fifo 支持水位监测和溢出次数统计

2026-07-20 10:53:37 +08:00
parent 065420db36
commit 6d57f4f1ce
3 changed files with 26 additions and 3 deletions
@@ -9,18 +9,28 @@

 // 在尾部写入数据
 os_err_t fifo_put(fifo_t* self, uint8_t data){
-
    os_size_t write_idx = self->write_idx;
-
    os_size_t next_write_idx = fifo_next(self, self->write_idx);

    if(next_write_idx == self->read_idx){
+
+#if defined(OS_CFG_FIFO_DEBUG_ENABLE) && (OS_CFG_FIFO_DEBUG_ENABLE==1)
+        self->overflow_count++;
+#endif
+
        return OS_ERR_FULL;
    }

    self->buffer[write_idx] = data;
    self->write_idx = next_write_idx;

+#if defined(OS_CFG_FIFO_DEBUG_ENABLE) && (OS_CFG_FIFO_DEBUG_ENABLE==1)
+    os_size_t used = fifo_count(self);
+    if (used > self->high_water) {
+        self->high_water = used;
+    }
+#endif
+
    return OS_ERR_OK;
 }