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88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/* Low-level file-handling.
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Copyright (C) 2012-2018 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef FILESTUFF_H
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#define FILESTUFF_H
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/* Note all the file descriptors which are open when this is called.
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These file descriptors will not be closed by close_most_fds. */
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extern void notice_open_fds (void);
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/* Mark a file descriptor as inheritable across an exec. */
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extern void mark_fd_no_cloexec (int fd);
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/* Mark a file descriptor as no longer being inheritable across an
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exec. This is only meaningful when FD was previously passed to
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mark_fd_no_cloexec. */
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extern void unmark_fd_no_cloexec (int fd);
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/* Close all open file descriptors other than those marked by
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'notice_open_fds', and stdin, stdout, and stderr. Errors that
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occur while closing are ignored. */
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extern void close_most_fds (void);
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/* Like 'open', but ensures that the returned file descriptor has the
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close-on-exec flag set. */
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extern int gdb_open_cloexec (const char *filename, int flags,
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/* mode_t */ unsigned long mode);
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struct gdb_file_deleter
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{
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void operator() (FILE *file) const
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{
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fclose (file);
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}
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};
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/* A unique pointer to a FILE. */
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typedef std::unique_ptr<FILE, gdb_file_deleter> gdb_file_up;
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/* Like 'fopen', but ensures that the returned file descriptor has the
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close-on-exec flag set. */
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extern gdb_file_up gdb_fopen_cloexec (const char *filename,
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const char *opentype);
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/* Like 'socketpair', but ensures that the returned file descriptors
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have the close-on-exec flag set. */
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extern int gdb_socketpair_cloexec (int domain, int style, int protocol,
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int filedes[2]);
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/* Like 'socket', but ensures that the returned file descriptor has
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the close-on-exec flag set. */
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extern int gdb_socket_cloexec (int domain, int style, int protocol);
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/* Like 'pipe', but ensures that the returned file descriptors have
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the close-on-exec flag set. */
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extern int gdb_pipe_cloexec (int filedes[2]);
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/* Return a new cleanup that closes FD. */
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extern struct cleanup *make_cleanup_close (int fd);
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#endif /* FILESTUFF_H */
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