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/*============================================================================
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KWSys - Kitware System Library
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#ifndef @KWSYS_NAMESPACE@_Process_h
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#define @KWSYS_NAMESPACE@_Process_h
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#include <@KWSYS_NAMESPACE@/Configure.h>
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/* Redefine all public interface symbol names to be in the proper
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namespace. These macros are used internally to kwsys only, and are
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not visible to user code. Use kwsysHeaderDump.pl to reproduce
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these macros after making changes to the interface. */
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#if !defined(KWSYS_NAMESPACE)
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# define kwsys_ns(x) @KWSYS_NAMESPACE@##x
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# define kwsysEXPORT @KWSYS_NAMESPACE@_EXPORT
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#endif
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#if !@KWSYS_NAMESPACE@_NAME_IS_KWSYS
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# define kwsysProcess kwsys_ns(Process)
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# define kwsysProcess_s kwsys_ns(Process_s)
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# define kwsysProcess_New kwsys_ns(Process_New)
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# define kwsysProcess_Delete kwsys_ns(Process_Delete)
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# define kwsysProcess_SetCommand kwsys_ns(Process_SetCommand)
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# define kwsysProcess_AddCommand kwsys_ns(Process_AddCommand)
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# define kwsysProcess_SetTimeout kwsys_ns(Process_SetTimeout)
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# define kwsysProcess_SetWorkingDirectory kwsys_ns(Process_SetWorkingDirectory)
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# define kwsysProcess_SetPipeFile kwsys_ns(Process_SetPipeFile)
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# define kwsysProcess_SetPipeNative kwsys_ns(Process_SetPipeNative)
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# define kwsysProcess_SetPipeShared kwsys_ns(Process_SetPipeShared)
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# define kwsysProcess_Option_Detach kwsys_ns(Process_Option_Detach)
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# define kwsysProcess_Option_HideWindow kwsys_ns(Process_Option_HideWindow)
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# define kwsysProcess_Option_MergeOutput kwsys_ns(Process_Option_MergeOutput)
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# define kwsysProcess_Option_Verbatim kwsys_ns(Process_Option_Verbatim)
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# define kwsysProcess_Option_CreateProcessGroup kwsys_ns(Process_Option_CreateProcessGroup)
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# define kwsysProcess_GetOption kwsys_ns(Process_GetOption)
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# define kwsysProcess_SetOption kwsys_ns(Process_SetOption)
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# define kwsysProcess_Option_e kwsys_ns(Process_Option_e)
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# define kwsysProcess_State_Starting kwsys_ns(Process_State_Starting)
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# define kwsysProcess_State_Error kwsys_ns(Process_State_Error)
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# define kwsysProcess_State_Exception kwsys_ns(Process_State_Exception)
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# define kwsysProcess_State_Executing kwsys_ns(Process_State_Executing)
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# define kwsysProcess_State_Exited kwsys_ns(Process_State_Exited)
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# define kwsysProcess_State_Expired kwsys_ns(Process_State_Expired)
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# define kwsysProcess_State_Killed kwsys_ns(Process_State_Killed)
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# define kwsysProcess_State_Disowned kwsys_ns(Process_State_Disowned)
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# define kwsysProcess_GetState kwsys_ns(Process_GetState)
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# define kwsysProcess_State_e kwsys_ns(Process_State_e)
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# define kwsysProcess_Exception_None kwsys_ns(Process_Exception_None)
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# define kwsysProcess_Exception_Fault kwsys_ns(Process_Exception_Fault)
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# define kwsysProcess_Exception_Illegal kwsys_ns(Process_Exception_Illegal)
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# define kwsysProcess_Exception_Interrupt kwsys_ns(Process_Exception_Interrupt)
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# define kwsysProcess_Exception_Numerical kwsys_ns(Process_Exception_Numerical)
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# define kwsysProcess_Exception_Other kwsys_ns(Process_Exception_Other)
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# define kwsysProcess_GetExitException kwsys_ns(Process_GetExitException)
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# define kwsysProcess_Exception_e kwsys_ns(Process_Exception_e)
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# define kwsysProcess_GetExitCode kwsys_ns(Process_GetExitCode)
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# define kwsysProcess_GetExitValue kwsys_ns(Process_GetExitValue)
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# define kwsysProcess_GetErrorString kwsys_ns(Process_GetErrorString)
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# define kwsysProcess_GetExceptionString kwsys_ns(Process_GetExceptionString)
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# define kwsysProcess_Execute kwsys_ns(Process_Execute)
