1 files changed, 2 insertions, 0 deletions
diff --git a/pom.h b/pom.h
index 7af38c8..4473562 100644
--- a/pom.h
+++ b/pom.h
@@ -106,6 +106,8 @@ typedef struct pom_item {
 /// It must fill out the buffer as much as possible,
 /// and return the number of bytes read.
 /// A return value less than `len` indicates the end of the file was reached.
+/// `read_func` will not be called excessively/with lots of tiny reads—it's
+/// okay to do unbuffered reads in it.
 ///
 /// `filename` is only used for errors.
 POM__MUST_USE_L