From acbee5f637fe1f2acda89cf2dbddf0d327005dd2 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Fri, 2 Aug 2002 01:29:37 +0000 Subject: * libio/fileops.c (_IO_file_sync_mmap): New function. (_IO_file_jumps_mmap): Use it. (_IO_file_underflow_mmap): Rewritten. If after EOF or fflush, repeat the stat check and resize the mapped buffer as necessary. 2002-07-31 Roland McGrath * 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. * libio/tst-mmap-eofsync.c: New file. * libio/tst-mmap-fflushsync.c: New file. * libio/bug-mmap-fflush.c: New file. * libio/tst-mmap2-eofsync.c: New file. * libio/Makefile (tests): Add them. * libio/wfileops.c (_IO_wfile_underflow_mmap): Don't set EOF bit when _IO_file_underflow_mmap fails, it already set the appropriate bit. --- libio/Makefile | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'libio/Makefile') diff --git a/libio/Makefile b/libio/Makefile index f5e69e3e14..28d8519a97 100644 --- a/libio/Makefile +++ b/libio/Makefile @@ -51,7 +51,9 @@ tests = tst_swprintf tst_wprintf tst_swscanf tst_wscanf tst_getwc tst_putwc \ tst_wprintf2 tst-widetext test-fmemopen tst-ext tst-fopenloc \ tst-fgetws tst-ungetwc1 tst-ungetwc2 tst-swscanf tst-sscanf \ tst-mmap-setvbuf bug-ungetwc1 bug-ungetwc2 tst-atime tst-eof \ - tst-freopen bug-rewind bug-ungetc bug-fseek + tst-freopen bug-rewind bug-ungetc bug-fseek \ + tst-mmap-eofsync tst-mmap-fflushsync bug-mmap-fflush \ + tst-mmap2-eofsync test-srcs = test-freopen all: # Make this the default target; it will be defined in Rules. -- cgit v1.2.3