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# define kwsysProcess_Disown kwsys_ns(Process_Disown)
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# define kwsysProcess_WaitForData kwsys_ns(Process_WaitForData)
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# define kwsysProcess_Pipes_e kwsys_ns(Process_Pipes_e)
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# define kwsysProcess_Pipe_None kwsys_ns(Process_Pipe_None)
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# define kwsysProcess_Pipe_STDIN kwsys_ns(Process_Pipe_STDIN)
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# define kwsysProcess_Pipe_STDOUT kwsys_ns(Process_Pipe_STDOUT)
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# define kwsysProcess_Pipe_STDERR kwsys_ns(Process_Pipe_STDERR)
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# define kwsysProcess_Pipe_Timeout kwsys_ns(Process_Pipe_Timeout)
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# define kwsysProcess_Pipe_Handle kwsys_ns(Process_Pipe_Handle)
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# define kwsysProcess_WaitForExit kwsys_ns(Process_WaitForExit)
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# define kwsysProcess_Interrupt kwsys_ns(Process_Interrupt)
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# define kwsysProcess_Kill kwsys_ns(Process_Kill)
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#endif
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#if defined(__cplusplus)
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extern "C"
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{
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#endif
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/**
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* Process control data structure.
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*/
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typedef struct kwsysProcess_s kwsysProcess;
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/* Platform-specific pipe handle type. */
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#if defined(_WIN32) && !defined(__CYGWIN__)
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typedef void* kwsysProcess_Pipe_Handle;
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#else
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typedef int kwsysProcess_Pipe_Handle;
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#endif
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/**
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* Create a new Process instance.
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*/
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kwsysEXPORT kwsysProcess* kwsysProcess_New(void);
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/**
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* Delete an existing Process instance. If the instance is currently
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* executing a process, this blocks until the process terminates.
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*/
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kwsysEXPORT void kwsysProcess_Delete(kwsysProcess* cp);
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/**
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* Set the command line to be executed. Argument is an array of
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* pointers to the command and each argument. The array must end with
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* a NULL pointer. Any previous command lines are removed. Returns
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* 1 for success and 0 otherwise.
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*/
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kwsysEXPORT int kwsysProcess_SetCommand(kwsysProcess* cp,
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char const* const* command);
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/**
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* Add a command line to be executed. Argument is an array of
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* pointers to the command and each argument. The array must end with
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* a NULL pointer. If this is not the first command added, its
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* standard input will be connected to the standard output of the
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* previous command. Returns 1 for success and 0 otherwise.
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*/
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kwsysEXPORT int kwsysProcess_AddCommand(kwsysProcess* cp,
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char const* const* command);
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/**
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* Set the timeout in seconds for the child process. The timeout
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* period begins when the child is executed. If the child has not
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* terminated when the timeout expires, it will be killed. A
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* non-positive (<= 0) value will disable the timeout.
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*/
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kwsysEXPORT void kwsysProcess_SetTimeout(kwsysProcess* cp, double timeout);
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/**
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* Set the working directory for the child process. The working
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* directory can be absolute or relative to the current directory.
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* Returns 1 for success and 0 for failure.
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*/
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kwsysEXPORT int kwsysProcess_SetWorkingDirectory(kwsysProcess* cp,
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const char* dir);
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/**
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* Set the name of a file to be attached to the given pipe. Returns 1
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* for success and 0 for failure.
