Close idle sockets next time we are about to send data.

net/http/http_cache.h

 // Copyright (c) 2011 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.
 
 // This file declares a HttpTransactionFactory implementation that can be
 // layered on top of another HttpTransactionFactory to add HTTP caching.  The
 // caching logic follows RFC 2616 (any exceptions are called out in the code).
 //
 // The HttpCache takes a disk_cache::Backend as a parameter, and uses that for
 // the cache storage.
@@ skipping 59 matching lines @@
     // Record mode caches everything for purposes of offline playback.
     RECORD,
     // Playback mode replays from a cache without considering any
     // standard invalidations.
     PLAYBACK,
     // Disables reads and writes from the cache.
     // Equivalent to setting LOAD_DISABLE_CACHE on every request.
     DISABLE
   };
 
+  // The idle socket cleanup mode of operation.
+  enum IdleSocketCleanupMode {
+    // Cleanup idle sockets using a timer.
+    USE_CLEANUP_TIMER = 0,
+    // Defer cleaning up idle sockets until next request.
+    DEFER_IDLE_CLEANUP
+  };
+
   // A BackendFactory creates a backend object to be used by the HttpCache.
   class NET_EXPORT BackendFactory {
    public:
     virtual ~BackendFactory() {}
 
     // The actual method to build the backend. Returns a net error code. If
     // ERR_IO_PENDING is returned, the |callback| will be notified when the
     // operation completes, and |backend| must remain valid until the
     // notification arrives.
     // The implementation must not access the factory object after invoking the
@@ skipping 34 matching lines @@
             CertVerifier* cert_verifier,
             OriginBoundCertService* origin_bound_cert_service,
             DnsRRResolver* dnsrr_resolver,
             DnsCertProvenanceChecker* dns_cert_checker,
             ProxyService* proxy_service,
             SSLConfigService* ssl_config_service,
             HttpAuthHandlerFactory* http_auth_handler_factory,
             NetworkDelegate* network_delegate,
             HttpServerProperties* http_server_properties,
             NetLog* net_log,
-            BackendFactory* backend_factory);
+            BackendFactory* backend_factory,
+            IdleSocketCleanupMode cleanup_mode = USE_CLEANUP_TIMER);

[willchan no longer on Chromium, 2011/11/15 20:35:29]

default args are not allowed by the style guide

 
   // The disk cache is initialized lazily (by CreateTransaction) in  this case.
   // Provide an existing HttpNetworkSession, the cache can construct a
   // network layer with a shared HttpNetworkSession in order for multiple
   // network layers to share information (e.g. authentication data). The
   // HttpCache takes ownership of the |backend_factory|.
   HttpCache(HttpNetworkSession* session, BackendFactory* backend_factory);
 
   // Initialize the cache from its component parts, which is useful for
   // testing.  The lifetime of the network_layer and backend_factory are managed
@@ skipping 236 matching lines @@
   PendingOpsMap pending_ops_;
 
   scoped_ptr<PlaybackCacheMap> playback_cache_map_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpCache);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_CACHE_H_