• file
• revisions
• annotate
• diff
• comparison
• raw

gfx/skia/trunk/src/utils/SkThreadUtils_pthread_linux.cpp@129ffea94266 (annotated)

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.

michael@0	1	/*
michael@0	2	* Copyright 2012 Google Inc.
michael@0	3	*
michael@0	4	* Use of this source code is governed by a BSD-style license that can be
michael@0	5	* found in the LICENSE file.
michael@0	6	*/
michael@0	7
michael@0	8	#ifndef _GNU_SOURCE
michael@0	9	#define _GNU_SOURCE //for pthread_setaffinity_np
michael@0	10	#endif
michael@0	11
michael@0	12	#include "SkThreadUtils.h"
michael@0	13	#include "SkThreadUtils_pthread.h"
michael@0	14
michael@0	15	#include <pthread.h>
michael@0	16
michael@0	17	static int nth_set_cpu(unsigned int n, cpu_set_t* cpuSet) {
michael@0	18	n %= CPU_COUNT(cpuSet);
michael@0	19	for (unsigned int setCpusSeen = 0, currentCpu = 0; true; ++currentCpu) {
michael@0	20	if (CPU_ISSET(currentCpu, cpuSet)) {
michael@0	21	++setCpusSeen;
michael@0	22	if (setCpusSeen > n) {
michael@0	23	return currentCpu;
michael@0	24	}
michael@0	25	}
michael@0	26	}
michael@0	27	}
michael@0	28
michael@0	29	bool SkThread::setProcessorAffinity(unsigned int processor) {
michael@0	30	SkThread_PThreadData* pthreadData = static_cast<SkThread_PThreadData*>(fData);
michael@0	31	if (!pthreadData->fValidPThread) {
michael@0	32	return false;
michael@0	33	}
michael@0	34
michael@0	35	cpu_set_t parentCpuset;
michael@0	36	if (0 != pthread_getaffinity_np(pthread_self(), sizeof(cpu_set_t), &parentCpuset)) {
michael@0	37	return false;
michael@0	38	}
michael@0	39
michael@0	40	cpu_set_t cpuset;
michael@0	41	CPU_ZERO(&cpuset);
michael@0	42	CPU_SET(nth_set_cpu(processor, &parentCpuset), &cpuset);
michael@0	43	return 0 == pthread_setaffinity_np(pthreadData->fPThread,
michael@0	44	sizeof(cpu_set_t),
michael@0	45	&cpuset);
michael@0	46	}