processor_tda: Add a note

cosmo0920 · cosmo0920 · commit 800849ed3ab7 · 2025-12-08T14:34:50.000+09:00
Signed-off-by: Hiroshi Hatake &lt;hiroshi@chronosphere.io&gt;
diff --git a/plugins/processor_tda/tda.c b/plugins/processor_tda/tda.c
@@ -681,6 +681,9 @@ static size_t tda_window_snapshot(struct tda_window *w,
         return 0;
     }
 
+    /* Note: lwrb doesn't support peek, so we read and restore.
+     * In the unlikely event write-back fails, data is lost.
+     */
     /* read out all data ... */
     r = lwrb_read(&w->rb, tmp, full_bytes);
     if (r != full_bytes) {

Original file line number	Diff line number	Diff line change
`@@ -681,6 +681,9 @@ static size_t tda_window_snapshot(struct tda_window *w,`
`681`	`681`	`return 0;`
`682`	`682`	`}`
`683`	`683`
	`684`	`+ /* Note: lwrb doesn't support peek, so we read and restore.`
	`685`	`+ * In the unlikely event write-back fails, data is lost.`
	`686`	`+ */`
`684`	`687`	`/* read out all data ... */`
`685`	`688`	`r = lwrb_read(&w->rb, tmp, full_bytes);`
`686`	`689`	`if (r != full_bytes) {`