Index: ossp-pkg/sio/al.c
RCS File: /v/ossp/cvs/ossp-pkg/sio/Attic/al.c,v
rcsdiff -q -kk '-r1.14' '-r1.15' -u '/v/ossp/cvs/ossp-pkg/sio/Attic/al.c,v' 2>/dev/null
--- al.c	2002/10/16 12:37:08	1.14
+++ al.c	2002/10/17 10:17:54	1.15
@@ -236,7 +236,11 @@
     ((n) > AL_CHUNK_LEN(alc) - (off) ? \
     AL_CHUNK_LEN(alc) - (off) : (n))
 
-/* number of bytes a chunk can be grown to the end */
+/*
+ * number of bytes a chunk can be grown to the end
+ * we must not grow a chunk in a shared buffer since
+ * we do not track other chunks sharing the buffer
+ */
 #define AL_CHUNK_RESERVE(alc) \
     ((alc) \
     ? (alc)->buf->usecount > 1 ? 0 : (alc)->buf->size - (alc)->end \
@@ -246,7 +250,11 @@
 #define AL_RESIZE(al, alc, n) \
     do { (alc)->end += n; (al)->bytes += (n); } while (0)
 
-/* number of bytes a chunk can be grown to the beginning */
+/*
+ * number of bytes a chunk can be grown to the beginning
+ * we must not grow a chunk in a shared buffer since
+ * we do not track other chunks sharing the buffer
+ */
 #define AL_CHUNK_PRESERVE(alc) \
     ((alc) \
     ? (alc)->buf->usecount > 1 ? 0 : (alc)->begin \