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*/
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kwsysEXPORT int kwsysProcess_SetPipeFile(kwsysProcess* cp, int pipe,
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const char* file);
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/**
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* Set whether the given pipe in the child is shared with the parent
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* process. The default is no for Pipe_STDOUT and Pipe_STDERR and yes
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* for Pipe_STDIN.
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*/
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kwsysEXPORT void kwsysProcess_SetPipeShared(kwsysProcess* cp, int pipe,
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int shared);
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/**
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* Specify a platform-specific native pipe for use as one of the child
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* interface pipes. The native pipe is specified by an array of two
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* descriptors or handles. The first entry in the array (index 0)
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* should be the read end of the pipe. The second entry in the array
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* (index 1) should be the write end of the pipe. If a null pointer
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* is given the option will be disabled.
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*
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* For Pipe_STDIN the native pipe is connected to the first child in
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* the pipeline as its stdin. After the children are created the
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* write end of the pipe will be closed in the child process and the
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* read end will be closed in the parent process.
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*
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* For Pipe_STDOUT and Pipe_STDERR the pipe is connected to the last
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* child as its stdout or stderr. After the children are created the
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* write end of the pipe will be closed in the parent process and the
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* read end will be closed in the child process.
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*/
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kwsysEXPORT void kwsysProcess_SetPipeNative(kwsysProcess* cp, int pipe,
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kwsysProcess_Pipe_Handle p[2]);
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/**
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* Get/Set a possibly platform-specific option. Possible options are:
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*
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* kwsysProcess_Option_Detach = Whether to detach the process.
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* 0 = No (default)
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* 1 = Yes
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*
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* kwsysProcess_Option_HideWindow = Whether to hide window on Windows.
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* 0 = No (default)
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* 1 = Yes
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*
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* kwsysProcess_Option_MergeOutput = Whether to merge stdout/stderr.
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* No content will be returned as stderr.
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* Any actual stderr will be on stdout.
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* 0 = No (default)
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* 1 = Yes
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*
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* kwsysProcess_Option_Verbatim = Whether SetCommand and AddCommand
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* should treat the first argument
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* as a verbatim command line
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* and ignore the rest of the arguments.
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* 0 = No (default)
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* 1 = Yes
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*
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* kwsysProcess_Option_CreateProcessGroup = Whether to place the process in a
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* new process group. This is
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* useful if you want to send Ctrl+C
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* to the process. On UNIX, also
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* places the process in a new
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* session.
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* 0 = No (default)
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* 1 = Yes
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*/
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kwsysEXPORT int kwsysProcess_GetOption(kwsysProcess* cp, int optionId);
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kwsysEXPORT void kwsysProcess_SetOption(kwsysProcess* cp, int optionId,
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int value);
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enum kwsysProcess_Option_e
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{
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kwsysProcess_Option_HideWindow,
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kwsysProcess_Option_Detach,
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kwsysProcess_Option_MergeOutput,
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kwsysProcess_Option_Verbatim,
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kwsysProcess_Option_CreateProcessGroup
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};
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/**
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* Get the current state of the Process instance. Possible states are:
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*
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* kwsysProcess_State_Starting = Execute has not yet been called.
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* kwsysProcess_State_Error = Error administrating the child process.
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* kwsysProcess_State_Exception = Child process exited abnormally.
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* kwsysProcess_State_Executing = Child process is currently running.
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* kwsysProcess_State_Exited = Child process exited normally.
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* kwsysProcess_State_Expired = Child process's timeout expired.
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* kwsysProcess_State_Killed = Child process terminated by Kill method.
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* kwsysProcess_State_Disowned = Child is no longer managed by this object.
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*/
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kwsysEXPORT int kwsysProcess_GetState(kwsysProcess* cp);
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enum kwsysProcess_State_e
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{
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kwsysProcess_State_Starting,
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kwsysProcess_State_Error,
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kwsysProcess_State_Exception,
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kwsysProcess_State_Executing,
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kwsysProcess_State_Exited,
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kwsysProcess_State_Expired,
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kwsysProcess_State_Killed,
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kwsysProcess_State_Disowned
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};
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/**
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* When GetState returns "Exception", this method returns a
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* platform-independent description of the exceptional behavior that
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* caused the child to terminate abnormally. Possible exceptions are:
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*
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* kwsysProcess_Exception_None = No exceptional behavior occurred.
