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| //
// tcp_client.cpp
// uv-test
//
// Created by 李伟 on 2018/7/31.
// Copyright © 2018年 李伟. All rights reserved.
//
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <string>
#include "uv.h"
//#include "tcp_client.hpp"
//#include "net_iobuffer.h"
//#include "data_struct.hpp"
char isend [1000];
int cou_isend =0;
static uv_sem_t sem;
static uv_mutex_t mutex;
static uv_loop_t* loop;
static uv_tcp_t client;
static std::string flag;
//static NetIOBuffer iobuffer;
static int is_connected; // 1 conncected 0 connecting -1 fail
uv_timer_t timerevent;
static void alloc_cb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf);
static void read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf);
static void write_cb(uv_write_t* req, int status);
static void connect_cb(uv_connect_t* req, int status);
//static void parse_cb(MSG* pack, void* userdata);
typedef struct {
uv_write_t req;
uv_buf_t buf;
} write_req_t;
static void free_write_req(uv_write_t *req) {
write_req_t *wr = (write_req_t*) req;
free(wr->buf.base);
free(wr);
}
static int counter = 0;
/*
void parse_cb(MSG* msg, void* userdata) {
int main_cmd = msg->main_cmd;
int assi_cmd = msg->assi_cmd;
char* buf = msg->buf;
reponse_a_data * reponse = reinterpret_cast<reponse_a_data*>(buf);
printf("[%d] main_id: %d, ass_id: %d, code: %d, c: %d\n", counter++, main_cmd, assi_cmd, reponse->code, reponse->c);
}*/
void alloc_cb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf) {
buf->base = (char*) malloc(1024);
buf->len = 1024;
}
void read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
if (nread < 0) {
if (nread != UV_EOF) {
fprintf(stderr, "read error %s\n", uv_err_name((int)nread));
}
//uv_close((uv_handle_t*)&client, NULL);зачем он тут закрывал???
} else if (nread == 0) {
//fprintf(stderr, "error %s\n", uv_err_name((int)nread));
}
else {
//iobuffer.parse(buf->base, (int)nread, parse_cb, NULL);
//ЧТЕНИЕ
char mybyte[1000];//высвобождение их массива сюда
char *takebuf = buf->base;//получил указатель на их массив
int mynread=nread;
memcpy(&mybyte, takebuf, mynread);
if (buf->base) {//перенес эти строки раньше считаю их высвобождением памяти в библиотеке у меня есть копия данных в mybyte СПЕШУ ОТЧИСТИТЬ ИХ БУФЕР
free(buf->base);
}
//моя работа с полученными данными
//результат работы может придти к отправке в этом же соединения асинхронно от потока "таймер"
uv_mutex_lock(&mutex);
isend[(cou_isend)*15]=4;
isend[(cou_isend)*15+1]=42;
isend[(cou_isend)*15+2]=43;
isend[(cou_isend)*15+2]=44;
cou_isend++;
uv_mutex_unlock(&mutex);
uv_sem_post(&sem);
}
/*if (buf->base) {
free(buf->base);
}*/
}
void write_cb(uv_write_t* req, int status) {
free(req);
}
void entry(void *arg) {
int i = 1;
int for_sub=0;
while (i) {
/*reqest_a_data data;
data.a = 10;
data.b = 20;
iobuffer.send(100, 200, (void*)&data, sizeof(data), [](NetPacket * pkt) -> int {
uv_write_t *req = (uv_write_t*)malloc(sizeof(uv_write_t));
//uv_buf_t newbuf = uv_buf_init(pkt->Buffer(), pkt->BufferSize());
uv_buf_t *buf_t = (uv_buf_t*)::malloc(sizeof(uv_buf_t));
buf_t->base = (char*)::malloc(sizeof(char) * pkt->BufferSize());
buf_t->len = pkt->BufferSize();
memcpy(buf_t->base, pkt->Buffer(), pkt->BufferSize());
int r = uv_write(req, (uv_stream_t*)&client, buf_t, 1, write_cb);
return r;
});*/
//sleep(0.5);
if((cou_isend-for_sub)>0)
{
uv_mutex_lock(&mutex);
char mess [54];
memcpy(&mess,&isend[(for_sub)*54],54);
uv_mutex_unlock(&mutex);
uv_write_t *req_write = (uv_write_t*)malloc(sizeof(uv_write_t));
uv_buf_t wrbuf = uv_buf_init(mess, mess[0]);
uv_write(req_write, (uv_stream_t*)&client,&wrbuf, 1, write_cb);
++for_sub;
}
else{
uv_sem_wait(&sem);//остановка while как ее вижу я
}
}
}
void connect_cb(uv_connect_t* req, int status) {
if (0 == status)
{
int ret = uv_read_start(req->handle, alloc_cb, read_cb);
printf("[%d]", ret);
uv_thread_t tid;
uv_thread_create(&tid, entry, NULL);
is_connected = 1;
}
else
{
is_connected = -1;
printf("socket error. [%d]\n", status);
}
}
void timer_cb(uv_timer_t* handle) {
if (is_connected == 0) {
return ;
}
//таймер эмулирует соединение с сервером и мою какую то отправку данных
//первое число длинна сообщения
uv_mutex_lock(&mutex);
isend[(cou_isend)*15]=3;
isend[(cou_isend)*15+1]=51;
isend[(cou_isend)*15+2]=52;
cou_isend++;
uv_mutex_unlock(&mutex);
uv_sem_post(&sem);
/*
if (is_connected == -1) {
uv_timer_stop(&timerevent);
return ;
}
reqest_a_data data;
data.a = 10;
data.b = 20;
iobuffer.send(100, 200, (void*)&data, sizeof(data), [](NetPacket * pkt) -> int {
uv_write_t *req = (uv_write_t*)malloc(sizeof(uv_write_t));
//uv_buf_t newbuf = uv_buf_init(pkt->Buffer(), pkt->BufferSize());
uv_buf_t *buf_t = (uv_buf_t*)::malloc(sizeof(uv_buf_t));
buf_t->base = (char*)::malloc(sizeof(char) * pkt->BufferSize());
buf_t->len = pkt->BufferSize();
memcpy(buf_t->base, pkt->Buffer(), pkt->BufferSize());
int r = uv_write(req, (uv_stream_t*)&client, buf_t, 1, write_cb);
return r;
});
*/
}
//int client_run(int argc, char ** args)
int main(int argc, char ** args)
{
loop = uv_loop_new();
uv_tcp_init(loop, &client);
uv_connect_t* connect_req = (uv_connect_t*)::malloc(sizeof(uv_connect_t));
sockaddr_in addr;
int r = uv_ip4_addr("127.0.0.1", 7000, &addr);
r = uv_tcp_connect(connect_req, &client, (const sockaddr*)&addr, connect_cb);
if (r != 0) {
}
uv_timer_init(loop, &timerevent);
uv_timer_start(&timerevent, timer_cb, 1000, 10);
r = uv_run(loop, UV_RUN_DEFAULT);
if (r != 0) {
}
uv_loop_close(loop);
free(connect_req);
free(loop);
return r;
} |
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