+++ /dev/null
-#include <pthread.h>
-#include <netdb.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <sys/time.h>
-#include <unistd.h>
-#include <fcntl.h>
-
-#include <cstdlib>
-#include <csignal>
-#include <cstring>
-#include <cerrno>
-#include <cmath>
-#include <cstdio>
-
-#include "stg/common.h"
-#include "stg/locker.h"
-
-#include "stg/pinger.h"
-
-#ifdef STG_TIME
-extern volatile time_t stgTime;
-#endif
-
-//-----------------------------------------------------------------------------
-STG_PINGER::STG_PINGER(time_t d)
- : delay(d),
- nonstop(false),
- isRunningRecver(false),
- isRunningSender(false),
- sendSocket(-1),
- recvSocket(-1),
- sendThread(),
- recvThread(),
- pmSend(),
- pid(0),
- errorStr(),
- pingIP(),
- ipToAdd(),
- ipToDel(),
- mutex()
-{
-pthread_mutex_init(&mutex, NULL);
-memset(&pmSend, 0, sizeof(pmSend));
-}
-//-----------------------------------------------------------------------------
-STG_PINGER::~STG_PINGER()
-{
-pthread_mutex_destroy(&mutex);
-}
-//-----------------------------------------------------------------------------
-int STG_PINGER::Start()
-{
-struct protoent *proto = NULL;
-proto = getprotobyname("ICMP");
-sendSocket = socket(PF_INET, SOCK_RAW, proto->p_proto);
-recvSocket = socket(PF_INET, SOCK_RAW, proto->p_proto);
-nonstop = true;
-pid = (int) getpid() % 65535;
-if (sendSocket < 0 || recvSocket < 0)
- {
- errorStr = "Cannot create socket.";
- return -1;
- }
-
-if (pthread_create(&sendThread, NULL, RunSendPing, this))
- {
- errorStr = "Cannot create send thread.";
- return -1;
- }
-
-if (pthread_create(&recvThread, NULL, RunRecvPing, this))
- {
- errorStr = "Cannot create recv thread.";
- return -1;
- }
-
-return 0;
-}
-//-----------------------------------------------------------------------------
-int STG_PINGER::Stop()
-{
-close(recvSocket);
-nonstop = false;
-if (isRunningRecver)
- {
- //5 seconds to thread stops itself
- for (size_t i = 0; i < 25; i++)
- {
- if (i % 5 == 0)
- SendPing(0x0100007f);//127.0.0.1
-
- if (!isRunningRecver)
- break;
-
- struct timespec ts = {0, 200000000};
- nanosleep(&ts, NULL);
- }
- }
-
-if (isRunningSender)
- {
- //5 seconds to thread stops itself
- for (size_t i = 0; i < 25; i++)
- {
- if (!isRunningSender)
- break;
-
- struct timespec ts = {0, 200000000};
- nanosleep(&ts, NULL);
- }
- }
-
-close(sendSocket);
-
-if (isRunningSender || isRunningRecver)
- return -1;
-
-return 0;
-}
-//-----------------------------------------------------------------------------
-void STG_PINGER::AddIP(uint32_t ip)
-{
-STG_LOCKER lock(&mutex);
-ipToAdd.push_back(ip);
-}
-//-----------------------------------------------------------------------------
-void STG_PINGER::DelIP(uint32_t ip)
-{
-STG_LOCKER lock(&mutex);
-ipToDel.push_back(ip);
-}
-//-----------------------------------------------------------------------------
-void STG_PINGER::RealAddIP()
-{
-STG_LOCKER lock(&mutex);
-
-std::list<uint32_t>::iterator iter;
-iter = ipToAdd.begin();
-while (iter != ipToAdd.end())
- {
- pingIP.insert(std::make_pair(*iter, 0));
- ++iter;
- }
-ipToAdd.erase(ipToAdd.begin(), ipToAdd.end());
-}
-//-----------------------------------------------------------------------------
-void STG_PINGER::RealDelIP()
-{
-STG_LOCKER lock(&mutex);
-
-std::list<uint32_t>::iterator iter;
-std::multimap<uint32_t, time_t>::iterator treeIter;
-iter = ipToDel.begin();
-while (iter != ipToDel.end())
- {
- treeIter = pingIP.find(*iter);
- if (treeIter != pingIP.end())
- pingIP.erase(treeIter);
-
- ++iter;
- }
-ipToDel.erase(ipToDel.begin(), ipToDel.end());
-}
-//-----------------------------------------------------------------------------
-void STG_PINGER::PrintAllIP()
-{
-STG_LOCKER lock(&mutex);
-std::multimap<uint32_t, time_t>::iterator iter;
-iter = pingIP.begin();
-while (iter != pingIP.end())
- {
- uint32_t ip = iter->first;
- time_t t = iter->second;
- std::string s;
- x2str(t, s);
- printf("ip = %s, time = %9s\n", inet_ntostring(ip).c_str(), s.c_str());
- ++iter;
- }
-
-}
-//-----------------------------------------------------------------------------
