value of PTHREAD_CANCELED confirms that async
+       * cancelation succeeded.
+       */
+      assert(pthread_join(t[i], (void *) &result) == 0);
+
+      fail = (result != (int) PTHREAD_CANCELED);
+
+      if (fail)
+	{
+	  fprintf(stderr, "Thread %d: started %d: count %d\n",
+		  i,
+		  threadbag[i].started,
+		  threadbag[i].count);
+	}
+      failed = (failed || fail);
+    }
+
+  assert(!failed);
+
+  /*
+   * Success.
+   */
+  return 0;
+}
+
+#else /* defined(_MSC_VER) || defined(__cplusplus) */
+
+int
+main()
+{
+  return 0;
+}
+
+#endif /* defined(_MSC_VER) || defined(__cplusplus) */