espconn.c File Reference

#include "lwip/netif.h"
#include "lwip/inet.h"
#include "netif/etharp.h"
#include "lwip/tcp.h"
#include "lwip/ip.h"
#include "lwip/init.h"
#include "ets_sys.h"
#include "os_type.h"
#include "lwip/mem.h"
#include "lwip/app/espconn_tcp.h"
#include "lwip/app/espconn_udp.h"
#include "lwip/app/espconn.h"
#include "user_interface.h"

Include dependency graph for espconn.c:

Go to the source code of this file.

Functions
static uint8	espconn_tcp_get_buf_count (espconn_buf *pesp_buf)
void ICACHE_FLASH_ATTR	espconn_copy_partial (struct espconn *pesp_dest, struct espconn *pesp_source)
void ICACHE_FLASH_ATTR	espconn_list_creat (espconn_msg **phead, espconn_msg *pinsert)
void ICACHE_FLASH_ATTR	espconn_list_delete (espconn_msg **phead, espconn_msg *pdelete)
void ICACHE_FLASH_ATTR	espconn_pbuf_create (espconn_buf **phead, espconn_buf *pinsert)
void ICACHE_FLASH_ATTR	espconn_pbuf_delete (espconn_buf **phead, espconn_buf *pdelete)
bool ICACHE_FLASH_ATTR	espconn_find_connection (struct espconn *pespconn, espconn_msg **pnode)
static uint8 ICACHE_FLASH_ATTR	espconn_get_acticve_num (uint8 type)
sint8 ICACHE_FLASH_ATTR	espconn_connect (struct espconn *espconn)
sint8 ICACHE_FLASH_ATTR	espconn_create (struct espconn *espconn)
sint8 ICACHE_FLASH_ATTR	espconn_sent (struct espconn *espconn, uint8 *psent, uint16 length)
sint16 ICACHE_FLASH_ATTR	espconn_sendto (struct espconn *espconn, uint8 *psent, uint16 length)
sint8	espconn_send (struct espconn *espconn, uint8 *psent, uint16 length) __attribute__((alias("espconn_sent")))
uint8 ICACHE_FLASH_ATTR	espconn_tcp_get_wnd (void)
sint8 ICACHE_FLASH_ATTR	espconn_tcp_set_wnd (uint8 num)
uint16 ICACHE_FLASH_ATTR	espconn_tcp_get_mss (void)
uint8 ICACHE_FLASH_ATTR	espconn_tcp_get_max_con (void)
sint8 ICACHE_FLASH_ATTR	espconn_tcp_set_max_con (uint8 num)
uint8 ICACHE_FLASH_ATTR	espconn_tcp_get_max_retran (void)
sint8 ICACHE_FLASH_ATTR	espconn_tcp_set_max_retran (uint8 num)
uint8 ICACHE_FLASH_ATTR	espconn_tcp_get_max_syn (void)
sint8 ICACHE_FLASH_ATTR	espconn_tcp_set_max_syn (uint8 num)
sint8 ICACHE_FLASH_ATTR	espconn_tcp_get_max_con_allow (struct espconn *espconn)
sint8 ICACHE_FLASH_ATTR	espconn_tcp_set_max_con_allow (struct espconn *espconn, uint8 num)
sint8 ICACHE_FLASH_ATTR	espconn_tcp_set_buf_count (struct espconn *espconn, uint8 num)
sint8 ICACHE_FLASH_ATTR	espconn_regist_sentcb (struct espconn *espconn, espconn_sent_callback sent_cb)
sint8 ICACHE_FLASH_ATTR	espconn_regist_write_finish (struct espconn *espconn, espconn_connect_callback write_finish_fn)
sint8 ICACHE_FLASH_ATTR	espconn_regist_connectcb (struct espconn *espconn, espconn_connect_callback connect_cb)
sint8 ICACHE_FLASH_ATTR	espconn_regist_recvcb (struct espconn *espconn, espconn_recv_callback recv_cb)
sint8 ICACHE_FLASH_ATTR	espconn_regist_reconcb (struct espconn *espconn, espconn_reconnect_callback recon_cb)
sint8 ICACHE_FLASH_ATTR	espconn_regist_disconcb (struct espconn *espconn, espconn_connect_callback discon_cb)
sint8 ICACHE_FLASH_ATTR	espconn_get_connection_info (struct espconn *pespconn, remot_info **pcon_info, uint8 typeflags)
sint8 ICACHE_FLASH_ATTR	espconn_accept (struct espconn *espconn)
sint8 ICACHE_FLASH_ATTR	espconn_regist_time (struct espconn *espconn, uint32 interval, uint8 type_flag)
sint8 ICACHE_FLASH_ATTR	espconn_disconnect (struct espconn *espconn)
sint8 ICACHE_FLASH_ATTR	espconn_abort (struct espconn *espconn)
sint8 ICACHE_FLASH_ATTR	espconn_get_packet_info (struct espconn *espconn, struct espconn_packet *infoarg)
sint8 ICACHE_FLASH_ATTR	espconn_set_opt (struct espconn *espconn, uint8 opt)
sint8 ICACHE_FLASH_ATTR	espconn_clear_opt (struct espconn *espconn, uint8 opt)
sint8 ICACHE_FLASH_ATTR	espconn_set_keepalive (struct espconn *espconn, uint8 level, void *optarg)
sint8 ICACHE_FLASH_ATTR	espconn_get_keepalive (struct espconn *espconn, uint8 level, void *optarg)
sint8 ICACHE_FLASH_ATTR	espconn_delete (struct espconn *espconn)
uint32 ICACHE_FLASH_ATTR	espconn_port (void)
err_t ICACHE_FLASH_ATTR	espconn_gethostbyname (struct espconn *pespconn, const char *hostname, ip_addr_t *addr, dns_found_callback found)
void ICACHE_FLASH_ATTR	espconn_dns_setserver (u8_t numdns, ip_addr_t *dnsserver)

Variables
espconn_msg *	plink_active = NULL
espconn_msg *	pserver_list = NULL
remot_info	premot [linkMax]
struct espconn_packet	pktinfo [2]

Function Documentation

espconn_abort()

sint8 ICACHE_FLASH_ATTR espconn_abort

(

struct espconn *

espconn

)

Definition at line 972 of file espconn.c.

References ESPCONN_ARG, ESPCONN_CLOSE, espconn_find_connection(), ESPCONN_INPROGRESS, ESPCONN_OK, ESPCONN_TCP, espconn_tcp_disconnect(), ICACHE_FLASH_ATTR, NULL, and espconn::state.

Referenced by mqtt_tcpclient_delete().

