125 lines
4.6 KiB
C++
125 lines
4.6 KiB
C++
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _LIBS_UTILS_ANDROID_THREADS_H
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#define _LIBS_UTILS_ANDROID_THREADS_H
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#include <stdint.h>
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#include <sys/types.h>
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#if !defined(_WIN32)
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# include <pthread.h>
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#endif
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#include <utils/ThreadDefs.h>
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// ---------------------------------------------------------------------------
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// C API
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Create and run a new thread.
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extern int androidCreateThread(android_thread_func_t, void *);
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// Create thread with lots of parameters
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extern int androidCreateThreadEtc(android_thread_func_t entryFunction,
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void *userData,
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const char* threadName,
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int32_t threadPriority,
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size_t threadStackSize,
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android_thread_id_t *threadId);
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// Get some sort of unique identifier for the current thread.
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extern android_thread_id_t androidGetThreadId();
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// Low-level thread creation -- never creates threads that can
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// interact with the Java VM.
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extern int androidCreateRawThreadEtc(android_thread_func_t entryFunction,
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void *userData,
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const char* threadName,
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int32_t threadPriority,
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size_t threadStackSize,
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android_thread_id_t *threadId);
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// set the same of the running thread
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extern void androidSetThreadName(const char* name);
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// Used by the Java Runtime to control how threads are created, so that
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// they can be proper and lovely Java threads.
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typedef int (*android_create_thread_fn)(android_thread_func_t entryFunction,
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void *userData,
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const char* threadName,
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int32_t threadPriority,
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size_t threadStackSize,
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android_thread_id_t *threadId);
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extern void androidSetCreateThreadFunc(android_create_thread_fn func);
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// ------------------------------------------------------------------
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// Extra functions working with raw pids.
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#if defined(__ANDROID__)
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// Change the priority AND scheduling group of a particular thread. The priority
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// should be one of the ANDROID_PRIORITY constants. Returns INVALID_OPERATION
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// if the priority set failed, else another value if just the group set failed;
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// in either case errno is set. Thread ID zero means current thread.
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extern int androidSetThreadPriority(pid_t tid, int prio);
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// Get the current priority of a particular thread. Returns one of the
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// ANDROID_PRIORITY constants or a negative result in case of error.
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extern int androidGetThreadPriority(pid_t tid);
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#endif
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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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// C++ API
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#ifdef __cplusplus
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namespace android {
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// ----------------------------------------------------------------------------
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// Create and run a new thread.
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inline bool createThread(thread_func_t f, void *a) {
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return androidCreateThread(f, a) ? true : false;
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}
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// Create thread with lots of parameters
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inline bool createThreadEtc(thread_func_t entryFunction,
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void *userData,
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const char* threadName = "android:unnamed_thread",
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int32_t threadPriority = PRIORITY_DEFAULT,
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size_t threadStackSize = 0,
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thread_id_t *threadId = 0)
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{
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return androidCreateThreadEtc(entryFunction, userData, threadName,
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threadPriority, threadStackSize, threadId) ? true : false;
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}
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// Get some sort of unique identifier for the current thread.
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inline thread_id_t getThreadId() {
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return androidGetThreadId();
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}
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// ----------------------------------------------------------------------------
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}; // namespace android
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#endif // __cplusplus
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// ----------------------------------------------------------------------------
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#endif // _LIBS_UTILS_ANDROID_THREADS_H
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