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| -rw-r--r-- | include/osl/process.h | 422 |
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diff --git a/include/osl/process.h b/include/osl/process.h new file mode 100644 index 000000000..120d87e64 --- /dev/null +++ b/include/osl/process.h @@ -0,0 +1,422 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + + +#ifndef INCLUDED_OSL_PROCESS_H +#define INCLUDED_OSL_PROCESS_H + +#include "sal/config.h" + +#include "osl/file.h" +#include "osl/security.h" +#include "osl/time.h" +#include "rtl/locale.h" +#include "rtl/ustring.h" +#include "sal/saldllapi.h" + +#ifdef __cplusplus +extern "C" { +#endif + + +typedef sal_Int32 oslProcessOption; +#define osl_Process_WAIT 0x0001 /* wait for completion */ +#define osl_Process_SEARCHPATH 0x0002 /* search path for executable */ +#define osl_Process_DETACHED 0x0004 /* run detached */ +#define osl_Process_NORMAL 0x0000 /* run in normal window */ +#define osl_Process_HIDDEN 0x0010 /* run hidden */ +#define osl_Process_MINIMIZED 0x0020 /* run in minimized window */ +#define osl_Process_MAXIMIZED 0x0040 /* run in maximized window */ +#define osl_Process_FULLSCREEN 0x0080 /* run in fullscreen window */ + +typedef sal_Int32 oslProcessData; + +/* defines for osl_getProcessInfo , can be OR'ed */ +#define osl_Process_IDENTIFIER 0x0001 /* retrieves the process identifier */ +#define osl_Process_EXITCODE 0x0002 /* retrieves exit code of the process */ +#define osl_Process_CPUTIMES 0x0004 /* retrieves used cpu time */ +#define osl_Process_HEAPUSAGE 0x0008 /* retrieves the used size of heap */ + +typedef sal_uInt32 oslProcessIdentifier; +typedef sal_uInt32 oslProcessExitCode; + +typedef enum { + osl_Process_E_None, /* no error */ + osl_Process_E_NotFound, /* image not found */ + osl_Process_E_TimedOut, /* timeout occurred */ + osl_Process_E_NoPermission, /* permission denied */ + osl_Process_E_Unknown, /* unknown error */ + osl_Process_E_InvalidError, /* unmapped error */ + osl_Process_E_FORCE_EQUAL_SIZE = SAL_MAX_ENUM +} oslProcessError; + +#ifdef _WIN32 +# pragma pack(push, 8) +#endif + +typedef struct { + sal_uInt32 Size; + oslProcessData Fields; + oslProcessIdentifier Ident; + oslProcessExitCode Code; + TimeValue UserTime; + TimeValue SystemTime; + sal_uInt32 HeapUsage; +} oslProcessInfo; + +#if defined( _WIN32) +# pragma pack(pop) +#endif + +/** Process handle + + @see osl_executeProcess + @see osl_terminateProcess + @see osl_freeProcessHandle + @see osl_getProcessInfo + @see osl_joinProcess +*/ +typedef void* oslProcess; + +/** Execute a process. + + Executes the program image provided in strImageName in a new process. + + @param[in] ustrImageName + The file URL of the executable to be started. + Can be NULL in this case the file URL of the executable must be the first element + in ustrArguments. + + @param[in] ustrArguments + An array of argument strings. Can be NULL if strImageName is not NULL. + If strImageName is NULL it is expected that the first element contains + the file URL of the executable to start. + + @param[in] nArguments + The number of arguments provided. If this number is 0 strArguments will be ignored. + + @param[in] Options + A combination of int-constants to describe the mode of execution. + + @param[in] Security + The user and his rights for which the process is started. May be NULL in which case + the process will be started in the context of the current user. + + @param[in] ustrDirectory + The file URL of the working directory of the new process. If the specified directory + does not exist or is inaccessible the working directory of the newly created process + is undefined. If this parameter is NULL or the caller provides an empty string the + new process will have the same current working directory as the calling process. + + @param[in] ustrEnvironments + An array of strings describing environment variables that should be merged into the + environment of the new process. Each string has to be in the form "variable=value". + This parameter can be NULL in which case the new process gets the same environment + as the parent process. + + @param[in] nEnvironmentVars + The number of environment variables to set. + + @param[out] pProcess + Pointer to a oslProcess variable, which receives the handle of the newly created process. + This parameter must not be NULL. + + @retval osl_Process_E_None on success + @retval osl_Process_E_NotFound if the specified executable could not be found</dd> + @retval osl_Process_E_InvalidError if invalid parameters will be detected</dd> + @retval osl_Process_E_Unknown if arbitrary other errors occur</dd> + + @see oslProcessOption + @see osl_executeProcess_WithRedirectedIO + @see osl_freeProcessHandle + @see osl_loginUser +*/ +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_executeProcess( + rtl_uString* ustrImageName, + rtl_uString* ustrArguments[], + sal_uInt32 