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devpnc.h: disable Nagle to decrease latency

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This commit is contained in:
Jim
2020-02-25 13:46:44 -05:00
parent a4cc429fad
commit aac96b62c2
1 changed files with 10 additions and 5 deletions
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15
devpnc.h
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@@ -388,15 +388,20 @@ unsigned short pncdisc(nodeid) {
void pncinitfd(int fd) {
int optval, fdflags;
optval = 1;
if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &optval, sizeof(optval))) {
perror("setsockopt TCP_NODELAY failed for PNC");
fatal(NULL);
}
#ifdef __APPLE__
optval = MAXPKTBYTES;
if (setsockopt(fd, SOL_SOCKET, SO_SNDLOWAT, &optval, sizeof(optval))) {
perror("setsockopt 2 failed for PNC");
perror("setsockopt SO_SNDLOWAT failed for PNC");
fatal(NULL);
}
if (setsockopt(fd, SOL_SOCKET, SO_NOSIGPIPE, &optval, sizeof(optval))) {
perror("setsockopt 3 failed for PNC");
perror("setsockopt SO_NOSIGPIPE failed for PNC");
fatal(NULL);
}
#endif
@@ -962,12 +967,12 @@ int devpnc (int class, int func, int device) {
pncinitfd(pncfd);
optval = 1;
if (setsockopt(pncfd, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval))) {
perror("setsockopt failed for PNC listen");
perror("setsockopt SO_REUSEADDR failed for PNC listen");
fatal(NULL);
}
#ifdef __APPLE__
if (setsockopt(pncfd, SOL_SOCKET, SO_NOSIGPIPE, &optval, sizeof(optval))) {
perror("setsockopt 1 failed for PNC");
perror("setsockopt SO_NOSIGPIPE failed for PNC");
fatal(NULL);
}
#endif