{
    espconn_msg *pnode = NULL;
    bool value = false;

    if (espconn == NULL) {
        return ESPCONN_ARG;;
    } else if (espconn ->type != ESPCONN_TCP)
        return ESPCONN_ARG;

    /*Find the node depend on the espconn message*/
    value = espconn_find_connection(espconn, &pnode);

    if (value){
        /*protect for redisconnection*/
        if (espconn->state == ESPCONN_CLOSE)
            return ESPCONN_INPROGRESS;
        espconn_tcp_disconnect(pnode,1);    //1 force, 0 normal
        return ESPCONN_OK;
    } else
        return ESPCONN_ARG;
}

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espconn_accept()

sint8 ICACHE_FLASH_ATTR espconn_accept

(

struct espconn *

espconn

)

Definition at line 875 of file espconn.c.

References ESPCONN_ARG, ESPCONN_ISCONN, ESPCONN_OK, ESPCONN_TCP, espconn_tcp_server(), _esp_tcp::local_port, NULL, _espconn_msg::pespconn, plist, _espconn_msg::pnext, espconn::proto, espconn::tcp, and espconn::type.

Referenced by httpdInit().

{
    sint8 value = ESPCONN_OK;
    espconn_msg *plist = NULL;

    if (espconn == NULL) {
        return ESPCONN_ARG;
    } else if (espconn ->type != ESPCONN_TCP)
        return ESPCONN_ARG;

    /*check the active node information whether is the same as the entity or not*/
    for (plist = plink_active; plist != NULL; plist = plist->pnext){
        if (plist->pespconn && plist->pespconn->type == ESPCONN_TCP){
            if (espconn->proto.tcp->local_port == plist->pespconn->proto.tcp->local_port){
                return ESPCONN_ISCONN;
            }
        }
    }
    value = espconn_tcp_server(espconn);

    return value;
}

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espconn_clear_opt()

sint8 ICACHE_FLASH_ATTR espconn_clear_opt	(	struct espconn *	espconn,
		uint8	opt
	)

Definition at line 1092 of file espconn.c.

References ESPCONN_ARG, espconn_delay_enabled, espconn_find_connection(), espconn_keepalive_disable, espconn_keepalive_enabled, ESPCONN_OK, _comon_pkt::espconn_opt, ESPCONN_TCP, NULL, _comon_pkt::pcb, _espconn_msg::pcommon, and espconn::type.

{
    espconn_msg *pnode = NULL;
    struct tcp_pcb *tpcb;
    bool value = false;

    if (espconn == NULL) {
        return ESPCONN_ARG;;
    } else if (espconn->type != ESPCONN_TCP)
        return ESPCONN_ARG;

    /*Find the node depend on the espconn message*/
    value = espconn_find_connection(espconn, &pnode);
    if (value) {
        pnode->pcommon.espconn_opt &= ~opt;
        tpcb = pnode->pcommon.pcb;
        if (espconn_keepalive_enabled(pnode))
            espconn_keepalive_disable(tpcb);

        if (espconn_delay_enabled(pnode))
            tcp_nagle_enable(tpcb);

        return ESPCONN_OK;
    } else
        return ESPCONN_ARG;
}

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espconn_connect()

sint8 ICACHE_FLASH_ATTR espconn_connect

(

struct espconn *

espconn

)

Definition at line 260 of file espconn.c.

References ip_addr::addr, AP_NETIF, ESPCONN_AP, ESPCONN_AP_STA, ESPCONN_ARG, espconn_get_acticve_num(), ESPCONN_ISCONN, ESPCONN_OK, espconn_printf, ESPCONN_RTE, ESPCONN_STA, ESPCONN_TCP, espconn_tcp_client(), espconn_tcp_get_max_con(), ICACHE_FLASH_ATTR, ip_info::ip, IP4_ADDR, _esp_tcp::local_port, NULL, _espconn_msg::pespconn, plist, _espconn_msg::pnext, espconn::proto, _esp_tcp::remote_ip, STA_NETIF, STATION_GOT_IP, STATION_IDLE, espconn::tcp, espconn::type, wifi_get_ip_info(), wifi_get_opmode(), and wifi_station_get_connect_status().

Referenced by MQTT_Connect(), and mqtt_dns_found().

{
    struct ip_addr ipaddr;
    struct ip_info ipinfo;
    uint8 connect_status = 0;
    sint8 value = ESPCONN_OK;
    espconn_msg *plist = NULL;
    remot_info *pinfo = NULL;

    if (espconn == NULL) {
        return ESPCONN_ARG;
    } else if (espconn ->type != ESPCONN_TCP)
        return ESPCONN_ARG;

    /*Check the active node count whether is the limit or not*/
    if (espconn_get_acticve_num(ESPCONN_TCP) >= espconn_tcp_get_max_con())
        return ESPCONN_ISCONN;

    /*Check the IP address whether is zero or not in different mode*/
    if (wifi_get_opmode() == ESPCONN_STA){
        wifi_get_ip_info(STA_NETIF,&ipinfo);
        if (ipinfo.ip.addr == 0){
            return ESPCONN_RTE;
        }
    } else if(wifi_get_opmode() == ESPCONN_AP){
        wifi_get_ip_info(AP_NETIF,&ipinfo);
        if (ipinfo.ip.addr == 0){
            return ESPCONN_RTE;
        }
    } else if(wifi_get_opmode() == ESPCONN_AP_STA){
        IP4_ADDR(&ipaddr, espconn->proto.tcp->remote_ip[0],
                            espconn->proto.tcp->remote_ip[1],
                            espconn->proto.tcp->remote_ip[2],
                            espconn->proto.tcp->remote_ip[3]);
        ipaddr.addr <<= 8;
        wifi_get_ip_info(AP_NETIF,&ipinfo);
        ipinfo.ip.addr <<= 8;
        espconn_printf("softap_addr = %x, remote_addr = %x\n", ipinfo.ip.addr, ipaddr.addr);

        if (ipaddr.addr != ipinfo.ip.addr){
            connect_status = wifi_station_get_connect_status();
            if (connect_status == STATION_GOT_IP){
                wifi_get_ip_info(STA_NETIF,&ipinfo);
                if (ipinfo.ip.addr == 0)
                    return ESPCONN_RTE;
            } else if (connect_status == STATION_IDLE){
                return ESPCONN_RTE;
            } else {
                return connect_status;
            }
        }
    }

    /*check the active node information whether is the same as the entity or not*/
    for (plist = plink_active; plist != NULL; plist = plist->pnext){
        if (plist->pespconn && plist->pespconn->type == ESPCONN_TCP){
            if (espconn->proto.tcp->local_port == plist->pespconn->proto.tcp->local_port){
                return ESPCONN_ISCONN;
            }
        }
    }

    value = espconn_tcp_client(espconn);

    return value;
}

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espconn_copy_partial()

void ICACHE_FLASH_ATTR espconn_copy_partial	(	struct espconn *	pesp_dest,
		struct espconn *	pesp_source
	)

Definition at line 46 of file espconn.c.

