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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Fluent Bit
* ==========
* Copyright (C) 2015-2022 The Fluent Bit Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <fluent-bit/flb_info.h>
#include <fluent-bit/flb_pack.h>
#include <fluent-bit/stream_processor/flb_sp.h>
#include <fluent-bit/stream_processor/flb_sp_parser.h>
static inline void pack_key(msgpack_packer *mp_pck,
struct flb_sp_cmd_key *cmd_key,
const char *name, int len)
{
if (cmd_key->alias) {
msgpack_pack_str(mp_pck, flb_sds_len(cmd_key->alias));
msgpack_pack_str_body(mp_pck, cmd_key->alias,
flb_sds_len(cmd_key->alias));
}
else {
msgpack_pack_str(mp_pck, len);
msgpack_pack_str_body(mp_pck, name, len);
}
}
static int func_now(msgpack_packer *mp_pck, struct flb_sp_cmd_key *cmd_key)
{
size_t len;
time_t now;
char buf[32];
struct tm *local;
local = flb_malloc(sizeof(struct tm));
if (!local) {
flb_errno();
return 0;
}
/* Get current system time */
now = time(NULL);
localtime_r(&now, local);
/* Format string value */
len = strftime(buf, sizeof(buf) - 1, "%Y-%m-%d %H:%M:%S", local);
flb_free(local);
pack_key(mp_pck, cmd_key, "NOW()", 5);
msgpack_pack_str(mp_pck, len);
msgpack_pack_str_body(mp_pck, buf, len);
return 1;
}
static int func_unix_timestamp(msgpack_packer *mp_pck,
struct flb_sp_cmd_key *cmd_key)
{
time_t now;
/* Get unix timestamp */
now = time(NULL);
pack_key(mp_pck, cmd_key, "UNIX_TIMESTAMP()", 16);
msgpack_pack_uint64(mp_pck, now);
return 1;
}
/*
* Wrapper to handle time functions, returns the number of entries added
* to the map.
*/
int flb_sp_func_time(msgpack_packer *mp_pck, struct flb_sp_cmd_key *cmd_key)
{
switch (cmd_key->time_func) {
case FLB_SP_NOW:
return func_now(mp_pck, cmd_key);
case FLB_SP_UNIX_TIMESTAMP:
return func_unix_timestamp(mp_pck, cmd_key);
};
return 0;
}
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