/****************************************************************************
- * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
+ * and: Thomas E. Dickey 1996-on *
****************************************************************************/
/*
* lib_trace.c - Tracing/Debugging routines
+ *
+ * The _tracef() function is originally from pcurses (by Pavel Curtis) in 1982.
+ * pcurses allowed one to enable/disable tracing using traceon() and traceoff()
+ * functions. ncurses provides a trace() function which allows one to
+ * selectively enable or disable several tracing features.
*/
#include <curses.priv.h>
#include <ctype.h>
-MODULE_ID("$Id: lib_trace.c,v 1.50 2002/10/12 15:20:15 tom Exp $")
+MODULE_ID("$Id: lib_trace.c,v 1.62 2007/07/14 19:32:54 tom Exp $")
-NCURSES_EXPORT_VAR(unsigned) _nc_tracing = 0; /* always define this */
+NCURSES_EXPORT_VAR(unsigned) _nc_tracing = 0; /* always define this */
#ifdef TRACE
NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace = "";
NCURSES_EXPORT_VAR(long) _nc_outchars = 0;
-static FILE *tracefp; /* default to writing to stderr */
+#define TraceFP _nc_globals.trace_fp
+#define TracePath _nc_globals.trace_fname
+#define TraceLevel _nc_globals.trace_level
NCURSES_EXPORT(void)
-trace(const unsigned int tracelevel GCC_UNUSED)
+trace(const unsigned int tracelevel)
{
- static bool been_here = FALSE;
- static char my_name[] = "trace";
-
- if (!been_here && tracelevel) {
- been_here = TRUE;
+ if ((TraceFP == 0) && tracelevel) {
+ const char *mode = _nc_globals.init_trace ? "ab" : "wb";
+
+ if (TracePath[0] == '\0') {
+ if (getcwd(TracePath, sizeof(TracePath) - 12) == 0) {
+ perror("curses: Can't get working directory");
+ exit(EXIT_FAILURE);
+ }
+ strcat(TracePath, "/trace");
+ if (_nc_is_dir_path(TracePath)) {
+ strcat(TracePath, ".log");
+ }
+ }
+ _nc_globals.init_trace = TRUE;
_nc_tracing = tracelevel;
- if (_nc_access(my_name, W_OK) < 0
- || (tracefp = fopen(my_name, "wb")) == 0) {
- perror("curses: Can't open 'trace' file: ");
+ if (_nc_access(TracePath, W_OK) < 0
+ || (TraceFP = fopen(TracePath, mode)) == 0) {
+ perror("curses: Can't open 'trace' file");
exit(EXIT_FAILURE);
}
/* Try to set line-buffered mode, or (failing that) unbuffered,
* end of each line. This is useful in case the program dies.
*/
#if HAVE_SETVBUF /* ANSI */
- (void) setvbuf(tracefp, (char *) 0, _IOLBF, 0);
+ (void) setvbuf(TraceFP, (char *) 0, _IOLBF, 0);
#elif HAVE_SETBUF /* POSIX */
- (void) setbuffer(tracefp, (char *) 0);
+ (void) setbuffer(TraceFP, (char *) 0);
#endif
- _tracef("TRACING NCURSES version %s (tracelevel=%#x)",
- curses_version(), tracelevel);
+ _tracef("TRACING NCURSES version %s.%d (tracelevel=%#x)",
+ NCURSES_VERSION,
+ NCURSES_VERSION_PATCH,
+ tracelevel);
+ } else if (tracelevel == 0) {
+ if (TraceFP != 0) {
+ fclose(TraceFP);
+ TraceFP = 0;
+ }
+ _nc_tracing = tracelevel;
} else if (_nc_tracing != tracelevel) {
_nc_tracing = tracelevel;
_tracef("tracelevel=%#x", tracelevel);
{
static const char Called[] = T_CALLED("");
static const char Return[] = T_RETURN("");
- static int level;
va_list ap;
bool before = FALSE;
bool after = FALSE;
- int doit = _nc_tracing;
+ unsigned doit = _nc_tracing;
int save_err = errno;
if (strlen(fmt) >= sizeof(Called) - 1) {
if (!strncmp(fmt, Called, sizeof(Called) - 1)) {
before = TRUE;
- level++;
+ TraceLevel++;
} else if (!strncmp(fmt, Return, sizeof(Return) - 1)) {
after = TRUE;
}
if (before || after) {
- if ((level <= 1)
+ if ((TraceLevel <= 1)
|| (doit & TRACE_ICALLS) != 0)
doit &= (TRACE_CALLS | TRACE_CCALLS);
else
}
if (doit != 0) {
- if (tracefp == 0)
- tracefp = stderr;
+ if (TraceFP == 0)
+ TraceFP = stderr;
if (before || after) {
int n;
- for (n = 1; n < level; n++)
- fputs("+ ", tracefp);
+ for (n = 1; n < TraceLevel; n++)
+ fputs("+ ", TraceFP);
}
va_start(ap, fmt);
- vfprintf(tracefp, fmt, ap);
- fputc('\n', tracefp);
+ vfprintf(TraceFP, fmt, ap);
+ fputc('\n', TraceFP);
va_end(ap);
- fflush(tracefp);
+ fflush(TraceFP);
}
- if (after && level)
- level--;
+ if (after && TraceLevel)
+ TraceLevel--;
errno = save_err;
}
return code;
}
+/* Trace 'const char*' return-values */
+NCURSES_EXPORT(const char *)
+_nc_retrace_cptr(const char *code)
+{
+ T((T_RETURN("%s"), _nc_visbuf(code)));
+ return code;
+}
+
+/* Trace 'NCURSES_CONST void*' return-values */
+NCURSES_EXPORT(NCURSES_CONST void *)
+_nc_retrace_cvoid_ptr(NCURSES_CONST void *code)
+{
+ T((T_RETURN("%p"), code));
+ return code;
+}
+
+/* Trace 'void*' return-values */
+NCURSES_EXPORT(void *)
+_nc_retrace_void_ptr(void *code)
+{
+ T((T_RETURN("%p"), code));
+ return code;
+}
+
/* Trace 'SCREEN *' return-values */
NCURSES_EXPORT(SCREEN *)
-_nc_retrace_sp(SCREEN * code)
+_nc_retrace_sp(SCREEN *code)
{
T((T_RETURN("%p"), code));
return code;
projects / ncurses.git / blobdiff