1 // Copyright (c) 2015 Marshall A. Greenblatt. All rights reserved.
3 // Redistribution and use in source and binary forms, with or without
4 // modification, are permitted provided that the following conditions are
7 // * Redistributions of source code must retain the above copyright
8 // notice, this list of conditions and the following disclaimer.
9 // * Redistributions in binary form must reproduce the above
10 // copyright notice, this list of conditions and the following disclaimer
11 // in the documentation and/or other materials provided with the
13 // * Neither the name of Google Inc. nor the name Chromium Embedded
14 // Framework nor the names of its contributors may be used to endorse
15 // or promote products derived from this software without specific prior
16 // written permission.
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 // ---------------------------------------------------------------------------
32 // This file was generated by the CEF translator tool and should not edited
33 // by hand. See the translator.README.txt file in the tools directory for
37 #ifndef CEF_INCLUDE_CAPI_CEF_TASK_CAPI_H_
38 #define CEF_INCLUDE_CAPI_CEF_TASK_CAPI_H_
41 #include "include/capi/cef_base_capi.h"
49 // Implement this structure for asynchronous task execution. If the task is
50 // posted successfully and if the associated message loop is still running then
51 // the execute() function will be called on the target thread. If the task fails
52 // to post then the task object may be destroyed on the source thread instead of
53 // the target thread. For this reason be cautious when performing work in the
54 // task object destructor.
56 typedef struct _cef_task_t {
63 // Method that will be executed on the target thread.
65 void (CEF_CALLBACK *execute)(struct _cef_task_t* self);
70 // Structure that asynchronously executes tasks on the associated thread. It is
71 // safe to call the functions of this structure on any thread.
73 // CEF maintains multiple internal threads that are used for handling different
74 // types of tasks in different processes. The cef_thread_id_t definitions in
75 // cef_types.h list the common CEF threads. Task runners are also available for
76 // other CEF threads as appropriate (for example, V8 WebWorker threads).
78 typedef struct _cef_task_runner_t {
85 // Returns true (1) if this object is pointing to the same task runner as
88 int (CEF_CALLBACK *is_same)(struct _cef_task_runner_t* self,
89 struct _cef_task_runner_t* that);
92 // Returns true (1) if this task runner belongs to the current thread.
94 int (CEF_CALLBACK *belongs_to_current_thread)(
95 struct _cef_task_runner_t* self);
98 // Returns true (1) if this task runner is for the specified CEF thread.
100 int (CEF_CALLBACK *belongs_to_thread)(struct _cef_task_runner_t* self,
101 cef_thread_id_t threadId);
104 // Post a task for execution on the thread associated with this task runner.
105 // Execution will occur asynchronously.
107 int (CEF_CALLBACK *post_task)(struct _cef_task_runner_t* self,
108 struct _cef_task_t* task);
111 // Post a task for delayed execution on the thread associated with this task
112 // runner. Execution will occur asynchronously. Delayed tasks are not
113 // supported on V8 WebWorker threads and will be executed without the
116 int (CEF_CALLBACK *post_delayed_task)(struct _cef_task_runner_t* self,
117 struct _cef_task_t* task, int64 delay_ms);
122 // Returns the task runner for the current thread. Only CEF threads will have
123 // task runners. An NULL reference will be returned if this function is called
124 // on an invalid thread.
126 CEF_EXPORT cef_task_runner_t* cef_task_runner_get_for_current_thread();
129 // Returns the task runner for the specified CEF thread.
131 CEF_EXPORT cef_task_runner_t* cef_task_runner_get_for_thread(
132 cef_thread_id_t threadId);
136 // Returns true (1) if called on the specified thread. Equivalent to using
137 // cef_task_tRunner::GetForThread(threadId)->belongs_to_current_thread().
139 CEF_EXPORT int cef_currently_on(cef_thread_id_t threadId);
142 // Post a task for execution on the specified thread. Equivalent to using
143 // cef_task_tRunner::GetForThread(threadId)->PostTask(task).
145 CEF_EXPORT int cef_post_task(cef_thread_id_t threadId, cef_task_t* task);
148 // Post a task for delayed execution on the specified thread. Equivalent to
149 // using cef_task_tRunner::GetForThread(threadId)->PostDelayedTask(task,
152 CEF_EXPORT int cef_post_delayed_task(cef_thread_id_t threadId, cef_task_t* task,
159 #endif // CEF_INCLUDE_CAPI_CEF_TASK_CAPI_H_