/*
* __curmetadata_metadata_search --
* Retrieve the metadata for the metadata table
*/
static int
__curmetadata_metadata_search(WT_SESSION_IMPL *session, WT_CURSOR *cursor)
{
WT_CURSOR_METADATA *mdc;
WT_DECL_RET;
const char *value;
mdc = (WT_CURSOR_METADATA *)cursor;
/* The metadata search interface allocates a new string in value. */
WT_RET(__wt_metadata_search(session, WT_METAFILE_URI, &value));
/*
* Copy the value to the underlying btree cursor's tmp item which will
* be freed when the cursor is closed.
*/
ret = __wt_buf_setstr(session, &cursor->value, value);
__wt_free(session, value);
WT_RET(ret);
WT_RET(__wt_buf_setstr(session, &cursor->key, WT_METADATA_URI));
F_SET(mdc, WT_MDC_ONMETADATA | WT_MDC_POSITIONED);
F_SET(cursor, WT_CURSTD_KEY_EXT | WT_CURSTD_VALUE_EXT);
return (0);
}
/*
* __curmetadata_metadata_search --
* Retrieve the metadata for the metadata table
*/
static int
__curmetadata_metadata_search(WT_SESSION_IMPL *session, WT_CURSOR *cursor)
{
WT_CURSOR_METADATA *mdc;
WT_DECL_RET;
char *value, *stripped;
mdc = (WT_CURSOR_METADATA *)cursor;
/* The metadata search interface allocates a new string in value. */
WT_RET(__wt_metadata_search(session, WT_METAFILE_URI, &value));
if (F_ISSET(mdc, WT_MDC_CREATEONLY)) {
ret = __schema_create_strip(session, value, &stripped);
__wt_free(session, value);
WT_RET(ret);
value = stripped;
}
ret = __wt_buf_setstr(session, &cursor->value, value);
__wt_free(session, value);
WT_RET(ret);
WT_RET(__wt_buf_setstr(session, &cursor->key, WT_METADATA_URI));
F_SET(mdc, WT_MDC_ONMETADATA | WT_MDC_POSITIONED);
F_SET(cursor, WT_CURSTD_KEY_EXT | WT_CURSTD_VALUE_EXT);
return (0);
}
/*
* __posix_directory_sync --
* Flush a directory to ensure file creation, remove or rename is durable.
*/
static int
__posix_directory_sync(WT_SESSION_IMPL *session, const char *path)
{
WT_DECL_ITEM(tmp);
WT_DECL_RET;
int fd, tret;
char *dir;
WT_RET(__wt_scr_alloc(session, 0, &tmp));
WT_ERR(__wt_buf_setstr(session, tmp, path));
/*
* This layer should never see a path that doesn't include a trailing
* path separator, this code asserts that fact.
*/
dir = tmp->mem;
strrchr(dir, '/')[1] = '\0';
fd = -1; /* -Wconditional-uninitialized */
WT_SYSCALL_RETRY((
(fd = open(dir, O_RDONLY, 0444)) == -1 ? -1 : 0), ret);
if (ret != 0)
WT_ERR_MSG(session, ret, "%s: directory-sync: open", dir);
ret = __posix_sync(session, fd, dir, "directory-sync");
WT_SYSCALL(close(fd), tret);
if (tret != 0) {
__wt_err(session, tret, "%s: directory-sync: close", dir);
if (ret == 0)
ret = tret;
}
err: __wt_scr_free(session, &tmp);
return (ret);
}
