/****************************************************************************
- * Copyright (c) 1998,1999,2000 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2004,2005 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 1.34 2000/04/01 20:25:47 tom Exp $")
+MODULE_ID("$Id: lib_trace.c,v 1.59 2006/08/19 12:05:25 tom Exp $")
-unsigned _nc_tracing = 0; /* always define this */
+NCURSES_EXPORT_VAR(unsigned) _nc_tracing = 0; /* always define this */
#ifdef TRACE
-const char *_nc_tputs_trace = "";
-long _nc_outchars = 0;
+NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace = "";
+NCURSES_EXPORT_VAR(long) _nc_outchars = 0;
-static FILE *tracefp; /* default to writing to stderr */
+static FILE *tracefp = 0; /* default to writing to stderr */
-void
-trace(const unsigned int tracelevel GCC_UNUSED)
+NCURSES_EXPORT(void)
+trace(const unsigned int tracelevel)
{
static bool been_here = FALSE;
- static char my_name[] = "trace";
+ static char my_name[PATH_MAX];
- _nc_tracing = tracelevel;
- if (!been_here && tracelevel) {
- been_here = TRUE;
+ if ((tracefp == 0) && tracelevel) {
+ const char *mode = been_here ? "ab" : "wb";
+
+ if (*my_name == '\0') {
+ if (getcwd(my_name, sizeof(my_name) - 10) == 0) {
+ perror("curses: Can't get working directory");
+ exit(EXIT_FAILURE);
+ }
+ strcat(my_name, "/trace");
+ }
+ been_here = TRUE;
+ _nc_tracing = tracelevel;
if (_nc_access(my_name, W_OK) < 0
- || (tracefp = fopen(my_name, "w")) == 0) {
- perror("curses: Can't open 'trace' file: ");
+ || (tracefp = fopen(my_name, mode)) == 0) {
+ perror("curses: Can't open 'trace' file");
exit(EXIT_FAILURE);
}
/* Try to set line-buffered mode, or (failing that) unbuffered,
#elif HAVE_SETBUF /* POSIX */
(void) setbuffer(tracefp, (char *) 0);
#endif
- _tracef("TRACING NCURSES version %s (%d)",
- NCURSES_VERSION, NCURSES_VERSION_PATCH);
- }
-}
-#endif
-
-const char *
-_nc_visbuf2(int bufnum, const char *buf)
-/* visibilize a given string */
-{
- char *vbuf;
- char *tp;
- int c;
-
- if (buf == 0)
- return ("(null)");
- if (buf == CANCELLED_STRING)
- return ("(cancelled)");
-
-#ifdef TRACE
- tp = vbuf = _nc_trace_buf(bufnum, (strlen(buf) * 4) + 5);
-#else
- {
- static char *mybuf[2];
- mybuf[bufnum] = _nc_doalloc(mybuf[bufnum], (strlen(buf) * 4) + 5);
- tp = vbuf = mybuf[bufnum];
- }
-#endif
- *tp++ = '"';
- while ((c = *buf++) != '\0') {
- if (c == '"') {
- *tp++ = '\\';
- *tp++ = '"';
- } else if (is7bits(c) && (isgraph(c) || c == ' ')) {
- *tp++ = c;
- } else if (c == '\n') {
- *tp++ = '\\';
- *tp++ = 'n';
- } else if (c == '\r') {
- *tp++ = '\\';
- *tp++ = 'r';
- } else if (c == '\b') {
- *tp++ = '\\';
- *tp++ = 'b';
- } else if (c == '\033') {
- *tp++ = '\\';
- *tp++ = 'e';
- } else if (is7bits(c) && iscntrl(c)) {
- *tp++ = '\\';
- *tp++ = '^';
- *tp++ = '@' + c;
- } else {
- sprintf(tp, "\\%03o", c & 0xff);
- tp += strlen(tp);
+ _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);
}
- *tp++ = '"';
- *tp++ = '\0';
- return (vbuf);
-}
-
-const char *
-_nc_visbuf(const char *buf)
-{
- return _nc_visbuf2(0, buf);
}
-#ifdef TRACE
-void
+NCURSES_EXPORT(void)
_tracef(const char *fmt,...)
{
static const char Called[] = T_CALLED("");
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) {
errno = save_err;
}
+/* Trace 'bool' return-values */
+NCURSES_EXPORT(NCURSES_BOOL)
+_nc_retrace_bool(NCURSES_BOOL code)
+{
+ T((T_RETURN("%s"), code ? "TRUE" : "FALSE"));
+ return code;
+}
+
/* Trace 'int' return-values */
-int
+NCURSES_EXPORT(int)
_nc_retrace_int(int code)
{
T((T_RETURN("%d"), code));
return code;
}
+/* Trace 'unsigned' return-values */
+NCURSES_EXPORT(unsigned)
+_nc_retrace_unsigned(unsigned code)
+{
+ T((T_RETURN("%#x"), code));
+ return code;
+}
+
/* Trace 'char*' return-values */
-char *
+NCURSES_EXPORT(char *)
_nc_retrace_ptr(char *code)
{
T((T_RETURN("%s"), _nc_visbuf(code)));
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)
+{
+ T((T_RETURN("%p"), code));
+ return code;
+}
+
/* Trace 'WINDOW *' return-values */
-WINDOW *
+NCURSES_EXPORT(WINDOW *)
_nc_retrace_win(WINDOW *code)
{
T((T_RETURN("%p"), code));
projects / ncurses.git / blobdiff