X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/704483df2dab0f376b996e04d5c971e99151f439..ec44e6a5acd78852e6df3cbb3e7a1d409c02a062:/stglibs/pinger.lib/pinger.cpp?ds=sidebyside

diff --git a/stglibs/pinger.lib/pinger.cpp b/stglibs/pinger.lib/pinger.cpp
index 68137d7c..edc8c174 100644
--- a/stglibs/pinger.lib/pinger.cpp
+++ b/stglibs/pinger.lib/pinger.cpp
@@ -1,22 +1,24 @@
-#include <stdlib.h>
 #include <pthread.h>
-#include <signal.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 <string.h>
 #include <unistd.h>
 #include <fcntl.h>
-#include <errno.h>
-#include <math.h>
-#include <stdio.h>
 
-#include "pinger.h"
+#include <cstdlib>
+#include <csignal>
+#include <cstring>
+#include <cerrno>
+#include <cmath>
+#include <cstdio>
+
 #include "stg/common.h"
-#include "stg/stg_locker.h"
+#include "stg/locker.h"
+
+#include "stg/pinger.h"
 
 #ifdef STG_TIME
 extern volatile time_t stgTime;
@@ -30,319 +32,315 @@ STG_PINGER::STG_PINGER(time_t d)
       isRunningSender(false),
       sendSocket(-1),
       recvSocket(-1),
-      pid(0)
+      sendThread(),
+      recvThread(),
+      pmSend(),
+      pid(0),
+      errorStr(),
+      pingIP(),
+      ipToAdd(),
+      ipToDel(),
+      mutex()
 {
-    pthread_mutex_init(&mutex, NULL);
-    memset(&pmSend, 0, sizeof(pmSend));
+pthread_mutex_init(&mutex, NULL);
+memset(&pmSend, 0, sizeof(pmSend));
 }
 //-----------------------------------------------------------------------------
 STG_PINGER::~STG_PINGER()
 {
-    pthread_mutex_destroy(&mutex);
+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;
-        }
+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(&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;
-        }
+if (pthread_create(&recvThread, NULL, RunRecvPing, this))
+    {
+    errorStr = "Cannot create recv thread.";
+    return -1;
+    }
 
-    return 0;
+return 0;
 }
 //-----------------------------------------------------------------------------
 int STG_PINGER::Stop()
 {
-    close(recvSocket);
-    nonstop = false;
-    if (isRunningRecver)
+close(recvSocket);
+nonstop = false;
+if (isRunningRecver)
+    {
+    //5 seconds to thread stops itself
+    for (size_t i = 0; i < 25; i++)
         {
-        //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 (i % 5 == 0)
+            SendPing(0x0100007f);//127.0.0.1
 
-            if (!isRunningRecver)
-                break;
+        if (!isRunningRecver)
+            break;
 
-            usleep(200000);
-            }
-
-        //after 5 seconds waiting thread still running. now killing it
-        if (isRunningRecver)
-            {
-            if (pthread_kill(recvThread, SIGINT))
-                {
-                errorStr = "Cannot kill thread.";
-                return -1;
-                }
-            }
+        struct timespec ts = {0, 200000000};
+        nanosleep(&ts, NULL);
         }
+    }
 
-    if (isRunningSender)
+if (isRunningSender)
+    {
+    //5 seconds to thread stops itself
+    for (size_t i = 0; i < 25; i++)
         {
-        //5 seconds to thread stops itself
-        for (size_t i = 0; i < 25; i++)
-            {
-            if (!isRunningSender)
-                break;
-
-            usleep(200000);
-            }
+        if (!isRunningSender)
+            break;
 
-        //after 5 seconds waiting thread still running. now killing it
-        if (isRunningSender)
-            {
-            if (pthread_kill(sendThread, SIGINT))
-                {
-                errorStr = "Cannot kill thread.";
-                return -1;
-                }
-            }
+        struct timespec ts = {0, 200000000};
+        nanosleep(&ts, NULL);
         }
+    }
 
-    close(sendSocket);
-    return 0;
+close(sendSocket);
+
+if (isRunningSender || isRunningRecver)
+    return -1;
+
+return 0;
 }
 //-----------------------------------------------------------------------------
 void STG_PINGER::AddIP(uint32_t ip)
 {
-    STG_LOCKER lock(&mutex, __FILE__, __LINE__);
-    ipToAdd.push_back(ip);
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+ipToAdd.push_back(ip);
 }
 //-----------------------------------------------------------------------------
 void STG_PINGER::DelIP(uint32_t ip)
 {
-    STG_LOCKER lock(&mutex, __FILE__, __LINE__);
-    ipToDel.push_back(ip);
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+ipToDel.push_back(ip);
 }
 //-----------------------------------------------------------------------------
 void STG_PINGER::RealAddIP()
-    {
-    STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+{
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
 
-    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());
+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, __FILE__, __LINE__);
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
 
-    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);
+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());
-}
-//-----------------------------------------------------------------------------
-int STG_PINGER::GetPingIPNum() const
-{
-    return pingIP.size();
+    ++iter;
+    }
+ipToDel.erase(ipToDel.begin(), ipToDel.end());
 }
 //-----------------------------------------------------------------------------
 void STG_PINGER::PrintAllIP()
 {
-    STG_LOCKER lock(&mutex, __FILE__, __LINE__);
-    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;
-        }
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+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, __FILE__, __LINE__);
-    std::multimap<uint32_t, time_t>::const_iterator treeIter;
+STG_LOCKER lock(&mutex, __FILE__, __LINE__);
+std::multimap<uint32_t, time_t>::const_iterator treeIter;
 
