| /* |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you 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 "tscore/BufferWriter.h" |
| #include "policy.h" |
| |
| bool |
| PromotionPolicy::doSample() const |
| { |
| if (_sample > 0) { |
| // coverity[dont_call] |
| double r = drand48(); |
| |
| if (_sample > r) { |
| TSDebug(PLUGIN_NAME, "checking sampling, is %f > %f? Yes!", _sample, r); |
| } else { |
| TSDebug(PLUGIN_NAME, "checking sampling, is %f > %f? No!", _sample, r); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| int |
| PromotionPolicy::create_stat(std::string_view name, std::string_view remap_identifier) |
| { |
| int stat_id = -1; |
| ts::LocalBufferWriter<MAX_STAT_LENGTH> stat_name; |
| |
| stat_name.reset().clip(1); |
| stat_name.print("plugin.{}.{}.{}", PLUGIN_NAME, remap_identifier, name); |
| stat_name.extend(1).write('\0'); |
| |
| if (TS_ERROR == TSStatFindName(stat_name.data(), &stat_id)) { |
| stat_id = TSStatCreate(stat_name.data(), TS_RECORDDATATYPE_INT, TS_STAT_NON_PERSISTENT, TS_STAT_SYNC_SUM); |
| if (TS_ERROR == stat_id) { |
| TSDebug(PLUGIN_NAME, "error creating stat_name: %s", stat_name.data()); |
| } else { |
| TSDebug(PLUGIN_NAME, "created stat_name: %s, stat_id: %d", stat_name.data(), stat_id); |
| } |
| } |
| |
| return stat_id; |
| } |