1 files changed, 244 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/ipc/ipcd/extensions/lock/test/TestIPCLocks.cpp b/src/libs/xpcom18a4/ipc/ipcd/extensions/lock/test/TestIPCLocks.cpp
new file mode 100644
index 00000000..f35e8434
--- /dev/null
+++ b/src/libs/xpcom18a4/ipc/ipcd/extensions/lock/test/TestIPCLocks.cpp
@@ -0,0 +1,244 @@
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla IPC.
+ *
+ * The Initial Developer of the Original Code is IBM Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2004
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Darin Fisher <darin@meer.net>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+// This test program spawns N copies of itself, and each copy spawns M threads.
+// Each thread acquires and releases a named, interprocess lock.
+// Randomized delays are injected at various points to exercise the system, and
+// help expose any race conditions that may exist.
+//
+// Usage: TestIPCLocks [-N]
+
+#include <stdlib.h>
+#include <stdio.h>
+#include "ipcILockService.h"
+#include "ipcLockCID.h"
+#include "nsIServiceManagerUtils.h"
+#include "nsIEventQueueService.h"
+#include "nsCOMPtr.h"
+#include "nsXPCOM.h"
+#include "prproces.h"
+#include "prprf.h"
+
+#if defined(XP_UNIX) || defined(XP_OS2) || defined(XP_BEOS)
+#include <unistd.h>
+static unsigned GetPID()
+{
+  return (unsigned) getpid();
+}
+#elif defined(XP_WIN)
+#include <windows.h>
+static unsigned GetPID()
+{
+  return (unsigned) GetCurrentProcessId();  
+}
+#else
+static unsigned int GetPID()
+{
+  return 0; // implement me!
+}
+#endif
+
+static void LOG(const char *fmt, ... )
+{
+  va_list ap;
+  va_start(ap, fmt);
+  PRUint32 nb = 0;
+  char buf[512];
+
+  nb = PR_snprintf(buf, sizeof(buf), "[%u:%p] ", GetPID(), PR_GetCurrentThread());
+
+  PR_vsnprintf(buf + nb, sizeof(buf) - nb, fmt, ap);
+  buf[sizeof(buf) - 1] = '\0';
+
+  fwrite(buf, strlen(buf), 1, stdout);
+  fflush(stdout);
+
+  va_end(ap);
+}
+
+static void RandomSleep(PRUint32 fromMS, PRUint32 toMS)
+{
+  PRUint32 ms = fromMS + (PRUint32) ((toMS - fromMS) * ((double) rand() / RAND_MAX));
+  //LOG("putting thread to sleep for %u ms\n", ms);
+  PR_Sleep(PR_MillisecondsToInterval(ms));
+}
+
+static ipcILockService *gLockService;
+
+PR_STATIC_CALLBACK(void) TestThread(void *arg)
+{
+  const char *lockName = (const char *) arg;
+
+  LOG("entering TestThread [lock=%s]\n", lockName);
+
+  nsresult rv;
+
+  RandomSleep(1000, 1100);
+
+  //LOG("done sleeping\n");
+
+  rv = gLockService->AcquireLock(lockName, PR_TRUE);
+  if (NS_SUCCEEDED(rv))
+  {
+    //LOG("acquired lock \"%s\"\n", lockName);
+    RandomSleep(500, 1000);
+    //LOG("releasing lock \"%s\"\n", lockName);
+    rv = gLockService->ReleaseLock(lockName);
+    if (NS_FAILED(rv))
+    {
+      LOG("failed to release lock [rv=%x]\n", rv);
+      NS_ERROR("failed to release lock");
+    }
+  }
+  else
+  {
+    LOG("failed to acquire lock [rv=%x]\n", rv);
+    NS_NOTREACHED("failed to acquire lock");
+  }
+
+  LOG("exiting TestThread [lock=%s rv=%x]\n", lockName, rv);
+}
+
+static const char *kLockNames[] = {
+  "foopy",
+  "test",
+  "1",
+  "xyz",
+  "moz4ever",
+  nsnull
+};
+
+static nsresult DoTest()
+{
+  nsresult rv;
+
+  nsCOMPtr<nsIEventQueueService> eqs =
+      do_GetService(NS_EVENTQUEUESERVICE_CONTRACTID, &rv);
+  if (NS_FAILED(rv))
+    return rv;
+
+  rv = eqs->CreateMonitoredThreadEventQueue();
+  if (NS_FAILED(rv))
+    return rv;
+
+  nsCOMPtr<nsIEventQueue> eq;
+  rv = eqs->GetThreadEventQueue(NS_CURRENT_THREAD, getter_AddRefs(eq));
+  if (NS_FAILED(rv))
+    return rv;
+
+  nsCOMPtr<ipcILockService> lockService =
+      do_GetService(IPC_LOCKSERVICE_CONTRACTID);
+
+  gLockService = lockService;
+
+  PRThread *threads[10] = {0};
+  int i = 0;
+
+  for (const char **lockName = kLockNames; *lockName; ++lockName, ++i)
+  {
+    threads[i] = PR_CreateThread(PR_USER_THREAD,
+                                 TestThread,
+                                 (void *) *lockName,
+                                 PR_PRIORITY_NORMAL,
+                                 PR_GLOBAL_THREAD,
+                                 PR_JOINABLE_THREAD,
+                                 0);
+  }
+
+  for (i=0; threads[i]; ++i)
+  {
+    PR_JoinThread(threads[i]);
+    threads[i] = nsnull;
+  }
+
+  gLockService = nsnull;
+
+  LOG("joined with all threads; exiting DoTest\n");
+  return NS_OK;
+}
+
+int main(int argc, char **argv)
+{
+  LOG("entering main\n");
+
+  int numProcs = 10;
+
+  // if this is a child process, then just run the test
+  if (argc > 1)
+  {
+    if (strcmp(argv[1], "-child") == 0)
+    {
+      RandomSleep(1000, 1000);
+      LOG("running child test\n");
+      NS_InitXPCOM2(nsnull, nsnull, nsnull);
+      DoTest();
+      NS_ShutdownXPCOM(nsnull);
+      return 0;
+    }
+    else if (argv[1][0] == '-')
+    {
+      // argument is a number
+      numProcs = atoi(argv[1] + 1);
+      if (numProcs == 0)
+      {
+        printf("### usage: TestIPCLocks [-N]\n"
+               "where, N is the number of test processes to spawn.\n");
+        return -1;
+      }
+    }
+  }
+
+  LOG("sleeping for 1 second\n");
+  PR_Sleep(PR_SecondsToInterval(1));
+
+  PRProcess **procs = (PRProcess **) malloc(sizeof(PRProcess*) * numProcs);
+  int i;
+
+  // else, spawn the child processes
+  for (i=0; i<numProcs; ++i)
+  {
+    char *const argv[] = {"./TestIPCLocks", "-child", nsnull};
+    LOG("spawning child test\n");
+    procs[i] = PR_CreateProcess("./TestIPCLocks", argv, nsnull, nsnull);
+  }
+
+  PRInt32 exitCode;
+  for (i=0; i<numProcs; ++i)
+    PR_WaitProcess(procs[i], &exitCode);
+  
+  return 0;
+}