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343a2aefb5
src/filelock.c [WINDOWSNT]: Include w32.h. (MAKE_LOCK_NAME): Don't use 'lock', it clashes with MS runtime function of that name. Up-case the macro arguments. (IS_LOCK_FILE): New macro. (fill_in_lock_file_name): Use IS_LOCK_FILE instead of S_ISLNK. (create_lock_file): New function, with body extracted from lock_file_1. [WINDOWSNT]: Implement lock files by writing a regular file with the lock information as its contents. (read_lock_data): New function, on Posix platforms just calls emacs_readlinkat. [WINDOWSNT]: Read the lock info from the file. (current_lock_owner): Call read_lock_data instead of calling emacs_readlinkat directly. (lock_file) [WINDOWSNT]: Run the file name through dostounix_filename. src/w32proc.c (sys_kill): Support the case of SIG = 0, in which case just check if the process by that PID exists. src/w32.c (sys_open): Don't reset the _O_CREAT flag if _O_EXCL is also present, as doing so will fail to error out if the file already exists. src/makefile.w32-in ($(BLD)/filelock.$(O)): Depend on src/w32.h. nt/inc/ms-w32.h (BOOT_TIME_FILE): Define. nt/config.nt (CLASH_DETECTION): Define to 1. lisp/emacs-lisp/bytecomp.el (byte-recompile-directory): Reject files that match "\`\.#", to avoid compiling lock files, even if they are readable (as they are on MS-Windows). doc/emacs/files.texi (Interlocking): Don't refer to symlinks as the exclusive means of locking files. etc/NEWS: Mention support for lock files on MS-Windows. |
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