Mercurial > hg > xemacs-beta
diff src/lrecord.h @ 996:25e260cb7994
[xemacs-hg @ 2002-09-10 15:27:02 by james]
Enable unloading of dynamic modules. Create the first two internal XEmacs
modules: LDAP and postgreSQL. Update the sample directory to contain a
sample internal XEmacs module and a sample external XEmacs module. Improve
support for autoloading modules. Make internal module code compile into the
XEmacs binary if XEmacs is configured without module support. Make the
internal module directories self-contained so that they can be distributed
separately from XEmacs.
author | james |
---|---|
date | Tue, 10 Sep 2002 15:27:39 +0000 |
parents | c925bacdda60 |
children | e22b0213b713 |
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--- a/src/lrecord.h Mon Sep 09 21:53:43 2002 +0000 +++ b/src/lrecord.h Tue Sep 10 15:27:39 2002 +0000 @@ -770,6 +770,24 @@ INIT_LRECORD_IMPLEMENTATION(type); \ } while (0) +#ifdef HAVE_SHLIB +/* Allow undefining types in order to support module unloading. */ + +#define UNDEF_LRECORD_IMPLEMENTATION(type) do { \ + lrecord_implementations_table[lrecord_type_##type] = NULL; \ + lrecord_markers[lrecord_type_##type] = NULL; \ +} while (0) + +#define UNDEF_EXTERNAL_LRECORD_IMPLEMENTATION(type) do { \ + if (lrecord_##type.lrecord_type_index == lrecord_type_count - 1) { \ + /* This is the most recently defined type. Clean up nicely. */ \ + lrecord_type_##type = lrecord_type_count--; \ + } /* Else we can't help leaving a hole with this implementation. */ \ + UNDEF_LRECORD_IMPLEMENTATION(type); \ +} while (0) + +#endif /* HAVE_SHLIB */ + #define LRECORDP(a) (XTYPE (a) == Lisp_Type_Record) #define XRECORD_LHEADER(a) ((struct lrecord_header *) XPNTR (a))