/*
* __txn_oplist_printlog --
* Print a list of operations from a log record.
*/
static int
__txn_oplist_printlog(WT_SESSION_IMPL *session,
const uint8_t **pp, const uint8_t *end, uint32_t flags)
{
bool firstrecord;
firstrecord = true;
WT_RET(__wt_fprintf(session, WT_STDOUT(session), " \"ops\": [\n"));
/* The logging subsystem zero-pads records. */
while (*pp < end && **pp) {
if (!firstrecord)
WT_RET(__wt_fprintf(
session, WT_STDOUT(session), ",\n"));
WT_RET(__wt_fprintf(session, WT_STDOUT(session), " {"));
firstrecord = false;
WT_RET(__wt_txn_op_printlog(session, pp, end, flags));
WT_RET(__wt_fprintf(session, WT_STDOUT(session), "\n }"));
}
WT_RET(__wt_fprintf(session, WT_STDOUT(session), "\n ]\n"));
return (0);
}
/*
* __handle_message_default --
* Default WT_EVENT_HANDLER->handle_message implementation: send to stdout.
*/
static int
__handle_message_default(WT_EVENT_HANDLER *handler,
WT_SESSION *wt_session, const char *message)
{
WT_SESSION_IMPL *session;
WT_UNUSED(handler);
session = (WT_SESSION_IMPL *)wt_session;
WT_RET(__wt_fprintf(session, WT_STDOUT(session), "%s\n", message));
WT_RET(__wt_fflush(session, WT_STDOUT(session)));
return (0);
}
/*
* __wt_os_stdio --
* Initialize the stdio configuration.
*/
int
__wt_os_stdio(WT_SESSION_IMPL *session)
{
__stdio_init(WT_STDERR(session), "stderr", stderr);
__stdio_init(WT_STDOUT(session), "stdout", stdout);
return (0);
}
/*
* __txn_printlog --
* Print a log record in a human-readable format.
*/
static int
__txn_printlog(WT_SESSION_IMPL *session,
WT_ITEM *rawrec, WT_LSN *lsnp, WT_LSN *next_lsnp,
void *cookie, int firstrecord)
{
WT_LOG_RECORD *logrec;
WT_TXN_PRINTLOG_ARGS *args;
const uint8_t *end, *p;
const char *msg;
uint64_t txnid;
uint32_t fileid, lsnfile, lsnoffset, rectype;
int32_t start;
bool compressed;
WT_UNUSED(next_lsnp);
args = cookie;
p = WT_LOG_SKIP_HEADER(rawrec->data);
end = (const uint8_t *)rawrec->data + rawrec->size;
logrec = (WT_LOG_RECORD *)rawrec->data;
compressed = F_ISSET(logrec, WT_LOG_RECORD_COMPRESSED);
/* First, peek at the log record type. */
WT_RET(__wt_logrec_read(session, &p, end, &rectype));
if (!firstrecord)
WT_RET(__wt_fprintf(session, WT_STDOUT(session), ",\n"));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" { \"lsn\" : [%" PRIu32 ",%" PRIu32 "],\n",
lsnp->l.file, lsnp->l.offset));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"hdr_flags\" : \"%s\",\n", compressed ? "compressed" : ""));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"rec_len\" : %" PRIu32 ",\n", logrec->len));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"mem_len\" : %" PRIu32 ",\n",
compressed ? logrec->mem_len : logrec->len));
switch (rectype) {
case WT_LOGREC_CHECKPOINT:
WT_RET(__wt_struct_unpack(session, p, WT_PTRDIFF(end, p),
WT_UNCHECKED_STRING(II), &lsnfile, &lsnoffset));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"type\" : \"checkpoint\",\n"));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"ckpt_lsn\" : [%" PRIu32 ",%" PRIu32 "]\n",
lsnfile, lsnoffset));
break;
case WT_LOGREC_COMMIT:
WT_RET(__wt_vunpack_uint(&p, WT_PTRDIFF(end, p), &txnid));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"type\" : \"commit\",\n"));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"txnid\" : %" PRIu64 ",\n", txnid));
WT_RET(__txn_oplist_printlog(session, &p, end, args->flags));
break;
case WT_LOGREC_FILE_SYNC:
WT_RET(__wt_struct_unpack(session, p, WT_PTRDIFF(end, p),
WT_UNCHECKED_STRING(Ii), &fileid, &start));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"type\" : \"file_sync\",\n"));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"fileid\" : %" PRIu32 ",\n", fileid));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"start\" : %" PRId32 "\n", start));
break;
case WT_LOGREC_MESSAGE:
WT_RET(__wt_struct_unpack(session, p, WT_PTRDIFF(end, p),
WT_UNCHECKED_STRING(S), &msg));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"type\" : \"message\",\n"));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"message\" : \"%s\"\n", msg));
break;
case WT_LOGREC_SYSTEM:
WT_RET(__wt_struct_unpack(session, p, WT_PTRDIFF(end, p),
WT_UNCHECKED_STRING(II), &lsnfile, &lsnoffset));
WT_RET(__wt_fprintf(session, WT_STDOUT(session),
" \"type\" : \"system\",\n"));
WT_RET(__txn_oplist_printlog(session, &p, end, args->flags));
break;
}
WT_RET(__wt_fprintf(session, WT_STDOUT(session), " }"));
return (0);
}
WT_RET(__txn_oplist_printlog(session, &p, end, args->flags));
break;
}
WT_RET(__wt_fprintf(session, WT_STDOUT(session), " }"));
return (0);
}
/*
* __wt_txn_printlog --
* Print the log in a human-readable format.
*/
int
__wt_txn_printlog(WT_SESSION *wt_session, uint32_t flags)
WT_GCC_FUNC_ATTRIBUTE((visibility("default")))
{
WT_SESSION_IMPL *session;
WT_TXN_PRINTLOG_ARGS args;
session = (WT_SESSION_IMPL *)wt_session;
args.flags = flags;
WT_RET(__wt_fprintf(session, WT_STDOUT(session), "[\n"));
WT_RET(__wt_log_scan(
session, NULL, WT_LOGSCAN_FIRST, __txn_printlog, &args));
WT_RET(__wt_fprintf(session, WT_STDOUT(session), "\n]\n"));
return (0);
}
