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sems/apps/monitoring/Monitoring.cpp

452 lines
12 KiB

/*
* $Id$
*
* Copyright (C) 2009 IPTEGO GmbH
*
* This file is part of SEMS, a free SIP media server.
*
* SEMS is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version
*
* For a license to use the SEMS software under conditions
* other than those described here, or to purchase support for this
* software, please contact iptel.org by e-mail at the following addresses:
* info@iptel.org
*
* SEMS is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "Monitoring.h"
#include "AmConfigReader.h"
#include "AmEventDispatcher.h"
#include "log.h"
#include <sys/types.h>
#include <regex.h>
#include <unistd.h>
//EXPORT_PLUGIN_CLASS_FACTORY(Monitor, MOD_NAME);
extern "C" void* plugin_class_create()
{
Monitor* m_inst = Monitor::instance();
assert(dynamic_cast<AmDynInvokeFactory*>(m_inst));
return m_inst;
}
Monitor* Monitor::_instance=0;
unsigned int Monitor::gcInterval = 10;
Monitor* Monitor::instance()
{
if(_instance == NULL)
_instance = new Monitor(MOD_NAME);
return _instance;
}
Monitor::Monitor(const string& name)
: AmDynInvokeFactory(MOD_NAME), gc_thread(NULL) {
}
Monitor::~Monitor() {
}
int Monitor::onLoad() {
// todo: if GC configured, start thread
AmConfigReader cfg;
if(cfg.loadFile(AmConfig::ModConfigPath + string(MOD_NAME ".conf"))) {
DBG("monitoring not starting garbage collector\n");
return 0;
}
if (cfg.getParameter("run_garbage_collector","no") == "yes") {
gcInterval = cfg.getParameterInt("garbage_collector_interval", 10);
DBG("Running garbage collection for monitoring every %u seconds\n",
gcInterval);
gc_thread.reset(new MonitorGarbageCollector());
gc_thread->start();
AmEventDispatcher::instance()->addEventQueue("monitoring_gc", gc_thread.get());
// // add garbage collector to garbage collector...
// AmThreadWatcher::instance()->add(gc_thread);
}
return 0;
}
void Monitor::invoke(const string& method,
const AmArg& args, AmArg& ret) {
if((method == "log") || (method == "set")) {
log(args,ret);
} else if((method == "logAdd") || (method == "add")) {
logAdd(args,ret);
} else if(method == "markFinished"){
markFinished(args,ret);
} else if(method == "setExpiration"){
setExpiration(args,ret);
} else if(method == "get"){
get(args,ret);
} else if(method == "getAttribute"){
getAttribute(args,ret);
} else if(method == "getAttributeFinished"){
getAttributeFinished(args,ret);
} else if(method == "getAttributeActive"){
getAttributeActive(args,ret);
} else if(method == "list"){
listAll(args,ret);
} else if(method == "listByFilter"){
listByFilter(args,ret);
} else if(method == "listByRegex"){
listByRegex(args,ret);
} else if(method == "listFinished"){
listFinished(args,ret);
} else if(method == "listActive"){
listActive(args,ret);
} else if(method == "clear"){
clear(args,ret);
} else if(method == "clearFinished"){
clearFinished(args,ret);
} else if(method == "erase"){
clear(args,ret);
} else if(method == "_list"){
ret.push(AmArg("log"));
ret.push(AmArg("set"));
ret.push(AmArg("logAdd"));
ret.push(AmArg("add"));
ret.push(AmArg("markFinished"));
ret.push(AmArg("setExpiration"));
ret.push(AmArg("erase"));
ret.push(AmArg("clear"));
ret.push(AmArg("clearFinished"));
ret.push(AmArg("get"));
ret.push(AmArg("getAttribute"));
ret.push(AmArg("getAttributeActive"));
ret.push(AmArg("getAttributeFinished"));
ret.push(AmArg("list"));
ret.push(AmArg("listByFilter"));
ret.push(AmArg("listByRegex"));
ret.push(AmArg("listFinished"));
ret.push(AmArg("listActive"));
} else
throw AmDynInvoke::NotImplemented(method);
}
void Monitor::log(const AmArg& args, AmArg& ret) {
assertArgCStr(args[0]);
