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/*
* debugging support -- tom dickey.
*
* $Header: /usr/build/vile/vile/RCS/trace.h,v 1.22 2005/01/26 23:24:01 tom Exp $
*
*/
#ifndef _trace_h
#define _trace_h
#ifndef NO_LEAKS
#define NO_LEAKS 0
#endif
#ifndef DOALLOC
#define DOALLOC 0
#endif
#ifndef show_alloc
extern void show_alloc (void);
#endif
/* Initialize SOME data to quiet memory-checking complaints about
* references to uninitialized data.
*/
#undef init_alloc
#define init_alloc(s,n) memset(s,0,n)
#if DOALLOC
extern char * doalloc (char *oldp, unsigned amount);
extern char * do_calloc (unsigned nmemb, unsigned size);
extern void dofree (void *oldp);
extern void dopoison (void *oldp, unsigned long len);
#undef calloc
#define calloc(n,m) do_calloc(n, m)
#undef malloc
#define malloc(n) doalloc((char *)0,n)
#undef realloc
#define realloc(p,n) doalloc(p,n)
#undef free
#define free(p) dofree(p)
#ifdef POISON
#undef poison
#define poison(p,s) dopoison(p,s)
#endif
#endif /* DOALLOC */
#if !(defined(__GNUC__) || defined(__attribute__))
#define __attribute__(p)
#endif
extern void fail_alloc (char *msg, char *ptr);
extern void Trace ( const char *fmt, ... ) __attribute__ ((format(printf,1,2)));
extern void Elapsed ( char * msg);
extern void WalkBack (void);
extern char * trace_indent(int level, int marker);
extern int retrace_code (int);
extern char * retrace_string (char *);
extern void retrace_void (void);
/*
* Functions that require types from estruct.h:
*/
#ifdef _estruct_h
extern char * itb_visible (ITBUFF *p);
extern char * lp_visible (LINE *p);
extern char * str_visible (char *p);
extern char * str_visible0 (char *p);
extern char * tb_visible (TBUFF *p);
extern char * visible_buff (const char *p, int length, int eos);
extern void trace_buffer (BUFFER *p);
extern void trace_line (LINE *p, BUFFER *q);
extern void trace_mark (char *name, MARK *mk, BUFFER *bp);
extern void trace_region (REGION *rp, BUFFER *bp);
extern void trace_window (WINDOW *p);
#endif
#undef TRACE
#if OPT_TRACE
#define TRACE(p) Trace p
#define returnCode(c) return retrace_code(c)
#define returnString(c) return retrace_string(c)
#define returnVoid() { retrace_void(); return; }
#endif
/*
* Markers to make it simple to construct indented traces:
*/
#define T_CALLED "called {{ "
#define T_RETURN "return }} "
#define T_LENGTH 10
#define TRACE_NULL(s) ((s) != 0 ? (s) : "<null>")
#endif /* _trace_h */
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