projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 614c279d | 1 | /* Low-level file-handling. |
| e2882c85 | 2 | Copyright (C) 2012-2018 Free Software Foundation, Inc. |
| 614c279d TT |
3 | |
| 4 | This file is part of GDB. | |
| 5 | ||
| 6 | This program is free software; you can redistribute it and/or modify | |
| 7 | it under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 3 of the License, or | |
| 9 | (at your option) any later version. | |
| 10 | ||
| 11 | This program is distributed in the hope that it will be useful, | |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 | GNU General Public License for more details. | |
| 15 | ||
| 16 | You should have received a copy of the GNU General Public License | |
| 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
| 18 | ||
| 19 | #ifndef FILESTUFF_H | |
| 20 | #define FILESTUFF_H | |
| 21 | ||
| 22 | /* Note all the file descriptors which are open when this is called. | |
| 23 | These file descriptors will not be closed by close_most_fds. */ | |
| 24 | ||
| 25 | extern void notice_open_fds (void); | |
| 26 | ||
| 21ff4686 TT |
27 | /* Mark a file descriptor as inheritable across an exec. */ |
| 28 | ||
| 29 | extern void mark_fd_no_cloexec (int fd); | |
| 30 | ||
| 31 | /* Mark a file descriptor as no longer being inheritable across an | |
| 32 | exec. This is only meaningful when FD was previously passed to | |
| 33 | mark_fd_no_cloexec. */ | |
| 34 | ||
| 35 | extern void unmark_fd_no_cloexec (int fd); | |
| 36 | ||
| 614c279d TT |
37 | /* Close all open file descriptors other than those marked by |
| 38 | 'notice_open_fds', and stdin, stdout, and stderr. Errors that | |
| 39 | occur while closing are ignored. */ | |
| 40 | ||
| 41 | extern void close_most_fds (void); | |
| 42 | ||
| 43 | /* Like 'open', but ensures that the returned file descriptor has the | |
| 44 | close-on-exec flag set. */ | |
| 45 | ||
| 5d71132c TT |
46 | extern int gdb_open_cloexec (const char *filename, int flags, |
| 47 | /* mode_t */ unsigned long mode); | |
| 614c279d | 48 | |
| d419f42d TT |
49 | struct gdb_file_deleter |
| 50 | { | |
| 51 | void operator() (FILE *file) const | |
| 52 | { | |
| 53 | fclose (file); | |
| 54 | } | |
| 55 | }; | |
| 56 | ||
| 57 | /* A unique pointer to a FILE. */ | |
| 58 | ||
| 59 | typedef std::unique_ptr<FILE, gdb_file_deleter> gdb_file_up; | |
| 60 | ||
| 614c279d TT |
61 | /* Like 'fopen', but ensures that the returned file descriptor has the |
| 62 | close-on-exec flag set. */ | |
| 63 | ||
| d419f42d TT |
64 | extern gdb_file_up gdb_fopen_cloexec (const char *filename, |
| 65 | const char *opentype); | |
| 614c279d TT |
66 | |
| 67 | /* Like 'socketpair', but ensures that the returned file descriptors | |
| 68 | have the close-on-exec flag set. */ | |
| 69 | ||
| fe978cb0 | 70 | extern int gdb_socketpair_cloexec (int domain, int style, int protocol, |
| 614c279d TT |
71 | int filedes[2]); |
| 72 | ||
| 73 | /* Like 'socket', but ensures that the returned file descriptor has | |
| 74 | the close-on-exec flag set. */ | |
| 75 | ||
| fe978cb0 | 76 | extern int gdb_socket_cloexec (int domain, int style, int protocol); |
| 614c279d TT |
77 | |
| 78 | /* Like 'pipe', but ensures that the returned file descriptors have | |
| 79 | the close-on-exec flag set. */ | |
| 80 | ||
| 81 | extern int gdb_pipe_cloexec (int filedes[2]); | |
| 82 | ||
| ca095836 GB |
83 | /* Return a new cleanup that closes FD. */ |
| 84 | ||
| 85 | extern struct cleanup *make_cleanup_close (int fd); | |
| 86 | ||
| 614c279d | 87 | #endif /* FILESTUFF_H */ |