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/*-
* Copyright (c) 2014-present MongoDB, Inc.
* Copyright (c) 2008-2014 WiredTiger, Inc.
* All rights reserved.
*
* See the file LICENSE for redistribution information.
*/
/*
* __wt_fs_file_system --
* Get the active file system handle.
*/
static inline WT_FILE_SYSTEM *
__wt_fs_file_system(WT_SESSION_IMPL *session)
{
return (S2FS(session));
}
/*
* __wt_fs_directory_list --
* Return a list of files from a directory.
*/
static inline int
__wt_fs_directory_list(
WT_SESSION_IMPL *session, const char *dir, const char *prefix, char ***dirlistp, u_int *countp)
{
WT_DECL_RET;
WT_FILE_SYSTEM *file_system;
WT_SESSION *wt_session;
char *path;
*dirlistp = NULL;
*countp = 0;
__wt_verbose(session, WT_VERB_FILEOPS, "%s: directory-list: prefix %s", dir,
prefix == NULL ? "all" : prefix);
WT_RET(__wt_filename(session, dir, &path));
file_system = __wt_fs_file_system(session);
wt_session = (WT_SESSION *)session;
ret = file_system->fs_directory_list(file_system, wt_session, path, prefix, dirlistp, countp);
__wt_free(session, path);
return (ret);
}
/*
* __wt_fs_directory_list_single --
* Return a single matching file from a directory.
*/
static inline int
__wt_fs_directory_list_single(
WT_SESSION_IMPL *session, const char *dir, const char *prefix, char ***dirlistp, u_int *countp)
{
WT_DECL_RET;
WT_FILE_SYSTEM *file_system;
WT_SESSION *wt_session;
char *path;
*dirlistp = NULL;
*countp = 0;
__wt_verbose(session, WT_VERB_FILEOPS, "%s: directory-list-single: prefix %s", dir,
prefix == NULL ? "all" : prefix);
WT_RET(__wt_filename(session, dir, &path));
file_system = __wt_fs_file_system(session);
wt_session = (WT_SESSION *)session;
ret = file_system->fs_directory_list_single(
file_system, wt_session, path, prefix, dirlistp, countp);
__wt_free(session, path);
return (ret);
}
/*
* __wt_fs_directory_list_free --
* Free memory allocated by __wt_fs_directory_list.
*/
static inline int
__wt_fs_directory_list_free(WT_SESSION_IMPL *session, char ***dirlistp, u_int count)
{
WT_DECL_RET;
WT_FILE_SYSTEM *file_system;
WT_SESSION *wt_session;
if (*dirlistp != NULL) {
file_system = __wt_fs_file_system(session);
wt_session = (WT_SESSION *)session;
ret = file_system->fs_directory_list_free(file_system, wt_session, *dirlistp, count);
}
*dirlistp = NULL;
return (ret);
}
/*
* __wt_fs_exist --
* Return if the file exists.
*/
static inline int
__wt_fs_exist(WT_SESSION_IMPL *session, const char *name, bool *existp)
{
WT_DECL_RET;
WT_FILE_SYSTEM *file_system;
WT_SESSION *wt_session;
char *path;
__wt_verbose(session, WT_VERB_FILEOPS, "%s: file-exist", name);
WT_RET(__wt_filename(session, name, &path));
file_system = __wt_fs_file_system(session);
wt_session = (WT_SESSION *)session;
ret = file_system->fs_exist(file_system, wt_session, path, existp);
__wt_free(session, path);
return (ret);
}
/*
* __wt_fs_remove --
* Remove the file.
*/
static inline int
__wt_fs_remove(WT_SESSION_IMPL *session, const char *name, bool durable)
{
WT_DECL_RET;
WT_FILE_SYSTEM *file_system;
WT_SESSION *wt_session;
char *path;
WT_ASSERT(session, !F_ISSET(S2C(session), WT_CONN_READONLY));
__wt_verbose(session, WT_VERB_FILEOPS, "%s: file-remove", name);
#ifdef HAVE_DIAGNOSTIC
/*
* It is a layering violation to retrieve a WT_FH here, but it is a useful diagnostic to ensure
* WiredTiger doesn't have the handle open.
*/
if (__wt_handle_is_open(session, name))
WT_RET_MSG(session, EINVAL, "%s: file-remove: file has open handles", name);
#endif
WT_RET(__wt_filename(session, name, &path));
file_system = __wt_fs_file_system(session);
wt_session = (WT_SESSION *)session;
ret = file_system->fs_remove(file_system, wt_session, path, durable ? WT_FS_DURABLE : 0);
__wt_free(session, path);
return (ret);
}
/*
* __wt_fs_rename --
* Rename the file.
*/
static inline int
__wt_fs_rename(WT_SESSION_IMPL *session, const char *from, const char *to, bool durable)
{
WT_DECL_RET;
WT_FILE_SYSTEM *file_system;
WT_SESSION *wt_session;
char *from_path, *to_path;
WT_ASSERT(session, !F_ISSET(S2C(session), WT_CONN_READONLY));
__wt_verbose(session, WT_VERB_FILEOPS, "%s to %s: file-rename", from, to);
#ifdef HAVE_DIAGNOSTIC
/*
* It is a layering violation to retrieve a WT_FH here, but it is a useful diagnostic to ensure
* WiredTiger doesn't have the handle open.
*/
if (__wt_handle_is_open(session, from))
WT_RET_MSG(session, EINVAL, "%s: file-rename: file has open handles", from);
if (__wt_handle_is_open(session, to))
WT_RET_MSG(session, EINVAL, "%s: file-rename: file has open handles", to);
#endif
from_path = to_path = NULL;
WT_ERR(__wt_filename(session, from, &from_path));
WT_ERR(__wt_filename(session, to, &to_path));
file_system = __wt_fs_file_system(session);
wt_session = (WT_SESSION *)session;
ret = file_system->fs_rename(
file_system, wt_session, from_path, to_path, durable ? WT_FS_DURABLE : 0);
err:
__wt_free(session, from_path);
__wt_free(session, to_path);
return (ret);
}
/*
* __wt_fs_size --
* Return the size of a file in bytes, by file name.
*/
static inline int
__wt_fs_size(WT_SESSION_IMPL *session, const char *name, wt_off_t *sizep)
{
WT_DECL_RET;
WT_FILE_SYSTEM *file_system;
WT_SESSION *wt_session;
char *path;
__wt_verbose(session, WT_VERB_FILEOPS, "%s: file-size", name);
WT_RET(__wt_filename(session, name, &path));
file_system = __wt_fs_file_system(session);
wt_session = (WT_SESSION *)session;
ret = file_system->fs_size(file_system, wt_session, path, sizep);
__wt_free(session, path);
return (ret);
}
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