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Initial implementation of ConditionVariable and Mutex

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PiperOrigin-RevId: 394293910
This commit is contained in:
jfcarroll
2021-09-01 12:56:04 -07:00
committed by Copybara-Service
parent 2a629b2c1b
commit e895f3c100
11 changed files with 554 additions and 40 deletions
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cpp/platform/impl/windows/condition_variable.h
+21 -7
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@@ -15,7 +15,14 @@
#ifndef PLATFORM_IMPL_WINDOWS_CONDITION_VARIABLE_H_
#define PLATFORM_IMPL_WINDOWS_CONDITION_VARIABLE_H_
#include <windows.h>
#include <stdio.h>
#include <synchapi.h>
#include <mutex> // NOLINT
#include "platform/api/condition_variable.h"
#include "platform/impl/windows/mutex.h"
namespace location {
namespace nearby {
@@ -27,24 +34,31 @@ namespace windows {
// ConditionVariable.
class ConditionVariable : public api::ConditionVariable {
public:
// TODO(b/184975123): replace with real implementation.
ConditionVariable(api::Mutex* mutex);
~ConditionVariable() override = default;
// Notifies all the waiters that condition state has changed.
// TODO(b/184975123): replace with real implementation.
void Notify() override {}
void Notify() override;
// Waits indefinitely for Notify to be called.
// May return prematurely in case of interrupt, if supported by platform.
// Returns kSuccess, or kInterrupted on interrupt.
// TODO(b/184975123): replace with real implementation.
Exception Wait() override { return Exception{}; }
Exception Wait() override;
// Waits while timeout has not expired for Notify to be called.
// May return prematurely in case of interrupt, if supported by platform.
// Returns kSuccess, or kInterrupted on interrupt.
// TODO(b/184975123): replace with real implementation.
Exception Wait(absl::Duration timeout) override { return Exception{}; }
Exception Wait(absl::Duration timeout) override;
private:
location::nearby::windows::Mutex& mutex_;
std::condition_variable condition_variable_actual_;
std::condition_variable& condition_variable_ = condition_variable_actual_;
std::unique_lock<std::mutex> lock;
CRITICAL_SECTION critical_section_;
};
} // namespace windows