-    treeIter = pingIP.find(ip);
-    if (treeIter == pingIP.end())
-        return -1;
+treeIter = pingIP.find(ip);
+if (treeIter == pingIP.end())
+    return -1;
 
-    *t = treeIter->second;
-    return 0;
+*t = treeIter->second;
+return 0;
 }
 //-----------------------------------------------------------------------------
 uint16_t STG_PINGER::PingCheckSum(void * data, int len)
 {
-    unsigned short * buf = (unsigned short *)data;
-    unsigned int sum = 0;
-    unsigned short result;
+uint16_t * buf = static_cast<uint16_t *>(data);
+uint32_t sum = 0;
+uint32_t result;
 
-    for ( sum = 0; len > 1; len -= 2 )
-        sum += *buf++;
+for ( sum = 0; len > 1; len -= 2 )
+    sum += *buf++;
 
-    if ( len == 1 )
-        sum += *(unsigned char*)buf;
+if ( len == 1 )
+    sum += *reinterpret_cast<uint8_t*>(buf);
 
-    sum = (sum >> 16) + (sum & 0xFFFF);
-    sum += (sum >> 16);
-    result = ~sum;
-    return result;
+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;
+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 = pid;
-    memcpy(pmSend.msg, &ip, sizeof(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));
+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;
-        }
+if (sendto(sendSocket, &pmSend, sizeof(pmSend), 0, (sockaddr *)&addr, sizeof(addr)) <= 0 )
+    {
+    errorStr = "Send ping error: " + std::string(strerror(errno));
+    return -1;
+    }
 
 
-    return 0;
+return 0;
 }
 //-----------------------------------------------------------------------------
 uint32_t STG_PINGER::RecvPing()
 {
-    struct sockaddr_in addr;
-    uint32_t ipAddr = 0;
+struct sockaddr_in addr;
+uint32_t ipAddr = 0;
 
-    char buf[128];
-    memset(buf, 0, sizeof(buf));
-    int bytes;
-    socklen_t len = sizeof(addr);
+char buf[128];
+memset(buf, 0, sizeof(buf));
+socklen_t len = sizeof(addr);
 
-    bytes = recvfrom(recvSocket, &buf, sizeof(buf), 0, (struct sockaddr*)&addr, &len);
-    if (bytes > 0)
-        {
-        struct IP_HDR * ip = (struct IP_HDR *)buf;
-        struct ICMP_HDR *icmp = (struct ICMP_HDR *)(buf + ip->ihl * 4);
+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;
+    if (icmp->un.echo.id != pid)
+        return 0;
 
-        ipAddr = *(uint32_t*)(buf + sizeof(ICMP_HDR) + ip->ihl * 4);
-        }
+    ipAddr = *static_cast<uint32_t*>(static_cast<void *>(buf + sizeof(ICMP_HDR) + ip->ihl * 4));
+    }
 
-    return ipAddr;
+return ipAddr;
 }
 //-----------------------------------------------------------------------------
 void * STG_PINGER::RunSendPing(void * d)
 {
-    STG_PINGER * pinger = static_cast<STG_PINGER *>(d);
+sigset_t signalSet;
+sigfillset(&signalSet);
+pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
 
-    pinger->isRunningSender = true;
-    time_t lastPing = 0;
-    while (pinger->nonstop)
+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->RealAddIP();
-        pinger->RealDelIP();
+        pinger->SendPing(iter->first);
+        ++iter;
+        }
 
-        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;
 
-        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
-        lastPing = stgTime;
         currTime = stgTime;
         #else
-        currTime = lastPing = time(NULL);
+        currTime = time(NULL);
         #endif
-
-        while (currTime - lastPing < pinger->delay && pinger->nonstop)
-            {
-            #ifdef STG_TIME
-            currTime = stgTime;
-            #else
-            currTime = time(NULL);
-            #endif
-            usleep(20000);
-            }
+        struct timespec ts = {0, 20000000};
+        nanosleep(&ts, NULL);
         }
+    }
 
-    pinger->isRunningSender = false;
+pinger->isRunningSender = false;
 
-    return NULL;
+return NULL;
 }
 //-----------------------------------------------------------------------------
 void * STG_PINGER::RunRecvPing(void * d)
 {
-    STG_PINGER * pinger = static_cast<STG_PINGER *>(d);
+sigset_t signalSet;
+sigfillset(&signalSet);
+pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
 
-    pinger->isRunningRecver = true;
+STG_PINGER * pinger = static_cast<STG_PINGER *>(d);
 
-    while (pinger->nonstop)
-        {
-        uint32_t ip = pinger->RecvPing();
+pinger->isRunningRecver = true;
+
+while (pinger->nonstop)
+    {
+    uint32_t ip = pinger->RecvPing();
 
-        if (ip)
+    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)
             {
-            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;
-                }
+            #ifdef STG_TIME
+            treeIterLower->second = stgTime;
+            #else
+            treeIterLower->second = time(NULL);
+            #endif
+            ++treeIterLower;
             }
-
         }
-    pinger->isRunningRecver = false;
-    return NULL;
+
+    }
+pinger->isRunningRecver = false;
+return NULL;
 }
 //-----------------------------------------------------------------------------