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Added a README file regarding WinRT support
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This commit is contained in:
David Ludwig
284
visualtest/src/windows/windows_process.c
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284
visualtest/src/windows/windows_process.c
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/* See COPYING.txt for the full license governing this code. */
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/**
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* \file windows_process.c
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*
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* Source file for the process API on windows.
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*/
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#include <SDL.h>
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#include <SDL_test.h>
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#include <string.h>
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#include <stdlib.h>
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#include "SDL_visualtest_process.h"
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#if defined(__WIN32__)
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void
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LogLastError(char* str)
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{
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LPVOID buffer;
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DWORD dw = GetLastError();
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FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM|
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FORMAT_MESSAGE_IGNORE_INSERTS, NULL, dw,
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MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&buffer,
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0, NULL);
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SDLTest_LogError("%s: %s", str, (char*)buffer);
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LocalFree(buffer);
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}
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int
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SDL_LaunchProcess(char* file, char* args, SDL_ProcessInfo* pinfo)
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{
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BOOL success;
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char* working_directory;
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char* command_line;
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int path_length, args_length;
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STARTUPINFO sui = {0};
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sui.cb = sizeof(sui);
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if(!file)
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{
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SDLTest_LogError("Path to executable to launched cannot be NULL.");
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return 0;
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}
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if(!pinfo)
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{
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SDLTest_LogError("pinfo cannot be NULL.");
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return 0;
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}
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/* get the working directory of the process being launched, so that
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the process can load any resources it has in it's working directory */
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path_length = SDL_strlen(file);
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if(path_length == 0)
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{
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SDLTest_LogError("Length of the file parameter is zero.");
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return 0;
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}
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working_directory = (char*)SDL_malloc(path_length + 1);
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if(!working_directory)
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{
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SDLTest_LogError("Could not allocate working_directory - malloc() failed.");
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return 0;
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}
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SDL_memcpy(working_directory, file, path_length + 1);
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PathRemoveFileSpec(working_directory);
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if(SDL_strlen(working_directory) == 0)
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{
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SDL_free(working_directory);
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working_directory = NULL;
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}
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/* join the file path and the args string together */
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if(!args)
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args = "";
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args_length = SDL_strlen(args);
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command_line = (char*)SDL_malloc(path_length + args_length + 2);
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if(!command_line)
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{
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SDLTest_LogError("Could not allocate command_line - malloc() failed.");
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return 0;
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}
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SDL_memcpy(command_line, file, path_length);
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command_line[path_length] = ' ';
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SDL_memcpy(command_line + path_length + 1, args, args_length + 1);
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/* create the process */
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success = CreateProcess(NULL, command_line, NULL, NULL, FALSE,
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NORMAL_PRIORITY_CLASS | CREATE_NO_WINDOW,
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NULL, working_directory, &sui, &pinfo->pi);
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if(working_directory)
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{
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SDL_free(working_directory);
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working_directory = NULL;
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}
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SDL_free(command_line);
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if(!success)
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{
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LogLastError("CreateProcess() failed");
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return 0;
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}
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return 1;
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}
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int
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SDL_GetProcessExitStatus(SDL_ProcessInfo* pinfo, SDL_ProcessExitStatus* ps)
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{
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DWORD exit_status;
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BOOL success;
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if(!pinfo)
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{
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SDLTest_LogError("pinfo cannot be NULL");
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return 0;
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}
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if(!ps)
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{
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SDLTest_LogError("ps cannot be NULL");
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return 0;
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}
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/* get the exit code */
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success = GetExitCodeProcess(pinfo->pi.hProcess, &exit_status);
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if(!success)
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{
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LogLastError("GetExitCodeProcess() failed");
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return 0;
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}
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if(exit_status == STILL_ACTIVE)
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ps->exit_status = -1;
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else
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ps->exit_status = exit_status;
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ps->exit_success = 1;
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return 1;
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}
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int
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SDL_IsProcessRunning(SDL_ProcessInfo* pinfo)
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{
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DWORD exit_status;
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BOOL success;
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if(!pinfo)
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{
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SDLTest_LogError("pinfo cannot be NULL");
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return -1;
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}
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success = GetExitCodeProcess(pinfo->pi.hProcess, &exit_status);
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if(!success)
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{
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LogLastError("GetExitCodeProcess() failed");
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return -1;
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}
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if(exit_status == STILL_ACTIVE)
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return 1;
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return 0;
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}
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static BOOL CALLBACK
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CloseWindowCallback(HWND hwnd, LPARAM lparam)
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{
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DWORD pid;
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SDL_ProcessInfo* pinfo;
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pinfo = (SDL_ProcessInfo*)lparam;
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GetWindowThreadProcessId(hwnd, &pid);
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if(pid == pinfo->pi.dwProcessId)
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{
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DWORD result;
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if(!SendMessageTimeout(hwnd, WM_CLOSE, 0, 0, SMTO_BLOCK,
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1000, &result))
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{
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if(GetLastError() != ERROR_TIMEOUT)
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{
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LogLastError("SendMessageTimeout() failed");
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return FALSE;
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}
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}
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}
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return TRUE;
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}
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int
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SDL_QuitProcess(SDL_ProcessInfo* pinfo, SDL_ProcessExitStatus* ps)
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{
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DWORD wait_result;
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if(!pinfo)
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{
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SDLTest_LogError("pinfo argument cannot be NULL");
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return 0;
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}
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if(!ps)
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{
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SDLTest_LogError("ps argument cannot be NULL");
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return 0;
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}
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/* enumerate through all the windows, trying to close each one */
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if(!EnumWindows(CloseWindowCallback, (LPARAM)pinfo))
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{
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SDLTest_LogError("EnumWindows() failed");
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return 0;
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}
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/* wait until the process terminates */
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wait_result = WaitForSingleObject(pinfo->pi.hProcess, 1000);
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if(wait_result == WAIT_FAILED)
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{
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LogLastError("WaitForSingleObject() failed");
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return 0;
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}
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if(wait_result != WAIT_OBJECT_0)
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{
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SDLTest_LogError("Process did not quit.");
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return 0;
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}
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/* get the exit code */
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if(!SDL_GetProcessExitStatus(pinfo, ps))
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{
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SDLTest_LogError("SDL_GetProcessExitStatus() failed");
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return 0;
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}
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return 1;
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}
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int
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SDL_KillProcess(SDL_ProcessInfo* pinfo, SDL_ProcessExitStatus* ps)
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{
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BOOL success;
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DWORD exit_status, wait_result;
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if(!pinfo)
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{
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SDLTest_LogError("pinfo argument cannot be NULL");
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return 0;
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}
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if(!ps)
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{
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SDLTest_LogError("ps argument cannot be NULL");
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return 0;
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}
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/* initiate termination of the process */
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success = TerminateProcess(pinfo->pi.hProcess, 0);
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if(!success)
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{
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LogLastError("TerminateProcess() failed");
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return 0;
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}
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/* wait until the process terminates */
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wait_result = WaitForSingleObject(pinfo->pi.hProcess, INFINITE);
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if(wait_result == WAIT_FAILED)
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{
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LogLastError("WaitForSingleObject() failed");
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return 0;
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}
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/* get the exit code */
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success = GetExitCodeProcess(pinfo->pi.hProcess, &exit_status);
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if(!success)
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{
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LogLastError("GetExitCodeProcess() failed");
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return 0;
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}
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ps->exit_status = exit_status;
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ps->exit_success = 1;
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return 1;
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}
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#endif
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