1 files changed, 135 insertions, 0 deletions
diff --git a/Source/WebKit/android/plugins/PluginTimer.cpp b/Source/WebKit/android/plugins/PluginTimer.cpp
new file mode 100644
index 0000000..dfa7272
--- /dev/null
+++ b/Source/WebKit/android/plugins/PluginTimer.cpp
@@ -0,0 +1,135 @@
+/*
+ * Copyright 2009, The Android Open Source Project
+ * Copyright (C) 2008 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "PluginTimer.h"
+#include "RefPtr.h"
+
+namespace WebCore {
+
+    static uint32_t gTimerID;
+
+    PluginTimer::PluginTimer(PluginTimer** list, NPP instance, bool repeat,
+                             void (*timerFunc)(NPP npp, uint32_t timerID))
+                : m_list(list),
+                  m_instance(instance),
+                  m_timerFunc(timerFunc),
+                  m_repeat(repeat),
+                  m_unscheduled(false)
+    {
+        m_timerID = ++gTimerID;
+
+        m_next = *list;
+        if (m_next) {
+            m_next->m_prev = this;
+        }
+        m_prev = 0;
+        *list = this;
+        relaxAdoptionRequirement();
+    }
+    
+    PluginTimer::~PluginTimer()
+    {
+        if (m_next) {
+            m_next->m_prev = m_prev;
+        }
+        if (m_prev) {
+            m_prev->m_next = m_next;
+        } else {
+            *m_list = m_next;
+        }
+    }
+        
+    void PluginTimer::fired()
+    {
+        // ensure the timer cannot be deleted until this method completes
+        RefPtr<PluginTimer> protector(this);
+
+        if (!m_unscheduled)
+            m_timerFunc(m_instance, m_timerID);
+
+        // remove the timer if it is a one-shot timer (!m_repeat) or if is a
+        // repeating timer that has been unscheduled. In either case we must
+        // ensure that the refcount is 2 or greater since the PluginTimerList
+        // could have been deleted by the timerFunc and we must ensure that we
+        // do not double delete.
+        if ((!m_repeat || m_unscheduled) && refCount() > 1)
+            deref(); // mark the timer for deletion as it is no longer needed
+    }
+    
+    // may return null if timerID is not found
+    PluginTimer* PluginTimer::Find(PluginTimer* list, uint32_t timerID)
+    {
+        PluginTimer* curr = list;
+        while (curr) {
+            if (curr->m_timerID == timerID) {
+                break;
+            }
+            curr = curr->m_next;
+        }
+        return curr;
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+
+    PluginTimerList::~PluginTimerList()
+    {
+        PluginTimer* curr = m_list;
+        PluginTimer* next;
+        while (curr) {
+            next = curr->next();
+            curr->deref();
+            curr = next;
+        }
+    }
+
+    uint32_t PluginTimerList::schedule(NPP instance, uint32_t interval, bool repeat,
+                                     void (*proc)(NPP npp, uint32_t timerID))
+    {        
+        PluginTimer* timer = new PluginTimer(&m_list, instance, repeat, proc);
+        
+        double dinterval = interval * 0.001;    // milliseconds to seconds
+        if (repeat) {
+            timer->startRepeating(dinterval);
+        } else {
+            timer->startOneShot(dinterval);
+        }
+        return timer->timerID();
+    }
+    
+    void PluginTimerList::unschedule(NPP instance, uint32_t timerID)
+    {
+        // Although it looks like simply deleting the timer would work here
+        // (stop() will be executed by the dtor), we cannot do this, as
+        // the plugin can call us while we are in the fired() method,
+        // (when we execute the timerFunc callback). Deleting the object
+        // we are in would then be a rather bad move...
+        PluginTimer* timer = PluginTimer::Find(m_list, timerID);
+        if (timer)
+            timer->unschedule();
+    }
+    
+} // namespace WebCore