References _esp_tcp::connect_callback, _esp_tcp::disconnect_callback, ESPCONN_TCP, espconn::link_cnt, _esp_tcp::local_ip, _esp_udp::local_ip, _esp_tcp::local_port, _esp_udp::local_port, os_memcpy, espconn::proto, _esp_tcp::reconnect_callback, espconn::recv_callback, _esp_tcp::remote_ip, _esp_udp::remote_ip, _esp_tcp::remote_port, _esp_udp::remote_port, espconn::reverse, espconn::sent_callback, espconn::state, espconn::tcp, espconn::type, and espconn::udp.

Referenced by espconn_tcp_accept(), espconn_tcp_disconnect_successful(), and espconn_tcp_reconnect().

{
    pesp_dest->type = pesp_source->type;
    pesp_dest->state = pesp_source->state;
    if (pesp_source->type == ESPCONN_TCP){
        pesp_dest->proto.tcp->remote_port = pesp_source->proto.tcp->remote_port;
        pesp_dest->proto.tcp->local_port = pesp_source->proto.tcp->local_port;
        os_memcpy(pesp_dest->proto.tcp->remote_ip, pesp_source->proto.tcp->remote_ip, 4);
        os_memcpy(pesp_dest->proto.tcp->local_ip, pesp_source->proto.tcp->local_ip, 4);
        pesp_dest->proto.tcp->connect_callback = pesp_source->proto.tcp->connect_callback;
        pesp_dest->proto.tcp->reconnect_callback = pesp_source->proto.tcp->reconnect_callback;
        pesp_dest->proto.tcp->disconnect_callback = pesp_source->proto.tcp->disconnect_callback;
    } else {
        pesp_dest->proto.udp->remote_port = pesp_source->proto.udp->remote_port;
        pesp_dest->proto.udp->local_port = pesp_source->proto.udp->local_port;
        os_memcpy(pesp_dest->proto.udp->remote_ip, pesp_source->proto.udp->remote_ip, 4);
        os_memcpy(pesp_dest->proto.udp->local_ip, pesp_source->proto.udp->local_ip, 4);
    }
    pesp_dest->recv_callback = pesp_source->recv_callback;
    pesp_dest->sent_callback = pesp_source->sent_callback;
    pesp_dest->link_cnt = pesp_source->link_cnt;
    pesp_dest->reverse = pesp_source->reverse;
}

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espconn_create()

sint8 ICACHE_FLASH_ATTR espconn_create

(

struct espconn *

espconn

)

Definition at line 334 of file espconn.c.

References ESPCONN_ARG, ESPCONN_ISCONN, ESPCONN_OK, ESPCONN_UDP, espconn_udp_server(), ICACHE_FLASH_ATTR, _esp_udp::local_port, NULL, _espconn_msg::pespconn, plist, _espconn_msg::pnext, espconn::proto, espconn::type, and espconn::udp.

Referenced by captdnsInit().

{
    sint8 value = ESPCONN_OK;
    espconn_msg *plist = NULL;

    if (espconn == NULL) {
        return ESPCONN_ARG;
    } else if (espconn ->type != ESPCONN_UDP){
        return ESPCONN_ARG;
    }

    /*check the active node information whether is the same as the entity or not*/
    for (plist = plink_active; plist != NULL; plist = plist->pnext){
        if (plist->pespconn && plist->pespconn->type == ESPCONN_UDP){
            if (espconn->proto.udp->local_port == plist->pespconn->proto.udp->local_port){
                return ESPCONN_ISCONN;
            }
        }
    }

    value = espconn_udp_server(espconn);

    return value;
}

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espconn_delete()

sint8 ICACHE_FLASH_ATTR espconn_delete

(

struct espconn *

espconn

)

Definition at line 1217 of file espconn.c.

References ESPCONN_ARG, espconn_find_connection(), ESPCONN_OK, espconn_tcp_delete(), ESPCONN_UDP, espconn_udp_disconnect(), ICACHE_FLASH_ATTR, and NULL.

Referenced by captdnsStop(), httpdStop(), and mqtt_tcpclient_delete().

{
    espconn_msg *pnode = NULL;
    bool value = false;

    if (espconn == NULL) {
        return ESPCONN_ARG;
    } else if (espconn ->type != ESPCONN_UDP)
        return espconn_tcp_delete(espconn);

    /*Find the node depend on the espconn message*/
    value = espconn_find_connection(espconn, &pnode);

    if (value){
        espconn_udp_disconnect(pnode);
        return ESPCONN_OK;
    } else
        return ESPCONN_ARG;
}

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espconn_disconnect()

sint8 ICACHE_FLASH_ATTR espconn_disconnect

(

struct espconn *

espconn

)

Definition at line 942 of file espconn.c.

References ESPCONN_ARG, ESPCONN_CLOSE, espconn_find_connection(), ESPCONN_INPROGRESS, ESPCONN_OK, ESPCONN_TCP, espconn_tcp_disconnect(), ICACHE_FLASH_ATTR, NULL, and espconn::state.

Referenced by httpdConnectCb(), httpdSentCb(), httpdStop(), MQTT_Task(), and mqtt_tcpclient_recv().

{
    espconn_msg *pnode = NULL;
    bool value = false;

    if (espconn == NULL) {
        return ESPCONN_ARG;;
    } else if (espconn ->type != ESPCONN_TCP)
        return ESPCONN_ARG;

    /*Find the node depend on the espconn message*/
    value = espconn_find_connection(espconn, &pnode);

    if (value){
        /*protect for redisconnection*/
        if (espconn->state == ESPCONN_CLOSE)
            return ESPCONN_INPROGRESS;
        espconn_tcp_disconnect(pnode,0);    //1 force, 0 normal
        return ESPCONN_OK;
    } else
        return ESPCONN_ARG;
}

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espconn_dns_setserver()

void ICACHE_FLASH_ATTR espconn_dns_setserver	(	u8_t	numdns,
		ip_addr_t *	dnsserver
	)

Definition at line 1302 of file espconn.c.

Referenced by wifi_softap_ip_config().

{
    dns_setserver(numdns,dnsserver);
}

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espconn_find_connection()

bool ICACHE_FLASH_ATTR espconn_find_connection	(	struct espconn *	pespconn,
		espconn_msg **	pnode
	)

Definition at line 186 of file espconn.c.

References ip_addr::addr, ICACHE_FLASH_ATTR, IP4_ADDR, IPADDR_ANY, NULL, _espconn_msg::pcommon, _espconn_msg::pespconn, plist, _espconn_msg::pnext, espconn::proto, _esp_tcp::remote_ip, _comon_pkt::remote_ip, _esp_tcp::remote_port, _comon_pkt::remote_port, and espconn::tcp.

Referenced by espconn_abort(), espconn_clear_opt(), espconn_delete(), espconn_disconnect(), espconn_get_keepalive(), espconn_get_packet_info(), espconn_recv_hold(), espconn_recv_unhold(), espconn_regist_time(), espconn_sendto(), espconn_sent(), espconn_set_keepalive(), and espconn_set_opt().

{
    espconn_msg *plist = NULL;
    struct ip_addr ip_remot;
    struct ip_addr ip_list;

    if (pespconn == NULL)
        return false;

    /*find the active connection node*/
    for (plist = plink_active; plist != NULL; plist = plist->pnext){
        if (pespconn == plist->pespconn) {
            *pnode = plist;
            return true;
        }
    }

    /*find the active server node*/
    for (plist = pserver_list; plist != NULL; plist = plist->pnext){
        if (pespconn == plist->pespconn) {
            if (pespconn->proto.tcp == NULL)
                return false;

            IP4_ADDR(&ip_remot, pespconn->proto.tcp->remote_ip[0],
                    pespconn->proto.tcp->remote_ip[1],
                    pespconn->proto.tcp->remote_ip[2],
                    pespconn->proto.tcp->remote_ip[3]);
            if ((ip_remot.addr == IPADDR_ANY) || (pespconn->proto.tcp->remote_port == 0))
                return false;

            /*find the active connection node*/
            for (plist = plink_active; plist != NULL; plist = plist->pnext){
                IP4_ADDR(&ip_list, plist->pcommon.remote_ip[0],
                        plist->pcommon.remote_ip[1], plist->pcommon.remote_ip[2],
                        plist->pcommon.remote_ip[3]);
                if ((ip_list.addr == ip_remot.addr) && (pespconn->proto.tcp->remote_port == plist->pcommon.remote_port)) {
                    *pnode = plist;
                    return true;
                }
            }
            return false;
        }
    }
    return false;
}

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espconn_get_acticve_num()

static uint8 ICACHE_FLASH_ATTR espconn_get_acticve_num ( uint8  type )

static

Definition at line 239 of file espconn.c.

References ICACHE_FLASH_ATTR, NULL, _espconn_msg::pespconn, plist, _espconn_msg::pnext, and espconn::type.

Referenced by espconn_connect().

{
    espconn_msg *plist = NULL;
    uint8 num_tcp_active = 0;

    for (plist = plink_active; plist != NULL; plist = plist->pnext) {
        if (plist->pespconn != NULL && plist->pespconn->type == type) {
            num_tcp_active++;
        }
    }

    return num_tcp_active;
}

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espconn_get_connection_info()

sint8 ICACHE_FLASH_ATTR espconn_get_connection_info	(	struct espconn *	pespconn,
		remot_info **	pcon_info,
		uint8	typeflags
	)

Definition at line 825 of file espconn.c.

References ESPCONN_ARG, ESPCONN_OK, ESPCONN_TCP, ESPCONN_UDP, ICACHE_FLASH_ATTR, espconn::link_cnt, NULL, os_memcpy, os_memset, _espconn_msg::pcommon, _espconn_msg::pespconn, plink_active, plist, _espconn_msg::pnext, premot, _espconn_msg::preverse, _remot_info::remote_ip, _comon_pkt::remote_ip, _remot_info::remote_port, _comon_pkt::remote_port, _remot_info::state, espconn::state, and espconn::type.

Referenced by captdnsRecv(), espconn_tcp_accept(), and espconn_tcp_delete().

{
    espconn_msg *plist = NULL;

    if (pespconn == NULL)
        return ESPCONN_ARG;

    os_memset(premot, 0, sizeof(premot));
    pespconn->link_cnt = 0;
    plist = plink_active;
    switch (pespconn->type){
        case ESPCONN_TCP:
            while(plist != NULL){
                if (plist->preverse == pespconn){
                    premot[pespconn->link_cnt].state = plist->pespconn->state;
                    premot[pespconn->link_cnt].remote_port = plist->pcommon.remote_port;
                    os_memcpy(premot[pespconn->link_cnt].remote_ip, plist->pcommon.remote_ip, 4);
                    pespconn->link_cnt ++;
                }
                plist = plist->pnext;
            }

            break;
        case ESPCONN_UDP:
            while(plist != NULL){
                if (plist->pespconn == pespconn){
                    premot[pespconn->link_cnt].state = plist->pespconn->state;
                    premot[pespconn->link_cnt].remote_port = plist->pcommon.remote_port;
                    os_memcpy(premot[pespconn->link_cnt].remote_ip, plist->pcommon.remote_ip, 4);
                    pespconn->link_cnt ++;
                }
                plist = plist->pnext;
            }
            break;
        default:
            break;
    }
    *pcon_info = premot;
    if (pespconn->link_cnt == 0)
        return ESPCONN_ARG;
    return ESPCONN_OK;
}

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espconn_get_keepalive()

sint8 ICACHE_FLASH_ATTR espconn_get_keepalive	(	struct espconn *	espconn,
		uint8	level,
		void *	optarg
	)

Definition at line 1173 of file espconn.c.

References ESPCONN_ARG, espconn_find_connection(), espconn_keepalive_disabled, ESPCONN_KEEPCNT, ESPCONN_KEEPIDLE, ESPCONN_KEEPINTVL, ESPCONN_OK, ESPCONN_TCP, ICACHE_FLASH_ATTR, NULL, _comon_pkt::pcb, _espconn_msg::pcommon, and espconn::type.

{
    espconn_msg *pnode = NULL;
    bool value = false;
    sint8 ret = ESPCONN_OK;

    if (espconn == NULL || optarg == NULL) {
        return ESPCONN_ARG;;
    } else if (espconn->type != ESPCONN_TCP)
        return ESPCONN_ARG;

    /*Find the node depend on the espconn message*/
    value = espconn_find_connection(espconn, &pnode);
    if (value && espconn_keepalive_disabled(pnode)) {
        struct tcp_pcb *pcb = pnode->pcommon.pcb;
        switch (level) {
        case ESPCONN_KEEPIDLE:
            *(int*)optarg = (int)(pcb->keep_idle/1000);
            ret = ESPCONN_OK;
            break;
        case ESPCONN_KEEPINTVL:
            *(int*)optarg = (int)(pcb->keep_intvl/1000);
            ret = ESPCONN_OK;
            break;
        case ESPCONN_KEEPCNT:
            *(int*)optarg = (int)(pcb->keep_cnt);
            ret = ESPCONN_OK;
            break;
        default:
            ret = ESPCONN_ARG;
            break;
        }
        return ret;
    } else
        return ESPCONN_ARG;
}

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espconn_get_packet_info()

sint8 ICACHE_FLASH_ATTR espconn_get_packet_info	(	struct espconn *	espconn,
		struct espconn_packet *	infoarg
	)

Definition at line 1004 of file espconn.c.

References ESPCONN_ARG, ESPCONN_CLOSE, espconn_find_connection(), ESPCONN_NONE, ESPCONN_OK, ESPCONN_TCP, ICACHE_FLASH_ATTR, NULL, os_memcpy, _comon_pkt::packet_info, espconn_packet::packseq_nxt, espconn_packet::packseqno, _comon_pkt::pcb, _espconn_msg::pcommon, pktinfo, espconn_packet::snd_buf_size, espconn_packet::snd_queuelen, espconn::state, TCP_SND_QUEUELEN, espconn_packet::total_queuelen, and espconn::type.