nArguments, + oslProcessOption Options, + oslSecurity Security, + rtl_uString* ustrDirectory, + rtl_uString* ustrEnvironments[], + sal_uInt32 nEnvironmentVars, + oslProcess* pProcess); + + +/** Execute a process and redirect child process standard IO. + + @param[in] strImageName + The file URL of the executable to be started. + Can be NULL in this case the file URL of the executable must be the first element + in ustrArguments. + + @param[in] ustrArguments + An array of argument strings. Can be NULL if strImageName is not NULL. + If strImageName is NULL it is expected that the first element contains + the file URL of the executable to start. + + @param[in] nArguments + The number of arguments provided. If this number is 0 strArguments will be ignored. + + @param[in] Options + A combination of int-constants to describe the mode of execution. + + @param[in] Security + The user and his rights for which the process is started. May be NULL in which case + the process will be started in the context of the current user. + + @param[in] ustrDirectory + The file URL of the working directory of the new process. If the specified directory + does not exist or is inaccessible the working directory of the newly created process + is undefined. If this parameter is NULL or the caller provides an empty string the + new process will have the same current working directory as the calling process. + + @param[in] ustrEnvironments + An array of strings describing environment variables that should be merged into the + environment of the new process. Each string has to be in the form "variable=value". + This parameter can be NULL in which case the new process gets the same environment + as the parent process. + + @param[in] nEnvironmentVars + The number of environment variables to set. + + @param[out] pProcess + Pointer to a oslProcess variable, which receives the handle of the newly created process. + This parameter must not be NULL. + + @param[out] pChildInputWrite + Pointer to a oslFileHandle variable that receives the handle which can be used to write + to the child process standard input device. The returned handle is not random accessible. + The handle has to be closed with osl_closeFile if no longer used. This parameter can be NULL. + + @param[out] pChildOutputRead + Pointer to a oslFileHandle variable that receives the handle which can be used to read from + the child process standard output device. The returned handle is not random accessible. + The Handle has to be closed with osl_closeFile if no longer used. This parameter can be NULL. + + @param[out] pChildErrorRead + Pointer to a oslFileHandle variable that receives the handle which can be used to read from + the child process standard error device. The returned handle is not random accessible. + The Handle has to be closed with osl_closeFile if no longer used. This parameter can be NULL. + + @retval osl_Process_E_None on success + @retval osl_Process_E_NotFound if the specified executable could not be found + @retval osl_Process_E_InvalidError if invalid parameters will be detected + @retval osl_Process_E_Unknown if arbitrary other errors occur + + @see oslProcessOption + @see osl_executeProcess + @see osl_freeProcessHandle + @see osl_loginUser + @see osl_closeFile +*/ +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_executeProcess_WithRedirectedIO( + rtl_uString* strImageName, + rtl_uString* ustrArguments[], + sal_uInt32 nArguments, + oslProcessOption Options, + oslSecurity Security, + rtl_uString* ustrDirectory, + rtl_uString* ustrEnvironments[], + sal_uInt32 nEnvironmentVars, + oslProcess* pProcess, + oslFileHandle* pChildInputWrite, + oslFileHandle* pChildOutputRead, + oslFileHandle* pChildErrorRead); + +/** Terminate a process + + @param[in] Process the handle of the process to be terminated + + @see osl_executeProcess + @see osl_getProcess + @see osl_joinProcess + */ +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_terminateProcess( + oslProcess Process); + + +/** @deprecated + + Retrieve the process handle of a process identifier + + @param[in] Ident a process identifier + + @return the process handle on success, NULL in all other cases + */ +SAL_DLLPUBLIC oslProcess SAL_CALL osl_getProcess( + oslProcessIdentifier Ident) SAL_COLD; + + +/** Free the specified process-handle. + + @param[in] Process +*/ +SAL_DLLPUBLIC void SAL_CALL osl_freeProcessHandle( + oslProcess Process); + + +/** Wait for completion of the specified childprocess. + @param[in] Process + + @retval ols_Process_E_None + + @see osl_executeProcess +*/ +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_joinProcess( + oslProcess Process); + +/** Wait with a timeout for the completion of the specified child + process. + + @param[in] Process A process identifier. + @param[in] pTimeout A timeout value or NULL for infinite waiting. + The unit of resolution is second. + + @retval osl_Process_E_None