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fix: fail fast on app route backpressure

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2026-04-23 18:06:02 +08:00
parent ab3b6bfc9a
commit d6a1565503
3 changed files with 87 additions and 25 deletions
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App/config.c
+51 -9
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@@ -22,6 +22,8 @@
static device_config_t g_config;
static volatile bool g_reset_requested;
static volatile bool g_uart1_tx_busy;
static volatile uint32_t g_config_rx_route_fail_count;
static volatile route_send_result_t g_config_rx_route_fail_reason;
static uint8_t g_uart1_rx_buffer[CONFIG_RX_BUFFER_SIZE];
static char g_config_cmd_buffer[CONFIG_CMD_MAX_LEN];
static char g_config_response_buffer[CONFIG_TX_BUFFER_SIZE];
@@ -570,19 +572,24 @@ void config_uart_idle_handler(void)
uint16_t len = CONFIG_RX_BUFFER_SIZE - dma_counter;
BaseType_t xHigherPriorityTaskWoken = pdFALSE;
HAL_StatusTypeDef hal_status;
route_send_result_t route_result;
if (g_uart1_tx_busy) {
return;
}
if (len > 0u && xConfigQueue != NULL) {
(void)route_send_from_isr(xConfigQueue,
0u,
0u,
ROUTE_CONN_UART1,
g_uart1_rx_buffer,
len,
&xHigherPriorityTaskWoken);
route_result = route_send_from_isr(xConfigQueue,
0u,
0u,
ROUTE_CONN_UART1,
g_uart1_rx_buffer,
len,
&xHigherPriorityTaskWoken);
if (route_result != ROUTE_SEND_OK) {
g_config_rx_route_fail_reason = route_result;
g_config_rx_route_fail_count += 1u;
}
}
hal_status = HAL_UART_DMAStop(&huart1);
@@ -625,16 +632,47 @@ static void config_respond_to_uart(route_msg_t *msg, const char *response)
uart_channel_t channel = (msg->src_id == ENDPOINT_UART3) ? UART_CHANNEL_U1 : UART_CHANNEL_U0;
uint8_t frame[ROUTE_MSG_MAX_PAYLOAD + 6u];
uint16_t frame_len = 0u;
uart_trans_send_result_t uart_result;
if (uart_mux_encode_frame(msg->src_id, 0u, (const uint8_t *)response, (uint16_t)strlen(response), frame, &frame_len, sizeof(frame))) {
(void)uart_trans_send_buffer(channel, frame, frame_len);
uart_result = uart_trans_send_buffer(channel, frame, frame_len);
if (uart_result != UART_TRANS_SEND_OK) {
debug_log_printf("[CFG] resp-tx-fail ch=%u rc=%s len=%u\r\n",
(unsigned int)channel,
uart_trans_send_result_to_str(uart_result),
(unsigned int)frame_len);
}
} else {
debug_log_printf("[CFG] resp-enc-fail src=0x%02X len=%u\r\n",
(unsigned int)msg->src_id,
(unsigned int)strlen(response));
}
}
}
static void config_report_route_failures(uint32_t *reported_route_fail_count)
{
uint32_t fail_count;
route_send_result_t fail_reason;
if (reported_route_fail_count == NULL) {
return;
}
fail_count = g_config_rx_route_fail_count;
fail_reason = g_config_rx_route_fail_reason;
if (fail_count != *reported_route_fail_count) {
*reported_route_fail_count = fail_count;
debug_log_printf("[CFG] rx-route-fail rc=%s cnt=%lu\r\n",
route_send_result_to_str(fail_reason),
(unsigned long)fail_count);
}
}
void ConfigTask(void *argument)
{
route_msg_t *msg;
at_result_t result;
uint32_t reported_route_fail_count = 0u;
(void)argument;
debug_log_write("[CFG] task-entry\r\n");
@@ -642,10 +680,14 @@ void ConfigTask(void *argument)
debug_log_write("[CFG] task-ready\r\n");
for (;;) {
if (xQueueReceive(xConfigQueue, &msg, portMAX_DELAY) != pdPASS) {
config_report_route_failures(&reported_route_fail_count);
if (xQueueReceive(xConfigQueue, &msg, pdMS_TO_TICKS(50)) != pdPASS) {
continue;
}
config_report_route_failures(&reported_route_fail_count);
if (msg->len >= sizeof(g_config_cmd_buffer)) {
msg->len = sizeof(g_config_cmd_buffer) - 1u;
}