/*****************************************************************************
Copyright (c) 2001 - 2009, The Board of Trustees of the University of Illinois.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above
copyright notice, this list of conditions and the
following disclaimer.
* Redistributions in binary form must reproduce the
above copyright notice, this list of conditions
and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name of the University of Illinois
nor the names of its contributors may be used to
endorse or promote products derived from this
software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
/*****************************************************************************
written by
Yunhong Gu, last updated 08/15/2009
*****************************************************************************/
#ifndef WIN32
#include <cstring>
#include <cerrno>
#else
#include <winsock2.h>
#include <ws2tcpip.h>
#ifdef LEGACY_WIN32
#include <wspiapi.h>
#endif
#endif
#include <cmath>
#include "md5.h"
#include "common.h"
uint64_t CTimer::s_ullCPUFrequency = CTimer::readCPUFrequency();
#ifndef WIN32
pthread_mutex_t CTimer::m_EventLock = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t CTimer::m_EventCond = PTHREAD_COND_INITIALIZER;
#else
pthread_mutex_t CTimer::m_EventLock = CreateMutex(NULL, false, NULL);
pthread_cond_t CTimer::m_EventCond = CreateEvent(NULL, false, false, NULL);
#endif
CTimer::CTimer():
m_ullSchedTime(),
m_TickCond(),
m_TickLock()
{
#ifndef WIN32
pthread_mutex_init(&m_TickLock, NULL);
pthread_cond_init(&m_TickCond, NULL);
#else
m_TickLock = CreateMutex(NULL, false, NULL);
m_TickCond = CreateEvent(NULL, false, false, NULL);
#endif
}
CTimer::~CTimer()
{
#ifndef WIN32
pthread_mutex_destroy(&m_TickLock);
pthread_cond_destroy(&m_TickCond);
#else
CloseHandle(m_TickLock);
CloseHandle(m_TickCond);
#endif
}
void CTimer::rdtsc(uint64_t &x)
{
#ifdef WIN32
//HANDLE hCurThread = ::GetCurrentThread();
//DWORD_PTR dwOldMask = ::SetThreadAffinityMask(hCurThread, 1);
BOOL ret = QueryPerformanceCounter((LARGE_INTEGER *)&x);
//SetThreadAffinityMask(hCurThread, dwOldMask);
if (!ret)
x = getTime() * s_ullCPUFrequency;
#elif IA32
uint32_t lval, hval;
//asm volatile ("push %eax; push %ebx; push %ecx; push %edx");
//asm volatile ("xor %eax, %eax; cpuid");
asm volatile ("rdtsc" : "=a" (lval), "=d" (hval));
//asm volatile ("pop %edx; pop %ecx; pop %ebx; pop %eax");
x = hval;
x = (x << 32) | lval;
#elif IA64
asm ("mov %0=ar.itc" : "=r"(x) :: "memory");
#elif AMD64
uint32_t lval, hval;
asm ("rdtsc" : "=a" (lval), "=d" (hval));
x = hval;
x = (x << 32) | lval;
#else
// use system call to read time clock for other archs
timeval t;
gettimeofday(&t, 0);
x = (uint64_t)t.tv_sec * (uint64_t)1000000 + (uint64_t)t.tv_usec;
#endif
}
uint64_t CTimer::readCPUFrequency()
{
#ifdef WIN32
int64_t ccf;
if (QueryPerformanceFrequency((LARGE_INTEGER *)&ccf))
return ccf / 1000000;
else
return 1;
#elif IA32 || IA64 || AMD64
uint64_t t1, t2;
rdtsc(t1);
timespec ts;
ts.tv_sec = 0;
ts.tv_nsec = 100000000;
nanosleep(&ts, NULL);
rdtsc(t2);
// CPU clocks per microsecond
return (t2 - t1) / 100000;
#else
return 1;
#endif
}
uint64_t CTimer::getCPUFrequency()
{
return s_ullCPUFrequency;
}
void CTimer::sleep(const uint64_t& interval)
{
uint64_t t;
rdtsc(t);
// sleep next "interval" time
sleepto(t + interval);
}
void CTimer::sleepto(const uint64_t& nexttime)