{
    espconn_msg *pnode = NULL;
    err_t err;
    bool value = false;

    if (espconn == NULL || infoarg == NULL) {
        return ESPCONN_ARG;;
    } else if (espconn->type != ESPCONN_TCP)
        return ESPCONN_ARG;

    /*Find the node depend on the espconn message*/
    value = espconn_find_connection(espconn, &pnode);
    if (value) {
        struct tcp_pcb *pcb = pnode->pcommon.pcb;
        if (pcb == NULL)
            return ESPCONN_ARG;

        pnode->pcommon.packet_info.packseq_nxt = pcb->rcv_nxt;
        pnode->pcommon.packet_info.packseqno = pcb->snd_nxt;
        pnode->pcommon.packet_info.snd_buf_size = pcb->snd_buf;
        pnode->pcommon.packet_info.total_queuelen = TCP_SND_QUEUELEN;
        pnode->pcommon.packet_info.snd_queuelen = pnode->pcommon.packet_info.total_queuelen - pcb->snd_queuelen;
        os_memcpy(infoarg,(void*)&pnode->pcommon.packet_info, sizeof(struct espconn_packet));
        return ESPCONN_OK;
    } else {
        switch (espconn->state){
            case ESPCONN_CLOSE:
                os_memcpy(infoarg,(void*)&pktinfo[0], sizeof(struct espconn_packet));
                err = ESPCONN_OK;
                break;
            case ESPCONN_NONE:
                os_memcpy(infoarg,(void*)&pktinfo[1], sizeof(struct espconn_packet));
                err = ESPCONN_OK;
                break;
            default:
                err = ESPCONN_ARG;
                break;
        }
        return err;
    }
}

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espconn_gethostbyname()

err_t ICACHE_FLASH_ATTR espconn_gethostbyname	(	struct espconn *	pespconn,
		const char *	hostname,
		ip_addr_t *	addr,
		dns_found_callback	found
	)

Definition at line 1288 of file espconn.c.

References ICACHE_FLASH_ATTR.

Referenced by MQTT_Connect().

{
    return dns_gethostbyname(hostname, addr, found, pespconn);
}

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espconn_list_creat()

void ICACHE_FLASH_ATTR espconn_list_creat	(	espconn_msg **	phead,
		espconn_msg *	pinsert
	)

Definition at line 76 of file espconn.c.

References NULL, plist, and _espconn_msg::pnext.

Referenced by espconn_tcp_accept(), espconn_tcp_client(), espconn_tcp_server(), and espconn_udp_server().

{
    espconn_msg *plist = NULL;
//  espconn_msg *ptest = NULL;
    if (*phead == NULL)
        *phead = pinsert;
    else {
        plist = *phead;
        while (plist->pnext != NULL) {
            plist = plist->pnext;
        }
        plist->pnext = pinsert;
    }
    pinsert->pnext = NULL;

/*  ptest = *phead;
    while(ptest != NULL){
        os_printf("espconn_list_creat %p\n", ptest);
        ptest = ptest->pnext;
    }*/
}

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espconn_list_delete()

void ICACHE_FLASH_ATTR espconn_list_delete	(	espconn_msg **	phead,
		espconn_msg *	pdelete
	)

Definition at line 104 of file espconn.c.

References NULL, plist, and _espconn_msg::pnext.

Referenced by espconn_Task(), espconn_tcp_client(), espconn_tcp_delete(), and espconn_udp_disconnect().

{
    espconn_msg *plist = NULL;
//  espconn_msg *ptest = NULL;
    plist = *phead;
    if (plist == NULL){
        *phead = NULL;
    } else {
        if (plist == pdelete){
            *phead = plist->pnext;
        } else {
            while (plist != NULL) {
                if (plist->pnext == pdelete){
                    plist->pnext = pdelete->pnext;
                }
                plist = plist->pnext;
            }
        }
    }
/*  ptest = *phead;
    while(ptest != NULL){
        os_printf("espconn_list_delete %p\n", ptest);
        ptest = ptest->pnext;
    }*/
}

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espconn_pbuf_create()

void ICACHE_FLASH_ATTR espconn_pbuf_create	(	espconn_buf **	phead,
		espconn_buf *	pinsert
	)

Definition at line 136 of file espconn.c.

References NULL, plist, and _espconn_buf::pnext.

Referenced by espconn_sent().

{
    espconn_buf *plist = NULL;

    if (*phead == NULL)
        *phead = pinsert;
    else {
        plist = *phead;
        while (plist->pnext != NULL) {
            plist = plist->pnext;
        }
        plist->pnext = pinsert;
    }
    pinsert->pnext = NULL;
}

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espconn_pbuf_delete()

void ICACHE_FLASH_ATTR espconn_pbuf_delete	(	espconn_buf **	phead,
		espconn_buf *	pdelete
	)

Definition at line 158 of file espconn.c.

References NULL, plist, and _espconn_buf::pnext.

Referenced by espconn_tcp_disconnect_successful(), espconn_tcp_finish(), and espconn_tcp_reconnect().

{
    espconn_buf *plist = NULL;

    plist = *phead;
    if (plist == NULL){
        *phead = NULL;
    } else {
        if (plist == pdelete){
            *phead = plist->pnext;
        } else {
            while (plist != NULL) {
                if (plist->pnext == pdelete){
                    plist->pnext = pdelete->pnext;
                }
                plist = plist->pnext;
            }
        }
    }
}

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espconn_port()

uint32 ICACHE_FLASH_ATTR espconn_port

(

void

)

Definition at line 1245 of file espconn.c.

References ICACHE_FLASH_ATTR, and os_random().

Referenced by MQTT_Connect().

{
    uint32 port = 0;
    static uint32 randnum = 0;

    do {
        port = os_random();

        if (port < 0) {
            port = os_random() - port;
        }

        port %= 0xc350;

        if (port < 0x400) {
            port += 0x400;
        }

    } while (port == randnum);

    randnum = port;

    return port;
}

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espconn_regist_connectcb()

sint8 ICACHE_FLASH_ATTR espconn_regist_connectcb	(	struct espconn *	espconn,
		espconn_connect_callback	connect_cb
	)

Definition at line 751 of file espconn.c.

References _esp_tcp::connect_callback, ESPCONN_ARG, ESPCONN_OK, ICACHE_FLASH_ATTR, NULL, espconn::proto, and espconn::tcp.

Referenced by httpdInit(), and MQTT_Connect().

{
    if (espconn == NULL) {
        return ESPCONN_ARG;
    }

    espconn->proto.tcp->connect_callback = connect_cb;
    return ESPCONN_OK;
}

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espconn_regist_disconcb()

sint8 ICACHE_FLASH_ATTR espconn_regist_disconcb	(	struct espconn *	espconn,
		espconn_connect_callback	discon_cb
	)

Definition at line 807 of file espconn.c.

