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Refactor out some duplicated code

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This commit is contained in:
Justine Tunney 2021-08-14 06:17:56 -07:00
parent e963d9c8e3
commit 579b597ded
58 changed files with 1110 additions and 3214 deletions
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59
libc/sock/goodsocket.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2021 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/struct/timeval.h"
#include "libc/sock/goodsocket.internal.h"
#include "libc/sock/sock.h"
#include "libc/sysv/consts/so.h"
#include "libc/sysv/consts/sol.h"
#include "libc/sysv/consts/tcp.h"
static bool Tune(int fd, int a, int b, int x) {
if (!b) return false;
return setsockopt(fd, a, b, &x, sizeof(x)) != -1;
}
/**
* Returns new socket with modern goodness enabled.
*/
int GoodSocket(int family, int type, int protocol, bool isserver,
const struct timeval *timeout) {
int fd;
if ((fd = socket(family, type, protocol)) != -1) {
if (isserver) {
Tune(fd, SOL_TCP, TCP_FASTOPEN, 100);
Tune(fd, SOL_SOCKET, SO_REUSEADDR, 1);
} else {
Tune(fd, SOL_TCP, TCP_FASTOPEN_CONNECT, 1);
}
if (!Tune(fd, SOL_TCP, TCP_QUICKACK, 1)) {
Tune(fd, SOL_TCP, TCP_NODELAY, 1);
}
if (timeout) {
if (timeout->tv_sec < 0) {
Tune(fd, SOL_SOCKET, SO_KEEPALIVE, 1);
Tune(fd, SOL_TCP, TCP_KEEPIDLE, -timeout->tv_sec);
Tune(fd, SOL_TCP, TCP_KEEPINTVL, -timeout->tv_sec);
} else {
setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, timeout, sizeof(*timeout));
setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, timeout, sizeof(*timeout));
}
}
}
return fd;
}