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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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/http/http_cache_transaction.h" | 5 #include "net/http/http_cache_transaction.h" |
6 | 6 |
7 #include "build/build_config.h" | 7 #include "build/build_config.h" |
8 | 8 |
9 #if defined(OS_POSIX) | 9 #if defined(OS_POSIX) |
10 #include <unistd.h> | 10 #include <unistd.h> |
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2400 request_ = custom_request_.get(); | 2400 request_ = custom_request_.get(); |
2401 } | 2401 } |
2402 DCHECK(custom_request_.get()); | 2402 DCHECK(custom_request_.get()); |
2403 | 2403 |
2404 bool use_if_range = partial_.get() && !partial_->IsCurrentRangeCached() && | 2404 bool use_if_range = partial_.get() && !partial_->IsCurrentRangeCached() && |
2405 !invalid_range_; | 2405 !invalid_range_; |
2406 | 2406 |
2407 if (!use_if_range) { | 2407 if (!use_if_range) { |
2408 // stale-while-revalidate is not useful when we only have a partial response | 2408 // stale-while-revalidate is not useful when we only have a partial response |
2409 // cached, so don't set the header in that case. | 2409 // cached, so don't set the header in that case. |
2410 HttpResponseHeaders::FreshnessLifetimes lifetime = | 2410 HttpResponseHeaders::FreshnessLifetimes lifetimes = |
2411 response_.headers->GetFreshnessLifetimes(response_.response_time); | 2411 response_.headers->GetFreshnessLifetimes(response_.response_time); |
2412 if (lifetime.stale > TimeDelta()) { | 2412 if (lifetimes.staleness > TimeDelta()) { |
2413 TimeDelta current_age = response_.headers->GetCurrentAge( | 2413 TimeDelta current_age = response_.headers->GetCurrentAge( |
2414 response_.request_time, response_.response_time, Time::Now()); | 2414 response_.request_time, response_.response_time, Time::Now()); |
2415 | 2415 |
2416 custom_request_->extra_headers.SetHeader( | 2416 custom_request_->extra_headers.SetHeader( |
2417 kFreshnessHeader, | 2417 kFreshnessHeader, |
2418 base::StringPrintf("max-age=%" PRId64 | 2418 base::StringPrintf("max-age=%" PRId64 |
2419 ",stale-while-revalidate=%" PRId64 ",age=%" PRId64, | 2419 ",stale-while-revalidate=%" PRId64 ",age=%" PRId64, |
2420 lifetime.fresh.InSeconds(), | 2420 lifetimes.freshness.InSeconds(), |
2421 lifetime.stale.InSeconds(), | 2421 lifetimes.staleness.InSeconds(), |
2422 current_age.InSeconds())); | 2422 current_age.InSeconds())); |
2423 } | 2423 } |
2424 } | 2424 } |
2425 | 2425 |
2426 if (!etag_value.empty()) { | 2426 if (!etag_value.empty()) { |
2427 if (use_if_range) { | 2427 if (use_if_range) { |
2428 // We don't want to switch to WRITE mode if we don't have this block of a | 2428 // We don't want to switch to WRITE mode if we don't have this block of a |
2429 // byte-range request because we may have other parts cached. | 2429 // byte-range request because we may have other parts cached. |
2430 custom_request_->extra_headers.SetHeader( | 2430 custom_request_->extra_headers.SetHeader( |
2431 HttpRequestHeaders::kIfRange, etag_value); | 2431 HttpRequestHeaders::kIfRange, etag_value); |
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2949 | 2949 |
2950 void HttpCache::Transaction::OnIOComplete(int result) { | 2950 void HttpCache::Transaction::OnIOComplete(int result) { |
2951 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. | 2951 // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed. |
2952 tracked_objects::ScopedTracker tracking_profile( | 2952 tracked_objects::ScopedTracker tracking_profile( |
2953 FROM_HERE_WITH_EXPLICIT_FUNCTION("422516 Transaction::OnIOComplete")); | 2953 FROM_HERE_WITH_EXPLICIT_FUNCTION("422516 Transaction::OnIOComplete")); |
2954 | 2954 |
2955 DoLoop(result); | 2955 DoLoop(result); |
2956 } | 2956 } |
2957 | 2957 |
2958 } // namespace net | 2958 } // namespace net |
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