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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* Fluent Bit
* ==========
* Copyright (C) 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_input_plugin.h>
#include <fluent-bit/flb_config.h>
#include <fluent-bit/flb_config_map.h>
#include <fluent-bit/flb_error.h>
#include <fluent-bit/flb_pack.h>
#include "we.h"
#include "we_wmi.h"
#include "we_wmi_paging_file.h"
#include "we_util.h"
#include "we_metric.h"
static double nop_adjust(double value)
{
return value;
}
int we_wmi_paging_file_init(struct flb_we *ctx)
{
struct cmt_gauge *g;
ctx->wmi_paging_file = flb_calloc(1, sizeof(struct we_wmi_paging_file_counters));
if (!ctx->wmi_paging_file) {
flb_errno();
return -1;
}
ctx->wmi_paging_file->operational = FLB_FALSE;
g = cmt_gauge_create(ctx->cmt, "windows", "paging_file", "allocated_base_size_megabytes",
"The value indicates the actual amount of disk space allocated "\
"for use with this page file (AllocatedBaseSize)",
0, NULL);
if (!g) {
return -1;
}
ctx->wmi_paging_file->allocated_base_size_megabytes = g;
g = cmt_gauge_create(ctx->cmt, "windows", "paging_file", "current_usage_megabytes",
"The value indicates how much of the total reserved page file " \
"is currently in use (CurrentUsage)",
0, NULL);
if (!g) {
return -1;
}
ctx->wmi_paging_file->current_usage_megabytes = g;
g = cmt_gauge_create(ctx->cmt, "windows", "paging_file", "peak_usage_megabytes",
"The value indicates the highest use page file (PeakUsage)",
0, NULL);
if (!g) {
return -1;
}
ctx->wmi_paging_file->peak_usage_megabytes = g;
ctx->wmi_paging_file->info = flb_calloc(1, sizeof(struct wmi_query_spec));
if (!ctx->wmi_paging_file->info) {
flb_errno();
return -1;
}
ctx->wmi_paging_file->info->metric_instance = (void *)g;
ctx->wmi_paging_file->info->type = CMT_GAUGE;
ctx->wmi_paging_file->info->value_adjuster = nop_adjust;
ctx->wmi_paging_file->info->wmi_counter = "Win32_PageFileUsage";
ctx->wmi_paging_file->info->wmi_property = "";
ctx->wmi_paging_file->info->label_property_count = 0;
ctx->wmi_paging_file->info->label_property_keys = NULL;
ctx->wmi_paging_file->info->where_clause = NULL;
ctx->wmi_paging_file->operational = FLB_TRUE;
return 0;
}
int we_wmi_paging_file_exit(struct flb_we *ctx)
{
ctx->wmi_paging_file->operational = FLB_FALSE;
flb_free(ctx->wmi_paging_file->info);
flb_free(ctx->wmi_paging_file);
return 0;
}
int we_wmi_paging_file_update(struct flb_we *ctx)
{
uint64_t timestamp = 0;
IEnumWbemClassObject* enumerator = NULL;
HRESULT hr;
IWbemClassObject *class_obj = NULL;
ULONG ret = 0;
double val = 0;
if (!ctx->wmi_paging_file->operational) {
flb_plg_error(ctx->ins, "paging_file collector not yet in operational state");
return -1;
}
if (FAILED(we_wmi_coinitialize(ctx))) {
return -1;
}
timestamp = cfl_time_now();
if (FAILED(we_wmi_execute_query(ctx, ctx->wmi_paging_file->info, &enumerator))) {
return -1;
}
while(enumerator) {
hr = enumerator->lpVtbl->Next(enumerator, WBEM_INFINITE, 1, &class_obj, &ret);
if(ret == 0) {
break;
}
val = we_wmi_get_property_value(ctx, "AllocatedBaseSize", class_obj);
cmt_gauge_set(ctx->wmi_paging_file->allocated_base_size_megabytes, timestamp, val, 0, NULL);
val = we_wmi_get_property_value(ctx, "CurrentUsage", class_obj);
cmt_gauge_set(ctx->wmi_paging_file->current_usage_megabytes, timestamp, val, 0, NULL);
val = we_wmi_get_property_value(ctx, "PeakUsage", class_obj);
cmt_gauge_set(ctx->wmi_paging_file->peak_usage_megabytes, timestamp, val, 0, NULL);
class_obj->lpVtbl->Release(class_obj);
}
enumerator->lpVtbl->Release(enumerator);
we_wmi_cleanup(ctx);
return 0;
}
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