X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/mLib/blobdiff_plain/b5ea4de3ac1c61ef84c21f4e3ceff2181d23e456..9787c8a89b4df0e13946ea3e63025c4d9f5900aa:/man/mLib.3

diff --git a/man/mLib.3 b/man/mLib.3
index cb5ee4a..fc10096 100644
--- a/man/mLib.3
+++ b/man/mLib.3
@@ -39,6 +39,12 @@ module, and stands alone.  It's used mainly by the memory allocation
 modules to raise exceptions when there's no more memory to be had.
 .SS "Memory allocation"
 The
+.BR arena (3)
+module provides an abstraction of memory allocation.  By writing
+appropriate arena implementations, a client program can control where
+and how memory is allocated for various structures.
+.PP
+The
 .BR alloc (3)
 module provides simple veneers onto traditional memory allocation
 functions like
@@ -50,7 +56,9 @@ and
 doesn't actually depend on
 .B strdup
 being defined in the library) which raise exceptions when there's not
-enough memory left.
+enough memory left.  These work through the
+.B arena
+layer, so that the caller can control memory allocation.
 .PP
 The
 .BR sub (3)
@@ -64,6 +72,12 @@ The
 .B track
 module (not yet documented) is a simple memory allocation tracker.  It
 can be handy when trying to fix memory leaks.
+.PP
+The
+.BR pool (3)
+module maintains resource pools which can manage memory and other
+resources, all of the resources held in a pool being destroyed along
+with the pool itself.
 .SS "String handling"
 The
 .BR str (3)