LogBucket& bucket = getLogBucket(args[0].asCStr());
bucket.log_lock.lock();
try {
for (size_t i=1;i<args.size();i+=2)
bucket.log[args[0].asCStr()].info[args[i].asCStr()]=AmArg(args[i+1]);
} catch (...) {
bucket.log_lock.unlock();
ret.push(-1);
ret.push("ERROR while converting value");
throw;
}
bucket.log_lock.unlock();
ret.push(0);
ret.push("OK");
}
void Monitor::logAdd(const AmArg& args, AmArg& ret) {
assertArgCStr(args[0]);
assertArgCStr(args[1]);
LogBucket& bucket = getLogBucket(args[0].asCStr());
bucket.log_lock.lock();
try {
AmArg& val = bucket.log[args[0].asCStr()].info[args[1].asCStr()];
if (!isArgArray(val)) {
AmArg v1 = val;
val = AmArg();
val.push(v1);
}
val.push(AmArg(args[2]));
} catch (...) {
bucket.log_lock.unlock();
throw;
}
ret.push(0);
ret.push("OK");
bucket.log_lock.unlock();
}
void Monitor::markFinished(const AmArg& args, AmArg& ret) {
assertArgCStr(args[0]);
LogBucket& bucket = getLogBucket(args[0].asCStr());
bucket.log_lock.lock();
if (!bucket.log[args[0].asCStr()].finished)
bucket.log[args[0].asCStr()].finished = time(0);
bucket.log_lock.unlock();
ret.push(0);
ret.push("OK");
}
void Monitor::setExpiration(const AmArg& args, AmArg& ret) {
assertArgCStr(args[0]);
assertArgInt(args[1]);
LogBucket& bucket = getLogBucket(args[0].asCStr());
bucket.log_lock.lock();
bucket.log[args[0].asCStr()].finished = args[1].asInt();
bucket.log_lock.unlock();
ret.push(0);
ret.push("OK");
}
void Monitor::erase(const AmArg& args, AmArg& ret) {
assertArgCStr(args[0]);
LogBucket& bucket = getLogBucket(args[0].asCStr());
bucket.log_lock.lock();
bucket.log.erase(args[0].asCStr());
bucket.log_lock.unlock();
ret.push(0);
ret.push("OK");
}
void Monitor::clear(const AmArg& args, AmArg& ret) {
for (int i=0;i<NUM_LOG_BUCKETS;i++) {
logs[i].log_lock.lock();
logs[i].log.clear();
logs[i].log_lock.unlock();
}
ret.push(0);
ret.push("OK");
}
void Monitor::clearFinished(const AmArg& args, AmArg& ret) {
clearFinished();
ret.push(0);
ret.push("OK");
}
void Monitor::clearFinished() {
time_t now = time(0);
for (int i=0;i<NUM_LOG_BUCKETS;i++) {
logs[i].log_lock.lock();
std::map<string, LogInfo>::iterator it=
logs[i].log.begin();
while (it != logs[i].log.end()) {
if (it->second.finished &&
it->second.finished <= now) {
std::map<string, LogInfo>::iterator d_it = it;
it++;
logs[i].log.erase(d_it);
} else {
it++;
}
}
logs[i].log_lock.unlock();
}
}
void Monitor::get(const AmArg& args, AmArg& ret) {
assertArgCStr(args[0]);
ret.assertArray();
LogBucket& bucket = getLogBucket(args[0].asCStr());
bucket.log_lock.lock();
std::map<string, LogInfo>::iterator it=bucket.log.find(args[0].asCStr());
if (it!=bucket.log.end())
ret.push(it->second.info);
bucket.log_lock.unlock();
}
void Monitor::getAttribute(const AmArg& args, AmArg& ret) {
assertArgCStr(args[0]);
string attr_name = args[0].asCStr();
for (int i=0;i<NUM_LOG_BUCKETS;i++) {
logs[i].log_lock.lock();
for (std::map<string, LogInfo>::iterator it=
logs[i].log.begin();it != logs[i].log.end();it++) {
ret.push(AmArg());
AmArg& val = ret.get(ret.size()-1);
val.push(AmArg(it->first.c_str()));
val.push(it->second.info[attr_name]);
}
logs[i].log_lock.unlock();
}
}
#define DEF_GET_ATTRIB_FUNC(func_name, cond) \
void Monitor::func_name(const AmArg& args, AmArg& ret) { \
assertArgCStr(args[0]); \
ret.assertArray(); \
string attr_name = args[0].asCStr(); \
time_t now = time(0); \
for (int i=0;i<NUM_LOG_BUCKETS;i++) { \
logs[i].log_lock.lock(); \
for (std::map<string, LogInfo>::iterator it= \
logs[i].log.begin();it != logs[i].log.end();it++) { \
if (cond) { \
ret.push(AmArg()); \
AmArg& val = ret.get(ret.size()-1); \
val.push(AmArg(it->first.c_str())); \