{
// Use class member such that the method can be interrupted by others
m_ullSchedTime = nexttime;
uint64_t t;
rdtsc(t);
while (t < m_ullSchedTime)
{
#ifndef NO_BUSY_WAITING
#ifdef IA32
__asm__ volatile ("pause; rep; nop; nop; nop; nop; nop;");
#elif IA64
__asm__ volatile ("nop 0; nop 0; nop 0; nop 0; nop 0;");
#elif AMD64
__asm__ volatile ("nop; nop; nop; nop; nop;");
#endif
#else
#ifndef WIN32
timeval now;
timespec timeout;
gettimeofday(&now, 0);
if (now.tv_usec < 990000)
{
timeout.tv_sec = now.tv_sec;
timeout.tv_nsec = (now.tv_usec + 10000) * 1000;
}
else
{
timeout.tv_sec = now.tv_sec + 1;
timeout.tv_nsec = (now.tv_usec + 10000 - 1000000) * 1000;
}
pthread_mutex_lock(&m_TickLock);
pthread_cond_timedwait(&m_TickCond, &m_TickLock, &timeout);
pthread_mutex_unlock(&m_TickLock);
#else
WaitForSingleObject(m_TickCond, 1);
#endif
#endif
rdtsc(t);
}
}
void CTimer::interrupt()
{
// schedule the sleepto time to the current CCs, so that it will stop
rdtsc(m_ullSchedTime);
tick();
}
void CTimer::tick()
{
#ifndef WIN32
pthread_cond_signal(&m_TickCond);
#else
SetEvent(m_TickCond);
#endif
}
uint64_t CTimer::getTime()
{
#ifndef WIN32
timeval t;
gettimeofday(&t, 0);
return t.tv_sec * 1000000ULL + t.tv_usec;
#else
LARGE_INTEGER ccf;
HANDLE hCurThread = ::GetCurrentThread();
DWORD_PTR dwOldMask = ::SetThreadAffinityMask(hCurThread, 1);
if (QueryPerformanceFrequency(&ccf))
{
LARGE_INTEGER cc;
if (QueryPerformanceCounter(&cc))
{
SetThreadAffinityMask(hCurThread, dwOldMask);
return (cc.QuadPart * 1000000ULL / ccf.QuadPart);
}
}
SetThreadAffinityMask(hCurThread, dwOldMask);
return GetTickCount() * 1000ULL;
#endif
}
void CTimer::triggerEvent()
{
#ifndef WIN32
pthread_cond_signal(&m_EventCond);
#else
SetEvent(m_EventCond);
#endif
}
void CTimer::waitForEvent()
{
#ifndef WIN32
timeval now;
timespec timeout;
gettimeofday(&now, 0);
if (now.tv_usec < 990000)
{
timeout.tv_sec = now.tv_sec;
timeout.tv_nsec = (now.tv_usec + 10000) * 1000;
}
else
{
timeout.tv_sec = now.tv_sec + 1;
timeout.tv_nsec = (now.tv_usec + 10000 - 1000000) * 1000;
}
pthread_mutex_lock(&m_EventLock);
pthread_cond_timedwait(&m_EventCond, &m_EventLock, &timeout);
pthread_mutex_unlock(&m_EventLock);
#else
WaitForSingleObject(m_EventCond, 1);
#endif
}
//
// Automatically lock in constructor
CGuard::CGuard(pthread_mutex_t& lock):
m_Mutex(lock),
m_iLocked()
{
#ifndef WIN32
m_iLocked = pthread_mutex_lock(&m_Mutex);
#else
m_iLocked = WaitForSingleObject(m_Mutex, INFINITE);
#endif
}
// Automatically unlock in destructor
CGuard::~CGuard()
{
#ifndef WIN32
if (0 == m_iLocked)
pthread_mutex_unlock(&m_Mutex);
#else
if (WAIT_FAILED != m_iLocked)
ReleaseMutex(m_Mutex);
#endif
}
void CGuard::enterCS(pthread_mutex_t& lock)
{
#ifndef WIN32
pthread_mutex_lock(&lock);
#else
WaitForSingleObject(lock, INFINITE);
#endif
}
void CGuard::leaveCS(pthread_mutex_t& lock)
{
#ifndef WIN32
pthread_mutex_unlock(&lock);
#else
ReleaseMutex(lock);
#endif
}
//
CUDTException::CUDTException(int major, int minor, int err):
m_iMajor(major),
m_iMinor(minor)
{
if (-1 == err)
#ifndef WIN32
m_iErrno = errno;
#else
m_iErrno = GetLastError();
#endif
else
m_iErrno = err;
}
CUDTException::CUDTException(const CUDTException& e):
m_iMajor(e.m_iMajor),
m_iMinor(e.m_iMinor),
m_iErrno(e.m_iErrno),
m_strMsg()
{
}
CUDTException::~CUDTException()
{
}
const char* CUDTException::getErrorMessage()
{
// translate "Major:Minor" code into text message.
