ESP8266http工作队列的实现方法

>   有一次在做开发的过程中，发现8266的三个任务已经尽数用完了o(╯□╰)o。没办法，串口驱动也要用一个呢。后来干脆想，把HTTP的任务加在队列里，定时扫描队列出对执行就好了，然后就开始构想代码。于是就是下面两片代码。    app_net_work.c为上层提供app_net_work_init()、http_set_work(http_work_t job)，这两个函数，顾名思义就是初始化队列和入队。    然后app_http.c是再下一层，作用是描述具体任务，主要是将工作号和任务对应起来，这里用到了函数指针数组，这样可以方便自由地增删新的函数，不过注意在接收函数末了加入判断是否将GlobalHttp.info.isworking置0，以使该工作是否从队列中删除。

/* * app_net_work.h * *  Created on: 2017年5月25日 *      Author: Administrator */#ifndef APP_INCLUDE_APP_NET_WORK_H_#define APP_INCLUDE_APP_NET_WORK_H_#include "jobs_of_net_work.h"#define HTTP_TASK_SIZE  8ETSTimer net_work_timer;typedef struct{    http_work_t     task_sequence[HTTP_TASK_SIZE];    struct {        uint8_t         active:4;        uint8_t         current:3;        uint8_t         isworking:1;    }info;}http_task_t;http_task_t GlobalHttp;int ICACHE_FLASH_ATTR app_net_work_init();int ICACHE_FLASH_ATTR http_set_work(http_work_t job);#endif /* APP_INCLUDE_APP_NET_WORK_H_ */

/* * app_net_work.c * *  Created on: 2017年5月25日 *      Author: Administrator */#include "includes.h"#include "client.h"#include "app_net_work.h"#include "app_http.h"//把工作加入队列int ICACHE_FLASH_ATTR http_set_work(http_work_t job){    if ((GlobalHttp.info.current + 1) % HTTP_TASK_SIZE == GlobalHttp.info.active)    {        os_printf("\r\nIn queue error,may be full.\r\n");        return FALSE;    } //队满，无法添加    GlobalHttp.task_sequence[GlobalHttp.info.current] = job;  //插入元素    GlobalHttp.info.current =  (GlobalHttp.info.current + 1) % HTTP_TASK_SIZE; //队尾指针+1    os_printf("\r\nIN queue:%d\r\n",job);    return TRUE;}//定时扫描任务int ICACHE_FLASH_ATTR ScanJobfn(){    http_work_t HttpJob;#ifdef HTTP_QUEUE    os_printf("\r\nScan job.\r\n");#endif    if (GlobalHttp.info.active == GlobalHttp.info.current){        GlobalHttp.info.isworking = 1;//避免非空队执行时候误删队首#ifdef HTTP_QUEUE        os_printf("\r\nempty\r\n");#endif        return FALSE; //队空，无法出队或执行    }    if(GlobalHttp.info.isworking == 0){//如果上一个任务完成        GlobalHttp.info.active = (GlobalHttp.info.active + 1) % HTTP_TASK_SIZE;#ifdef HTTP_QUEUE        os_printf("  --%d-",GlobalHttp.info.active); //队头指针+1,删除队首#endif        if (GlobalHttp.info.active == GlobalHttp.info.current){            GlobalHttp.info.isworking = 1;//避免非空队执行时候误删队首#ifdef HTTP_QUEUE            os_printf("\r\n. empty\r\n");#endif            return FALSE; //队空，无法执行        }    }    HttpJob = GlobalHttp.task_sequence[GlobalHttp.info.active];//读取队首#ifdef HTTP_QUEUE    os_printf("%d %d\n",HttpJob,GlobalHttp.task_sequence[GlobalHttp.info.active+1]);#endif    if(true == startHttpWork(HttpJob))//如果执行不出错        os_timer_disarm(&net_work_timer);//工作执行，暂停扫描    GlobalHttp.info.isworking = 1;//去执行，故置一    return TRUE;}int ICACHE_FLASH_ATTR app_net_work_init(){    initHttpWork();    GlobalHttp.info.isworking = 1;    GlobalHttp.info.active = GlobalHttp.info.current = 0;       //队空    os_timer_setfn(&net_work_timer,ScanJobfn,NULL);    os_timer_arm (&net_work_timer,3000,1);    return TRUE;}

