- 05 Mar, 2013 1 commit
-
-
Paul Eggert authored
* etc/NEWS: Document this. * nt/inc/unistd.h (O_NOFOLLOW): New macro. * src/filelock.c: Include <c-ctype.h>. (MAX_LFINFO): New top-level constant. (lock_info_type): Remove members pid, boot_time. Add members at, dot, colon. Change user member to be the entire buffer, not a pointer. This allows us to handle the case where a foreign pid or boot time exceeds the local range. All uses changed. (LINKS_MIGHT_NOT_WORK): New constant. (FREE_LOCK_INFO): Remove, as the pieces no longer need freeing. (defined_WINDOWSNT): Remove. (MAKE_LOCK_NAME, file_in_lock_file_name): Always use .#FILE (not .#-FILE) for the file lock, even if it is a regular file. (rename_lock_file): New function. (create_lock_file): Use it. (create_lock_file, read_lock_data): Prefer a symbolic link for the lock file, falling back on a regular file if symlinks don't work. Do not try to create symlinks on MS-Windows, due to security hassles. Stick with POSIXish functions (open, read, write, close, fchmod, readlink, symlink, link, rename, unlink, mkstemp) when creating locks, as a GNUish host may be using a Windowsish file system, and cannot use MS-Windows-only system calls. Fall back on mktemp if mkstemp doesn't work. Don't fail merely because of a symlink-contents length limit in the current file system; fall back on regular files. Increase the symlink contents length limit to 8 KiB, this should be big enough for any real use and doesn't crunch the stack. (create_lock_file, lock_file_1, read_lock_data): Simplify allocation of lock file buffers now that they fit in 8 KiB. (lock_file_1): Return error number, not bool. All callers changed. (ELOOP): New macro, if not already defined. (read_lock_data): Return size of lock file contents, not Lisp object. All callers changed. Handle a race condition if some other process replaces a regular-file lock with a symlink lock or vice versa, while we're trying to read the lock. (current_lock_owner): Parse contents more carefully, to help avoid confusing a regular-file lock with some other application's use of the file. Check for lock file contents being too long, or not parsing correctly. (current_lock_owner, lock_file): Allow foreign pid and boot times that exceed the local range. (current_lock_owner, lock_if_free, lock_file): Simplify allocation of lock file contents. * src/w32.c (sys_rename_replace): New function, containing most of the contents of the old sys_rename. (sys_rename): Use it. (fchmod): New dummy function. * src/w32.h (sys_rename_replace, fchmod): New decls. Fixes: debbugs:13807
-
- 01 Feb, 2013 1 commit
-
-
Paul Eggert authored
On my host, this speeds up directory-files-and-attributes by a factor of 3, when applied to Emacs's src directory. These functions are standardized by POSIX and are common these days; fall back on a (slower) gnulib implementation if the host is too old to supply them. * .bzrignore: Add lib/dirent.h. * lib/Makefile.am (libgnu_a_SOURCES): Add openat-die.c, save-cwd.c. * lib/careadlinkat.c, lib/careadlinkat.h: Merge from gnulib, incorporating: 2013-01-29 careadlinkat: do not provide careadlinkatcwd. * lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate. * lib/dirent.in.h, lib/fdopendir.c, lib/fstatat.c, lib/openat-priv.h: * lib/openat-proc.c, lib/openat.h, m4/dirent_h.m4, m4/fdopendir.m4: * m4/fstatat.m4: New files, from gnulib. * lib/openat-die.c, lib/save-cwd.c, lib/save-cwd.h: New files. These last three are specific to Emacs and are not copied from gnulib. They are simpler than the gnulib versions and are tuned for Emacs. * admin/merge-gnulib (GNULIB_MODULES): Add fdopendir, fstatat, readlinkat. (GNULIB_TOOL_FLAGS): Do not avoid at-internal, openat-h. Avoid dup, open, opendir. * nt/inc/sys/stat.h (fstatat): * nt/inc/unistd.h (readlinkat): New decls. * src/conf_post.h (GNULIB_SUPPORT_ONLY_AT_FDCWD): Remove. * src/dired.c: Include <fcntl.h>. (open_directory): New function, which uses open and fdopendir rather than opendir. DOS_NT platforms still use opendir, though. (directory_files_internal, file_name_completion): Use it. (file_attributes): New function, with most of the old Ffile_attributes. (directory_files_internal, Ffile_attributes): Use it. (file_attributes, file_name_completion_stat): First arg is now fd, not dir name. All uses changed. Use fstatat rather than lstat + stat. (file_attributes): Use emacs_readlinkat rather than Ffile_symlink_p. * src/fileio.c: Include <allocator.h>, <careadlinkat.h>. (emacs_readlinkat): New function, with much of the old Ffile_symlink_p, but with an fd argument for speed. It uses readlinkat rather than careadlinkatcwd, so that it need not assume the working directory. (Ffile_symlink_p): Use it. * src/filelock.c (current_lock_owner): Use emacs_readlinkat rather than emacs_readlink. * src/lisp.h (emacs_readlinkat): New decl. (READLINK_BUFSIZE, emacs_readlink): Remove. * src/sysdep.c: Do not include <allocator.h>, <careadlinkat.h>. (emacs_norealloc_allocator, emacs_readlink): Remove. This stuff is moved to fileio.c. * src/w32.c (fstatat, readlinkat): New functions. (careadlinkat): Don't check that fd == AT_FDCWD. (careadlinkatcwd): Remove; no longer needed. Fixes: debbugs:13539
-
- 11 Jan, 2013 1 commit
-
-
Eli Zaretskii authored
nt/inc/unistd.h (O_IGNORE_CTTY): Define, as it is unconditionally used in term.c.
-
- 09 Dec, 2012 1 commit
-
-
Eli Zaretskii authored
nt/inc/unistd.h (unsetenv): Provide a prototype.
-
- 24 Nov, 2012 1 commit
-
-
Eli Zaretskii authored
-
- 18 Nov, 2012 1 commit
-
-
Eli Zaretskii authored
nt/inc/unistd.h: Don't include fcntl.h and don't define O_RDWR. Fixes: debbugs:12881
-
- 17 Nov, 2012 1 commit
-
-
Paul Eggert authored
* admin/CPP-DEFINES (O_RDONLY, O_RDWR, HAVE_FCNTL_H): Remove. * admin/merge-gnulib (GNULIB_MODULES): Add fcntl-h. * configure.ac: Do not check for fcntl.h. * lib/gnulib.mk: Regenerate. * lib-src/movemail.c, lib-src/update-game-score.c: Assume <fcntl.h> exists. * nt/inc/sys/socket.h (O_NONBLOCK): Rename from O_NDELAY, since the POSIX name for this flag is O_NONBLOCK. All uses changed. * nt/inc/unistd.h (O_RDWR, O_NOCTTY): New macros. Like AT_FDCWD etc. these really should be moved to a replacement <fcntl.h> if and when that gets implemented. In the meantime, include <fcntl.h> to make sure we don't override its definitions. * src/callproc.c (relocate_fd): Assume F_DUPFD. * src/emacs.c, src/term.c (O_RDWR): Remove. * src/keyboard.c (tty_read_avail_input): Use O_NONBLOCK rather than O_NDELAY, since O_NONBLOCK is the standard name for this flag. * src/nsterm.m: Assume <fcntl.h> exists. * src/process.c (NON_BLOCKING_CONNECT, allocate_pty, create_process) (create_pty, Fmake_network_process, server_accept_connection) (wait_reading_process_output, init_process_emacs): Assume O_NONBLOCK. (wait_reading_process_output): Put in a special case for WINDOWSNT to mimick the older behavior where it had O_NDELAY but not O_NONBLOCK. It's not clear this is needed, but it's a more-conservative change. (create_process): Assume FD_CLOEXEC. (create_process, create_pty): Assume O_NOCTTY. * src/sysdep.c (init_sys_modes, reset_sys_modes): Assume F_SETFL. (reset_sys_modes): Use O_NONBLOCK rather than O_NDELAY. Omit if not DOS_NT, since F_GETFL is not defined there. (serial_open): Assume O_NONBLOCK and O_NOCTTY. * src/term.c: Include <fcntl.h>, for flags like O_NOCTTY. (O_NOCTTY): Remove. (init_tty): Assume O_IGNORE_CTTY is defined to 0 on platforms that lack it, since gnulib guarantees this. * src/w32.c (fcntl): Test for O_NONBLOCK rather than O_NDELAY. Fixes: debbugs:12881
-
- 14 Nov, 2012 1 commit
-
-
Eli Zaretskii authored
nt/inc/unistd.h (faccessat): Add prototype. (AT_FDCWD, AT_EACCESS, AT_SYMLINK_NOFOLLOW): New macros; the first 2 moved from ms-w32.h. nt/inc/ms-w32.h (AT_FDCWD, AT_EACCESS, faccessat): Remove macros. src/w32.c (faccessat): Rename from sys_faccessat. (No need to use a different name, as the MS runtime does not have such a function, and probably never will.) All callers changed. Ignore DIRFD value if PATH is an absolute file name, to match Posix spec better. If AT_SYMLINK_NOFOLLOW is set in FLAGS, don't resolve symlinks. Fixes: debbugs:12632
-
- 05 Nov, 2012 2 commits
-
-
Juanma Barranquero authored
-
Eli Zaretskii authored
nt/inc/unistd.h (tcgetpgrp, setsid): Provide prototypes.
-
- 01 Nov, 2012 1 commit
-
-
Eli Zaretskii authored
src/w32proc.c (getpgrp, setpgid): New functions. nt/inc/unistd.h (setpgid, getpgrp): Provide prototypes. nt/config.nt (GETPGRP_VOID): Define to 1.
-
- 04 Sep, 2012 1 commit
-
-
Paul Eggert authored
Do not try to redefine the 'abort' function. Instead, redo the code so that it calls 'emacs_abort' rather than 'abort'. This removes the need for the NO_ABORT configure-time macro and makes it easier to change the abort code to do a backtrace. * configure.ac (NO_ABRT): Remove. * admin/CPP-DEFINES (NO_ABORT): Remove. * nt/inc/ms-w32.h (w32_abort) [HAVE_NTGUI]: Remove. * src/.gdbinit: Just stop at emacs_abort, not at w32_abort or abort. * src/emacs.c (abort) [!DOS_NT && !NO_ABORT]: Remove; sysdep.c's emacs_abort now takes its place. * src/lisp.h (emacs_abort): New decl. All calls from Emacs code to 'abort' changed to use 'emacs_abort'. * src/msdos.c (dos_abort) [defined abort]: Remove; not used. (abort) [!defined abort]: Rename to ... (emacs_abort): ... new name. * src/sysdep.c (emacs_abort) [!HAVE_NTGUI]: New function, taking the place of the old 'abort' in emacs.c. * src/w32.c, src/w32fns.c (abort): Do not #undef. * src/w32.c (emacs_abort): Rename from w32_abort.
-
- 27 Feb, 2011 1 commit
-
-
Eli Zaretskii authored
src/w32.c (symlink, readlink): New stub functions. nt/inc/unistd.h (readlink, symlink): Declare prototypes.
-
- 15 Jan, 2011 1 commit
-
-
Glenn Morris authored
-
- 16 Apr, 2004 1 commit
-
-
Kenichi Handa authored
-
- 08 Sep, 2003 1 commit
-
-
Kenichi Handa authored
-
- 01 Sep, 2003 1 commit
-
-
Miles Bader authored
-
- 03 May, 1996 1 commit
-
-
Geoff Voelker authored
-