X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fclean-temp.h;h=24aeca83eb3c41a304d423c493183bf89d8c21d4;hb=9fc81090f6c5590bd1b0e0fa5087577a2ee43a3e;hp=25030080e09eca48065fca66f39f2338e5659bc5;hpb=05477f4de600d5e9247707024d162924d73c1a4b;p=gnulib.git diff --git a/lib/clean-temp.h b/lib/clean-temp.h index 25030080e..24aeca83e 100644 --- a/lib/clean-temp.h +++ b/lib/clean-temp.h @@ -1,11 +1,11 @@ /* Temporary directories and temporary files with automatic cleanup. - Copyright (C) 2006 Free Software Foundation, Inc. + Copyright (C) 2006, 2011-2013 Free Software Foundation, Inc. Written by Bruno Haible , 2006. - This program is free software; you can redistribute it and/or modify + This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of @@ -13,8 +13,7 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + along with this program. If not, see . */ #ifndef _CLEAN_TEMP_H #define _CLEAN_TEMP_H @@ -36,11 +35,20 @@ extern "C" { Also, open file descriptors need to be closed before the temporary files and the temporary directories can be removed, because only on Unix - (excluding Cygwin) one can remove directories containing open files. + (excluding Cygwin) can one remove directories containing open files. This module provides support for temporary directories and temporary files inside these temporary directories. Temporary files without temporary - directories are not supported here. */ + directories are not supported here. The temporary directories and files + are automatically cleaned up (at the latest) when the program exits or + dies from a fatal signal such as SIGINT, SIGTERM, SIGHUP, but not if it + dies from a fatal signal such as SIGQUIT, SIGKILL, or SIGABRT, SIGSEGV, + SIGBUS, SIGILL, SIGFPE. + + For the cleanup in the normal case, programs that use this module need to + call 'cleanup_temp_dir' for each successful return of 'create_temp_dir'. + The cleanup in the case of a fatal signal such as SIGINT, SIGTERM, SIGHUP, + is done entirely automatically by the functions of this module. */ struct temp_dir { @@ -61,43 +69,43 @@ struct temp_dir Return a fresh 'struct temp_dir' on success. Upon error, an error message is shown and NULL is returned. */ extern struct temp_dir * create_temp_dir (const char *prefix, - const char *parentdir, - bool cleanup_verbose); + const char *parentdir, + bool cleanup_verbose); /* Register the given ABSOLUTE_FILE_NAME as being a file inside DIR, that needs to be removed before DIR can be removed. Should be called before the file ABSOLUTE_FILE_NAME is created. */ extern void register_temp_file (struct temp_dir *dir, - const char *absolute_file_name); + const char *absolute_file_name); /* Unregister the given ABSOLUTE_FILE_NAME as being a file inside DIR, that needs to be removed before DIR can be removed. Should be called when the file ABSOLUTE_FILE_NAME could not be created. */ extern void unregister_temp_file (struct temp_dir *dir, - const char *absolute_file_name); + const char *absolute_file_name); /* Register the given ABSOLUTE_DIR_NAME as being a subdirectory inside DIR, that needs to be removed before DIR can be removed. Should be called before the subdirectory ABSOLUTE_DIR_NAME is created. */ extern void register_temp_subdir (struct temp_dir *dir, - const char *absolute_dir_name); + const char *absolute_dir_name); /* Unregister the given ABSOLUTE_DIR_NAME as being a subdirectory inside DIR, that needs to be removed before DIR can be removed. Should be called when the subdirectory ABSOLUTE_DIR_NAME could not be created. */ extern void unregister_temp_subdir (struct temp_dir *dir, - const char *absolute_dir_name); + const char *absolute_dir_name); /* Remove the given ABSOLUTE_FILE_NAME and unregister it. Return 0 upon success, or -1 if there was some problem. */ extern int cleanup_temp_file (struct temp_dir *dir, - const char *absolute_file_name); + const char *absolute_file_name); /* Remove the given ABSOLUTE_DIR_NAME and unregister it. Return 0 upon success, or -1 if there was some problem. */ extern int cleanup_temp_subdir (struct temp_dir *dir, - const char *absolute_dir_name); + const char *absolute_dir_name); /* Remove all registered files and subdirectories inside DIR. Return 0 upon success, or -1 if there was some problem. */ @@ -122,6 +130,10 @@ extern int fclose_temp (FILE *fp); Unregisters the previously registered file descriptor. */ extern int fwriteerror_temp (FILE *fp); +/* Like close_stream. + Unregisters the previously registered file descriptor. */ +extern int close_stream_temp (FILE *fp); + #ifdef __cplusplus }