fc8708量产工具教程-(fc1179量产工具教程)

struct ntyevent { int fd; int events; void *arg; NCALLBACK callback; int status; char buffer[BUFFER_LENGTH]; int length;};struct eventblock { struct eventblock *next; struct ntyevent *events;};struct ntyreactor { int epfd; int blkcnt; struct eventblock *evblk;};

#include <stdio.h>#include <stdlib.h>#include <string.h>#include <sys/socket.h>#include <sys/epoll.h>#include <arpa/inet.h>#include <fcntl.h>#include <unistd.h>#include <errno.h>#define BUFFER_LENGTH 4096#define MAX_EPOLL_EVENTS 1024#define SERVER_PORT 8081#define PORT_COUNT 100typedef int (*NCALLBACK)(int, int, void *);struct ntyevent { int fd; int events; void *arg; NCALLBACK callback; int status; char buffer[BUFFER_LENGTH]; int length;};struct eventblock { struct eventblock *next; struct ntyevent *events;};struct ntyreactor { int epfd; int blkcnt; struct eventblock *evblk;};int recv_cb(int fd, int events, void *arg);int send_cb(int fd, int events, void *arg);struct ntyevent *ntyreactor_find_event_idx(struct ntyreactor *reactor, int sockfd);void nty_event_set(struct ntyevent *ev, int fd, NCALLBACK *callback, void *arg) { ev->fd = fd; ev->callback = callback; ev->events = 0; ev->arg = arg;}int nty_event_add(int epfd, int events, struct ntyevent *ev) { struct epoll_event ep_ev = {0, {0}}; ep_ev.data.ptr = ev; ep_ev.events = ev->events = events; int op; if (ev->status == 1) { op = EPOLL_CTL_MOD; } else { op = EPOLL_CTL_ADD; ev->status = 1; } if (epoll_ctl(epfd, op, ev->fd, &ep_ev) < 0) { printf("event add failed [fd=%d], events[%d]\n", ev->fd, events); return -1; } return 0;}int nty_event_del(int epfd, struct ntyevent *ev) { struct epoll_event ep_ev = {0, {0}}; if (ev->status != 1) { return -1; } ep_ev.data.ptr = ev; ev->status = 0; epoll_ctl(epfd, EPOLL_CTL_DEL, ev->fd, &ep_ev); return 0;}int recv_cb(int fd, int events, void *arg) { struct ntyreactor *reactor = (struct ntyreactor *) arg; struct ntyevent *ev = ntyreactor_find_event_idx(reactor, fd); int len = recv(fd, ev->buffer, BUFFER_LENGTH, 0); // nty_event_del(reactor->epfd, ev); if (len > 0) { ev->length = len; ev->buffer[len] = '\0';// printf("recv[%d]:%s\n", fd, ev->buffer); printf("recv fd=[%d\n", fd); nty_event_set(ev, fd, send_cb, reactor); nty_event_add(reactor->epfd, EPOLLOUT, ev); } else if (len == 0) { close(ev->fd); //printf("[fd=%d] pos[%ld], closed\n", fd, ev-reactor->events); } else { close(ev->fd);// printf("recv[fd=%d] error[%d]:%s\n", fd, errno, strerror(errno)); } return len;}int send_cb(int fd, int events, void *arg) { struct ntyreactor *reactor = (struct ntyreactor *) arg; struct ntyevent *ev = ntyreactor_find_event_idx(reactor, fd); int len = send(fd, ev->buffer, ev->length, 0); if (len > 0) {// printf("send[fd=%d], [%d]%s\n", fd, len, ev->buffer); printf("send fd=[%d\n]", fd); nty_event_del(reactor->epfd, ev); nty_event_set(ev, fd, recv_cb, reactor); nty_event_add(reactor->epfd, EPOLLIN, ev); } else { nty_event_del(reactor->epfd, ev); close(ev->fd); printf("send[fd=%d] error %s\n", fd, strerror(errno)); } return len;}int accept_cb(int fd, int events, void *arg) {//非阻塞 struct ntyreactor *reactor = (struct ntyreactor *) arg; if (reactor == NULL) return -1; struct sockaddr_in client_addr; socklen_t len = sizeof(client_addr); int clientfd; if ((clientfd = accept(fd, (struct sockaddr *) &client_addr, &len)) == -1) { printf("accept: %s\n", strerror(errno)); return -1; } if ((fcntl(clientfd, F_SETFL, O_NONBLOCK)) < 0) { printf("%s: fcntl nonblocking failed, %d\n", __func__, MAX_EPOLL_EVENTS); return -1; } struct ntyevent *event = ntyreactor_find_event_idx(reactor, clientfd); nty_event_set(event, clientfd, recv_cb, reactor); nty_event_add(reactor->epfd, EPOLLIN, event); printf("new connect [%s:%d], pos[%d]\n", inet_ntoa(client_addr.sin_addr), ntohs(client_addr.sin_port), clientfd); return 0;}int init_sock(short port) { int fd = socket(AF_INET, SOCK_STREAM, 0); fcntl(fd, F_SETFL, O_NONBLOCK); struct sockaddr_in server_addr; memset(&server_addr, 0, sizeof(server_addr)); server_addr.sin_family = AF_INET; server_addr.sin_addr.s_addr = htonl(INADDR_ANY); server_addr.sin_port = htons(port); bind(fd, (struct sockaddr *) &server_addr, sizeof(server_addr)); if (listen(fd, 20) < 0) { printf("listen failed : %s\n", strerror(errno)); } return fd;}int ntyreactor_alloc(struct ntyreactor *reactor) { if (reactor == NULL) return -1; if (reactor->evblk == NULL) return -1; struct eventblock *blk = reactor->evblk; while (blk->next != NULL) { blk = blk->next; } struct ntyevent *evs = (struct ntyevent *) malloc((MAX_EPOLL_EVENTS) * sizeof(struct ntyevent)); if (evs == NULL) { printf("ntyreactor_alloc ntyevents failed\n"); return -2; } memset(evs, 0, (MAX_EPOLL_EVENTS) * sizeof(struct ntyevent)); struct eventblock *block = (struct eventblock *) malloc(sizeof(struct eventblock)); if (block == NULL) { printf("ntyreactor_alloc eventblock failed\n"); return -2; } memset(block, 0, sizeof(struct eventblock)); block->events = evs; block->next = NULL; blk->next = block; reactor->blkcnt++; // return 0;}struct ntyevent *ntyreactor_find_event_idx(struct ntyreactor *reactor, int sockfd) { int blkidx = sockfd / MAX_EPOLL_EVENTS; while (blkidx >= reactor->blkcnt) { ntyreactor_alloc(reactor); } int i = 0; struct eventblock *blk = reactor->evblk; while (i++ < blkidx && blk != NULL) { blk = blk->next; } return &blk->events[sockfd % MAX_EPOLL_EVENTS];}int ntyreactor_init(struct ntyreactor *reactor) { if (reactor == NULL) return -1; memset(reactor, 0, sizeof(struct ntyreactor)); reactor->epfd = epoll_create(1); if (reactor->epfd <= 0) { printf("create epfd in %s err %s\n", __func__, strerror(errno)); return -2; } struct ntyevent *evs = (struct ntyevent *) malloc((MAX_EPOLL_EVENTS) * sizeof(struct ntyevent)); if (evs == NULL) { printf("ntyreactor_alloc ntyevents failed\n"); return -2; } memset(evs, 0, (MAX_EPOLL_EVENTS) * sizeof(struct ntyevent)); struct eventblock *block = (struct eventblock *) malloc(sizeof(struct eventblock)); if (block == NULL) { printf("ntyreactor_alloc eventblock failed\n"); return -2; } memset(block, 0, sizeof(struct eventblock)); block->events = evs; block->next = NULL; reactor->evblk = block; reactor->blkcnt = 1; return 0;}int ntyreactor_destory(struct ntyreactor *reactor) { close(reactor->epfd); //free(reactor->events); struct eventblock *blk = reactor->evblk; struct eventblock *blk_next = NULL; while (blk != NULL) { blk_next = blk->next; free(blk->events); free(blk); blk = blk_next; } return 0;}int ntyreactor_addlistener(struct ntyreactor *reactor, int sockfd, NCALLBACK *acceptor) { if (reactor == NULL) return -1; if (reactor->evblk == NULL) return -1; struct ntyevent *event = ntyreactor_find_event_idx(reactor, sockfd); nty_event_set(event, sockfd, acceptor, reactor); nty_event_add(reactor->epfd, EPOLLIN, event); return 0;}_Noreturn int ntyreactor_run(struct ntyreactor *reactor) { if (reactor == NULL) return -1; if (reactor->epfd < 0) return -1; if (reactor->evblk == NULL) return -1; struct epoll_event events[MAX_EPOLL_EVENTS + 1]; int i; while (1) { int nready = epoll_wait(reactor->epfd, events, MAX_EPOLL_EVENTS, 1000); if (nready < 0) { printf("epoll_wait error, exit\n"); continue; } for (i = 0; i < nready; i++) { struct ntyevent *ev = (struct ntyevent *) events[i].data.ptr; if ((events[i].events & EPOLLIN) && (ev->events & EPOLLIN)) { ev->callback(ev->fd, events[i].events, ev->arg); } if ((events[i].events & EPOLLOUT) && (ev->events & EPOLLOUT)) { ev->callback(ev->fd, events[i].events, ev->arg); } } }}// <remoteip, remoteport, localip, localport,protocol>int main(int argc, char *argv[]) { unsigned short port = SERVER_PORT; // listen 8081 if (argc == 2) { port = atoi(argv[1]); } struct ntyreactor *reactor = (struct ntyreactor *) malloc(sizeof(struct ntyreactor)); ntyreactor_init(reactor); int i = 0; int sockfds[PORT_COUNT] = {0}; for (i = 0; i < PORT_COUNT; i++) { sockfds[i] = init_sock(port + i); ntyreactor_addlistener(reactor, sockfds[i], accept_cb); } ntyreactor_run(reactor); ntyreactor_destory(reactor); for (i = 0; i < PORT_COUNT; i++) { close(sockfds[i]); } free(reactor); return 0;}