on success + @retval osl_Process_E_TimedOut waiting for the child process timed out + @retval osl_Process_E_Unknown an error occurred or the parameter are invalid + + @see osl_executeProcess +*/ +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_joinProcessWithTimeout( + oslProcess Process, const TimeValue* pTimeout); + +/** Retrieves information about a Process + @param[in] Process the process handle of the process + @param[in] Fields the information which is to be retrieved + this can be one or more of + osl_Process_IDENTIFIER + osl_Process_EXITCODE + osl_Process_CPUTIMES + osl_Process_HEAPUSAGE + @param[out] pInfo a pointer to a valid oslProcessInfo structure. + the Size field has to be initialized with the size + of the oslProcessInfo structure. + on success the Field member holds the (or'ed) + retrieved valid information fields. + @retval osl_Process_E_None on success + @retval osl_Process_E_Unknown on failure + */ +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_getProcessInfo( + oslProcess Process, oslProcessData Fields, oslProcessInfo* pInfo); + +/** Get the filename of the executable. + @param[out] strFile the string that receives the executable file path. + @return osl_Process_E_None or does not return. + @see osl_executeProcess + + Ideally this will return the true executable file path as a file: + URL, but actually in case something else happens to have been + passed as argv[0] to osl_setCommandArgs(), it will return that + either as a file URL, or as such in case it doesn't look like an + absolute pathname. +*/ +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_getExecutableFile( + rtl_uString **strFile); + +/** @return the number of commandline arguments passed to the main-function of + this process + @see osl_getCommandArg +*/ +SAL_DLLPUBLIC sal_uInt32 SAL_CALL osl_getCommandArgCount(void); + +/** Get the nArg-th command-line argument passed to the main-function of this process. + @param[in] nArg The number of the argument to return. + @param[out] strCommandArg The string receives the nArg-th command-line argument. + @return osl_Process_E_None or does not return. + @see osl_executeProcess +*/ +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_getCommandArg( + sal_uInt32 nArg, rtl_uString **strCommandArg); + +/** Set the command-line arguments as passed to the main-function of this process. + + Deprecated: This function is only for internal use. Passing the args from main will + only work for Unix, on Windows there's no effect, the full command line will automatically + be taken. This is due to Windows 9x/ME limitation that don't allow UTF-16 wmain to provide + a osl_setCommandArgsU( int argc, sal_Unicode **argv ); + + @param[in] argc The number of elements in the argv array. + @param[in] argv The array of command-line arguments. + @see osl_getExecutableFile + @see osl_getCommandArgCount + @see osl_getCommandArg +*/ +SAL_DLLPUBLIC void SAL_CALL osl_setCommandArgs (int argc, char **argv); + +/** Get the value of one environment variable. + @param[in] strVar denotes the name of the variable to get. + @param[out] strValue string that receives the value of environment variable. +*/ +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_getEnvironment( + rtl_uString *strVar, rtl_uString **strValue); + +/** Set the value of one environment variable. + @param[in] strVar denotes the name of the variable to set. + @param[in] strValue string of the new value of environment variable. + + @since UDK 3.2.13 +*/ +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_setEnvironment( + rtl_uString *strVar, rtl_uString *strValue); + +/** Unsets the value of one environment variable. + @param[in] strVar denotes the name of the variable to unset. + + @since UDK 3.2.13 +*/ +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_clearEnvironment( + rtl_uString *strVar); + +/** Get the working directory of the current process as a file URL. + + The file URL is encoded as common for the OSL file API. + @param[out] pustrWorkingDir string that receives the working directory file URL. +*/ + +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_getProcessWorkingDir( + rtl_uString **pustrWorkingDir ); + +/** Get the locale the process is currently running in. + + @param[out] ppLocale a pointer that receives the currently selected locale structure +*/ + +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_getProcessLocale( + rtl_Locale ** ppLocale ); + +/** Change the locale of the process. + + @param[in] pLocale a pointer to the locale to be set + + @deprecated LibreOffice itself does not use this, and client code should + not have good use for it either. It may eventually be removed. +*/ + +SAL_DLLPUBLIC oslProcessError SAL_CALL osl_setProcessLocale( + rtl_Locale * pLocale ); + +#ifdef __cplusplus +} +#endif + +#endif // INCLUDED_OSL_PROCESS_H + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |