X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/ede91934442fd804d7b818971a44e3ad795cb01f..e982ee10a3a88a2cb6f623a3f12b1b428df9879c:/projects/stargazer/plugins/other/rscript/rscript.cpp diff --git a/projects/stargazer/plugins/other/rscript/rscript.cpp b/projects/stargazer/plugins/other/rscript/rscript.cpp index 1cc7883b..00114df4 100644 --- a/projects/stargazer/plugins/other/rscript/rscript.cpp +++ b/projects/stargazer/plugins/other/rscript/rscript.cpp @@ -19,56 +19,48 @@ * Author : Maxim Mamontov */ -/* - $Revision: 1.33 $ - $Date: 2010/04/16 12:30:37 $ - $Author: faust $ -*/ - #include #include #include +#include +#include +#include #include +#include "stg/common.h" +#include "stg/locker.h" +#include "stg/users.h" +#include "stg/user_property.h" +#include "stg/plugin_creator.h" +#include "stg/logger.h" #include "rscript.h" -#include "common.h" #include "ur_functor.h" #include "send_functor.h" -#include "stg_locker.h" -#include "../../../user_property.h" -extern volatile const time_t stgTime; +extern volatile time_t stgTime; -#define RS_MAX_ROUTERS (100) +using RS::REMOTE_SCRIPT; -//----------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -//----------------------------------------------------------------------------- -class RS_CREATOR -{ -private: - REMOTE_SCRIPT * rs; +namespace { -public: - RS_CREATOR() - : rs(new REMOTE_SCRIPT()) - { - }; - ~RS_CREATOR() - { - delete rs; - }; +template +struct USER_IS +{ + USER_IS(USER_PTR u) : user(u) {} + bool operator()(const T & notifier) { return notifier.GetUser() == user; } - REMOTE_SCRIPT * GetPlugin() - { - return rs; - }; + USER_PTR user; }; + +PLUGIN_CREATOR rsc; + +} // namespace anonymous + +extern "C" PLUGIN * GetPlugin(); //----------------------------------------------------------------------------- //----------------------------------------------------------------------------- //----------------------------------------------------------------------------- -RS_CREATOR rsc; //----------------------------------------------------------------------------- //----------------------------------------------------------------------------- //----------------------------------------------------------------------------- @@ -79,46 +71,22 @@ return rsc.GetPlugin(); //----------------------------------------------------------------------------- //----------------------------------------------------------------------------- //----------------------------------------------------------------------------- -RS_USER::RS_USER() - : lastSentTime(0), - shortPacketsCount(0) -{ -} -//----------------------------------------------------------------------------- -RS_USER::RS_USER(const std::vector & r, USER_PTR it) - : lastSentTime(0), - user(it), - routers(r), - shortPacketsCount(0) -{ -} -//----------------------------------------------------------------------------- -RS_SETTINGS::RS_SETTINGS() +RS::SETTINGS::SETTINGS() : sendPeriod(0), - port(0) + port(0), + errorStr(), + netRouters(), + userParams(), + password(), + subnetFile() { } //----------------------------------------------------------------------------- -int RS_SETTINGS::ParseIntInRange(const string & str, int min, int max, int * val) -{ -if (str2x(str.c_str(), *val)) - { - errorStr = "Incorrect value \'" + str + "\'."; - return -1; - } -if (*val < min || *val > max) - { - errorStr = "Value \'" + str + "\' out of range."; - return -1; - } -return 0; -} -//----------------------------------------------------------------------------- -int RS_SETTINGS::ParseSettings(const