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/*----------------------------------------------------------------------------
Subprocess.h
From Subprocess example by Charles L. Oei
pty support by Joe Freeman
with encouragement from Kristofer Younger
Subprocess Example, Release 2.0
NeXT Computer, Inc.
You may freely copy, distribute and reuse the code in this example.
NeXT disclaims any warranty of any kind, expressed or implied, as to
its fitness for any particular use.
This subprocess object sends/receives data to/from any UNIX
subprocess asynchronously (via vfork/pipe).
Its delegate, if any, will receive the following messages:
- subprocess:sender done:(int)exitStatus;
sent when the subprocess exits
- subprocess:sender output:(char *)buffer;
sent whenever there is data on the standard output pipe;
buffer is only valid until next call
- subprocess:sender stderrOutput:(char *)buffer;
sent whenever there is data on the standard error pipe;
buffer is only valid until next call.
- subprocess:sender error:(const char *)errorString;
sent when an error occurs;
if it ever happens, it's usually only at startup time
REVISIONS
Subprocess.h,v
* Revision 1.3 1993/02/01 02:21:29 nwc
* Added baud rate button. Cleaned interface. Fixed subprocess bug.
*
* Revision 1.2 1992/09/03 16:33:45 nwc
* Clean up after Subprocesses.
*
* Revision 1.1.1.1 1992/08/18 14:34:20 nwc
* GENESIS
*
* Revision 1.1 1992/07/04 03:17:22 nwc
* Initial revision
*
----------------------------------------------------------------------------*/
#import <stdio.h>
#import <objc/Object.h>
#define SUBPROCESS_STOPPED -1
#define SUBPROCESS_SIGNALED -2
@interface Subprocess:Object
{
FILE *fpToChild;
FILE *fpFromChild;
int fromChild;
int stderrFromChild;
int childPid;
id delegate;
char outputBuffer[BUFSIZ];
int outputBufferLen;
int stderrBufferLen;
char stderrBuffer[BUFSIZ];
BOOL paused;
BOOL running;
BOOL markedForFree; /* free's are delayed */
}
- init:(const char *)subprocessString;
- init:(const char *)subprocessString withDelegate:theDelegate;
- setDelegate:anObject;
- delegate;
- send:(const char *)string withNewline:(BOOL)wantNewline;
- send:(const char *)string;
- (int)pid;
- (BOOL)isPaused;
- pause:sender;
- resume:sender;
- (BOOL)isRunning;
- terminate:sender;
- terminateInput;
@end
@interface Object(SubprocessDelegate)
- subprocess:sender done:(int)exitStatus;
- subprocess:sender output:(char *)buffer;
- subprocess:sender stderrOutput:(char *)buffer;
- subprocess:sender error:(const char *)errorString;
@end
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.