blob: cd153980bc4f61f0e5381e194ef02a32c9e33d06 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef IOS_CHROME_BROWSER_NET_RETRYABLE_URL_FETCHER_H_
#define IOS_CHROME_BROWSER_NET_RETRYABLE_URL_FETCHER_H_
#import <Foundation/Foundation.h>
#include "net/base/backoff_entry.h"
namespace net {
class URLRequestContextGetter;
} // namespace net
// Delegate protocol for RetryableURLFetcher object.
@protocol RetryableURLFetcherDelegate<NSObject>
// Returns the HTTP URL for RetryableURLFetcher to fetch.
- (NSString*)urlToFetch;
// Callback function after URL has been fetched. |response| is the content of
// the HTTP response. |response| may be nil if the HTTP request failed.
- (void)processSuccessResponse:(NSString*)response;
@end
@interface RetryableURLFetcher : NSObject
// Designated initializer. |context| and |delegate| must not be nil. If |policy|
// is not null, it specifies how often to retry the URL fetch on a call to
// -startFetch. If |policy| is null, there is no retry.
- (instancetype)
initWithRequestContextGetter:(net::URLRequestContextGetter*)context
delegate:(id<RetryableURLFetcherDelegate>)delegate
backoffPolicy:(const net::BackoffEntry::Policy*)policy;
// Starts fetching URL. Uses the backoff policy specified when the object was
// initialized.
- (void)startFetch;
// Returns the number of times that this URL Fetcher failed to receive a
// success response. Returns 0 if this URL Fetcher was not set up to do retries.
- (int)failureCount;
@end
#endif // IOS_CHROME_BROWSER_NET_RETRYABLE_URL_FETCHER_H_
|
