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// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "platform/globals.h"
#if defined(DART_HOST_OS_WINDOWS) && !defined(DART_USE_ABSL)
#include "bin/thread.h"
#include <process.h> // NOLINT
#include "platform/assert.h"
namespace dart {
namespace bin {
class ThreadStartData {
public:
ThreadStartData(const char* name,
Thread::ThreadStartFunction function,
uword parameter)
: name_(name), function_(function), parameter_(parameter) {}
const char* name() const { return name_; }
Thread::ThreadStartFunction function() const { return function_; }
uword parameter() const { return parameter_; }
private:
const char* name_;
Thread::ThreadStartFunction function_;
uword parameter_;
DISALLOW_COPY_AND_ASSIGN(ThreadStartData);
};
// Dispatch to the thread start function provided by the caller. This trampoline
// is used to ensure that the thread is properly destroyed if the thread just
// exits.
static unsigned int __stdcall ThreadEntry(void* data_ptr) {
ThreadStartData* data = reinterpret_cast<ThreadStartData*>(data_ptr);
Thread::ThreadStartFunction function = data->function();
uword parameter = data->parameter();
delete data;
// Call the supplied thread start function handing it its parameters.
function(parameter);
return 0;
}
int Thread::TryStart(const char* name,
ThreadStartFunction function,
uword parameter) {
ThreadStartData* start_data = new ThreadStartData(name, function, parameter);
uint32_t tid;
uintptr_t thread = _beginthreadex(nullptr, Thread::GetMaxStackSize(),
ThreadEntry, start_data, 0, &tid);
if ((thread == -1L) || (thread == 0)) {
return errno;
}
// Close the handle, so we don't leak the thread object.
CloseHandle(reinterpret_cast<HANDLE>(thread));
return 0;
}
intptr_t Thread::GetMaxStackSize() {
const int kStackSize = (128 * kWordSize * KB);
return kStackSize;
}
} // namespace bin
} // namespace dart
#endif // defined(DART_HOST_OS_WINDOWS) && !defined(DART_USE_ABSL)