MODULE_SETTINGS & s) +int RS::SETTINGS::ParseSettings(const MODULE_SETTINGS & s) { int p; PARAM_VALUE pv; -vector::const_iterator pvi; +std::vector::const_iterator pvi; netRouters.clear(); /////////////////////////// pv.param = "Port"; @@ -135,7 +103,7 @@ if (ParseIntInRange(pvi->value[0], 2, 65535, &p)) printfd(__FILE__, "Cannot parse parameter 'Port'\n"); return -1; } -port = p; +port = static_cast(p); /////////////////////////// pv.param = "SendPeriod"; pvi = find(s.moduleParams.begin(), s.moduleParams.end(), pv); @@ -185,19 +153,13 @@ subnetFile = pvi->value[0]; NRMapParser nrMapParser; -if (nrMapParser.ReadFile(subnetFile)) +if (!nrMapParser.ReadFile(subnetFile)) { - errorStr = nrMapParser.GetErrorStr(); - return -1; + netRouters = nrMapParser.GetMap(); } - -netRouters = nrMapParser.GetMap(); - -if (netRouters.empty()) +else { - errorStr = "Parameter(s) \'Subnet*\' not found."; - printfd(__FILE__, "Parameter(s) 'Subnet*' not found\n"); - return -1; + GetStgLogger()("mod_rscript: error opening subnets file '%s'", subnetFile.c_str()); } return 0; @@ -206,14 +168,25 @@ return 0; //----------------------------------------------------------------------------- //----------------------------------------------------------------------------- REMOTE_SCRIPT::REMOTE_SCRIPT() - : sendPeriod(15), + : ctx(), + ipNotifierList(), + connNotifierList(), + authorizedUsers(), + errorStr(), + rsSettings(), + settings(), + sendPeriod(15), halfPeriod(8), nonstop(false), isRunning(false), users(NULL), + netRouters(), + thread(), + mutex(), sock(0), onAddUserNotifier(*this), - onDelUserNotifier(*this) + onDelUserNotifier(*this), + logger(GetPluginLogger(GetStgLogger(), "rscript")) { pthread_mutex_init(&mutex, NULL); } @@ -225,6 +198,10 @@ pthread_mutex_destroy(&mutex); //----------------------------------------------------------------------------- void * REMOTE_SCRIPT::Run(void * d) { +sigset_t signalSet; +sigfillset(&signalSet); +pthread_sigmask(SIG_BLOCK, &signalSet, NULL); + REMOTE_SCRIPT * rs = static_cast(d); rs->isRunning = true; @@ -257,9 +234,6 @@ netRouters = rsSettings.GetSubnetsMap(); InitEncrypt(&ctx, rsSettings.GetPassword()); -//onAddUserNotifier.SetRemoteScript(this); -//onDelUserNotifier.SetRemoteScript(this); - users->AddNotifierUserAdd(&onAddUserNotifier); users->AddNotifierUserDel(&onDelUserNotifier); @@ -280,6 +254,7 @@ if (!isRunning) if (pthread_create(&thread, NULL, Run, this)) { errorStr = "Cannot create thread."; + logger("Cannot create thread."); printfd(__FILE__, "Cannot create thread\n"); return -1; } @@ -309,25 +284,20 @@ if (isRunning) //5 seconds to thread stops itself for (int i = 0; i < 25 && isRunning; i++) { - usleep(200000); - } - - //after 5 seconds waiting thread still running. now killing it - if (isRunning) - { - if (pthread_kill(thread, SIGINT)) - { - errorStr = "Cannot kill thread."; - printfd(__FILE__, "Cannot kill thread\n"); - return -1; - } - printfd(__FILE__, "REMOTE_SCRIPT killed Run\n"); + struct timespec ts = {0, 200000000}; + nanosleep(&ts, NULL); } } users->DelNotifierUserDel(&onDelUserNotifier); users->DelNotifierUserAdd(&onAddUserNotifier); +if (isRunning) + { + logger("Cannot stop thread."); + return -1; + } + return 0; } //----------------------------------------------------------------------------- @@ -338,11 +308,12 @@ NRMapParser nrMapParser; if (nrMapParser.ReadFile(rsSettings.GetMapFileName())) { errorStr = nrMapParser.GetErrorStr(); + logger("Map file reading error: %s", errorStr.c_str()); return -1; } { - STG_LOCKER lock(&mutex, __FILE__, __LINE__); + STG_LOCKER lock(&mutex); printfd(__FILE__, "REMOTE_SCRIPT::Reload()\n"); @@ -353,6 +324,9 @@ std::for_each(authorizedUsers.begin(), authorizedUsers.end(), UpdateRouter(*this)); +logger("%s reloaded successfully.", rsSettings.GetMapFileName().c_str()); +printfd(__FILE__, "REMOTE_SCRIPT::Reload() %s reloaded successfully.