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
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)
.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)
which the author uses rather a lot.
.PP
The
-.B trace
-module (not yet documented)
-provides an interface for emitting tracing information with configurable
-verbosity levels. It needs improving to be able to cope with outputting
-to the system log.
+.BR trace (3)
+module provides an interface for emitting tracing information with
+configurable verbosity levels. It needs improving to be able to cope
+with outputting to the system log.
.SS "Other data types"
The
.BR hash (3)
.BR hash (3).
.PP
The
-.B dynarray
-module (not yet documented) implements unbounded sparse arrays. It
-needs rewriting.
+.BR darray (3)
+module implements dynamically resizing arrays which support Perl-like
+stack operations efficiently.
.SS "Miscellaneous utilities"
The
.BR crc32 (3)
Signals are queued until dispatched through the normal
.B sel
mechanism.
+.PP
+The
+.BR ident (3)
+module provides a nonblocking ident (RFC931) client.
+.PP
+The
+.BR bres (3)
+module does background hostname and address resolution.
.SH "SEE ALSO"
.BR alloc (3),
.BR base64 (3),
.BR bits (3),
+.BR bres (3),
.BR conn (3),
.BR crc32 (3),
+.BR darray (3),
.BR dspool (3),
.BR dstr (3),
.BR env (3),
.BR exc (3),
.BR fdflags (3),
.BR hash (3),
+.BR ident (3),
.BR lbuf (3),
.BR lock (3),
.BR mdwopt (3),
.BR str (3),
.BR sub (3),
.BR sym (3),
+.BR trace (3),
.BR tv (3),
.BR url (3).
.SH AUTHOR