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doric-iOS/Pod/Classes/Util/DoricAsyncResult.m

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+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * 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.
+ */
+//
+//  DoricAsyncResult.m
+//  Doric
+//
+//  Created by pengfei.zhou on 2019/7/26.
+//
+
+#import "DoricAsyncResult.h"
+
+@interface DoricAsyncResult ()
+@property(nonatomic, strong) id result;
+@end
+
+@implementation DoricAsyncResult
+
+- (void)setupResult:(id)result {
+    self.result = result;
+    if (self.resultCallback) {
+        self.resultCallback(result);
+    }
+    if (self.finishCallback) {
+        self.finishCallback();
+    }
+}
+
+- (void)setupError:(NSException *)exception {
+    self.result = exception;
+    if (self.exceptionCallback) {
+        self.exceptionCallback(exception);
+    }
+    if (self.finishCallback) {
+        self.finishCallback();
+    }
+}
+
+- (BOOL)hasResult {
+    return self.result != nil;
+}
+
+- (id)getResult {
+    return self.result;
+}
+
+- (void)setResultCallback:(void (^)(id))callback {
+    _resultCallback = callback;
+    if (self.result && ![self.result isKindOfClass:[NSException class]]) {
+        callback(self.result);
+    }
+}
+
+- (void)setExceptionCallback:(void (^)(NSException *))exceptionCallback {
+    _exceptionCallback = exceptionCallback;
+    if ([self.result isKindOfClass:[NSException class]]) {
+        exceptionCallback(self.result);
+    }
+}
+
+- (void)setFinishCallback:(void (^)(void))finishCallback {
+    _finishCallback = finishCallback;
+    if (self.result) {
+        finishCallback();
+    }
+}
+
+- (id)waitUntilResult {
+    if (self.result) {
+        return self.result;
+    }
+
+    dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);
+    self.resultCallback = ^(id r) {
+        dispatch_semaphore_signal(semaphore);
+    };
+    dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
+    return self.result;
+}
+@end