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author | Ben Tilly <ben_tilly@operamail.com> | 2005-08-22 01:30:14 -0700 |
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committer | Rafael Garcia-Suarez <rgarciasuarez@gmail.com> | 2005-08-22 15:41:15 +0000 |
commit | 3ce239a037d49e310d47ffca0fa9c35c0a28abac (patch) | |
tree | 1bd478905b11dedc0654b73ad0ef171681a505b0 /lib/IPC | |
parent | 984a4bea51971bb283e220c062d5c48cc4392e13 (diff) | |
download | perl-3ce239a037d49e310d47ffca0fa9c35c0a28abac.tar.gz |
Re: Documentation change for IPC::Open*.pm
Message-ID: <acc274b3050822083093357fe@mail.gmail.com>
p4raw-id: //depot/perl@25320
Diffstat (limited to 'lib/IPC')
-rw-r--r-- | lib/IPC/Open2.pm | 24 | ||||
-rw-r--r-- | lib/IPC/Open3.pm | 24 |
2 files changed, 25 insertions, 23 deletions
diff --git a/lib/IPC/Open2.pm b/lib/IPC/Open2.pm index a5a3561794..ecd1e7f9de 100644 --- a/lib/IPC/Open2.pm +++ b/lib/IPC/Open2.pm @@ -6,7 +6,7 @@ our ($VERSION, @ISA, @EXPORT); require 5.000; require Exporter; -$VERSION = 1.01; +$VERSION = 1.02; @ISA = qw(Exporter); @EXPORT = qw(open2); @@ -18,31 +18,31 @@ IPC::Open2, open2 - open a process for both reading and writing use IPC::Open2; - $pid = open2(\*RDRFH, \*WTRFH, 'some cmd and args'); + $pid = open2(\*CHLD_OUT, \*CHLD_IN, 'some cmd and args'); # or without using the shell - $pid = open2(\*RDRFH, \*WTRFH, 'some', 'cmd', 'and', 'args'); + $pid = open2(\*CHLD_OUT, \*CHLD_IN, 'some', 'cmd', 'and', 'args'); # or with handle autovivification - my($rdrfh, $wtrfh); - $pid = open2($rdrfh, $wtrfh, 'some cmd and args'); + my($chld_out, $chld_in); + $pid = open2($chld_out, $chld_in, 'some cmd and args'); # or without using the shell - $pid = open2($rdrfh, $wtrfh, 'some', 'cmd', 'and', 'args'); + $pid = open2($chld_out, $chld_in, 'some', 'cmd', 'and', 'args'); =head1 DESCRIPTION -The open2() function runs the given $cmd and connects $rdrfh for -reading and $wtrfh for writing. It's what you think should work +The open2() function runs the given $cmd and connects $chld_out for +reading and $chld_in for writing. It's what you think should work when you try $pid = open(HANDLE, "|cmd args|"); The write filehandle will have autoflush turned on. -If $rdrfh is a string (that is, a bareword filehandle rather than a glob +If $chld_out is a string (that is, a bareword filehandle rather than a glob or a reference) and it begins with C<< >& >>, then the child will send output -directly to that file handle. If $wtrfh is a string that begins with -C<< <& >>, then $wtrfh will be closed in the parent, and the child will read -from it directly. In both cases, there will be a dup(2) instead of a +directly to that file handle. If $chld_in is a string that begins with +C<< <& >>, then $chld_in will be closed in the parent, and the child will +read from it directly. In both cases, there will be a dup(2) instead of a pipe(2) made. If either reader or writer is the null string, this will be replaced diff --git a/lib/IPC/Open3.pm b/lib/IPC/Open3.pm index da925182e7..084cd33c7e 100644 --- a/lib/IPC/Open3.pm +++ b/lib/IPC/Open3.pm @@ -9,7 +9,7 @@ require Exporter; use Carp; use Symbol qw(gensym qualify); -$VERSION = 1.0106; +$VERSION = 1.02; @ISA = qw(Exporter); @EXPORT = qw(open3); @@ -19,7 +19,7 @@ IPC::Open3, open3 - open a process for reading, writing, and error handling =head1 SYNOPSIS - $pid = open3(\*WTRFH, \*RDRFH, \*ERRFH, + $pid = open3(\*CHLD_IN, \*CHLD_OUT, \*CHLD_ERR, 'some cmd and args', 'optarg', ...); my($wtr, $rdr, $err); @@ -29,15 +29,17 @@ IPC::Open3, open3 - open a process for reading, writing, and error handling =head1 DESCRIPTION Extremely similar to open2(), open3() spawns the given $cmd and -connects RDRFH for reading, WTRFH for writing, and ERRFH for errors. If -ERRFH is false, or the same file descriptor as RDRFH, then STDOUT and -STDERR of the child are on the same filehandle. The WTRFH will have -autoflush turned on. - -If WTRFH begins with C<< <& >>, then WTRFH will be closed in the parent, and -the child will read from it directly. If RDRFH or ERRFH begins with -C<< >& >>, then the child will send output directly to that filehandle. -In both cases, there will be a dup(2) instead of a pipe(2) made. +connects CHLD_OUT for reading from the child, CHLD_IN for writing to +the child, and CHLD_ERR for errors. If CHLD_ERR is false, or the +same file descriptor as CHLD_OUT, then STDOUT and STDERR of the child +are on the same filehandle. The CHLD_IN will have autoflush turned +on. + +If CHLD_IN begins with C<< <& >>, then CHLD_IN will be closed in the +parent, and the child will read from it directly. If CHLD_OUT or +CHLD_ERR begins with C<< >& >>, then the child will send output +directly to that filehandle. In both cases, there will be a dup(2) +instead of a pipe(2) made. If either reader or writer is the null string, this will be replaced by an autogenerated filehandle. If so, you must pass a valid lvalue |