References _esp_tcp::disconnect_callback, ESPCONN_ARG, ESPCONN_OK, ICACHE_FLASH_ATTR, NULL, espconn::proto, and espconn::tcp.

Referenced by httpdConnectCb(), and mqtt_tcpclient_connect_cb().

{
    if (espconn == NULL) {
        return ESPCONN_ARG;
    }

    espconn ->proto.tcp->disconnect_callback = discon_cb;
    return ESPCONN_OK;
}

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espconn_regist_reconcb()

sint8 ICACHE_FLASH_ATTR espconn_regist_reconcb	(	struct espconn *	espconn,
		espconn_reconnect_callback	recon_cb
	)

Definition at line 789 of file espconn.c.

References ESPCONN_ARG, ESPCONN_OK, ICACHE_FLASH_ATTR, NULL, espconn::proto, _esp_tcp::reconnect_callback, and espconn::tcp.

Referenced by httpdConnectCb(), and MQTT_Connect().

{
    if (espconn == NULL) {
        return ESPCONN_ARG;
    }

    espconn ->proto.tcp->reconnect_callback = recon_cb;
    return ESPCONN_OK;
}

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espconn_regist_recvcb()

sint8 ICACHE_FLASH_ATTR espconn_regist_recvcb	(	struct espconn *	espconn,
		espconn_recv_callback	recv_cb
	)

Definition at line 770 of file espconn.c.

References ESPCONN_ARG, ESPCONN_OK, ICACHE_FLASH_ATTR, NULL, and espconn::recv_callback.

Referenced by captdnsInit(), httpdConnectCb(), and mqtt_tcpclient_connect_cb().

{
    if (espconn == NULL) {
        return ESPCONN_ARG;
    }

    espconn ->recv_callback = recv_cb;
    return ESPCONN_OK;
}

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espconn_regist_sentcb()

sint8 ICACHE_FLASH_ATTR espconn_regist_sentcb	(	struct espconn *	espconn,
		espconn_sent_callback	sent_cb
	)

Definition at line 712 of file espconn.c.

References ESPCONN_ARG, ESPCONN_OK, ICACHE_FLASH_ATTR, NULL, and espconn::sent_callback.

Referenced by httpdConnectCb(), and mqtt_tcpclient_connect_cb().

{
    if (espconn == NULL) {
        return ESPCONN_ARG;
    }

    espconn ->sent_callback = sent_cb;
    return ESPCONN_OK;
}

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espconn_regist_time()

sint8 ICACHE_FLASH_ATTR espconn_regist_time	(	struct espconn *	espconn,
		uint32	interval,
		uint8	type_flag
	)

Definition at line 905 of file espconn.c.

References ESPCONN_ARG, espconn_find_connection(), ESPCONN_OK, ICACHE_FLASH_ATTR, NULL, _espconn_msg::pcommon, _espconn_msg::pespconn, _espconn_msg::pnext, pserver_list, and _comon_pkt::timeout.

{
    espconn_msg *pnode = NULL;
    espconn_msg *ptime_msg = NULL;
    bool value = false;
    if ((espconn == NULL) || (type_flag > 0x01))
        return ESPCONN_ARG;

    if (type_flag == 0x01){
        /*set the timeout time for one active connection of the server*/
        value = espconn_find_connection(espconn, &pnode);
        if (value){
            pnode->pcommon.timeout = interval;
            return ESPCONN_OK;
        } else
            return ESPCONN_ARG;
    } else {
        /*set the timeout time for all active connection of the server*/
        ptime_msg = pserver_list;
        while (ptime_msg != NULL){
            if (ptime_msg->pespconn == espconn){
                ptime_msg->pcommon.timeout = interval;
                return ESPCONN_OK;
            }
            ptime_msg = ptime_msg->pnext;
        }
    }
    return ESPCONN_ARG;
}

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espconn_regist_write_finish()

sint8 ICACHE_FLASH_ATTR espconn_regist_write_finish	(	struct espconn *	espconn,
		espconn_connect_callback	write_finish_fn
	)

Definition at line 732 of file espconn.c.

References ESPCONN_ARG, ESPCONN_OK, ESPCONN_UDP, ICACHE_FLASH_ATTR, NULL, espconn::proto, espconn::tcp, espconn::type, and _esp_tcp::write_finish_fn.

{
    if (espconn == NULL || espconn ->proto.tcp == NULL || espconn->type == ESPCONN_UDP) {
        return ESPCONN_ARG;
    }

    espconn ->proto.tcp->write_finish_fn = write_finish_fn;
    return ESPCONN_OK;
}

espconn_send()

sint8 espconn_send	(	struct espconn *	espconn,
		uint8 *	psent,
		uint16	length
	)

Referenced by espconn_sendto(), mqtt_send_keepalive(), MQTT_Task(), and mqtt_tcpclient_connect_cb().

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espconn_sendto()

sint16 ICACHE_FLASH_ATTR espconn_sendto	(	struct espconn *	espconn,
		uint8 *	psent,
		uint16	length
	)

Definition at line 448 of file espconn.c.

References __attribute__(), ESPCONN_ARG, espconn_find_connection(), ESPCONN_OK, espconn_send(), ESPCONN_UDP, espconn_udp_sendto(), NULL, and espconn::type.

Referenced by captdnsRecv().

{
    espconn_msg *pnode = NULL;
    bool value = false;
    err_t error = ESPCONN_OK;

    if (espconn == NULL || psent == NULL || length == 0) {
        return ESPCONN_ARG;
    }

    /*Find the node depend on the espconn message*/
    value = espconn_find_connection(espconn, &pnode);
    if (value && espconn->type == ESPCONN_UDP)
        return espconn_udp_sendto(pnode, psent, length);
    else
        return ESPCONN_ARG;
}

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espconn_sent()

sint8 ICACHE_FLASH_ATTR espconn_sent	(	struct espconn *	espconn,
		uint8 *	psent,
		uint16	length
	)

Definition at line 368 of file espconn.c.

References ESPCONN_ARG, espconn_copy_disabled, espconn_copy_enabled, espconn_find_connection(), ESPCONN_MAXNUM, ESPCONN_MEM, ESPCONN_OK, espconn_pbuf_create(), ESPCONN_TCP, espconn_tcp_get_buf_count(), espconn_tcp_write(), ESPCONN_UDP, espconn_udp_sent(), ESPCONN_WRITE, ICACHE_FLASH_ATTR, _espconn_buf::len, NULL, os_zalloc, _espconn_buf::payload, _comon_pkt::pbuf, _comon_pkt::pbuf_num, _comon_pkt::pcb, _espconn_msg::pcommon, _comon_pkt::ptail, _espconn_buf::punsent, espconn::state, TCP_SND_QUEUELEN, _espconn_buf::unsent, and _comon_pkt::write_flag.

