diff options
Diffstat (limited to 'base/threading/platform_thread_freebsd.cc')
-rw-r--r-- | base/threading/platform_thread_freebsd.cc | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/base/threading/platform_thread_freebsd.cc b/base/threading/platform_thread_freebsd.cc new file mode 100644 index 0000000..7a24f4e --- /dev/null +++ b/base/threading/platform_thread_freebsd.cc @@ -0,0 +1,103 @@ +// Copyright 2014 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. + +#include "base/threading/platform_thread.h" + +#include <errno.h> +#include <sched.h> + +#include "base/lazy_instance.h" +#include "base/logging.h" +#include "base/memory/scoped_ptr.h" +#include "base/safe_strerror_posix.h" +#include "base/threading/thread_id_name_manager.h" +#include "base/threading/thread_restrictions.h" +#include "base/tracked_objects.h" + +#if !defined(OS_NACL) +#include <sys/resource.h> +#include <sys/syscall.h> +#include <sys/time.h> +#include <sys/types.h> +#include <unistd.h> +#endif + +namespace base { + +namespace { +int ThreadNiceValue(ThreadPriority priority) { + switch (priority) { + case kThreadPriority_RealtimeAudio: + return -10; + case kThreadPriority_Background: + return 10; + case kThreadPriority_Normal: + return 0; + case kThreadPriority_Display: + return -6; + default: + NOTREACHED() << "Unknown priority."; + return 0; + } +} +} // namespace + +// static +void PlatformThread::SetName(const char* name) { + ThreadIdNameManager::GetInstance()->SetName(CurrentId(), name); + tracked_objects::ThreadData::InitializeThreadContext(name); + +#if !defined(OS_NACL) + // On FreeBSD we can get the thread names to show up in the debugger by + // setting the process name for the LWP. We don't want to do this for the + // main thread because that would rename the process, causing tools like + // killall to stop working. + if (PlatformThread::CurrentId() == getpid()) + return; + setproctitle("%s", name); +#endif // !defined(OS_NACL) +} + +// static +void PlatformThread::SetThreadPriority(PlatformThreadHandle handle, + ThreadPriority priority) { +#if !defined(OS_NACL) + if (priority == kThreadPriority_RealtimeAudio) { + const struct sched_param kRealTimePrio = { 8 }; + if (pthread_setschedparam(pthread_self(), SCHED_RR, &kRealTimePrio) == 0) { + // Got real time priority, no need to set nice level. + return; + } + } + + // setpriority(2) will set a thread's priority if it is passed a tid as + // the 'process identifier', not affecting the rest of the threads in the + // process. Setting this priority will only succeed if the user has been + // granted permission to adjust nice values on the system. + DCHECK_NE(handle.id_, kInvalidThreadId); + const int kNiceSetting = ThreadNiceValue(priority); + if (setpriority(PRIO_PROCESS, handle.id_, kNiceSetting)) { + DVPLOG(1) << "Failed to set nice value of thread (" + << handle.id_ << ") to " << kNiceSetting; + } +#endif // !defined(OS_NACL) +} + +void InitThreading() {} + +void InitOnThread() {} + +void TerminateOnThread() {} + +size_t GetDefaultThreadStackSize(const pthread_attr_t& attributes) { +#if !defined(THREAD_SANITIZER) + return 0; +#else + // ThreadSanitizer bloats the stack heavily. Evidence has been that the + // default stack size isn't enough for some browser tests. + return 2 * (1 << 23); // 2 times 8192K (the default stack size on Linux). +#endif +} + +} // namespace base |