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Side by Side Diff: net/ssl/ssl_client_session_cache.cc

Issue 2131883002: Clear SSLClientSessionCache on low memory notifications. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: rebased + removed not used method Created 4 years, 5 months ago
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1 // Copyright 2015 The Chromium Authors. All rights reserved. 1 // Copyright 2015 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "net/ssl/ssl_client_session_cache.h" 5 #include "net/ssl/ssl_client_session_cache.h"
6 6
7 #include <utility> 7 #include <utility>
8 8
9 #include "base/time/clock.h" 9 #include "base/time/clock.h"
10 #include "base/time/default_clock.h" 10 #include "base/time/default_clock.h"
11 11
12 namespace net { 12 namespace net {
13 13
14 SSLClientSessionCache::SSLClientSessionCache(const Config& config) 14 SSLClientSessionCache::SSLClientSessionCache(const Config& config)
15 : clock_(new base::DefaultClock), 15 : clock_(new base::DefaultClock),
16 config_(config), 16 config_(config),
17 cache_(config.max_entries), 17 cache_(config.max_entries),
18 lookups_since_flush_(0) {} 18 lookups_since_flush_(0) {
19 memory_pressure_listener_.reset(new base::MemoryPressureListener(base::Bind(
20 &SSLClientSessionCache::OnMemoryPressure, base::Unretained(this))));
21 }
19 22
20 SSLClientSessionCache::~SSLClientSessionCache() { 23 SSLClientSessionCache::~SSLClientSessionCache() {
21 Flush(); 24 Flush();
22 } 25 }
23 26
24 size_t SSLClientSessionCache::size() const { 27 size_t SSLClientSessionCache::size() const {
25 return cache_.size(); 28 return cache_.size();
26 } 29 }
27 30
28 ScopedSSL_SESSION SSLClientSessionCache::Lookup(const std::string& cache_key) { 31 ScopedSSL_SESSION SSLClientSessionCache::Lookup(const std::string& cache_key) {
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84 CacheEntryMap::iterator iter = cache_.begin(); 87 CacheEntryMap::iterator iter = cache_.begin();
85 while (iter != cache_.end()) { 88 while (iter != cache_.end()) {
86 if (IsExpired(iter->second.get(), now)) { 89 if (IsExpired(iter->second.get(), now)) {
87 iter = cache_.Erase(iter); 90 iter = cache_.Erase(iter);
88 } else { 91 } else {
89 ++iter; 92 ++iter;
90 } 93 }
91 } 94 }
92 } 95 }
93 96
97 void SSLClientSessionCache::OnMemoryPressure(
98 base::MemoryPressureListener::MemoryPressureLevel memory_pressure_level) {
99 switch (memory_pressure_level) {
100 case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_NONE:
101 break;
102 case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_MODERATE:
103 FlushExpiredSessions();
104 break;
105 case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL:
106 Flush();
107 break;
108 }
109 }
110
94 } // namespace net 111 } // namespace net
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