20368d96e0
This is just a set of OS dependant functionality needed by the emulator OpenGL host renderer. It currently has implementation for Linux and Windows only. osDynLibrary - dlopen/dlsym abstraction osProcess - interface to launch a new process, wait and kill it. osThread - abstraction interface for creating a thread. Change-Id: Ib0264592d8c87e865da87acf5c94e2b331801ca4
172 lines
3.6 KiB
C++
172 lines
3.6 KiB
C++
/*
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* Copyright (C) 2011 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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#include "osProcess.h"
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#include <windows.h>
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#include <string>
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#include <stdlib.h>
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#include <psapi.h>
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namespace osUtils {
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childProcess *
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childProcess::create(const char *p_cmdLine, const char *p_startdir)
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{
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childProcess *child = new childProcess();
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if (!child) {
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return NULL;
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}
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STARTUPINFOA si;
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ZeroMemory(&si, sizeof(si));
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ZeroMemory(&child->m_proc, sizeof(child->m_proc));
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BOOL ret = CreateProcessA(
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NULL ,
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(LPSTR)p_cmdLine,
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NULL,
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NULL,
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FALSE,
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CREATE_DEFAULT_ERROR_MODE,
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NULL,
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(p_startdir != NULL ? p_startdir : ".\\"),
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&si,
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&child->m_proc);
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if (ret == 0) {
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delete child;
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return NULL;
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}
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// close the thread handle we do not need it,
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// keep the process handle for wait/trywait operations, will
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// be closed on destruction
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CloseHandle(m_proc.hThread);
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return child;
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}
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childProcess::~childProcess()
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{
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if (m_proc.hProcess) {
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CloseHandle(child->m_proc.hProcess);
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}
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}
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bool
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childProcess::wait(int *exitStatus)
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{
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DWORD _exitStatus;
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if (WaitForSingleObject(m_proc.hProcess, INFINITE) == WAIT_FAILED) {
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return false;
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}
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if (!GetExitCodeProcess(m_proc.hProcess, &_exitStatus))
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{
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return false;
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}
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if (exitStatus) {
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*exitStatus = _exitStatus;
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}
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return true;
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}
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int
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childProcess::tryWait(bool& isAlive)
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{
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DWORD status = WaitForSingleObject(m_proc.hProcess, 0);
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if(status == WAIT_OBJECT_0)
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{
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// process has exited
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isAlive = false;
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GetExitCodeProcess(m_proc.hProcess, &status);
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}
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else if (status == WAIT_TIMEOUT)
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{
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isAlive = true;
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status = 0;
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}
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return status;
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}
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int ProcessGetPID()
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{
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return GetCurrentProcessId();
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}
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int ProcessGetTID()
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{
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return GetCurrentThreadId();
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}
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bool ProcessGetName(char *p_outName, int p_outNameLen)
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{
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return 0 != GetModuleFileNameEx( GetCurrentProcess(), NULL, p_outName, p_outNameLen);
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}
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int KillProcess(int pid, bool wait)
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{
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DWORD exitStatus = 1;
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HANDLE hProc = OpenProcess(PROCESS_ALL_ACCESS, FALSE, pid);
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if (NULL == hProc) {
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return 0;
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}
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//
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// Terminate the process
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//
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TerminateProcess(hProc, 0x55);
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if (wait) {
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//
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// Wait for it to be terminated
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//
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if(WaitForSingleObject(hProc, INFINITE) == WAIT_FAILED) {
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CloseHandle(hProc);
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return 0;
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}
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if (!GetExitCodeProcess(hProc, &exitStatus)) {
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CloseHandle(hProc);
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return 0;
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}
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}
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CloseHandle(hProc);
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return exitStatus;
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}
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bool isProcessRunning(int pid)
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{
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bool isRunning = false;
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HANDLE process = OpenProcess(SYNCHRONIZE, FALSE, pid);
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if (NULL != process) {
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DWORD ret = WaitForSingleObject(process, 0);
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CloseHandle(process);
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isRunning = (ret == WAIT_TIMEOUT);
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}
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return isRunning;
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}
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} // of namespace osUtils
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