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* kwsysProcess_Exception_Fault = Child crashed with a memory fault.
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* kwsysProcess_Exception_Illegal = Child crashed with an illegal instruction.
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* kwsysProcess_Exception_Interrupt = Child was interrupted by user (Cntl-C/Break).
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* kwsysProcess_Exception_Numerical = Child crashed with a numerical exception.
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* kwsysProcess_Exception_Other = Child terminated for another reason.
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*/
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kwsysEXPORT int kwsysProcess_GetExitException(kwsysProcess* cp);
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enum kwsysProcess_Exception_e
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{
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kwsysProcess_Exception_None,
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kwsysProcess_Exception_Fault,
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kwsysProcess_Exception_Illegal,
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kwsysProcess_Exception_Interrupt,
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kwsysProcess_Exception_Numerical,
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kwsysProcess_Exception_Other
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};
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/**
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* When GetState returns "Exited" or "Exception", this method returns
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* the platform-specific raw exit code of the process. UNIX platforms
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* should use WIFEXITED/WEXITSTATUS and WIFSIGNALED/WTERMSIG to access
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* this value. Windows users should compare the value to the various
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* EXCEPTION_* values.
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*
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* If GetState returns "Exited", use GetExitValue to get the
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* platform-independent child return value.
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*/
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kwsysEXPORT int kwsysProcess_GetExitCode(kwsysProcess* cp);
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/**
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* When GetState returns "Exited", this method returns the child's
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* platform-independent exit code (such as the value returned by the
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* child's main).
|
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|
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|
*/
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|
|
|
kwsysEXPORT int kwsysProcess_GetExitValue(kwsysProcess* cp);
|
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|
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|
|
|
/**
|
|
|
|
|
* When GetState returns "Error", this method returns a string
|
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|
|
|
* describing the problem. Otherwise, it returns NULL.
|
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|
|
|
*/
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|
|
kwsysEXPORT const char* kwsysProcess_GetErrorString(kwsysProcess* cp);
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|
/**
|
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|
* When GetState returns "Exception", this method returns a string
|
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|
* describing the problem. Otherwise, it returns NULL.
|
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|
*/
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|
kwsysEXPORT const char* kwsysProcess_GetExceptionString(kwsysProcess* cp);
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/**
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|
* Start executing the child process.
|
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|
*/
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|
kwsysEXPORT void kwsysProcess_Execute(kwsysProcess* cp);
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|
/**
|
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|
|
* Stop management of a detached child process. This closes any pipes
|
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|
|
|
* being read. If the child was not created with the
|
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|
* kwsysProcess_Option_Detach option, this method does nothing. This
|
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|
|
* is because disowning a non-detached process will cause the child
|
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|
|
* exit signal to be left unhandled until this process exits.
|
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|
|
|
*/
|
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|
|
kwsysEXPORT void kwsysProcess_Disown(kwsysProcess* cp);
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|
|
/**
|
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|
|
* Block until data are available on a pipe, a timeout expires, or the
|
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|
|
|
* child process terminates. Arguments are as follows:
|
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|
|
*
|
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|
|
* data = If data are read, the pointer to which this points is
|
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|
|
* set to point to the data.
|
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|
|
* length = If data are read, the integer to which this points is
|
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|
|
* set to the length of the data read.
|
|
|
|
|
* timeout = Specifies the maximum time this call may block. Upon
|
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|
|
|
* return after reading data, the time elapsed is subtracted
|
|
|
|
|
* from the timeout value. If this timeout expires, the
|
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|
|
* value is set to 0. A NULL pointer passed for this argument
|
|
|
|
|
* indicates no timeout for the call. A negative or zero
|
|
|
|
|
* value passed for this argument may be used for polling
|
|
|
|
|
* and will always return immediately.
