Difference between revisions of "fcl-process"

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'''fcl-process''' is a package that contains multiple units for executing and interfacing (by pipes) with other programs. The most prominent member is the '''Process.TProcess''' class that is used
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'''fcl-process''' is a package that contains multiple units for executing and interfacing (by pipes) with other programs. The most prominent member is the '''Process.TProcess''' class that is used by Lazarus and described and documented elsewhere, like [[Executing_External_Programs#TProcess|TProcess]] and has its own documentation in the FPC Free Component Library (FCL) manual.
by Lazarus and described and documented elsewhere, like [[Executing_External_Programs#TProcess|TProcess]] and has its own documentation in the FCL tome of the FPC Manuals.
 
  
The '''pipes''' unit implements basic pipe stream classes for use by the other units. The dbug* units implement a simple remote logging/inspection interface.
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The '''pipes''' unit implements basic pipe stream classes for use by the other units.  
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The dbug* units implement a simple remote logging/inspection interface. See also [[DebugServer]].
  
 
= units =  
 
= units =  
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= Notes =  
 
= Notes =  
* on *nix to fool programs that check for a pty, forkpty might have to be used instead of fork See [http://forum.lazarus.freepascal.org/index.php?topic=22912.0;topicseen]  Openpty and forkpty (which uses openpty) are not posix though. On FreeBSD these functions are not in libc but in libutil, and seem to be a shell over POSIX openpt and ptsname functions with some IOCTLs thrown in.
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* To fool programs that check for a pty on Unix/Linux, forkpty might have to be used instead of fork. See [http://forum.lazarus.freepascal.org/index.php?topic=22912.0;topicseen]. Openpty and forkpty (which uses openpty) are not POSIX calls though. On FreeBSD, these functions are not in libc but in libutil, and seem to be a shell over POSIX openpt and ptsname functions with some IOCTLs thrown in.
  
 
[[Category: Free Component Library]]
 
[[Category: Free Component Library]]
 
[[Category:Inter-process communication]]
 
[[Category:Inter-process communication]]

Revision as of 11:26, 20 June 2014


fcl-process is a package that contains multiple units for executing and interfacing (by pipes) with other programs. The most prominent member is the Process.TProcess class that is used by Lazarus and described and documented elsewhere, like TProcess and has its own documentation in the FPC Free Component Library (FCL) manual.

The pipes unit implements basic pipe stream classes for use by the other units.

The dbug* units implement a simple remote logging/inspection interface. See also DebugServer.

units

Unit - Comment
process - Contains TProcess class for executing external programs (and some related utility functions)
pipes - Input and output pipe stream class used by process.
simpleipc - Unit implementing one-way IPC between 2 processes
dbugintf - Debugserver client interface, based on SimpleIPC
dbugmsg - Debugserver Client/Server common code.

Notes

  • To fool programs that check for a pty on Unix/Linux, forkpty might have to be used instead of fork. See [1]. Openpty and forkpty (which uses openpty) are not POSIX calls though. On FreeBSD, these functions are not in libc but in libutil, and seem to be a shell over POSIX openpt and ptsname functions with some IOCTLs thrown in.