\n"); + return 0; } //----------------------------------------------------------------------------- @@ -363,6 +337,7 @@ sock = socket(AF_INET, SOCK_DGRAM, 0); if (sock < 0) { errorStr = "Cannot create socket."; + logger("Canot create a socket: %s", strerror(errno)); printfd(__FILE__, "Cannot create socket\n"); return true; } @@ -378,23 +353,26 @@ return false; //----------------------------------------------------------------------------- void REMOTE_SCRIPT::PeriodicSend() { -STG_LOCKER lock(&mutex, __FILE__, __LINE__); +STG_LOCKER lock(&mutex); -map::iterator it(authorizedUsers.begin()); +std::map::iterator it(authorizedUsers.begin()); while (it != authorizedUsers.end()) { if (difftime(stgTime, it->second.lastSentTime) - (rand() % halfPeriod) > sendPeriod) - //if (stgTime - it->second.lastSentTime > sendPeriod) { - Send(it->first, it->second); + Send(it->second); } ++it; } } //----------------------------------------------------------------------------- -bool REMOTE_SCRIPT::PreparePacket(char * buf, size_t bufSize, uint32_t ip, RS_USER & rsu, bool forceDisconnect) const +#ifdef NDEBUG +bool REMOTE_SCRIPT::PreparePacket(char * buf, size_t, RS::USER & rsu, bool forceDisconnect) const +#else +bool REMOTE_SCRIPT::PreparePacket(char * buf, size_t bufSize, RS::USER & rsu, bool forceDisconnect) const +#endif { -RS_PACKET_HEADER packetHead; +RS::PACKET_HEADER packetHead; memset(packetHead.padding, 0, sizeof(packetHead.padding)); strcpy((char*)packetHead.magic, RS_ID); @@ -403,6 +381,7 @@ packetHead.protoVer[1] = '2'; if (forceDisconnect) { packetHead.packetType = RS_DISCONNECT_PACKET; + printfd(__FILE__, "RSCRIPT: force disconnect for '%s'\n", rsu.user->GetLogin().c_str()); } else { @@ -410,17 +389,25 @@ else { //SendLong packetHead.packetType = rsu.user->IsInetable() ? RS_CONNECT_PACKET : RS_DISCONNECT_PACKET; + if (rsu.user->IsInetable()) + printfd(__FILE__, "RSCRIPT: connect for '%s'\n", rsu.user->GetLogin().c_str()); + else + printfd(__FILE__, "RSCRIPT: disconnect for '%s'\n", rsu.user->GetLogin().c_str()); } else { //SendShort packetHead.packetType = rsu.user->IsInetable() ? RS_ALIVE_PACKET : RS_DISCONNECT_PACKET; + if (rsu.user->IsInetable()) + printfd(__FILE__, "RSCRIPT: alive for '%s'\n", rsu.user->GetLogin().c_str()); + else + printfd(__FILE__, "RSCRIPT: disconnect for '%s'\n", rsu.user->GetLogin().c_str()); } } rsu.shortPacketsCount++; rsu.lastSentTime = stgTime; -packetHead.ip = htonl(ip); +packetHead.ip = htonl(rsu.ip); packetHead.id = htonl(rsu.user->GetID()); strncpy((char*)packetHead.login, rsu.user->GetLogin().c_str(), RS_LOGIN_LEN); packetHead.login[RS_LOGIN_LEN - 1] = 0; @@ -432,19 +419,22 @@ if (packetHead.packetType == RS_ALIVE_PACKET) return false; } -RS_PACKET_TAIL packetTail; +RS::PACKET_TAIL packetTail; memset(packetTail.padding, 0, sizeof(packetTail.padding)); strcpy((char*)packetTail.magic, RS_ID); -vector::const_iterator it; +std::vector::const_iterator it; std::string params; for(it = rsSettings.GetUserParams().begin(); it != rsSettings.GetUserParams().end(); ++it) { - std::string parameter(GetUserParam(rsu.user, *it)); + std::string parameter(rsu.user->GetParamValue(it->c_str())); if (params.length() + parameter.length() > RS_PARAMS_LEN - 1) + { + logger("Script params string length %d exceeds the limit of %d symbols.", params.length() + parameter.length(), RS_PARAMS_LEN); break; + } params += parameter + " "; } strncpy((char *)packetTail.params, params.c_str(), RS_PARAMS_LEN); @@ -457,13 +447,13 @@ Encrypt(&ctx, buf + sizeof(packetHead), (char *)&packetTail, sizeof(packetTail) return false; } //----------------------------------------------------------------------------- -bool REMOTE_SCRIPT::Send(uint32_t ip, RS_USER & rsu, bool forceDisconnect) const +bool REMOTE_SCRIPT::Send(RS::USER & rsu, bool forceDisconnect) const { char buffer[RS_MAX_PACKET_LEN]; memset(buffer, 0, sizeof(buffer)); -if (PreparePacket(buffer, sizeof(buffer), ip, rsu, forceDisconnect)) +if (PreparePacket(buffer, sizeof(buffer), rsu, forceDisconnect)) { printfd(__FILE__, "REMOTE_SCRIPT::Send() - Invalid packet length!\n"); return true; @@ -472,17 +462,17 @@ if (PreparePacket(buffer, sizeof(buffer), ip, rsu, forceDisconnect)) std::for_each( rsu.routers.begin(), rsu.routers.end(), - PacketSender(sock, buffer, sizeof(buffer), htons(rsSettings.GetPort())) + PacketSender(sock, buffer, sizeof(buffer), static_cast(htons(rsSettings.GetPort()))) ); return false; } //----------------------------------------------------------------------------- -bool REMOTE_SCRIPT::SendDirect(uint32_t ip, RS_USER & rsu, uint32_t routerIP, bool forceDisconnect) const +bool REMOTE_SCRIPT::SendDirect(RS::USER & rsu, uint32_t routerIP, bool forceDisconnect) const { char buffer[RS_MAX_PACKET_LEN]; -if (PreparePacket(buffer, sizeof(buffer), ip, rsu, forceDisconnect)) +if (PreparePacket(buffer, sizeof(buffer), rsu, forceDisconnect)) { printfd(__FILE__, "REMOTE_SCRIPT::SendDirect() - Invalid packet length!\n"); return true; @@ -491,10 +481,13 @@ if (PreparePacket(buffer, sizeof(buffer), ip, rsu, forceDisconnect)) struct sockaddr_in sendAddr; sendAddr.sin_family = AF_INET; -sendAddr.sin_port = htons(rsSettings.GetPort()); +sendAddr.sin_port = static_cast(htons(rsSettings.GetPort())); sendAddr.sin_addr.s_addr = routerIP; -int res = sendto(sock, buffer, sizeof(buffer), 0, (struct sockaddr *)&sendAddr, sizeof(sendAddr)); +ssize_t res = sendto(sock, buffer, sizeof(buffer), 0, (struct sockaddr *)&sendAddr, sizeof(sendAddr)); + +if (res < 0) + logger("sendto error: %s", strerror(errno)); return (res != sizeof(buffer)); } @@ -504,54 +497,20 @@ bool REMOTE_SCRIPT::GetUsers() USER_PTR u; int h = users->OpenSearch(); -if (!h) - { - errorStr = "users->OpenSearch() error."; - printfd(__FILE__, "OpenSearch() error\n"); - return true; - } +assert(h && "USERS::OpenSearch is always correct"); while (!users->SearchNext(h, &u)) { - SetUserNotifier(u); + SetUserNotifiers(u); } users->CloseSearch(h); return false; } //----------------------------------------------------------------------------- -void REMOTE_SCRIPT::ChangedIP(USER_PTR u, uint32_t oldIP, uint32_t newIP) -{ -/* - * When ip changes process looks like: - * old => 0, 0 => new - * - */ -if (newIP) - { - RS_USER rsu(IP2Routers(newIP), u); - Send(newIP, rsu); - - STG_LOCKER lock(&mutex, __FILE__, __LINE__); - authorizedUsers[newIP] = rsu; - } -else - { - STG_LOCKER lock(&mutex, __FILE__, __LINE__); - const map::iterator it( - authorizedUsers.find(oldIP) - ); - if (it != authorizedUsers.end()) - { - Send(oldIP, it->second, true); - authorizedUsers.erase(it); - } - } -} -//----------------------------------------------------------------------------- std::vector REMOTE_SCRIPT::IP2Routers(uint32_t ip) { -STG_LOCKER