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// 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.
#ifndef MOJO_PUBLIC_C_ENVIRONMENT_ASYNC_WAITER_H_
#define MOJO_PUBLIC_C_ENVIRONMENT_ASYNC_WAITER_H_
#include "mojo/public/c/system/core.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef uintptr_t MojoAsyncWaitID;
typedef void (*MojoAsyncWaitCallback)(void* closure, MojoResult result);
struct MojoAsyncWaiter {
// Asynchronously call MojoWait on a background thread, and pass the result
// of MojoWait to the given MojoAsyncWaitCallback on the current thread.
// Returns a non-zero MojoAsyncWaitID that can be used with CancelWait to
// stop waiting. This identifier becomes invalid once the callback runs.
MojoAsyncWaitID (*AsyncWait)(struct MojoAsyncWaiter* waiter,
MojoHandle handle,
MojoWaitFlags flags,
MojoDeadline deadline,
MojoAsyncWaitCallback callback,
void* closure);
// Cancel an existing call to AsyncWait with the given MojoAsyncWaitID. The
// corresponding MojoAsyncWaitCallback will not be called in this case.
void (*CancelWait)(struct MojoAsyncWaiter* waiter,
MojoAsyncWaitID wait_id);
};
#ifdef __cplusplus
} // extern "C"
#endif
#endif // MOJO_PUBLIC_C_ENVIRONMENT_ASYNC_WAITER_H_
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