Referenced by cgiEspFsHook(), and xmitSendBuff().

{
    espconn_msg *pnode = NULL;
    bool value = false;
    err_t error = ESPCONN_OK;
    
    if (espconn == NULL || psent == NULL || length == 0) {
        return ESPCONN_ARG;
    }

    /*Find the node depend on the espconn message*/
    value = espconn_find_connection(espconn, &pnode);

    if (value){
        espconn ->state = ESPCONN_WRITE;
        switch (espconn ->type) {
            case ESPCONN_TCP:
                /* calling sent function frequently,make sure last packet has been backup or sent fully*/
                if (pnode->pcommon.write_flag){
                    espconn_buf *pbuf = NULL;
                    /*If total number of espconn_buf on the unsent lists exceeds the set maximum, return an error */
                    if (espconn_copy_enabled(pnode)){
                        if (espconn_tcp_get_buf_count(pnode->pcommon.pbuf) >= pnode ->pcommon.pbuf_num)
                            return ESPCONN_MAXNUM;
                    } else {
                        struct tcp_pcb *pcb = pnode->pcommon.pcb;
                        if (pcb->snd_queuelen >= TCP_SND_QUEUELEN)
                            return ESPCONN_MAXNUM;
                    }

                    pbuf = (espconn_buf*) os_zalloc(sizeof(espconn_buf));
                    if (pbuf == NULL)
                        return ESPCONN_MEM;
                    else {
                        /*Backup the application packet information for send more data*/
                        pbuf->payload = psent;
                        pbuf->punsent = pbuf->payload;
                        pbuf->unsent = length;
                        pbuf->len = length;
                        /*insert the espconn_pbuf to the list*/
                        espconn_pbuf_create(&pnode->pcommon.pbuf, pbuf);
                        if (pnode->pcommon.ptail == NULL)
                            pnode->pcommon.ptail = pbuf;
                    }
                    /*when set the data copy option. change the flag for next packet*/
                    if (espconn_copy_disabled(pnode))
                        pnode->pcommon.write_flag = false;
                    error = espconn_tcp_write(pnode);
//                  if (error != ESPCONN_OK){
//                      /*send the application packet fail,
//                       * ensure that each allocated is deleted*/
//                      espconn_pbuf_delete(&pnode->pcommon.pbuf, pbuf);
//                      os_free(pbuf);
//                      pbuf = NULL;
//                  }
                    return error;
                } else
                    return ESPCONN_ARG;
                break;

            case ESPCONN_UDP:
                return espconn_udp_sent(pnode, psent, length);
                break;

            default :
                break;
        }
    }
    return ESPCONN_ARG;
}

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espconn_set_keepalive()

sint8 ICACHE_FLASH_ATTR espconn_set_keepalive	(	struct espconn *	espconn,
		uint8	level,
		void *	optarg
	)

Definition at line 1128 of file espconn.c.

References ESPCONN_ARG, espconn_find_connection(), espconn_keepalive_disabled, ESPCONN_KEEPCNT, ESPCONN_KEEPIDLE, ESPCONN_KEEPINTVL, ESPCONN_OK, ESPCONN_TCP, NULL, _comon_pkt::pcb, _espconn_msg::pcommon, and espconn::type.

Referenced by MQTT_Connect().

{
    espconn_msg *pnode = NULL;
    bool value = false;
    sint8 ret = ESPCONN_OK;

    if (espconn == NULL || optarg == NULL) {
        return ESPCONN_ARG;;
    } else if (espconn->type != ESPCONN_TCP)
        return ESPCONN_ARG;

    /*Find the node depend on the espconn message*/
    value = espconn_find_connection(espconn, &pnode);
    if (value && espconn_keepalive_disabled(pnode)) {
        struct tcp_pcb *pcb = pnode->pcommon.pcb;
        switch (level){
            case ESPCONN_KEEPIDLE:
                pcb->keep_idle = 1000 * (u32_t)(*(int*)optarg);
                ret = ESPCONN_OK;
                break;
            case ESPCONN_KEEPINTVL:
                pcb->keep_intvl = 1000 * (u32_t)(*(int*)optarg);
                ret = ESPCONN_OK;
                break;
            case ESPCONN_KEEPCNT:
                pcb->keep_cnt = (u32_t)(*(int*)optarg);
                ret = ESPCONN_OK;
                break;
            default:
                ret = ESPCONN_ARG;
                break;
        }
        return ret;
    } else
        return ESPCONN_ARG;
}

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espconn_set_opt()

sint8 ICACHE_FLASH_ATTR espconn_set_opt	(	struct espconn *	espconn,
		uint8	opt
	)

Definition at line 1056 of file espconn.c.

References ESPCONN_ARG, espconn_delay_disabled, espconn_find_connection(), espconn_keepalive_disabled, espconn_keepalive_enable, ESPCONN_OK, _comon_pkt::espconn_opt, ESPCONN_TCP, ICACHE_FLASH_ATTR, NULL, _comon_pkt::pcb, _espconn_msg::pcommon, and espconn::type.

Referenced by MQTT_Connect().

{
    espconn_msg *pnode = NULL;
    struct tcp_pcb *tpcb;
    bool value = false;

    if (espconn == NULL) {
        return ESPCONN_ARG;;
    } else if (espconn->type != ESPCONN_TCP)
        return ESPCONN_ARG;

    /*Find the node depend on the espconn message*/
    value = espconn_find_connection(espconn, &pnode);
    if (value) {
        pnode->pcommon.espconn_opt |= opt;
        tpcb = pnode->pcommon.pcb;
        if (espconn_delay_disabled(pnode))
            tcp_nagle_disable(tpcb);

        if (espconn_keepalive_disabled(pnode))
            espconn_keepalive_enable(tpcb);

        return ESPCONN_OK;
    } else
        return ESPCONN_ARG;
}

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espconn_tcp_get_buf_count()

static uint8 ICACHE_FLASH_ATTR espconn_tcp_get_buf_count ( espconn_buf *  pesp_buf )

static

Definition at line 689 of file espconn.c.

References ICACHE_FLASH_ATTR, NULL, and _espconn_buf::pnext.

Referenced by espconn_sent().

{
    espconn_buf *pbuf_list = pesp_buf;
    uint8 pbuf_num = 0;

    /*polling the list get the count of the current node*/
    while (pbuf_list != NULL){
        pbuf_list = pbuf_list->pnext;
        pbuf_num ++;
    }
    return pbuf_num;
}

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espconn_tcp_get_max_con()

uint8 ICACHE_FLASH_ATTR espconn_tcp_get_max_con

(

void

)

Definition at line 528 of file espconn.c.

References MEMP_NUM_TCP_PCB.

Referenced by espconn_connect().

{
    uint8 tcp_num = 0;

    tcp_num = MEMP_NUM_TCP_PCB;

    return tcp_num;
}

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espconn_tcp_get_max_con_allow()

sint8 ICACHE_FLASH_ATTR espconn_tcp_get_max_con_allow

(

struct espconn *

espconn

)

Definition at line 618 of file espconn.c.

