X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/mLib/blobdiff_plain/de3ceebeb4d24658fef4412d7b307a7897e00d6e..6f444bda1b7deb31cf7fb2395cb0993c3e3b8c42:/trace.h

diff --git a/trace.h b/trace.h
index 1e02a26..c78ba8f 100644
--- a/trace.h
+++ b/trace.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: trace.h,v 1.4 1999/10/22 22:39:52 mdw Exp $
+ * $Id: trace.h,v 1.6 2001/02/03 16:23:55 mdw Exp $
  *
  * Tracing functions for debugging
  *
@@ -30,6 +30,12 @@
 /*----- Revision history --------------------------------------------------*
  *
  * $Log: trace.h,v $
+ * Revision 1.6  2001/02/03 16:23:55  mdw
+ * New custom trace output interface.
+ *
+ * Revision 1.5  1999/12/10 23:42:04  mdw
+ * Change header file guard names.
+ *
  * Revision 1.4  1999/10/22 22:39:52  mdw
  * New documented interface for tracing.
  *
@@ -44,8 +50,8 @@
  *
  */
 
-#ifndef TRACE_H
-#define TRACE_H
+#ifndef MLIB_TRACE_H
+#define MLIB_TRACE_H
 
 #ifdef __cplusplus
   extern "C" {
@@ -105,6 +111,21 @@ extern void trace_block(unsigned /*l*/, const char */*s*/,
 
 extern void trace_on(FILE */*fp*/, unsigned /*l*/);
 
+/* --- @trace_custom@ --- *
+ *
+ * Arguments:	@void (*func)(const char *buf, size_t sz, void *v)@ =
+ *			output function
+ *		@void *v@ = magic handle to give to function
+ *
+ * Returns:	---
+ *
+ * Use:		Sets up a custom trace handler.
+ */
+
+extern void trace_custom(void (*/*func*/)(const char */*buf*/,
+					  size_t /*sz*/, void */*v*/),
+			 void */*v*/);
+
 /* --- @trace_level@ --- *
  *
  * Arguments:	@unsigned l@ = trace level to set
@@ -129,7 +150,7 @@ extern unsigned tracing(void);
 
 /* --- @traceopt@ --- *
  *
- * Arguments:	@trace_opt *t@ = pointer to trace options table
+ * Arguments:	@const trace_opt *t@ = pointer to trace options table
  *		@const char *p@ = option string supplied by user
  *		@unsigned f@ = initial tracing flags
  *		@unsigned bad@ = forbidden tracing flags
@@ -141,7 +162,7 @@ extern unsigned tracing(void);
  *		`?' character, a help message is displayed.
  */
 
-extern unsigned traceopt(trace_opt */*t*/, const char */*p*/,
+extern unsigned traceopt(const trace_opt */*t*/, const char */*p*/,
 			 unsigned /*f*/, unsigned /*bad*/);
 
 /*----- Tracing macros ----------------------------------------------------*/