|
|
|
|
|
*
|
|
|
|
|
* Return value will be one of:
|
|
|
|
|
*
|
|
|
|
|
* Pipe_None = No more data will be available from the child process,
|
|
|
|
|
* ( == 0) or no process has been executed. WaitForExit should
|
|
|
|
|
* be called to wait for the process to terminate.
|
|
|
|
|
* Pipe_STDOUT = Data have been read from the child's stdout pipe.
|
|
|
|
|
* Pipe_STDERR = Data have been read from the child's stderr pipe.
|
|
|
|
|
* Pipe_Timeout = No data available within timeout specified for the
|
|
|
|
|
* call. Time elapsed has been subtracted from timeout
|
|
|
|
|
* argument.
|
|
|
|
|
*/
|
|
|
|
|
kwsysEXPORT int kwsysProcess_WaitForData(kwsysProcess* cp, char** data,
|
|
|
|
|
int* length, double* timeout);
|
|
|
|
|
enum kwsysProcess_Pipes_e
|
|
|
|
|
{
|
|
|
|
|
kwsysProcess_Pipe_None,
|
|
|
|
|
kwsysProcess_Pipe_STDIN,
|
|
|
|
|
kwsysProcess_Pipe_STDOUT,
|
|
|
|
|
kwsysProcess_Pipe_STDERR,
|
|
|
|
|
kwsysProcess_Pipe_Timeout=255
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Block until the child process terminates or the given timeout
|
|
|
|
|
* expires. If no process is running, returns immediatly. The
|
|
|
|
|
* argument is:
|
|
|
|
|
*
|
|
|
|
|
* timeout = Specifies the maximum time this call may block. Upon
|
|
|
|
|
* returning due to child termination, the elapsed time
|
|
|
|
|
* is subtracted from the given value. A NULL pointer
|
|
|
|
|
* passed for this argument indicates no timeout for the
|
|
|
|
|
* call.
|
|
|
|
|
*
|
|
|
|
|
* Return value will be one of:
|
|
|
|
|
*
|
|
|
|
|
* 0 = Child did not terminate within timeout specified for
|
|
|
|
|
* the call. Time elapsed has been subtracted from timeout
|
|
|
|
|
* argument.
|
|
|
|
|
* 1 = Child has terminated or was not running.
|
|
|
|
|
*/
|
|
|
|
|
kwsysEXPORT int kwsysProcess_WaitForExit(kwsysProcess* cp, double* timeout);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Interrupt the process group for the child process that is currently
|
|
|
|
|
* running by sending it the appropriate operating-system specific signal.
|
|
|
|
|
* The caller should call WaitForExit after this returns to wait for the
|
|
|
|
|
* child to terminate.
|
|
|
|
|
*
|
|
|
|
|
* WARNING: If you didn't specify kwsysProcess_Option_CreateProcessGroup,
|
|
|
|
|
* you will interrupt your own process group.
|
|
|
|
|
*/
|
|
|
|
|
kwsysEXPORT void kwsysProcess_Interrupt(kwsysProcess* cp);
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* Forcefully terminate the child process that is currently running.
|
|
|
|
|
* The caller should call WaitForExit after this returns to wait for
|
|
|
|
|
* the child to terminate.
|
|
|
|
|
*/
|
|
|
|
|
kwsysEXPORT void kwsysProcess_Kill(kwsysProcess* cp);
|
|
|
|
|
|
|
|
|
|
#if defined(__cplusplus)
|
|
|
|
|
} /* extern "C" */
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* If we are building a kwsys .c or .cxx file, let it use these macros.