switch (m_iMajor)
{
case 0:
m_strMsg = "Success";
break;
case 1:
m_strMsg = "Connection setup failure";
switch (m_iMinor)
{
case 1:
m_strMsg += ": connection time out";
break;
case 2:
m_strMsg += ": connection rejected";
break;
case 3:
m_strMsg += ": unable to create/configure UDP socket";
break;
case 4:
m_strMsg += ": abort for security reasons";
break;
default:
break;
}
break;
case 2:
switch (m_iMinor)
{
case 1:
m_strMsg = "Connection was broken";
break;
case 2:
m_strMsg = "Connection does not exist";
break;
default:
break;
}
break;
case 3:
m_strMsg = "System resource failure";
switch (m_iMinor)
{
case 1:
m_strMsg += ": unable to create new threads";
break;
case 2:
m_strMsg += ": unable to allocate buffers";
break;
default:
break;
}
break;
case 4:
m_strMsg = "File system failure";
switch (m_iMinor)
{
case 1:
m_strMsg += ": cannot seek read position";
break;
case 2:
m_strMsg += ": failure in read";
break;
case 3:
m_strMsg += ": cannot seek write position";
break;
case 4:
m_strMsg += ": failure in write";
break;
default:
break;
}
break;
case 5:
m_strMsg = "Operation not supported";
switch (m_iMinor)
{
case 1:
m_strMsg += ": Cannot do this operation on a BOUND socket";
break;
case 2:
m_strMsg += ": Cannot do this operation on a CONNECTED socket";
break;
case 3:
m_strMsg += ": Bad parameters";
break;
case 4:
m_strMsg += ": Invalid socket ID";
break;
case 5:
m_strMsg += ": Cannot do this operation on an UNBOUND socket";
break;
case 6:
m_strMsg += ": Socket is not in listening state";
break;
case 7:
m_strMsg += ": Listen/accept is not supported in rendezous connection setup";
break;
case 8:
m_strMsg += ": Cannot call connect on UNBOUND socket in rendezvous connection setup";
break;
case 9:
m_strMsg += ": This operation is not supported in SOCK_STREAM mode";
break;
case 10:
m_strMsg += ": This operation is not supported in SOCK_DGRAM mode";
break;
case 11:
m_strMsg += ": Another socket is already listening on the same port";
break;
case 12:
m_strMsg += ": Message is too large to send (it must be less than the UDT send buffer size)";
break;
default:
break;
}
break;
case 6:
m_strMsg = "Non-blocking call failure";
switch (m_iMinor)
{
case 1:
m_strMsg += ": no buffer available for sending";
break;
case 2:
m_strMsg += ": no data available for reading";
break;
default:
break;
}
break;
default:
m_strMsg = "Unknown error";
}
// Adding "errno" information
if ((0 != m_iMajor) && (0 < m_iErrno))
{
m_strMsg += ": ";
#ifndef WIN32
m_strMsg += strerror(m_iErrno);
#else
LPVOID lpMsgBuf;
FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, m_iErrno, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&lpMsgBuf, 0, NULL);
m_strMsg += (char*)lpMsgBuf;
LocalFree(lpMsgBuf);
#endif
}
// period
#ifndef WIN32
m_strMsg += ".";
#endif
return m_strMsg.c_str();
}
const int CUDTException::getErrorCode() const
{
return m_iMajor * 1000 + m_iMinor;
}
void CUDTException::clear()
{
m_iMajor = 0;
m_iMinor = 0;
m_iErrno = 0;
}
const int CUDTException::SUCCESS = 0;
const int CUDTException::ECONNSETUP = 1000;
const int CUDTException::ENOSERVER = 1001;
const int CUDTException::ECONNREJ = 1002;
const int CUDTException::ESOCKFAIL = 1003;
const int CUDTException::ESECFAIL = 1004;
