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libc/libio iofdopen.c libioP.h iofopen.c
- From: roland at sources dot redhat dot com
- To: glibc-cvs at sources dot redhat dot com
- Date: 2 Aug 2002 01:27:53 -0000
- Subject: libc/libio iofdopen.c libioP.h iofopen.c
CVSROOT: /cvs/glibc
Module name: libc
Changes by: roland@sources.redhat.com 2002-08-01 18:27:53
Modified files:
libio : iofdopen.c libioP.h iofopen.c
Log message:
2002-07-31 Roland McGrath <roland@frob.com>
* libio/fileops.c (decide_maybe_mmap): New static function.
Code taken from libio/iofopen.c:__fopen_maybe_mmap to try to
mmap the file contents. Then switch the jump tables to the mmap
tables if it worked, or the vanilla file tables if not.
(_IO_file_underflow_maybe_mmap): New function.
(_IO_file_seekoff_maybe_mmap): New function.
(_IO_file_xsgetn_maybe_mmap): New function.
(_IO_file_jumps_maybe_mmap): New variable, jump table using those.
* libio/libioP.h: Declare those.
* libio/wfileops.c (_IO_wfile_underflow_maybe_mmap): New function.
(_IO_wfile_jumps_maybe_mmap): New variable, jump table using that.
* libio/iofopen.c (__fopen_maybe_mmap): Don't try to mmap here.
If the stream is read-only, set its jump tables to those new ones.
* libio/iofdopen.c (_IO_new_fdopen) [_G_HAVE_MMAP]: Set the initial
jump tables to the maybe_mmap ones, and don't call __fopen_maybe_mmap.
We need the tables set before _IO_file_attach.