/*
* virSocketFormatAddr:
* @addr: an initialized virSocketAddrPtr
*
* Returns a string representation of the given address
* Returns NULL on any error
* Caller must free the returned string
*/
char *
virSocketFormatAddr(virSocketAddrPtr addr) {
return virSocketFormatAddrFull(addr, false, NULL);
}
static virNetSocketPtr virNetSocketNew(virSocketAddrPtr localAddr,
virSocketAddrPtr remoteAddr,
bool isClient,
int fd, int errfd, pid_t pid)
{
virNetSocketPtr sock;
int no_slow_start = 1;
VIR_DEBUG("localAddr=%p remoteAddr=%p fd=%d errfd=%d pid=%d",
localAddr, remoteAddr,
fd, errfd, pid);
if (virSetCloseExec(fd) < 0) {
virReportSystemError(errno, "%s",
_("Unable to set close-on-exec flag"));
return NULL;
}
if (virSetNonBlock(fd) < 0) {
virReportSystemError(errno, "%s",
_("Unable to enable non-blocking flag"));
return NULL;
}
if (VIR_ALLOC(sock) < 0) {
virReportOOMError();
return NULL;
}
if (virMutexInit(&sock->lock) < 0) {
virReportSystemError(errno, "%s",
_("Unable to initialize mutex"));
VIR_FREE(sock);
return NULL;
}
sock->refs = 1;
if (localAddr)
sock->localAddr = *localAddr;
if (remoteAddr)
sock->remoteAddr = *remoteAddr;
sock->fd = fd;
sock->errfd = errfd;
sock->pid = pid;
/* Disable nagle for TCP sockets */
if (sock->localAddr.data.sa.sa_family == AF_INET ||
sock->localAddr.data.sa.sa_family == AF_INET6) {
if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY,
&no_slow_start,
sizeof(no_slow_start)) < 0) {
virReportSystemError(errno, "%s",
_("Unable to disable nagle algorithm"));
goto error;
}
}
if (localAddr &&
!(sock->localAddrStr = virSocketFormatAddrFull(localAddr, true, ";")))
goto error;
if (remoteAddr &&
!(sock->remoteAddrStr = virSocketFormatAddrFull(remoteAddr, true, ";")))
goto error;
sock->client = isClient;
PROBE(RPC_SOCKET_NEW,
"sock=%p refs=%d fd=%d errfd=%d pid=%d localAddr=%s, remoteAddr=%s",
sock, sock->refs, fd, errfd,
pid, NULLSTR(sock->localAddrStr), NULLSTR(sock->remoteAddrStr));
return sock;
error:
sock->fd = sock->errfd = -1; /* Caller owns fd/errfd on failure */
virNetSocketFree(sock);
return NULL;
}
