Close an I/O stream. This implements Perl "close
" in perlfunc.
gv
is the glob associated with the stream.
is_explict
is true
if this is an explicit close of the stream; false
if it is part of another operation, such as closing a pipe (which involves implicitly closing both ends).
Returns true
if successful; otherwise returns false
and sets errno
to indicate the cause.
The C library chsize(3) if available, or a Perl implementation of it.
Function called by do_readline
to spawn a glob (or do the glob inside perl on VMS). This code used to be inline, but now perl uses File::Glob
this glob starter is only used by miniperl during the build process, or when PERL_EXTERNAL_GLOB is defined. Moving it away shrinks pp_hot.c; shrinking pp_hot.c helps speed perl up.