void/ZeroTierOne
2
0
Fork 0
mirror of https://github.com/zerotier/ZeroTierOne.git synced 2025-06-05 12:03:44 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Try pipelining tap reads on Linux for a little more speed.

Browse source
This commit is contained in:
Adam Ierymenko 2020-11-16 18:56:00 -05:00
parent 31d8758ad9
commit dc806dd718
No known key found for this signature in database
GPG key ID: C8877CF2D7A5D7F3
2 changed files with 22 additions and 22 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
node/Network.cpp
View file

@ -40,7 +40,7 @@ namespace ZeroTier {
namespace {
// Returns true if packet appears valid; pos and proto will be set
static bool _ipv6GetPayload(const uint8_t *frameData,unsigned int frameLen,unsigned int &pos,unsigned int &proto)
static inline bool _ipv6GetPayload(const uint8_t *frameData,unsigned int frameLen,unsigned int &pos,unsigned int &proto)
{
if (frameLen < 40)
return false;

6
osdep/LinuxEthernetTap.cpp
View file

@ -173,9 +173,8 @@ LinuxEthernetTap::LinuxEthernetTap(
::ioctl(_fd,TUNSETPERSIST,0); // valgrind may generate a false alarm here
_dev = ifr.ifr_name;
// Set close-on-exec so that devices cannot persist if we fork/exec for update
::fcntl(_fd,F_SETFD,fcntl(_fd,F_GETFD) | FD_CLOEXEC);
::fcntl(_fd,F_SETFL,O_NONBLOCK);
(void)::pipe(_shutdownSignalPipe);
@ -474,9 +473,9 @@ void LinuxEthernetTap::threadMain()
break;
if (FD_ISSET(_fd,&readfds)) {
for(int x=0;x<64;++x) {
n = (int)::read(_fd,getBuf + r,sizeof(getBuf) - r);
if (n < 0) {
if ((errno != EINTR)&&(errno != ETIMEDOUT))
break;
} else {
// Some tap drivers like to send the ethernet frame and the
@ -500,6 +499,7 @@ void LinuxEthernetTap::threadMain()
}
}
}
}
}
} // namespace ZeroTier