diff options
author | Chip Salzenberg <chip@perl.com> | 1997-03-06 07:48:16 +1200 |
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committer | Chip Salzenberg <chip@atlantic.net> | 1997-04-07 00:00:00 +0000 |
commit | 948ecc4079304ff4b8604b45d6d9315279e4796e (patch) | |
tree | 1a73a05f3dd77c134bb69cdba6b2193efcfec66d /ext/IO | |
parent | 973f89ab54aee31638a55cc8c998627da46e5534 (diff) | |
download | perl-948ecc4079304ff4b8604b45d6d9315279e4796e.tar.gz |
Improve IO::Handle docs; don't export _open_mode_string
Diffstat (limited to 'ext/IO')
-rw-r--r-- | ext/IO/lib/IO/File.pm | 7 | ||||
-rw-r--r-- | ext/IO/lib/IO/Handle.pm | 59 |
2 files changed, 41 insertions, 25 deletions
diff --git a/ext/IO/lib/IO/File.pm b/ext/IO/lib/IO/File.pm index c194a0dead..9d647b3571 100644 --- a/ext/IO/lib/IO/File.pm +++ b/ext/IO/lib/IO/File.pm @@ -108,7 +108,6 @@ use vars qw($VERSION @EXPORT @EXPORT_OK $AUTOLOAD @ISA); use Carp; use Symbol; use SelectSaver; -use IO::Handle qw(_open_mode_string); use IO::Seekable; require Exporter; @@ -116,7 +115,7 @@ require DynaLoader; @ISA = qw(IO::Handle IO::Seekable Exporter DynaLoader); -$VERSION = "1.06"; +$VERSION = "1.0601"; @EXPORT = @IO::Seekable::EXPORT; @@ -166,8 +165,8 @@ sub open { defined $perms or $perms = 0666; return sysopen($fh, $file, $mode, $perms); } - $file = "./" . $file unless $file =~ m#^/#; - $file = _open_mode_string($mode) . " $file\0"; + $file = './' . $file unless substr($file, 0, 1) eq '/'; + $file = IO::Handle::_open_mode_string($mode) . " $file\0"; } open($fh, $file); } diff --git a/ext/IO/lib/IO/Handle.pm b/ext/IO/lib/IO/Handle.pm index 43805c30f7..f270f3ff98 100644 --- a/ext/IO/lib/IO/Handle.pm +++ b/ext/IO/lib/IO/Handle.pm @@ -58,16 +58,6 @@ to the caller. =head1 METHODS -If the C function setvbuf() is available, then C<IO::Handle::setvbuf> -sets the buffering policy for the IO::Handle. The calling sequence -for the Perl function is the same as its C counterpart, including the -macros C<_IOFBF>, C<_IOLBF>, and C<_IONBF>, except that the buffer -parameter specifies a scalar variable to use as a buffer. WARNING: A -variable used as a buffer by C<IO::Handle::setvbuf> must not be -modified in any way until the IO::Handle is closed or until -C<IO::Handle::setvbuf> is called again, or memory corruption may -result! - See L<perlfunc> for complete descriptions of each of the following supported C<IO::Handle> methods, which are just front ends for the corresponding built-in functions: @@ -105,6 +95,16 @@ Furthermore, for doing normal I/O you might need these: =over +=item $fh->fdopen ( FD, MODE ) + +C<fdopen> is like an ordinary C<open> except that its first parameter +is not a filename but rather a file handle name, a IO::Handle object, +or a file descriptor number. + +=item $fh->opened + +Returns true if the object is currently a valid file descriptor. + =item $fh->getline This works like <$fh> described in L<perlop/"I/O Operators"> @@ -117,25 +117,44 @@ This works like <$fh> when called in an array context to read all the remaining lines in a file, except that it's more readable. It will also croak() if accidentally called in a scalar context. -=item $fh->fdopen ( FD, MODE ) +=item $fh->ungetc ( ORD ) -C<fdopen> is like an ordinary C<open> except that its first parameter -is not a filename but rather a file handle name, a IO::Handle object, -or a file descriptor number. +Pushes a character with the given ordinal value back onto the given +handle's input stream. =item $fh->write ( BUF, LEN [, OFFSET }\] ) -C<write> is like C<write> found in C, that is it is the +This C<write> is like C<write> found in C, that is it is the opposite of read. The wrapper for the perl C<write> function is called C<format_write>. -=item $fh->opened +=item $fh->flush -Returns true if the object is currently a valid file descriptor. +Flush the given handle's buffer. + +=item $fh->error + +Returns a true value if the given handle has experienced any errors +since it was opened or since the last call to C<clearerr>. + +=item $fh->clearerr + +Clear the given handle's error indicator. =back -Lastly, a special method for working under B<-T> and setuid/gid scripts: +If the C functions setbuf() and/or setvbuf() are available, then +C<IO::Handle::setbuf> and C<IO::Handle::setvbuf> set the buffering +policy for an IO::Handle. The calling sequences for the Perl functions +are the same as their C counterparts--including the constants C<_IOFBF>, +C<_IOLBF>, and C<_IONBF> for setvbuf()--except that the buffer parameter +specifies a scalar variable to use as a buffer. WARNING: A variable +used as a buffer by C<setbuf> or C<setvbuf> must not be modified in any +way until the IO::Handle is closed or C<setbuf> or C<setvbuf> is called +again, or memory corruption may result! + +Lastly, there is a special method for working under B<-T> and setuid/gid +scripts: =over @@ -186,7 +205,7 @@ use SelectSaver; require Exporter; @ISA = qw(Exporter); -$VERSION = "1.1503"; +$VERSION = "1.1504"; $XS_VERSION = "1.15"; @EXPORT_OK = qw( @@ -215,8 +234,6 @@ $XS_VERSION = "1.15"; _IOFBF _IOLBF _IONBF - - _open_mode_string ); |