homework-jianmu/src/kit/taosnetwork/server.c

247 lines
6.7 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <argp.h>
#include <arpa/inet.h>
#include <errno.h>
#include <fcntl.h>
#include <netdb.h>
#include <netinet/in.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <pthread.h>
#define MAX_PKG_LEN (64*1000)
#define BUFFER_SIZE (MAX_PKG_LEN + 1024)
typedef struct {
int port;
uint16_t pktLen;
} info_s;
typedef struct Arguments {
char * host;
uint16_t port;
uint16_t max_port;
uint16_t pktLen;
} SArguments;
static struct argp_option options[] = {
{0, 'h', "host", 0, "The host to connect to TDEngine. Default is localhost.", 0},
{0, 'p', "port", 0, "The TCP or UDP port number to use for the connection. Default is 6041.", 1},
{0, 'm', "max port", 0, "The max TCP or UDP port number to use for the connection. Default is 6060.", 2},
{0, 'l', "test pkg len", 0, "The len of pkg for test. Default is 1000 Bytes, max not greater than 64k Bytes.\nNotes: This parameter must be consistent between the client and the server.", 3}};
static error_t parse_opt(int key, char *arg, struct argp_state *state) {
SArguments *arguments = state->input;
switch (key) {
case 'h':
arguments->host = arg;
break;
case 'p':
arguments->port = atoi(arg);
break;
case 'm':
arguments->max_port = atoi(arg);
break;
case 'l':
arguments->pktLen = atoi(arg);
break;
default:
return ARGP_ERR_UNKNOWN;
}
return 0;
}
static struct argp argp = {options, parse_opt, 0, 0};
static void *bindTcpPort(void *sarg) {
info_s *pinfo = (info_s *)sarg;
int port = pinfo->port;
int serverSocket;
struct sockaddr_in server_addr;
struct sockaddr_in clientAddr;
int addr_len = sizeof(clientAddr);
int client;
char buffer[BUFFER_SIZE];
int iDataNum = 0;
if ((serverSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0) {
printf("socket() fail: %s", strerror(errno));
return NULL;
}
bzero(&server_addr, sizeof(server_addr));
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(port);
server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(serverSocket, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0) {
printf("port:%d bind() fail: %s", port, strerror(errno));
return NULL;
}
if (listen(serverSocket, 5) < 0) {
printf("listen() fail: %s", strerror(errno));
return NULL;
}
//printf("Bind port: %d success\n", port);
while (1) {
client = accept(serverSocket, (struct sockaddr *)&clientAddr, (socklen_t *)&addr_len);
if (client < 0) {
printf("accept() fail: %s", strerror(errno));
continue;
}
memset(buffer, 0, BUFFER_SIZE);
int nleft, nread;
char *ptr = buffer;
nleft = pinfo->pktLen;
while (nleft > 0) {
nread = recv(client, ptr, BUFFER_SIZE, 0);
if (nread == 0) {
break;
} else if (nread < 0) {
if (errno == EINTR) {
continue;
} else {
printf("recv Client: %s pkg from TCP port: %d fail:%s.\n", inet_ntoa(clientAddr.sin_addr), port, strerror(errno));
close(serverSocket);
return NULL;
}
} else {
nleft -= nread;
ptr += nread;
iDataNum += nread;
}
}
printf("recv Client: %s pkg from TCP port: %d, pkg len: %d\n", inet_ntoa(clientAddr.sin_addr), port, iDataNum);
if (iDataNum > 0) {
send(client, buffer, iDataNum, 0);
break;
}
}
close(serverSocket);
return NULL;
}
static void *bindUdpPort(void *sarg) {
info_s *pinfo = (info_s *)sarg;
int port = pinfo->port;
int serverSocket;
struct sockaddr_in server_addr;
struct sockaddr_in clientAddr;
char buffer[BUFFER_SIZE];
int iDataNum;
if ((serverSocket = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
perror("socket");
return NULL;
}
bzero(&server_addr, sizeof(server_addr));
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(port);
server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(serverSocket, (struct sockaddr *)&server_addr, sizeof(server_addr)) < 0) {
perror("connect");
return NULL;
}
socklen_t sin_size;
while (1) {
memset(buffer, 0, BUFFER_SIZE);
sin_size = sizeof(*(struct sockaddr *)&server_addr);
iDataNum = recvfrom(serverSocket, buffer, BUFFER_SIZE, 0, (struct sockaddr *)&clientAddr, &sin_size);
if (iDataNum < 0) {
perror("recvfrom null");
continue;
}
if (iDataNum > 0) {
printf("recv Client: %s pkg from UDP port: %d, pkg len: %d\n", inet_ntoa(clientAddr.sin_addr), port, iDataNum);
//printf("Read msg from udp:%s ... %s\n", buffer, buffer+iDataNum-16);
sendto(serverSocket, buffer, iDataNum, 0, (struct sockaddr *)&clientAddr, (int)sin_size);
}
}
close(serverSocket);
return NULL;
}
int main(int argc, char *argv[]) {
SArguments arguments = {"127.0.0.1", 6030, 6060, 1000};
argp_parse(&argp, argc, argv, 0, 0, &arguments);
if (arguments.pktLen > MAX_PKG_LEN) {
printf("test pkg len overflow: %d, max len not greater than %d bytes\n", arguments.pktLen, MAX_PKG_LEN);
exit(0);
}
int port = arguments.port;
int num = arguments.max_port - arguments.port + 1;
if (num < 0) {
num = 1;
}
pthread_t *pids = malloc(2 * num * sizeof(pthread_t));
info_s * tinfos = malloc(num * sizeof(info_s));
info_s * uinfos = malloc(num * sizeof(info_s));
for (size_t i = 0; i < num; i++) {
info_s *tcpInfo = tinfos + i;
tcpInfo->port = port + i;
tcpInfo->pktLen = arguments.pktLen;
if (pthread_create(pids + i, NULL, bindTcpPort, tcpInfo) != 0)
{
printf("create thread fail, port:%d.\n", port);
exit(-1);
}
info_s *udpInfo = uinfos + i;
udpInfo->port = port + i;
if (pthread_create(pids + num + i, NULL, bindUdpPort, udpInfo) != 0)
{
printf("create thread fail, port:%d.\n", port);
exit(-1);
}
}
for (int i = 0; i < num; i++) {
pthread_join(pids[i], NULL);
pthread_join(pids[(num + i)], NULL);
}
}