解决了语音上传到问题，接下来要解决下载播放问题

Pods/Qiniu/QiniuSDK/Http/ConnectCheck/QNConnectChecker.m

@@ -0,0 +1,152 @@
+//
+//  QNConnectChecker.m
+//  QiniuSDK_Mac
+//
+//  Created by yangsen on 2021/1/8.
+//  Copyright © 2021 Qiniu. All rights reserved.
+//
+
+#import "QNDefine.h"
+#import "QNLogUtil.h"
+#import "QNConfiguration.h"
+#import "QNSingleFlight.h"
+#import "QNConnectChecker.h"
+#import "QNUploadSystemClient.h"
+
+@interface QNConnectChecker()
+
+@end
+@implementation QNConnectChecker
+
++ (QNSingleFlight *)singleFlight {
+    static QNSingleFlight *singleFlight = nil;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        singleFlight = [[QNSingleFlight alloc] init];
+    });
+    return singleFlight;
+}
+
++ (dispatch_queue_t)checkQueue {
+    static dispatch_queue_t queue;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        queue = dispatch_queue_create("com.qiniu.NetworkCheckQueue", DISPATCH_QUEUE_CONCURRENT);
+    });
+    return queue;
+}
+
++ (BOOL)isConnected:(QNUploadSingleRequestMetrics *)metrics {
+    return metrics && ((NSHTTPURLResponse *)metrics.response).statusCode > 99;
+}
+
++ (QNUploadSingleRequestMetrics *)check {
+    __block QNUploadSingleRequestMetrics *metrics = nil;
+    dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);
+    [self check:^(QNUploadSingleRequestMetrics *metricsP) {
+        metrics = metricsP;
+        dispatch_semaphore_signal(semaphore);
+    }];
+    dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER);
+    return metrics;
+}
+
++ (void)check:(void (^)(QNUploadSingleRequestMetrics *))complete {
+    QNSingleFlight *singleFlight = [self singleFlight];
+    
+    kQNWeakSelf;
+    [singleFlight perform:@"connect_check" action:^(QNSingleFlightComplete  _Nonnull singleFlightComplete) {
+        kQNStrongSelf;
+        
+        [self checkAllHosts:^(QNUploadSingleRequestMetrics *metrics) {
+            singleFlightComplete(metrics, nil);
+        }];
+        
+    } complete:^(id  _Nullable value, NSError * _Nullable error) {
+        if (complete) {
+            complete(value);
+        }
+    }];
+}
+
+
++ (void)checkAllHosts:(void (^)(QNUploadSingleRequestMetrics *metrics))complete {
+    
+    __block int completeCount = 0;
+    __block BOOL isCompleted = false;
+    kQNWeakSelf;
+    NSArray *allHosts = [kQNGlobalConfiguration.connectCheckURLStrings copy];
+    if (allHosts.count == 0) {
+        QNUploadSingleRequestMetrics *metrics = [QNUploadSingleRequestMetrics emptyMetrics];
+        [metrics start];
+        [metrics end];
+        metrics.error = [NSError errorWithDomain:@"com.qiniu.NetworkCheck" code:NSURLErrorUnsupportedURL userInfo:@{@"user_info":@"check host is empty"}];
+        complete(metrics);
+        return;
+    }
+    
+    for (NSString *host in allHosts) {
+        [self checkHost:host complete:^(QNUploadSingleRequestMetrics *metrics) {
+            kQNStrongSelf;
+            
+            BOOL isHostConnected = [self isConnected:metrics];
+            @synchronized (self) {
+                completeCount += 1;
+            }
+            if (isHostConnected || completeCount == allHosts.count) {
+                @synchronized (self) {
+                    if (isCompleted) {
+                        QNLogInfo(@"== check all hosts has completed totalCount:%d completeCount:%d", allHosts.count, completeCount);
+                        return;
+                    } else {
+                        QNLogInfo(@"== check all hosts completed totalCount:%d completeCount:%d", allHosts.count, completeCount);
+                        isCompleted = true;
+                    }
+                }
+                complete(metrics);
+            } else {
+                QNLogInfo(@"== check all hosts not completed totalCount:%d completeCount:%d", allHosts.count, completeCount);
+            }
+        }];
+    }
+}
+
++ (void)checkHost:(NSString *)host complete:(void (^)(QNUploadSingleRequestMetrics *metrics))complete {
+    
+    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
+    request.URL = [NSURL URLWithString:host];
+    request.HTTPMethod = @"HEAD";
+    request.timeoutInterval = kQNGlobalConfiguration.connectCheckTimeout;
+    
+    __block BOOL hasCallback = false;
+    
+    QNUploadSingleRequestMetrics *timeoutMetric = [QNUploadSingleRequestMetrics emptyMetrics];
+    [timeoutMetric start];
+    
+    QNUploadSystemClient *client = [[QNUploadSystemClient alloc] init];
+    [client request:request server:nil connectionProxy:nil progress:nil complete:^(NSURLResponse *response, QNUploadSingleRequestMetrics * metrics, NSData * _Nullable data, NSError * error) {
+        @synchronized (self) {
+            if (hasCallback) {
+                return;
+            }
+            hasCallback = true;
+        }
+        QNLogInfo(@"== checkHost:%@ responseInfo:%@", host, response);
+        complete(metrics);
+    }];
+    
+    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC * kQNGlobalConfiguration.connectCheckTimeout), [self checkQueue], ^{
+        @synchronized (self) {
+            if (hasCallback) {
+                return;
+            }
+            hasCallback = true;
+        }
+        [client cancel];
+        [timeoutMetric end];
+        timeoutMetric.error = [NSError errorWithDomain:@"com.qiniu.NetworkCheck" code:NSURLErrorTimedOut userInfo:nil];
+        complete(timeoutMetric);
+    });
+}
+
+@end