118 lines
4.6 KiB
C
118 lines
4.6 KiB
C
// Copyright (c) 2017 Marshall A. Greenblatt. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the name Chromium Embedded
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// Framework nor the names of its contributors may be used to endorse
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// or promote products derived from this software without specific prior
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// written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// ---------------------------------------------------------------------------
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//
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// This file was generated by the CEF translator tool and should not edited
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// by hand. See the translator.README.txt file in the tools directory for
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// more information.
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//
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#ifndef CEF_INCLUDE_CAPI_CEF_WAITABLE_EVENT_CAPI_H_
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#define CEF_INCLUDE_CAPI_CEF_WAITABLE_EVENT_CAPI_H_
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#pragma once
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#include "include/capi/cef_base_capi.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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///
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// WaitableEvent is a thread synchronization tool that allows one thread to wait
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// for another thread to finish some work. This is equivalent to using a
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// Lock+ConditionVariable to protect a simple boolean value. However, using
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// WaitableEvent in conjunction with a Lock to wait for a more complex state
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// change (e.g., for an item to be added to a queue) is not recommended. In that
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// case consider using a ConditionVariable instead of a WaitableEvent. It is
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// safe to create and/or signal a WaitableEvent from any thread. Blocking on a
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// WaitableEvent by calling the *wait() functions is not allowed on the browser
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// process UI or IO threads.
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///
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typedef struct _cef_waitable_event_t {
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///
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// Base structure.
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///
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cef_base_t base;
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///
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// Put the event in the un-signaled state.
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///
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void (CEF_CALLBACK *reset)(struct _cef_waitable_event_t* self);
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///
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// Put the event in the signaled state. This causes any thread blocked on Wait
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// to be woken up.
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///
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void (CEF_CALLBACK *signal)(struct _cef_waitable_event_t* self);
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///
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// Returns true (1) if the event is in the signaled state, else false (0). If
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// the event was created with |automatic_reset| set to true (1) then calling
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// this function will also cause a reset.
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///
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int (CEF_CALLBACK *is_signaled)(struct _cef_waitable_event_t* self);
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///
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// Wait indefinitely for the event to be signaled. This function will not
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// return until after the call to signal() has completed. This function cannot
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// be called on the browser process UI or IO threads.
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///
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void (CEF_CALLBACK *wait)(struct _cef_waitable_event_t* self);
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///
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// Wait up to |max_ms| milliseconds for the event to be signaled. Returns true
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// (1) if the event was signaled. A return value of false (0) does not
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// necessarily mean that |max_ms| was exceeded. This function will not return
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// until after the call to signal() has completed. This function cannot be
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// called on the browser process UI or IO threads.
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///
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int (CEF_CALLBACK *timed_wait)(struct _cef_waitable_event_t* self,
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int64 max_ms);
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} cef_waitable_event_t;
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///
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// Create a new waitable event. If |automatic_reset| is true (1) then the event
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// state is automatically reset to un-signaled after a single waiting thread has
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// been released; otherwise, the state remains signaled until reset() is called
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// manually. If |initially_signaled| is true (1) then the event will start in
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// the signaled state.
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///
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CEF_EXPORT cef_waitable_event_t* cef_waitable_event_create(int automatic_reset,
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int initially_signaled);
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#ifdef __cplusplus
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}
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#endif
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#endif // CEF_INCLUDE_CAPI_CEF_WAITABLE_EVENT_CAPI_H_
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