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Added open-pipe* and open-input-output-pipe.

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This commit is contained in:
Marius Vollmer 2004-12-22 15:01:53 +00:00
parent 0f3eb62779
commit 7064e449bd
1 changed files with 16 additions and 4 deletions
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20
doc/ref/posix.texi
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@ -1838,10 +1838,18 @@ module:
@findex popen @findex popen
@deffn {Scheme Procedure} open-pipe command modes @deffn {Scheme Procedure} open-pipe command modes
Executes the shell command @var{command} (a string) in a subprocess. Executes the shell command @var{command} (a string) in a subprocess. A
A pipe to the process is created and returned. @var{modes} specifies pipe to the process is created and returned. @var{modes} specifies
whether an input or output pipe to the process is created: it should whether an input or output pipe to the process is created: it should be
be the value of @code{OPEN_READ} or @code{OPEN_WRITE}. the value of @code{OPEN_READ}, @code{OPEN_WRITE}, or @code{OPEN_BOTH}.
@end deffn
@deffn {Scheme Procedure} open-pipe* mode command [args...]
Executes the program @var{command} with optional arguments @var{args}
(all strings) in a subprocess. A port to the process (based on pipes)
is created and returned. @var{modes} specifies whether an input, an
output or an input-output port to the process is created: it should be
the value of @code{OPEN_READ}, @code{OPEN_WRITE}, or @code{OPEN_BOTH}.
@end deffn @end deffn
@deffn {Scheme Procedure} open-input-pipe command @deffn {Scheme Procedure} open-input-pipe command
@ -1860,6 +1868,10 @@ Equivalent to @code{open-pipe} with mode @code{OPEN_READ}.
Equivalent to @code{open-pipe} with mode @code{OPEN_WRITE}. Equivalent to @code{open-pipe} with mode @code{OPEN_WRITE}.
@end deffn @end deffn
@deffn {Scheme Procedure} open-input-output-pipe command
Equivalent to @code{open-pipe} with mode @code{OPEN_BOTH}.
@end deffn
@findex pclose @findex pclose
@deffn {Scheme Procedure} close-pipe port @deffn {Scheme Procedure} close-pipe port
Closes the pipe created by @code{open-pipe}, then waits for the process Closes the pipe created by @code{open-pipe}, then waits for the process