/* * app_http.h * *  Created on: 2017年5月25日 *      Author: Administrator */#ifndef APP_INCLUDE_APP_HTTP_H_#define APP_INCLUDE_APP_HTTP_H_#define POST "POST %s HTTP/1.1\r\nHOST: %s\r\nUser-Agent: wifi/1.0\r\nContent-Type:application/json;charset=UTF-8\r\nContent-Length: %d\r\n\r\n\r\n%s"#include "hh_json.h"#include "includes.h"#include "app_net_work.h"#include "client.h"void ICACHE_FLASH_ATTR initHttpWork();int ICACHE_FLASH_ATTR startHttpWork(http_work_t job_flag);#endif /* APP_INCLUDE_APP_HTTP_H_ */

/* * app_http.c * *  Created on: 2017年5月25日 *      Author: Administrator */#include "app_http.h"#include "hh_json.h"#include "user_main.h"#include "string.h"#include "driver/mqtt.h"#include "user_mqtt.h"extern http_task_t GlobalHttp;ETSTimer wait_wifi_conn;void ICACHE_FLASH_ATTR NULL_fn(){}/*****************************************************//********************自定义接收函数**********************/void ICACHE_FLASH_ATTR regist_recv_cb(void *arg,char *pdata,unsigned short len){os_printf("\nregist_recv_cb:%s\n",pdata);/*略*/if(success) GlobalHttp.info.isworking = 0;//略写部分具有判断是否执行isworking=0的机制，可以理解成略去部分已经进行了对success变量进行处置。}void ICACHE_FLASH_ATTR login_recv_cb(void *arg,char *pdata,unsigned short len){os_printf("\nlogin_recv_cb\n");/*略*/if(success) GlobalHttp.info.isworking = 0;}void ICACHE_FLASH_ATTR module_ota_recv_cb(void *arg,char *pdata,unsigned short len){    /*略*/    if(success) GlobalHttp.info.isworking = 0;}void ICACHE_FLASH_ATTR module_ota_download_cb(void *arg,char *pdata,unsigned short len){    /*略*/    if(success) GlobalHttp.info.isworking = 0;}//回调函数的数组void* user_tcp_recv_cb[HTTP_TASK_SIZE]={NULL_fn,regist_recv_cb,login_recv_cb,NULL_fn,module_ota_recv_cb,module_ota_download_cb};/********************自定义接收函数***********************//*****************************************************//**********************自定义组包函数**********************//*****************************************************/void ICACHE_FLASH_ATTR regist_recv_pack(char* buf){    /*略*/}void ICACHE_FLASH_ATTR login_recv_pack(char* buf){    /*略*/}void ICACHE_FLASH_ATTR module_ota_pack(char* buf){    /*略*/}void ICACHE_FLASH_ATTR module_ota_download_pack(char* buf){    /*略*/}void (*user_make_package[HTTP_TASK_SIZE])(char*)={NULL_fn,regist_recv_pack,login_recv_pack,NULL_fn,module_ota_pack,module_ota_download_pack};/**********************自定义组包函数*************************//*********************************************************/int ICACHE_FLASH_ATTR startHttpWork(http_work_t job_flag){    os_printf("\r\nHTTP JOB: %d\r\n",job_flag);    //需要发的东西打包的函数    (user_make_package[job_flag])(sent_buffer);    os_printf("\r\n%s\r\n",sent_buffer);    if(0 != espconn_connect(&user_tcp_conn[job_flag])) {        os_printf("\nFAIL TO start CONNECT\n");        return false;    }    espconn_regist_recvcb(&user_tcp_conn[job_flag],user_tcp_recv_cb[job_flag]);    return true;}void ICACHE_FLASH_ATTR DSNfound(const char *name, ip_addr_t *ipaddr, void *arg){    struct ip_info ipinfo;    os_printf("{\r\n-------------------\r\n}");    wifi_get_ip_info(STATION_IF,&ipinfo);    os_printf("{\r\n-------------------\r\n}");    char textip[4]={192,168,1,209};        //测试使用ip地址    my_tcp_station_init((struct ip_addr*)textip,&ipinfo.ip,10025);//创建链接    //my_tcp_station_init(ipaddr,&ipinfo.ip,80);    os_printf("{\r\n-------------------\r\n}");    os_timer_disarm(&wait_wifi_conn);    //wifiConnectCb(wifi_station_get_connect_status());}void ICACHE_FLASH_ATTR startinit(){    ip_addr_t dns_addr;//这个接口函数要，没用但是要定义    struct espconn user_con;    if(wifi_station_get_connect_status() != STATION_GOT_IP) return;    if(ESPCONN_OK == espconn_gethostbyname(&user_con,MY_COMPANY_DNS, &dns_addr,DSNfound))        os_timer_disarm(&wait_wifi_conn);}void ICACHE_FLASH_ATTR initHttpWork(){    os_timer_setfn(&wait_wifi_conn,startinit,NULL);    os_timer_arm(&wait_wifi_conn,2000,1);    os_printf("-");}