Vyacheslav Egorov
e105029f62
This CL also removes ability to assign names to mutexes which was
added in c25ebfff96 but did not yield
any interesting data.
TEST=ci
CoreLibraryReviewExempt: Changes to dart:concurrent only.
Cq-Include-Trybots: luci.dart.try:vm-fuchsia-release-x64-try,vm-win-debug-x64-try,vm-win-release-x64-try,vm-aot-linux-product-x64-try
Change-Id: Id41e1d29832f6008e02f0a571ee67564e1a84224
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/375300
Reviewed-by: Martin Kustermann <kustermann@google.com>
100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
// Copyright (c) 2022, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "platform/globals.h"
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#if defined(DART_USE_ABSL)
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#include <errno.h> // NOLINT
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#include <sys/resource.h> // NOLINT
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#include <sys/time.h> // NOLINT
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#include "bin/thread.h"
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#include "platform/assert.h"
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#include "platform/utils.h"
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namespace dart {
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namespace bin {
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class ThreadStartData {
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public:
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ThreadStartData(const char* name,
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Thread::ThreadStartFunction function,
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uword parameter)
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: name_(name), function_(function), parameter_(parameter) {}
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const char* name() const { return name_; }
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Thread::ThreadStartFunction function() const { return function_; }
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uword parameter() const { return parameter_; }
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private:
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const char* name_;
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Thread::ThreadStartFunction function_;
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uword parameter_;
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DISALLOW_COPY_AND_ASSIGN(ThreadStartData);
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};
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// Dispatch to the thread start function provided by the caller. This trampoline
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// is used to ensure that the thread is properly destroyed if the thread just
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// exits.
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static void* ThreadStart(void* data_ptr) {
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ThreadStartData* data = reinterpret_cast<ThreadStartData*>(data_ptr);
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const char* name = data->name();
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Thread::ThreadStartFunction function = data->function();
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uword parameter = data->parameter();
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delete data;
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#if defined(DART_HOST_OS_ANDROID) || defined(DART_HOST_OS_LINUX)
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// Set the thread name. There is 16 bytes limit on the name (including \0).
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// pthread_setname_np ignores names that are too long rather than truncating.
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char truncated_name[16];
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snprintf(truncated_name, sizeof(truncated_name), "%s", name);
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pthread_setname_np(pthread_self(), truncated_name);
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#elif defined(DART_HOST_OS_MACOS)
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// Set the thread name.
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pthread_setname_np(name);
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#endif
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// Call the supplied thread start function handing it its parameters.
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function(parameter);
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return nullptr;
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}
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int Thread::Start(const char* name,
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ThreadStartFunction function,
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uword parameter) {
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pthread_attr_t attr;
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int result = pthread_attr_init(&attr);
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RETURN_ON_PTHREAD_FAILURE(result);
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result = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
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RETURN_ON_PTHREAD_FAILURE(result);
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result = pthread_attr_setstacksize(&attr, Thread::GetMaxStackSize());
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RETURN_ON_PTHREAD_FAILURE(result);
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ThreadStartData* data = new ThreadStartData(name, function, parameter);
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pthread_t tid;
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result = pthread_create(&tid, &attr, ThreadStart, data);
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RETURN_ON_PTHREAD_FAILURE(result);
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result = pthread_attr_destroy(&attr);
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RETURN_ON_PTHREAD_FAILURE(result);
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return 0;
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}
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intptr_t Thread::GetMaxStackSize() {
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const int kStackSize = (128 * kWordSize * KB);
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return kStackSize;
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}
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} // namespace bin
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} // namespace dart
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#endif // defined(DART_USE_ABSL)
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