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socket ip priority optimize

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This commit is contained in:
Nick Peng
2019-10-16 22:57:04 +08:00
parent 9213f898c3
commit 721c56cbec
3 changed files with 36 additions and 1 deletions
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12
src/dns_server.c
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@@ -38,7 +38,9 @@
#include <string.h>
#include <sys/epoll.h>
#include <sys/socket.h>
#include <sys/types.h> /* See NOTES */
#include <sys/types.h>
#include <netinet/ip.h>
#include <netinet/tcp.h>
#define DNS_MAX_EVENTS 256
#define DNS_SERVER_TMOUT_TTL (5 * 60)
@@ -47,6 +49,8 @@
#define DNS_PING_TIMEOUT (DNS_REQUEST_MAX_TIMEOUT)
#define DNS_TCPPING_START (300)
#define DNS_PING_SECOND_TIMEOUT (DNS_REQUEST_MAX_TIMEOUT - DNS_TCPPING_START)
#define SOCKET_IP_TOS (IPTOS_LOWDELAY | IPTOS_RELIABILITY)
#define SOCKET_PRIORITY (6)
#define RECV_ERROR_AGAIN 1
#define RECV_ERROR_OK 0
@@ -2832,6 +2836,9 @@ static int _dns_create_socket(const char *host_ip, int type)
int port;
char *host = NULL;
int optval = 1;
int yes = 1;
const int priority = SOCKET_PRIORITY;
const int ip_tos = SOCKET_IP_TOS;
if (parse_ip(host_ip, ip, &port) == 0) {
host = ip;
@@ -2859,10 +2866,13 @@ static int _dns_create_socket(const char *host_ip, int type)
tlog(TLOG_ERROR, "set socket opt failed.");
goto errout;
}
setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &yes, sizeof(yes));
} else {
setsockopt(fd, IPPROTO_IP, IP_PKTINFO, &optval, sizeof(optval));
setsockopt(fd, IPPROTO_IPV6, IPV6_RECVPKTINFO, &optval, sizeof(optval));
}
setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &priority, sizeof(priority));
setsockopt(fd, IPPROTO_IP, IP_TOS, &ip_tos, sizeof(ip_tos));
if (bind(fd, gai->ai_addr, gai->ai_addrlen) != 0) {
tlog(TLOG_ERROR, "bind service failed, %s\n", strerror(errno));