From e12c84f9e25b9040350c9cb74208d311ea8c1b85 Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <imuwoto@gmail.com>
Date: Fri, 9 Jun 2023 23:57:04 +0900
Subject: [PATCH] comment

---
 lib/instance.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/instance.h b/lib/instance.h
index 2c2ff154..292db9f4 100644
--- a/lib/instance.h
+++ b/lib/instance.h
@@ -51,10 +51,17 @@ void instance_destroy(struct instance *inst);
  * return following toywasm-specific errors:
  *
  * ETOYWASMRESTART: the execution has been suspended for some reasons.
+ *                  possible reasons include:
+ *
+ *                  - suspend_threads mechanism, which is used for
+ *                    memory.grow on multithreaded configuration.
+ *
+ *                  - context switch requests for TOYWASM_USE_USER_SCHED
+ *
  *                  the caller should usually resume the execution by
  *                  calling instance_execute_handle_restart. or,
  *                  use instance_execute_continue if you need some
- *                  application-specific processing.
+ *                  application-specific handling.
  *
  * ETOYWASMTRAP:    the exection was terminated by a wasm trap.
  *                  the caller can investigate ctx->trap for details.