diff options
Diffstat (limited to 'src/fluent-bit/plugins/in_node_exporter_metrics/ne_loadavg_linux.c')
-rw-r--r-- | src/fluent-bit/plugins/in_node_exporter_metrics/ne_loadavg_linux.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/fluent-bit/plugins/in_node_exporter_metrics/ne_loadavg_linux.c b/src/fluent-bit/plugins/in_node_exporter_metrics/ne_loadavg_linux.c new file mode 100644 index 000000000..13d872593 --- /dev/null +++ b/src/fluent-bit/plugins/in_node_exporter_metrics/ne_loadavg_linux.c @@ -0,0 +1,126 @@ +/* -*- 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_sds.h> +#include <fluent-bit/flb_input_plugin.h> + +#include "ne.h" +#include "ne_utils.h" + +#include <unistd.h> + +/* Setup metrics contexts */ +static int ne_loadavg_configure(struct flb_ne *ctx) +{ + struct cmt_gauge *g; + + /* loadavg 1m */ + g = cmt_gauge_create(ctx->cmt, "node", "", "load1", + "1m load average.", + 0, NULL); + ctx->lavg_1 = g; + + /* loadavg 5m */ + g = cmt_gauge_create(ctx->cmt, "node", "", "load5", + "5m load average.", + 0, NULL); + ctx->lavg_5 = g; + + /* loadavg 15m */ + g = cmt_gauge_create(ctx->cmt, "node", "", "load15", + "15m load average.", + 0, NULL); + ctx->lavg_15 = g; + + return 0; +} + +static int loadavg_update(struct flb_ne *ctx) +{ + int ret; + int parts; + double val; + uint64_t ts; + struct mk_list *head; + struct mk_list list; + struct mk_list split_list; + struct flb_slist_entry *line; + struct flb_slist_entry *load; + + mk_list_init(&list); + mk_list_init(&split_list); + + ret = ne_utils_file_read_lines(ctx->path_procfs, "/loadavg", &list); + if (ret == -1) { + return -1; + } + + ts = cfl_time_now(); + mk_list_foreach(head, &list) { + line = mk_list_entry(head, struct flb_slist_entry, _head); + + mk_list_init(&split_list); + ret = flb_slist_split_string(&split_list, line->str, ' ', -1); + if (ret == -1) { + continue; + } + parts = ret; + + parts = ret; + if (parts == 0) { + flb_slist_destroy(&split_list); + continue; + } + + /* 1m */ + load = flb_slist_entry_get(&split_list, 0); + ne_utils_str_to_double(load->str, &val); + cmt_gauge_set(ctx->lavg_1, ts, val, 0, NULL); + + /* 5m */ + load = flb_slist_entry_get(&split_list, 1); + ne_utils_str_to_double(load->str, &val); + cmt_gauge_set(ctx->lavg_5, ts, val, 0, NULL); + + /* 15m */ + load = flb_slist_entry_get(&split_list, 2); + ne_utils_str_to_double(load->str, &val); + cmt_gauge_set(ctx->lavg_15, ts, val, 0, NULL); + + flb_slist_destroy(&split_list); + + break; + } + + flb_slist_destroy(&list); + return 0; +} + +int ne_loadavg_init(struct flb_ne *ctx) +{ + ne_loadavg_configure(ctx); + return 0; +} + +int ne_loadavg_update(struct flb_ne *ctx) +{ + loadavg_update(ctx); + return 0; +} |