#include <ctype.h>
-MODULE_ID("$Id: lib_trace.c,v 1.62 2007/07/14 19:32:54 tom Exp $")
+MODULE_ID("$Id: lib_trace.c,v 1.65 2007/09/29 21:47:46 tom Exp $")
NCURSES_EXPORT_VAR(unsigned) _nc_tracing = 0; /* always define this */
#ifdef TRACE
+
+#if USE_REENTRANT
+NCURSES_EXPORT(const char *)
+NCURSES_PUBLIC_VAR(_nc_tputs_trace) (void)
+{
+ return SP ? SP->_tputs_trace : _nc_prescreen._tputs_trace;
+}
+NCURSES_EXPORT(long)
+NCURSES_PUBLIC_VAR(_nc_outchars) (void)
+{
+ return SP ? SP->_outchars : _nc_prescreen._outchars;
+}
+NCURSES_EXPORT(void)
+_nc_set_tputs_trace(const char *s)
+{
+ if (SP)
+ SP->_tputs_trace = s;
+ else
+ _nc_prescreen._tputs_trace = s;
+}
+NCURSES_EXPORT(void)
+_nc_count_outchars(long increment)
+{
+ if (SP)
+ SP->_outchars += increment;
+ else
+ _nc_prescreen._outchars += increment;
+}
+#else
NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace = "";
NCURSES_EXPORT_VAR(long) _nc_outchars = 0;
+#endif
#define TraceFP _nc_globals.trace_fp
#define TracePath _nc_globals.trace_fname
}
}
-NCURSES_EXPORT(void)
-_tracef(const char *fmt,...)
+static void
+_nc_va_tracef(const char *fmt, va_list ap)
{
static const char Called[] = T_CALLED("");
static const char Return[] = T_RETURN("");
- va_list ap;
+
bool before = FALSE;
bool after = FALSE;
unsigned doit = _nc_tracing;
for (n = 1; n < TraceLevel; n++)
fputs("+ ", TraceFP);
}
- va_start(ap, fmt);
vfprintf(TraceFP, fmt, ap);
fputc('\n', TraceFP);
- va_end(ap);
fflush(TraceFP);
}
if (after && TraceLevel)
TraceLevel--;
+
errno = save_err;
}
+NCURSES_EXPORT(void)
+_tracef(const char *fmt,...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _nc_va_tracef(fmt, ap);
+ va_end(ap);
+}
+
/* Trace 'bool' return-values */
NCURSES_EXPORT(NCURSES_BOOL)
_nc_retrace_bool(NCURSES_BOOL code)
T((T_RETURN("%p"), code));
return code;
}
+
+#if USE_REENTRANT
+/*
+ * Check if the given trace-mask is enabled.
+ *
+ * This function may be called from within one of the functions that fills
+ * in parameters for _tracef(), but in that case we do not want to lock the
+ * mutex, since it is already locked.
+ */
+NCURSES_EXPORT(int)
+_nc_use_tracef(unsigned mask)
+{
+ bool result = FALSE;
+
+ _nc_lock_global(tst_tracef);
+ if (!_nc_globals.nested_tracef++) {
+ if ((result = (_nc_tracing & (mask))) != 0) {
+ /* we will call _nc_locked_tracef(), no nesting so far */
+ _nc_lock_global(tracef);
+ } else {
+ /* we will not call _nc_locked_tracef() */
+ _nc_globals.nested_tracef = 0;
+ }
+ } else {
+ /* we may call _nc_locked_tracef(), but with nested_tracef > 0 */
+ result = (_nc_tracing & (mask));
+ }
+ _nc_unlock_global(tst_tracef);
+ return result;
+}
+
+/*
+ * We call this if _nc_use_tracef() returns true, which means we must unlock
+ * the tracef mutex.
+ */
+NCURSES_EXPORT(void)
+_nc_locked_tracef(const char *fmt,...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _nc_va_tracef(fmt, ap);
+ va_end(ap);
+
+ if (--(_nc_globals.nested_tracef) == 0)
+ _nc_unlock_global(tracef);
+}
+#endif /* USE_REENTRANT */
+
#endif /* TRACE */