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AP_HAL_SITL: periodically warn about failure to open real UART device

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Peter Barker 2020-08-18 17:24:22 +10:00 committed by Peter Barker
parent 67b71e2b94
commit be2d03b02a
1 changed files with 5 additions and 0 deletions
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5
libraries/AP_HAL_SITL/UARTDriver.cpp
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@ -515,6 +515,11 @@ void UARTDriver::_uart_start_connection(void)
if (!_connected) {
_fd = ::open(_uart_path, O_RDWR | O_CLOEXEC);
if (_fd == -1) {
static uint32_t last_error_print_ms;
if (AP_HAL::millis() - last_error_print_ms > 5000) {
::printf("Failed to open (%s): %s\n", _uart_path, strerror(errno));
last_error_print_ms = AP_HAL::millis();
}
return;
}
// use much smaller buffer sizes on real UARTs