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systemd/src/readahead/readahead-common.h
Shawn Landden c2f1db8f83 use #pragma once instead of foo*foo #define guards
#pragma once has been "un-deprecated" in gcc since 3.3, and is widely supported
in other compilers.

I've been using and maintaining (rebasing) this patch for a while now, as
it annoyed me to see #ifndef fooblahfoo, etc all over the place,
almost arrogant about the annoyance of having to define all these names to
perform a commen but neccicary functionality, when a completely superior
alternative exists.

I havn't sent it till now, cause its kindof a style change, and it is bad
voodoo to mess with style that has been established by more established
editors. So feel free to lambast me as a crazy bafoon.

v2 - preserve externally used headers
2012-07-19 12:30:59 +02:00

62 lines
1.6 KiB
C

/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#pragma once
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <sys/stat.h>
#include <sys/types.h>
#include "macro.h"
#include "util.h"
#define READAHEAD_FILE_SIZE_MAX (10*1024*1024)
#define READAHEAD_PACK_FILE_VERSION ";VERSION=2\n"
extern unsigned arg_files_max;
extern off_t arg_file_size_max;
extern usec_t arg_timeout;
int file_verify(int fd, const char *fn, off_t file_size_max, struct stat *st);
int fs_on_ssd(const char *p);
int fs_on_read_only(const char *p);
bool enough_ram(void);
int open_inotify(void);
typedef struct ReadaheadShared {
pid_t collect;
pid_t replay;
} _packed_ ReadaheadShared;
ReadaheadShared *shared_get(void);
int block_bump_request_nr(const char *p);
int block_get_readahead(const char *p, uint64_t *bytes);
int block_set_readahead(const char *p, uint64_t bytes);
int main_collect(const char *root);
int main_replay(const char *root);
int main_analyze(const char *pack_path);