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- Contained in the directory with these notes are sources which produce
- two versions of a "popen/pclose" pair for AmigaDos. The first, "popen.c"
- is implemented using the ARP AsyncRun() function and seems to run fine
- under either AmigaDos 1.3.2 or AmigaDos 2.0.2. The second, "popen2.c" is
- implemented using the new AmigaDos 2.0 CreateNewProc() and System()
- functions and works ONLY on AmigaDos 2.0.2. Both versions use the standard
- AmigaDos PIPE: device and use the process ID to ensure that the pipe name
- is unique.
-
- Also included is a program to link with either popen version for testing
- purposes and a couple of **real** simple programs to execute through
- the pipe to test the functionallity. See the comments in "pipetst.c",
- "tst.c" and "cat.c" for more information.
-
- There is a Makefile included. You should be able to just type "lmk" and
- have it produce the ARP version of everything provided that you have
- put the arp headers in your include path. You can also type "lmk all2"
- to have it make the Dos2.0 version ... but you MUST have the 2.0 include
- files installed!
-
- I have been using the ARP version of popen in the RCS system for quite
- a while and it has worked flawlessly. (Ray Brand put a slightly different
- version of popen into the RCS that was shipped everywhere because he
- didn't want to have any dependencies on ARP in the system). I have
- also used it in a couple of other applications and the only problem I
- have encountered is that, Under AmigaDos 2.0, the AsyncRun function can't
- find the resident programs set up by the Shell (Stack, Path, and other
- commands were moved into the shell and are no longer stand-alone commands).
- Of course, the 2.0 version hasn't received as much testing but it has
- worked with nearly every Dos command I've got. I would enjoy hearing from
- anyone who finds this stuff useful and/or informative. If you find
- any problems or make improvements to this code please let me know about
- it! My various addresses are:
-
- UseNet: ricks@isc-br.isc-br.com or uunet!isc-br.isc-br.com!ricks
- bix: schaef
- Compuserve: 70120,174
- Phone: (509) 928-3533
-
- Rick Schaeffer
-