lock(&mutex, __FILE__, __LINE__); +STG_LOCKER lock(&mutex); for (size_t i = 0; i < netRouters.size(); ++i) { if ((ip & netRouters[i].subnetMask) == (netRouters[i].subnetIP & netRouters[i].subnetMask)) @@ -562,124 +521,75 @@ for (size_t i = 0; i < netRouters.size(); ++i) return std::vector(); } //----------------------------------------------------------------------------- -string REMOTE_SCRIPT::GetUserParam(USER_PTR u, const string & paramName) const +void REMOTE_SCRIPT::SetUserNotifiers(USER_PTR u) { -string value = ""; -if (strcasecmp(paramName.c_str(), "cash") == 0) - strprintf(&value, "%f", u->GetProperty().cash.Get()); -else -if (strcasecmp(paramName.c_str(), "freeMb") == 0) - strprintf(&value, "%f", u->GetProperty().freeMb.Get()); -else -if (strcasecmp(paramName.c_str(), "passive") == 0) - strprintf(&value, "%d", u->GetProperty().passive.Get()); -else -if (strcasecmp(paramName.c_str(), "disabled") == 0) - strprintf(&value, "%d", u->GetProperty().disabled.Get()); -else -if (strcasecmp(paramName.c_str(), "alwaysOnline") == 0) - strprintf(&value, "%d", u->GetProperty().alwaysOnline.Get()); -else -if (strcasecmp(paramName.c_str(), "tariffName") == 0 || - strcasecmp(paramName.c_str(), "tariff") == 0) - value = "\"" + u->GetProperty().tariffName.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "nextTariff") == 0) - value = "\"" + u->GetProperty().nextTariff.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "address") == 0) - value = "\"" + u->GetProperty().address.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "note") == 0) - value = "\"" + u->GetProperty().note.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "group") == 0) - value = "\"" + u->GetProperty().group.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "email") == 0) - value = "\"" + u->GetProperty().email.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "realName") == 0) - value = "\"" + u->GetProperty().realName.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "credit") == 0) - strprintf(&value, "%f", u->GetProperty().credit.Get()); -else -if (strcasecmp(paramName.c_str(), "userdata0") == 0) - value = "\"" + u->GetProperty().userdata0.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "userdata1") == 0) - value = "\"" + u->GetProperty().userdata1.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "userdata2") == 0) - value = "\"" + u->GetProperty().userdata2.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "userdata3") == 0) - value = "\"" + u->GetProperty().userdata3.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "userdata4") == 0) - value = "\"" + u->GetProperty().userdata4.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "userdata5") == 0) - value = "\"" + u->GetProperty().userdata5.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "userdata6") == 0) - value = "\"" + u->GetProperty().userdata6.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "userdata7") == 0) - value = "\"" + u->GetProperty().userdata7.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "userdata8") == 0) - value = "\"" + u->GetProperty().userdata8.