const int CUDTException::ECONNFAIL = 2000;
const int CUDTException::ECONNLOST = 2001;
const int CUDTException::ENOCONN = 2002;
const int CUDTException::ERESOURCE = 3000;
const int CUDTException::ETHREAD = 3001;
const int CUDTException::ENOBUF = 3002;
const int CUDTException::EFILE = 4000;
const int CUDTException::EINVRDOFF = 4001;
const int CUDTException::ERDPERM = 4002;
const int CUDTException::EINVWROFF = 4003;
const int CUDTException::EWRPERM = 4004;
const int CUDTException::EINVOP = 5000;
const int CUDTException::EBOUNDSOCK = 5001;
const int CUDTException::ECONNSOCK = 5002;
const int CUDTException::EINVPARAM = 5003;
const int CUDTException::EINVSOCK = 5004;
const int CUDTException::EUNBOUNDSOCK = 5005;
const int CUDTException::ENOLISTEN = 5006;
const int CUDTException::ERDVNOSERV = 5007;
const int CUDTException::ERDVUNBOUND = 5008;
const int CUDTException::ESTREAMILL = 5009;
const int CUDTException::EDGRAMILL = 5010;
const int CUDTException::EDUPLISTEN = 5011;
const int CUDTException::ELARGEMSG = 5012;
const int CUDTException::EASYNCFAIL = 6000;
const int CUDTException::EASYNCSND = 6001;
const int CUDTException::EASYNCRCV = 6002;
const int CUDTException::EUNKNOWN = -1;
//
bool CIPAddress::ipcmp(const sockaddr* addr1, const sockaddr* addr2, const int& ver)
{
if (AF_INET == ver)
{
sockaddr_in* a1 = (sockaddr_in*)addr1;
sockaddr_in* a2 = (sockaddr_in*)addr2;
if ((a1->sin_port == a2->sin_port) && (a1->sin_addr.s_addr == a2->sin_addr.s_addr))
return true;
}
else
{
sockaddr_in6* a1 = (sockaddr_in6*)addr1;
sockaddr_in6* a2 = (sockaddr_in6*)addr2;
if (a1->sin6_port == a2->sin6_port)
{
for (int i = 0; i < 16; ++ i)
if (*((char*)&(a1->sin6_addr) + i) != *((char*)&(a2->sin6_addr) + i))
return false;
return true;
}
}
return false;
}
void CIPAddress::ntop(const sockaddr* addr, uint32_t ip[4], const int& ver)
{
if (AF_INET == ver)
{
sockaddr_in* a = (sockaddr_in*)addr;
ip[0] = a->sin_addr.s_addr;
}
else
{
sockaddr_in6* a = (sockaddr_in6*)addr;
ip[3] = (a->sin6_addr.s6_addr[15] << 24) + (a->sin6_addr.s6_addr[14] << 16) + (a->sin6_addr.s6_addr[13] << 8) + a->sin6_addr.s6_addr[12];
ip[2] = (a->sin6_addr.s6_addr[11] << 24) + (a->sin6_addr.s6_addr[10] << 16) + (a->sin6_addr.s6_addr[9] << 8) + a->sin6_addr.s6_addr[8];
ip[1] = (a->sin6_addr.s6_addr[7] << 24) + (a->sin6_addr.s6_addr[6] << 16) + (a->sin6_addr.s6_addr[5] << 8) + a->sin6_addr.s6_addr[4];
ip[0] = (a->sin6_addr.s6_addr[3] << 24) + (a->sin6_addr.s6_addr[2] << 16) + (a->sin6_addr.s6_addr[1] << 8) + a->sin6_addr.s6_addr[0];
}
}
void CIPAddress::pton(sockaddr* addr, const uint32_t ip[4], const int& ver)
{
if (AF_INET == ver)
{
sockaddr_in* a = (sockaddr_in*)addr;
a->sin_addr.s_addr = ip[0];
}
else
{
sockaddr_in6* a = (sockaddr_in6*)addr;
for (int i = 0; i < 4; ++ i)
{
a->sin6_addr.s6_addr[i * 4] = ip[i] & 0xFF;
a->sin6_addr.s6_addr[i * 4 + 1] = (unsigned char)((ip[i] & 0xFF00) >> 8);
a->sin6_addr.s6_addr[i * 4 + 2] = (unsigned char)((ip[i] & 0xFF0000) >> 16);
a->sin6_addr.s6_addr[i * 4 + 3] = (unsigned char)((ip[i] & 0xFF000000) >> 24);
}
}
}
//
void CMD5::compute(const char* input, unsigned char result[16])
{
md5_state_t state;
md5_init(&state);
md5_append(&state, (const md5_byte_t *)input, strlen(input));
md5_finish(&state, result);
}