1 files changed, 82 insertions, 0 deletions
diff --git a/native/android/looper.cpp b/native/android/looper.cpp
new file mode 100644
index 000000000000..0aeed7776efe
--- /dev/null
+++ b/native/android/looper.cpp
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "ALooper"
+#include <utils/Log.h>
+
+#include <android/looper.h>
+#include <utils/PollLoop.h>
+
+using android::PollLoop;
+using android::sp;
+
+ALooper* ALooper_forThread() {
+    return PollLoop::getForThread().get();
+}
+
+ALooper* ALooper_prepare(int32_t opts) {
+    bool allowFds = (opts&ALOOPER_PREPARE_ALLOW_NON_CALLBACKS) != 0;
+    sp<PollLoop> loop = PollLoop::getForThread();
+    if (loop == NULL) {
+        loop = new PollLoop(allowFds);
+        PollLoop::setForThread(loop);
+    }
+    if (loop->getAllowNonCallbacks() != allowFds) {
+        LOGW("ALooper_prepare again with different ALOOPER_PREPARE_ALLOW_NON_CALLBACKS");
+    }
+    return loop.get();
+}
+
+int32_t ALooper_pollOnce(int timeoutMillis, int* outEvents, void** outData) {
+    sp<PollLoop> loop = PollLoop::getForThread();
+    if (loop == NULL) {
+        LOGW("ALooper_pollOnce: No looper for this thread!");
+        return -1;
+    }
+    return loop->pollOnce(timeoutMillis, outEvents, outData);
+}
+
+int32_t ALooper_pollAll(int timeoutMillis, int* outEvents, void** outData) {
+    sp<PollLoop> loop = PollLoop::getForThread();
+    if (loop == NULL) {
+        LOGW("ALooper_pollOnce: No looper for this thread!");
+        return -1;
+    }
+    
+    int32_t result;
+    while ((result = loop->pollOnce(timeoutMillis, outEvents, outData)) == ALOOPER_POLL_CALLBACK) {
+        ;
+    }
+    
+    return result;
+}
+
+void ALooper_acquire(ALooper* looper) {
+    static_cast<PollLoop*>(looper)->incStrong((void*)ALooper_acquire);
+}
+
+void ALooper_release(ALooper* looper) {
+    static_cast<PollLoop*>(looper)->decStrong((void*)ALooper_acquire);
+}
+
+void ALooper_addFd(ALooper* looper, int fd, int ident, int events,
+        ALooper_callbackFunc* callback, void* data) {
+    static_cast<PollLoop*>(looper)->setLooperCallback(fd, ident, events, callback, data);
+}
+
+int32_t ALooper_removeFd(ALooper* looper, int fd) {
+    return static_cast<PollLoop*>(looper)->removeCallback(fd) ? 1 : 0;
+}