static int tc_wal_printer(struct tnt_iter *i) {
struct tnt_request *r = TNT_IREQUEST_PTR(i);
struct tnt_stream_xlog *s =
TNT_SXLOG_CAST(TNT_IREQUEST_STREAM(i));
tc_wal_print(&s->hdr, r);
return 0;
}
static int
tnt_xlog_request(struct tnt_stream *s, struct tnt_request *r)
{
struct tnt_stream_xlog *sx = TNT_SXLOG_CAST(s);
struct tnt_log_row *row =
tnt_log_next_to(&sx->log, (union tnt_log_value*)r);
if (row == NULL && tnt_log_error(&sx->log) == TNT_LOG_EOK)
return 1;
return (row) ? 0: -1;
}
int tnt_xlog_reset(struct tnt_stream *s) {
struct tnt_stream_xlog *sx = TNT_SXLOG_CAST(s);
return tnt_log_seek(&(sx->log), sx->log.begin_offset);
}
static void tnt_xlog_free(struct tnt_stream *s) {
struct tnt_stream_xlog *sx = TNT_SXLOG_CAST(s);
tnt_log_close(&sx->log);
tnt_mem_free(s->data);
s->data = NULL;
}
/*
* tnt_xlog_errno()
*
* get saved errno;
*
* s - xlog stream pointer
*/
int tnt_xlog_errno(struct tnt_stream *s) {
return TNT_SXLOG_CAST(s)->log.errno_;
}
/*
* tnt_xlog_strerror()
*
* get stream error status description string;
*
* s - xlog stream pointer
*/
char *tnt_xlog_strerror(struct tnt_stream *s) {
return tnt_log_strerror(&TNT_SXLOG_CAST(s)->log);
}
/*
* tnt_xlog_error()
*
* get stream error status;
*
* s - xlog stream pointer
*/
enum tnt_log_error tnt_xlog_error(struct tnt_stream *s) {
return TNT_SXLOG_CAST(s)->log.error;
}
/*
* tnt_xlog_close()
*
* close xlog stream;
*
* s - xlog stream pointer
*
* returns 0 on success, or -1 on error.
*/
void tnt_xlog_close(struct tnt_stream *s) {
struct tnt_stream_xlog *sx = TNT_SXLOG_CAST(s);
tnt_log_close(&sx->log);
}
/*
* tnt_xlog_open()
*
* open xlog file and associate it with stream;
*
* s - xlog stream pointer
*
* returns 0 on success, or -1 on error.
*/
int tnt_xlog_open(struct tnt_stream *s, const char *file) {
struct tnt_stream_xlog *sx = TNT_SXLOG_CAST(s);
return tnt_log_open(&sx->log, file, TNT_LOG_XLOG);
}