-int STG_PINGER::GetIPTime(uint32_t ip, time_t * t) const
-{
-STG_LOCKER lock(&mutex);
-std::multimap<uint32_t, time_t>::const_iterator treeIter;
-
-treeIter = pingIP.find(ip);
-if (treeIter == pingIP.end())
- return -1;
-
-*t = treeIter->second;
-return 0;
-}
-//-----------------------------------------------------------------------------
-uint16_t STG_PINGER::PingCheckSum(void * data, int len)
-{
-uint16_t * buf = static_cast<uint16_t *>(data);
-uint32_t sum = 0;
-uint32_t result;
-
-for ( sum = 0; len > 1; len -= 2 )
- sum += *buf++;
-
-if ( len == 1 )
- sum += *reinterpret_cast<uint8_t*>(buf);
-
-sum = (sum >> 16) + (sum & 0xFFFF);
-sum += (sum >> 16);
-result = ~sum;
-return static_cast<uint16_t>(result);
-}
-//-----------------------------------------------------------------------------
-int STG_PINGER::SendPing(uint32_t ip)
-{
-struct sockaddr_in addr;
-memset(&addr, 0, sizeof(addr));
-addr.sin_family = AF_INET;
-addr.sin_port = 0;
-addr.sin_addr.s_addr = ip;
-
-memset(&pmSend, 0, sizeof(pmSend));
-pmSend.hdr.type = ICMP_ECHO;
-pmSend.hdr.un.echo.id = static_cast<uint16_t>(pid);
-memcpy(pmSend.msg, &ip, sizeof(ip));
-
-pmSend.hdr.checksum = PingCheckSum(&pmSend, sizeof(pmSend));
-
-if (sendto(sendSocket, &pmSend, sizeof(pmSend), 0, (sockaddr *)&addr, sizeof(addr)) <= 0 )
- {
- errorStr = "Send ping error: " + std::string(strerror(errno));
- return -1;
- }
-
-
-return 0;
-}
-//-----------------------------------------------------------------------------
-uint32_t STG_PINGER::RecvPing()
-{
-struct sockaddr_in addr;
-uint32_t ipAddr = 0;
-
-char buf[128];
-memset(buf, 0, sizeof(buf));
-socklen_t len = sizeof(addr);
-
-if (recvfrom(recvSocket, &buf, sizeof(buf), 0, reinterpret_cast<struct sockaddr*>(&addr), &len))
- {
- struct IP_HDR * ip = static_cast<struct IP_HDR *>(static_cast<void *>(buf));
- struct ICMP_HDR *icmp = static_cast<struct ICMP_HDR *>(static_cast<void *>(buf + ip->ihl * 4));
-
- if (icmp->un.echo.id != pid)
- return 0;
-
- ipAddr = *static_cast<uint32_t*>(static_cast<void *>(buf + sizeof(ICMP_HDR) + ip->ihl * 4));
- }
-
-return ipAddr;
-}
-//-----------------------------------------------------------------------------
-void * STG_PINGER::RunSendPing(void * d)
-{
-sigset_t signalSet;
-sigfillset(&signalSet);
-pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
-
-STG_PINGER * pinger = static_cast<STG_PINGER *>(d);
-
-pinger->isRunningSender = true;
-time_t lastPing = 0;
-while (pinger->nonstop)
- {
- pinger->RealAddIP();
- pinger->RealDelIP();
-
- std::multimap<uint32_t, time_t>::iterator iter;
- iter = pinger->pingIP.begin();
- while (iter != pinger->pingIP.end())
- {
- pinger->SendPing(iter->first);
- ++iter;
- }
-
- time_t currTime;
-
- #ifdef STG_TIME
- lastPing = stgTime;
- currTime = stgTime;
- #else
- currTime = lastPing = time(NULL);
- #endif
-
- while (currTime - lastPing < pinger->delay && pinger->nonstop)
- {
- #ifdef STG_TIME
- currTime = stgTime;
- #else
- currTime = time(NULL);
- #endif
- struct timespec ts = {0, 20000000};
- nanosleep(&ts, NULL);
- }
- }
-
-pinger->isRunningSender = false;
-
-return NULL;
-}
-//-----------------------------------------------------------------------------
-void * STG_PINGER::RunRecvPing(void * d)
-{
-sigset_t signalSet;
-sigfillset(&signalSet);
-pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
-
-STG_PINGER * pinger = static_cast<STG_PINGER *>(d);
-
-pinger->isRunningRecver = true;
-
-while (pinger->nonstop)
- {
- uint32_t ip = pinger->RecvPing();
-
- if (ip)
- {
- std::multimap<uint32_t, time_t>::iterator treeIterUpper = pinger->pingIP.upper_bound(ip);
- std::multimap<uint32_t, time_t>::iterator treeIterLower = pinger->pingIP.lower_bound(ip);
- while (treeIterUpper != treeIterLower)
- {
- #ifdef STG_TIME
- treeIterLower->second = stgTime;
- #else
- treeIterLower->second = time(NULL);
- #endif
- ++treeIterLower;
- }
- }
-
- }
-pinger->isRunningRecver = false;
-return NULL;
-}
-//-----------------------------------------------------------------------------
git.stg.codes / stg.git / blobdiff