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "userdata9") == 0) - value = "\"" + u->GetProperty().userdata9.Get() + "\""; -else -if (strcasecmp(paramName.c_str(), "enabledDirs") == 0) - value = u->GetEnabledDirs(); -else - printfd(__FILE__, "Unknown value name: %s\n", paramName.c_str()); -return value; +ipNotifierList.push_front(RS::IP_NOTIFIER(*this, u)); +connNotifierList.push_front(RS::CONNECTED_NOTIFIER(*this, u)); } //----------------------------------------------------------------------------- -void REMOTE_SCRIPT::SetUserNotifier(USER_PTR u) +void REMOTE_SCRIPT::UnSetUserNotifiers(USER_PTR u) { -RS_CHG_AFTER_NOTIFIER afterChgIPNotifier(*this, u); +ipNotifierList.erase(std::remove_if(ipNotifierList.begin(), + ipNotifierList.end(), + USER_IS(u)), + ipNotifierList.end()); +connNotifierList.erase(std::remove_if(connNotifierList.begin(), + connNotifierList.end(), + USER_IS(u)), + connNotifierList.end()); -afterChgIPNotifierList.push_front(afterChgIPNotifier); - -u->AddCurrIPAfterNotifier(&(*afterChgIPNotifierList.begin())); } //----------------------------------------------------------------------------- -void REMOTE_SCRIPT::UnSetUserNotifier(USER_PTR u) +void REMOTE_SCRIPT::AddRSU(USER_PTR user) { -list >::iterator ipAIter; -std::list >::iterator> toErase; +RS::USER rsu(IP2Routers(user->GetCurrIP()), user); +Send(rsu); -for (ipAIter = afterChgIPNotifierList.begin(); ipAIter != afterChgIPNotifierList.end(); ++ipAIter) +STG_LOCKER lock(&mutex); +authorizedUsers.insert(std::make_pair(user->GetCurrIP(), rsu)); +} +//----------------------------------------------------------------------------- +void REMOTE_SCRIPT::DelRSU(USER_PTR user) +{ +STG_LOCKER lock(&mutex); +std::map::iterator it(authorizedUsers.begin()); +while (it != authorizedUsers.end()) { - if (ipAIter->GetUser() == u) + if (it->second.user == user) { - u->DelCurrIPAfterNotifier(&(*ipAIter)); - toErase.push_back(ipAIter); + Send(it->second, true); + authorizedUsers.erase(it); + return; } + ++it; } - -std::list >::iterator>::iterator eIter; - -for (eIter = toErase.begin(); eIter != toErase.end(); ++eIter) +/*const std::map::iterator it( + authorizedUsers.find(user->GetCurrIP()) + ); +if (it != authorizedUsers.end()) { - afterChgIPNotifierList.erase(*eIter); - } + Send(it->second, true); + authorizedUsers.erase(it); + }*/ +} +//----------------------------------------------------------------------------- +void RS::IP_NOTIFIER::Notify(const uint32_t & /*oldValue*/, const uint32_t & newValue) +{ +if (newValue) + rs.AddRSU(user); +else + rs.DelRSU(user); } //----------------------------------------------------------------------------- -template -void RS_CHG_AFTER_NOTIFIER::Notify(const varParamType & oldValue, const varParamType & newValue) +void RS::CONNECTED_NOTIFIER::Notify(const bool & /*oldValue*/, const bool & newValue) { -rs.ChangedIP(user, oldValue, newValue); +if (newValue) + rs.AddRSU(user); +else + rs.DelRSU(user); } //----------------------------------------------------------------------------- -void REMOTE_SCRIPT::InitEncrypt(BLOWFISH_CTX * ctx, const string & password) const +void REMOTE_SCRIPT::InitEncrypt(BLOWFISH_CTX * ctx, const std::string & password) const { unsigned char keyL[PASSWD_LEN]; // Пароль для шифровки memset(keyL, 0, PASSWD_LEN); @@ -687,11 +597,11 @@ strncpy((char *)keyL, password.c_str(), PASSWD_LEN); Blowfish_Init(ctx, keyL, PASSWD_LEN); } //----------------------------------------------------------------------------- -void REMOTE_SCRIPT::Encrypt(BLOWFISH_CTX * ctx, char * dst, const char * src, size_t len8) const +void REMOTE_SCRIPT::Encrypt(BLOWFISH_CTX * ctx, void * dst, const void * src, size_t len8) const { if (dst != src) memcpy(dst, src, len8 * 8); for (size_t i = 0; i < len8; ++i) - Blowfish_Encrypt(ctx, (uint32_t *)(dst + i * 8), (uint32_t *)(dst + i * 8 + 4)); + Blowfish_Encrypt(ctx, static_cast(dst) + i * 2, static_cast(dst) + i * 2 + 1); } //-----------------------------------------------------------------------------