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get tcp working

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This commit is contained in:
Travis Shears 2025-12-21 20:44:11 +01:00
parent f107bfb55b
commit 65ad286add
Signed by: travisshears
GPG key ID: CB9BF1910F3F7469
2 changed files with 23 additions and 28 deletions
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14
node1.c
View file

@ -145,13 +145,13 @@ static bool cb_30(__unused struct repeating_timer *t) {
current_bem280_reading.humidity);
printf("Sending data to backend server...\n");
printf("MSG: %s", msg);
// bool success = tcp_client_send_message(&tcp_config, msg);
// if (success) {
// printf("✓ Data sent successfully\n");
// comms_led_blink();
// } else {
// printf("✗ Failed to send data\n");
// }
bool success = tcp_client_send_message(&tcp_config, msg);
if (success) {
printf("✓ Data sent successfully\n");
comms_led_blink();
} else {
printf("✗ Failed to send data\n");
}
} else {
printf("WiFi not connected, skipping send\n");
}

37
tcp_client.c
View file

@ -79,10 +79,10 @@ static err_t tcp_client_connected(void *arg, struct tcp_pcb *tpcb, err_t err) {
DEBUG_printf("tcp_client: connect failed %d\n", err);
return tcp_client_result(state, err);
}
state->connected = true;
DEBUG_printf("tcp_client: connected, sending message\n");
// Send the message
cyw43_arch_lwip_begin();
err_t write_err = tcp_write(tpcb, state->message, state->message_len, TCP_WRITE_FLAG_COPY);
@ -91,16 +91,16 @@ static err_t tcp_client_connected(void *arg, struct tcp_pcb *tpcb, err_t err) {
cyw43_arch_lwip_end();
return tcp_client_result(state, -1);
}
// Flush the data
err_t output_err = tcp_output(tpcb);
cyw43_arch_lwip_end();
if (output_err != ERR_OK) {
DEBUG_printf("tcp_client: failed to output data %d\n", output_err);
return tcp_client_result(state, -1);
}
return ERR_OK;
}
@ -121,27 +121,27 @@ static void tcp_client_err(void *arg, err_t err) {
static err_t tcp_client_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err) {
tcp_client_state_t *state = (tcp_client_state_t*)arg;
if (!p) {
DEBUG_printf("tcp_client: connection closed by server\n");
return tcp_client_result(state, 0);
}
cyw43_arch_lwip_check();
if (p->tot_len > 0) {
DEBUG_printf("tcp_client: received %d bytes (ignoring)\n", p->tot_len);
tcp_recved(tpcb, p->tot_len);
}
pbuf_free(p);
return ERR_OK;
}
static bool tcp_client_open(tcp_client_state_t *state) {
DEBUG_printf("tcp_client: connecting to %s port %u\n",
DEBUG_printf("tcp_client: connecting to %s port %u\n",
ip4addr_ntoa(&state->remote_addr), state->remote_port);
state->tcp_pcb = tcp_new_ip_type(IP_GET_TYPE(&state->remote_addr));
if (!state->tcp_pcb) {
DEBUG_printf("tcp_client: failed to create pcb\n");
@ -158,7 +158,7 @@ static bool tcp_client_open(tcp_client_state_t *state) {
state->timeout_time = make_timeout_time_ms(state->timeout_ms);
cyw43_arch_lwip_begin();
err_t err = tcp_connect(state->tcp_pcb, &state->remote_addr,
err_t err = tcp_connect(state->tcp_pcb, &state->remote_addr,
state->remote_port, tcp_client_connected);
cyw43_arch_lwip_end();
@ -170,7 +170,7 @@ static bool tcp_client_open(tcp_client_state_t *state) {
return true;
}
bool tcp_client_init(tcp_client_config *config, const char *server_ip,
bool tcp_client_init(tcp_client_config *config, const char *server_ip,
uint16_t server_port, uint32_t timeout_ms) {
if (!config || !server_ip) {
return false;
@ -214,7 +214,7 @@ bool tcp_client_send_message(tcp_client_config *config, const char *message) {
state->success = false;
state->connected = false;
DEBUG_printf("tcp_client: sending message (%d bytes): %s\n",
DEBUG_printf("tcp_client: sending message (%d bytes): %s\n",
state->message_len, message);
if (!tcp_client_open(state)) {
@ -232,18 +232,13 @@ bool tcp_client_send_message(tcp_client_config *config, const char *message) {
state->success = false;
break;
}
#if PICO_CYW43_ARCH_POLL
cyw43_arch_poll();
cyw43_arch_wait_for_work_until(make_timeout_time_ms(100));
#else
sleep_ms(100);
#endif
}
bool success = state->success;
free(state);
return success;
}
@ -252,4 +247,4 @@ void tcp_client_cleanup(tcp_client_config *config) {
config->initialized = false;
config->internal_state = NULL;
}
}
}