gfx/skia/trunk/src/utils/SkThreadUtils_pthread_linux.cpp@129ffea94266
gfx/skia/trunk/src/utils/SkThreadUtils_pthread_linux.cpp
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
1 /*
2 * Copyright 2012 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
8 #ifndef _GNU_SOURCE
9 #define _GNU_SOURCE //for pthread_setaffinity_np
10 #endif
12 #include "SkThreadUtils.h"
13 #include "SkThreadUtils_pthread.h"
15 #include <pthread.h>
17 static int nth_set_cpu(unsigned int n, cpu_set_t* cpuSet) {
18 n %= CPU_COUNT(cpuSet);
19 for (unsigned int setCpusSeen = 0, currentCpu = 0; true; ++currentCpu) {
20 if (CPU_ISSET(currentCpu, cpuSet)) {
21 ++setCpusSeen;
22 if (setCpusSeen > n) {
23 return currentCpu;
24 }
25 }
26 }
27 }
29 bool SkThread::setProcessorAffinity(unsigned int processor) {
30 SkThread_PThreadData* pthreadData = static_cast<SkThread_PThreadData*>(fData);
31 if (!pthreadData->fValidPThread) {
32 return false;
33 }
35 cpu_set_t parentCpuset;
36 if (0 != pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), &parentCpuset)) {
37 return false;
38 }
40 cpu_set_t cpuset;
41 CPU_ZERO(&cpuset);
42 CPU_SET(nth_set_cpu(processor, &parentCpuset), &cpuset);
43 return 0 == pthread_setaffinity_np(pthreadData->fPThread,
44 sizeof(cpu_set_t),
45 &cpuset);
46 }
