feat: sync httpdns sdk/platform updates without large binaries

HttpDNSSDK/sdk/ios/NewHttpDNS/Network/HttpdnsNWHTTPClient.h

@@ -0,0 +1,42 @@
+#import <Foundation/Foundation.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class HttpdnsNWReusableConnection;
+
+@interface HttpdnsNWHTTPClientResponse : NSObject
+
+@property (nonatomic, assign) NSInteger statusCode;
+@property (nonatomic, copy) NSDictionary<NSString *, NSString *> *headers;
+@property (nonatomic, strong) NSData *body;
+
+@end
+
+@interface HttpdnsNWHTTPClient : NSObject
+
+/// 全局共享实例，复用底层连接池；线程安<E7A88B><E5AE89>?
++ (instancetype)sharedInstance;
+
+- (nullable HttpdnsNWHTTPClientResponse *)performRequestWithURLString:(NSString *)urlString
+                                                            userAgent:(NSString *)userAgent
+                                                              timeout:(NSTimeInterval)timeout
+                                                                error:(NSError **)error;
+
+@end
+
+#if DEBUG
+@interface HttpdnsNWHTTPClient (TestInspection)
+
+@property (nonatomic, assign, readonly) NSUInteger connectionCreationCount;
+@property (nonatomic, assign, readonly) NSUInteger connectionReuseCount;
+
+- (NSUInteger)connectionPoolCountForKey:(NSString *)key;
+- (NSArray<NSString *> *)allConnectionPoolKeys;
+- (NSUInteger)totalConnectionCount;
+- (void)resetPoolStatistics;
+- (NSArray<HttpdnsNWReusableConnection *> *)connectionsInPoolForKey:(NSString *)key;
+
+@end
+#endif
+
+NS_ASSUME_NONNULL_END