|
|
|
|
|
Otherwise, undefine them to keep the namespace clean. */
|
|
|
|
|
#if !defined(KWSYS_NAMESPACE)
|
|
|
|
|
# undef kwsys_ns
|
|
|
|
|
# undef kwsysEXPORT
|
|
|
|
|
# if !@KWSYS_NAMESPACE@_NAME_IS_KWSYS
|
|
|
|
|
# undef kwsysProcess
|
|
|
|
|
# undef kwsysProcess_s
|
|
|
|
|
# undef kwsysProcess_New
|
|
|
|
|
# undef kwsysProcess_Delete
|
|
|
|
|
# undef kwsysProcess_SetCommand
|
|
|
|
|
# undef kwsysProcess_AddCommand
|
|
|
|
|
# undef kwsysProcess_SetTimeout
|
|
|
|
|
# undef kwsysProcess_SetWorkingDirectory
|
|
|
|
|
# undef kwsysProcess_SetPipeFile
|
|
|
|
|
# undef kwsysProcess_SetPipeNative
|
|
|
|
|
# undef kwsysProcess_SetPipeShared
|
|
|
|
|
# undef kwsysProcess_Option_Detach
|
|
|
|
|
# undef kwsysProcess_Option_HideWindow
|
|
|
|
|
# undef kwsysProcess_Option_MergeOutput
|
|
|
|
|
# undef kwsysProcess_Option_Verbatim
|
|
|
|
|
# undef kwsysProcess_Option_CreateProcessGroup
|
|
|
|
|
# undef kwsysProcess_GetOption
|
|
|
|
|
# undef kwsysProcess_SetOption
|
|
|
|
|
# undef kwsysProcess_Option_e
|
|
|
|
|
# undef kwsysProcess_State_Starting
|
|
|
|
|
# undef kwsysProcess_State_Error
|
|
|
|
|
# undef kwsysProcess_State_Exception
|
|
|
|
|
# undef kwsysProcess_State_Executing
|
|
|
|
|
# undef kwsysProcess_State_Exited
|
|
|
|
|
# undef kwsysProcess_State_Expired
|
|
|
|
|
# undef kwsysProcess_State_Killed
|
|
|
|
|
# undef kwsysProcess_State_Disowned
|
|
|
|
|
# undef kwsysProcess_GetState
|
|
|
|
|
# undef kwsysProcess_State_e
|
|
|
|
|
# undef kwsysProcess_Exception_None
|
|
|
|
|
# undef kwsysProcess_Exception_Fault
|
|
|
|
|
# undef kwsysProcess_Exception_Illegal
|
|
|
|
|
# undef kwsysProcess_Exception_Interrupt
|
|
|
|
|
# undef kwsysProcess_Exception_Numerical
|
|
|
|
|
# undef kwsysProcess_Exception_Other
|
|
|
|
|
# undef kwsysProcess_GetExitException
|
|
|
|
|
# undef kwsysProcess_Exception_e
|
|
|
|
|
# undef kwsysProcess_GetExitCode
|
|
|
|
|
# undef kwsysProcess_GetExitValue
|
|
|
|
|
# undef kwsysProcess_GetErrorString
|
|
|
|
|
# undef kwsysProcess_GetExceptionString
|
|
|
|
|
# undef kwsysProcess_Execute
|
|
|
|
|
# undef kwsysProcess_Disown
|
|
|
|
|
# undef kwsysProcess_WaitForData
|
|
|
|
|
# undef kwsysProcess_Pipes_e
|
|
|
|
|
# undef kwsysProcess_Pipe_None
|
|
|
|
|
# undef kwsysProcess_Pipe_STDIN
|
|
|
|
|
# undef kwsysProcess_Pipe_STDOUT
|
|
|
|
|
# undef kwsysProcess_Pipe_STDERR
|
|
|
|
|
# undef kwsysProcess_Pipe_Timeout
|
|
|
|
|
# undef kwsysProcess_Pipe_Handle
|
|
|
|
|
# undef kwsysProcess_WaitForExit
|
|
|
|
|
# undef kwsysProcess_Interrupt
|
|
|
|
|
# undef kwsysProcess_Kill
|
|
|
|
|
# endif
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#endif
|