References _espconn_msg::count_opt, ESPCONN_ARG, ESPCONN_UDP, NULL, _espconn_msg::pespconn, _espconn_msg::pnext, pserver_list, and espconn::type.

Referenced by espconn_tcp_accept().

{
    espconn_msg *pget_msg = NULL;
    if ((espconn == NULL) || (espconn->type == ESPCONN_UDP))
        return ESPCONN_ARG;

    pget_msg = pserver_list;
    while (pget_msg != NULL){
        if (pget_msg->pespconn == espconn){
            return pget_msg->count_opt;
        }
        pget_msg = pget_msg->pnext;
    }
    return ESPCONN_ARG;
}

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espconn_tcp_get_max_retran()

uint8 ICACHE_FLASH_ATTR espconn_tcp_get_max_retran

(

void

)

Definition at line 558 of file espconn.c.

References TCP_MAXRTX.

{
    uint8 tcp_num = 0;

    tcp_num = TCP_MAXRTX;

    return tcp_num;
}

espconn_tcp_get_max_syn()

uint8 ICACHE_FLASH_ATTR espconn_tcp_get_max_syn

(

void

)

Definition at line 588 of file espconn.c.

References TCP_SYNMAXRTX.

{
    uint8 tcp_num = 0;

    tcp_num = TCP_SYNMAXRTX;

    return tcp_num;
}

espconn_tcp_get_mss()

uint16 ICACHE_FLASH_ATTR espconn_tcp_get_mss

(

void

)

Definition at line 513 of file espconn.c.

References TCP_MSS.

{
    uint16 tcp_num = 0;

    tcp_num = TCP_MSS;

    return tcp_num;
}

espconn_tcp_get_wnd()

uint8 ICACHE_FLASH_ATTR espconn_tcp_get_wnd

(

void

)

Definition at line 483 of file espconn.c.

References TCP_MSS, and TCP_WND.

{
    uint8 tcp_num = 0;

    tcp_num = (TCP_WND / TCP_MSS);

    return tcp_num;
}

espconn_tcp_set_buf_count()

sint8 ICACHE_FLASH_ATTR espconn_tcp_set_buf_count	(	struct espconn *	espconn,
		uint8	num
	)

Definition at line 665 of file espconn.c.

References ESPCONN_ARG, ESPCONN_OK, ESPCONN_TCP, NULL, _comon_pkt::pbuf_num, _espconn_msg::pcommon, _espconn_msg::pespconn, plist, _espconn_msg::pnext, TCP_SND_QUEUELEN, and espconn::type.

Referenced by espconn_client_connect(), and espconn_tcp_accept().

{
    espconn_msg *plist = NULL;
    if (espconn == NULL || (num > TCP_SND_QUEUELEN))
        return ESPCONN_ARG;

    /*find the node from the active connection list*/
    for (plist = plink_active; plist != NULL; plist = plist->pnext){
        if (plist->pespconn && plist->pespconn == espconn && espconn->type == ESPCONN_TCP){
            plist->pcommon.pbuf_num = num;
            return ESPCONN_OK;
        }
    }

    if (plist == NULL)
        return ESPCONN_ARG;
}

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espconn_tcp_set_max_con()

sint8 ICACHE_FLASH_ATTR espconn_tcp_set_max_con

(

uint8

num

)

Definition at line 543 of file espconn.c.

References ESPCONN_ARG, ESPCONN_OK, linkMax, and MEMP_NUM_TCP_PCB.

{
    if (num == 0 || num > linkMax)
        return ESPCONN_ARG;

    MEMP_NUM_TCP_PCB = num;
    return ESPCONN_OK;
}

espconn_tcp_set_max_con_allow()

sint8 ICACHE_FLASH_ATTR espconn_tcp_set_max_con_allow	(	struct espconn *	espconn,
		uint8	num
	)

Definition at line 640 of file espconn.c.

References _espconn_msg::count_opt, ESPCONN_ARG, ESPCONN_OK, ESPCONN_UDP, MEMP_NUM_TCP_PCB, NULL, _espconn_msg::pespconn, _espconn_msg::pnext, pserver_list, and espconn::type.

{
    espconn_msg *pset_msg = NULL;
    if ((espconn == NULL) || (num > MEMP_NUM_TCP_PCB) || (espconn->type == ESPCONN_UDP))
        return ESPCONN_ARG;

    pset_msg = pserver_list;
    while (pset_msg != NULL){
        if (pset_msg->pespconn == espconn){
            pset_msg->count_opt = num;
            return ESPCONN_OK;
        }
        pset_msg = pset_msg->pnext;
    }
    return ESPCONN_ARG;
}

espconn_tcp_set_max_retran()

sint8 ICACHE_FLASH_ATTR espconn_tcp_set_max_retran

(

uint8

num

)

Definition at line 573 of file espconn.c.

References ESPCONN_ARG, ESPCONN_OK, and TCP_MAXRTX.

{
    if (num == 0 || num > 12)
        return ESPCONN_ARG;

    TCP_MAXRTX = num;
    return ESPCONN_OK;
}

espconn_tcp_set_max_syn()

sint8 ICACHE_FLASH_ATTR espconn_tcp_set_max_syn

(

uint8

num

)

Definition at line 603 of file espconn.c.

References ESPCONN_ARG, ESPCONN_OK, and TCP_SYNMAXRTX.

{
    if (num == 0 || num > 12)
        return ESPCONN_ARG;

    TCP_SYNMAXRTX = num;
    return ESPCONN_OK;
}

espconn_tcp_set_wnd()

sint8 ICACHE_FLASH_ATTR espconn_tcp_set_wnd

(

uint8

num

)

Definition at line 498 of file espconn.c.

References ESPCONN_ARG, ESPCONN_OK, linkMax, TCP_MSS, and TCP_WND.

{
    if (num == 0 || num > linkMax)
        return ESPCONN_ARG;

    TCP_WND = (num * TCP_MSS);
    return ESPCONN_OK;
}

Variable Documentation

pktinfo

struct espconn_packet pktinfo[2]

Definition at line 36 of file espconn.c.

Referenced by espconn_get_packet_info(), espconn_tcp_disconnect_successful(), and espconn_tcp_reconnect().

plink_active

espconn_msg* plink_active = NULL

Definition at line 32 of file espconn.c.

Referenced by espconn_get_connection_info().

premot

remot_info premot[linkMax]

Definition at line 34 of file espconn.c.

Referenced by espconn_get_connection_info().

pserver_list

espconn_msg* pserver_list = NULL

Definition at line 33 of file espconn.c.

Referenced by espconn_regist_time(), espconn_server_poll(), espconn_tcp_delete(), espconn_tcp_get_max_con_allow(), and espconn_tcp_set_max_con_allow().