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fix(modem): Fix netif data race causing PPP startup delays

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Removes PPP_started signal on reception, since lwip handles data
reception if the netif is up/down (which we correctly set in start()
stop() methods)

Closes https://github.com/espressif/esp-protocols/issues/308
This commit is contained in:
David Cermak
2023-06-27 14:59:08 +02:00
parent cb6e03ac62
commit c8c05075fb
3 changed files with 13 additions and 7 deletions
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11
components/esp_modem/src/esp_modem_dce.cpp
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@ -21,10 +21,17 @@ static bool exit_data(DTE &dte, ModuleIf &device, Netif &netif)
netif.stop();
auto signal = std::make_shared<SignalGroup>();
std::weak_ptr<SignalGroup> weak_signal = signal;
dte.set_read_cb([weak_signal](uint8_t *data, size_t len) -> bool {
dte.set_read_cb([&netif, weak_signal](uint8_t *data, size_t len) -> bool {
// post the transitioning data to the network layers if it contains PPP SOF marker
if (memchr(data, 0x7E, len))
{
ESP_LOG_BUFFER_HEXDUMP("esp-modem: debug_data (PPP)", data, len, ESP_LOG_DEBUG);
netif.receive(data, len);
}
// treat the transitioning data as a textual message if it contains a newline char
if (memchr(data, '\n', len))
{
ESP_LOG_BUFFER_HEXDUMP("esp-modem: debug_data", data, len, ESP_LOG_DEBUG);
ESP_LOG_BUFFER_HEXDUMP("esp-modem: debug_data (CMD)", data, len, ESP_LOG_DEBUG);
const auto pass = std::list<std::string_view>({"NO CARRIER", "DISCONNECTED"});
std::string_view response((char *) data, len);
for (auto &it : pass)