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Diffstat (limited to 'src/readahead/readahead-common.h')
-rw-r--r-- | src/readahead/readahead-common.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/readahead/readahead-common.h b/src/readahead/readahead-common.h new file mode 100644 index 0000000000..b34f3aadd7 --- /dev/null +++ b/src/readahead/readahead-common.h @@ -0,0 +1,61 @@ +/*-*- 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); |