val.push(it->second.info[attr_name]); \
} \
} \
logs[i].log_lock.unlock(); \
} \
}
DEF_GET_ATTRIB_FUNC(getAttributeActive, (!(it->second.finished &&
it->second.finished <= now)))
DEF_GET_ATTRIB_FUNC(getAttributeFinished,(it->second.finished &&
it->second.finished <= now))
#undef DEF_GET_ATTRIB_FUNC
void Monitor::listAll(const AmArg& args, AmArg& ret) {
ret.assertArray();
for (int i=0;i<NUM_LOG_BUCKETS;i++) {
logs[i].log_lock.lock();
for (std::map<string, LogInfo>::iterator it=
logs[i].log.begin(); it != logs[i].log.end(); it++) {
ret.push(AmArg(it->first.c_str()));
}
logs[i].log_lock.unlock();
}
}
void Monitor::listByFilter(const AmArg& args, AmArg& ret) {
ret.assertArray();
for (int i=0;i<NUM_LOG_BUCKETS;i++) {
logs[i].log_lock.lock();
try {
for (std::map<string, LogInfo>::iterator it=
logs[i].log.begin(); it != logs[i].log.end(); it++) {
bool match = true;
for (size_t i=0;i<args.size();i++) {
AmArg& p = args.get(i);
if (!(it->second.info[p.get(0).asCStr()]==p.get(1))) {
match = false;
break;
}
}
if (!match)
continue;
ret.push(AmArg(it->first.c_str()));
}
} catch(...) {
logs[i].log_lock.unlock();
throw;
}
logs[i].log_lock.unlock();
}
}
void Monitor::listByRegex(const AmArg& args, AmArg& ret) {
assertArgCStr(args[0]);
assertArgCStr(args[1]);
ret.assertArray();
regex_t attr_reg;
if(regcomp(&attr_reg,args[1].asCStr(),REG_NOSUB)){
ERROR("could not compile regex '%s'\n", args[1].asCStr());
return;
}
for (int i=0;i<NUM_LOG_BUCKETS;i++) {
logs[i].log_lock.lock();
try {
for (std::map<string, LogInfo>::iterator it=
logs[i].log.begin(); it != logs[i].log.end(); it++) {
if (!it->second.info.hasMember(args[0].asCStr()) ||
!isArgCStr(it->second.info[args[0].asCStr()]) ||
regexec(&attr_reg,it->second.info[args[0].asCStr()].asCStr(),0,0,0))
continue;
ret.push(AmArg(it->first.c_str()));
}
} catch(...) {
logs[i].log_lock.unlock();
throw;
}
logs[i].log_lock.unlock();
}
regfree(&attr_reg);
}
void Monitor::listFinished(const AmArg& args, AmArg& ret) {
time_t now = time(0);
ret.assertArray();
for (int i=0;i<NUM_LOG_BUCKETS;i++) {
logs[i].log_lock.lock();
for (std::map<string, LogInfo>::iterator it=
logs[i].log.begin(); it != logs[i].log.end(); it++) {
if (it->second.finished &&
it->second.finished <= now)
ret.push(AmArg(it->first.c_str()));
}
logs[i].log_lock.unlock();
}
}
void Monitor::listActive(const AmArg& args, AmArg& ret) {
time_t now = time(0);
ret.assertArray();
for (int i=0;i<NUM_LOG_BUCKETS;i++) {
logs[i].log_lock.lock();
for (std::map<string, LogInfo>::iterator it=
logs[i].log.begin(); it != logs[i].log.end(); it++) {
if (!(it->second.finished &&
it->second.finished <= now))
ret.push(AmArg(it->first.c_str()));
}
logs[i].log_lock.unlock();
}
}
LogBucket& Monitor::getLogBucket(const string& call_id) {
if (call_id.empty())
return logs[0];
char c = '\0'; // some distribution...bad luck if all callid start with 00000...
for (size_t i=0;i<5 && i<call_id.length();i++)
c = c ^ call_id[i];
return logs[c % NUM_LOG_BUCKETS];
}
void MonitorGarbageCollector::run() {
DBG("running MonitorGarbageCollector thread\n");
running.set(true);
while (running.get()) {
sleep(Monitor::gcInterval);
Monitor::instance()->clearFinished();
}
DBG("MonitorGarbageCollector thread ends\n");
AmEventDispatcher::instance()->delEventQueue("monitoring_gc");
}
void MonitorGarbageCollector::postEvent(AmEvent* e) {
AmSystemEvent* sys_ev = dynamic_cast<AmSystemEvent*>(e);
if (sys_ev &&
sys_ev->sys_event == AmSystemEvent::ServerShutdown) {
DBG("stopping MonitorGarbageCollector thread\n");
running.set(false);
return;
}
WARN("received unknown event\n");
}
void MonitorGarbageCollector::on_stop() {
}