/usr/include/gwenhywfar4/gwenhywfar/process.h is in libgwenhywfar-core-dev 4.15.3-5+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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begin : Sat Dec 27 2003
copyright : (C) 2003-2010 by Martin Preuss
email : martin@libchipcard.de
***************************************************************************
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public *
* License as published by the Free Software Foundation; either *
* version 2.1 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
* MA 02111-1307 USA *
* *
***************************************************************************/
#ifndef GWENHYWFAR_PROCESS_H
#define GWENHYWFAR_PROCESS_H
#include <gwenhywfar/gwenhywfarapi.h>
#include <gwenhywfar/types.h>
#include <gwenhywfar/syncio.h>
#include <gwenhywfar/error.h>
/** redirect the child processes stdin channel */
#define GWEN_PROCESS_FLAGS_REDIR_STDIN 0x00000001
/** redirect the child processes stdout channel */
#define GWEN_PROCESS_FLAGS_REDIR_STDOUT 0x00000002
/** redirect the child processes stderr channel */
#define GWEN_PROCESS_FLAGS_REDIR_STDERR 0x00000004
#define GWEN_PROCESS_FLAGS_DEFAULT 0
#ifdef __cplusplus
extern "C" {
#endif
typedef struct GWEN_PROCESS GWEN_PROCESS;
/**
* States a process can assume.
*/
typedef enum {
/** process has not yet been started */
GWEN_ProcessStateNotStarted=0,
/** process is running */
GWEN_ProcessStateRunning,
/** process exited normally */
GWEN_ProcessStateExited,
/** process terminated abnormally (on POSIX systems this is in most
* cases an uncaught signal) */
GWEN_ProcessStateAborted,
/** process has been stopped (unused for now) */
GWEN_ProcessStateStopped,
/** process is in an unknown state */
GWEN_ProcessStateUnknown
} GWEN_PROCESS_STATE;
/**
* Creates a process representation. This does not start a process, it
* simply prepares some data for starting a process.
*/
GWENHYWFAR_API GWEN_PROCESS *GWEN_Process_new(void);
/**
* Frees process data. This does not stop the process represented by this
* data. You should only free this data after the process has terminated
* or if you are not interested in the result of the process (because
* after freeing this data there is no way to communicate with the process).
*/
GWENHYWFAR_API void GWEN_Process_free(GWEN_PROCESS *pr);
/**
* Returns the current process flags
* (see @ref GWEN_PROCESS_FLAGS_REDIR_STDOUT and others)
*/
GWENHYWFAR_API
uint32_t GWEN_Process_GetFlags(const GWEN_PROCESS *pr);
/**
* Sets the process flags to the given value
* (see @ref GWEN_PROCESS_FLAGS_REDIR_STDOUT and others)
*/
GWENHYWFAR_API
void GWEN_Process_SetFlags(GWEN_PROCESS *pr, uint32_t f);
/**
* Adds the given flag to the current process flags
* (see @ref GWEN_PROCESS_FLAGS_REDIR_STDOUT and others)
*/
GWENHYWFAR_API
void GWEN_Process_AddFlags(GWEN_PROCESS *pr, uint32_t f);
/**
* Removes the given flag from the current process flags
* (see @ref GWEN_PROCESS_FLAGS_REDIR_STDOUT and others)
*/
GWENHYWFAR_API
void GWEN_Process_SubFlags(GWEN_PROCESS *pr, uint32_t f);
/**
* Starts the given process.
* @param pr pointer to process data
* @param prg path and name of the program to start
* @param args command line arguments for the program (MUST NOT contain
* the name of the program)
*/
GWENHYWFAR_API GWEN_PROCESS_STATE GWEN_Process_Start(GWEN_PROCESS *pr,
const char *prg,
const char *args);
/**
* Checks for the current state of the given process.
*/
GWENHYWFAR_API GWEN_PROCESS_STATE GWEN_Process_CheckState(GWEN_PROCESS *pr);
/**
* Returns the result of a process. This process must have terminated
* in order to return a result.
*/
GWENHYWFAR_API int GWEN_Process_GetResult(GWEN_PROCESS *pr);
/**
* Waits for the termination of the given process.
*/
GWENHYWFAR_API int GWEN_Process_Wait(GWEN_PROCESS *pr);
/**
* Terminates a process immediately (on POSIX systems this is performed
* by sending a KILL signal).
* This function waits for the process to terminate.
*/
GWENHYWFAR_API int GWEN_Process_Terminate(GWEN_PROCESS *pr);
/**
* Returns a GWEN_BUFFEREDIO which can be used to write data to be
* received by the process via stdin. Returns 0 if the process does not
* have the flag @ref GWEN_PROCESS_FLAGS_REDIR_STDIN set.
*/
GWENHYWFAR_API
GWEN_SYNCIO *GWEN_Process_GetStdin(const GWEN_PROCESS *pr);
/**
* Returns a GWEN_BUFFEREDIO which can be used to read data written by
* the process via stdout. Returns 0 if the process does not
* have the flag @ref GWEN_PROCESS_FLAGS_REDIR_STDOUT set.
*/
GWENHYWFAR_API
GWEN_SYNCIO *GWEN_Process_GetStdout(const GWEN_PROCESS *pr);
/**
* Returns a GWEN_BUFFEREDIO which can be used to read data written by
* the process via stderr. Returns 0 if the process does not
* have the flag @ref GWEN_PROCESS_FLAGS_REDIR_STDERR set.
*/
GWENHYWFAR_API
GWEN_SYNCIO *GWEN_Process_GetStderr(const GWEN_PROCESS *pr);
#ifdef __cplusplus
}
#endif
#endif /* GWENHYWFAR_PROCESS_H */
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