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This commit is contained in:
Adam Ierymenko 2020-11-16 21:49:51 -05:00
parent 2da162bed7
commit 101a3a7d74
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GPG Key ID: C8877CF2D7A5D7F3
2 changed files with 26 additions and 20 deletions
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44
osdep/LinuxEthernetTap.cpp
View File

@ -292,36 +292,42 @@ LinuxEthernetTap::LinuxEthernetTap(
}
});
_tapProcessorThread = std::thread([this] {
MAC to,from;
std::pair<void *,int> qi;
while (_tapq.get(qi)) {
uint8_t *const b = reinterpret_cast<uint8_t *>(qi.first);
if (b) {
to.setTo(b, 6);
from.setTo(b + 6, 6);
unsigned int etherType = Utils::ntoh(((const uint16_t *)b)[6]);
_handler(_arg, nullptr, _nwid, from, to, etherType, 0, (const void *)(b + 14),(unsigned int)(qi.second - 14));
{
std::lock_guard<std::mutex> l(_buffers_l);
_buffers.push_back(qi.first);
}
} else break;
}
});
for(int k=0;k<2;++k) {
_tapProcessorThread[k] = std::thread([this] {
MAC to,from;
std::pair<void *,int> qi;
while (_tapq.get(qi)) {
uint8_t *const b = reinterpret_cast<uint8_t *>(qi.first);
if (b) {
to.setTo(b, 6);
from.setTo(b + 6, 6);
unsigned int etherType = Utils::ntoh(((const uint16_t *)b)[6]);
_handler(_arg, nullptr, _nwid, from, to, etherType, 0, (const void *)(b + 14),(unsigned int)(qi.second - 14));
{
std::lock_guard<std::mutex> l(_buffers_l);
_buffers.push_back(qi.first);
}
} else break;
}
});
}
}
LinuxEthernetTap::~LinuxEthernetTap()
{
(void)::write(_shutdownSignalPipe[1],"\0",1); // causes thread to exit
_tapq.post(std::pair<void *,int>(nullptr,0));
for(int k=0;k<64;++k) {
_tapq.post(std::pair<void *,int>(nullptr,0));
}
::close(_fd);
::close(_shutdownSignalPipe[0]);
::close(_shutdownSignalPipe[1]);
_tapReaderThread.join();
_tapProcessorThread.join();
for(int k=0;k<2;++k) {
_tapProcessorThread[k].join();
}
for(std::vector<void *>::iterator i(_buffers.begin());i!=_buffers.end();++i)
free(*i);

2
osdep/LinuxEthernetTap.hpp
View File

@ -71,7 +71,7 @@ private:
int _shutdownSignalPipe[2];
std::atomic_bool _enabled;
std::thread _tapReaderThread;
std::thread _tapProcessorThread;
std::thread _tapProcessorThread[2];
std::mutex _buffers_l;
std::vector<void *> _buffers;
BlockingQueue< std::pair<void *,int> > _tapq;