客户端代码

#include <stdio.h>#include <string.h>#include <stdlib.h>#include <sys/types.h>#include <sys/socket.h>#include <sys/epoll.h>#include <errno.h>#include <netinet/tcp.h>#include <arpa/inet.h>#include <netdb.h>#include <fcntl.h>#include <sys/time.h>#include <unistd.h>#define MAX_BUFFER128#define MAX_EPOLLSIZE(384*1024)#define MAX_PORT100#define TIME_SUB_MS(tv1, tv2) ((tv1.tv_sec - tv2.tv_sec) * 1000 + (tv1.tv_usec - tv2.tv_usec) / 1000)int isContinue = 0;static int ntySetNonblock(int fd) {int flags;flags = fcntl(fd, F_GETFL, 0);if (flags < 0) return flags;flags |= O_NONBLOCK;if (fcntl(fd, F_SETFL, flags) < 0) return -1;return 0;}static int ntySetReUseAddr(int fd) {int reuse = 1;return setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&reuse, sizeof(reuse));}int main(int argc, char **argv) {if (argc <= 2) {printf("Usage: %s ip port\n", argv[0]);exit(0);}const char *ip = argv[1];int port = atoi(argv[2]);int connections = 0;char buffer[128] = {0};int i = 0, index = 0;struct epoll_event events[MAX_EPOLLSIZE];int epoll_fd = epoll_create(MAX_EPOLLSIZE);strcpy(buffer, " Data From MulClient\n");struct sockaddr_in addr;memset(&addr, 0, sizeof(struct sockaddr_in));addr.sin_family = AF_INET;addr.sin_addr.s_addr = inet_addr(ip);struct timeval tv_begin;gettimeofday(&tv_begin, NULL);while (1) {if (++index >= MAX_PORT) index = 0;struct epoll_event ev;int sockfd = 0;if (connections < 340000 && !isContinue) {sockfd = socket(AF_INET, SOCK_STREAM, 0);if (sockfd == -1) {perror("socket");goto err;}//ntySetReUseAddr(sockfd);addr.sin_port = htons(port+index);if (connect(sockfd, (struct sockaddr*)&addr, sizeof(struct sockaddr_in)) < 0) {perror("connect");goto err;}ntySetNonblock(sockfd);ntySetReUseAddr(sockfd);sprintf(buffer, "Hello Server: client --> %d\n", connections);send(sockfd, buffer, strlen(buffer), 0);ev.data.fd = sockfd;ev.events = EPOLLIN | EPOLLOUT;epoll_ctl(epoll_fd, EPOLL_CTL_ADD, sockfd, &ev);connections ++;}//connections ++;if (connections % 1000 == 999 || connections >= 340000) {struct timeval tv_cur;memcpy(&tv_cur, &tv_begin, sizeof(struct timeval));gettimeofday(&tv_begin, NULL);int time_used = TIME_SUB_MS(tv_begin, tv_cur);printf("connections: %d, sockfd:%d, time_used:%d\n", connections, sockfd, time_used);int nfds = epoll_wait(epoll_fd, events, connections, 100);for (i = 0;i < nfds;i ++) {int clientfd = events[i].data.fd;if (events[i].events & EPOLLOUT) {sprintf(buffer, "data from %d\n", clientfd);send(sockfd, buffer, strlen(buffer), 0);} else if (events[i].events & EPOLLIN) {char rBuffer[MAX_BUFFER] = {0};ssize_t length = recv(sockfd, rBuffer, MAX_BUFFER, 0);if (length > 0) {printf(" RecvBuffer:%s\n", rBuffer);if (!strcmp(rBuffer, "quit")) {isContinue = 0;}} else if (length == 0) {printf(" Disconnect clientfd:%d\n", clientfd);connections --;close(clientfd);} else {if (errno == EINTR) continue;printf(" Error clientfd:%d, errno:%d\n", clientfd, errno);close(clientfd);}} else {printf(" clientfd:%d, errno:%d\n", clientfd, errno);close(clientfd);}}}usleep(1 * 1000);}return 0;err:printf("error : %s\n", strerror(errno));return 0;}

相关视频推荐

准备4台虚拟机，一起来实现服务器百万级并发

linux多线程之epoll原理剖析与reactor原理及应用

学习地址：C/C++Linux服务器开发/后台架构师【零声教育】-学习视频教程-腾讯课堂

需要C/C++ Linux服务器架构师学习资料加qun812855908（资料包括C/C++，Linux，golang技术，内核，Nginx，ZeroMQ，MySQL，Redis，fastdfs，MongoDB，ZK，流媒体，CDN，P2P，K8S，Docker，TCP/IP，协程，DPDK，ffmpeg，大厂面试题 等）