#include <curses.priv.h>
#include <tic.h>
#include <ctype.h>
MODULE_ID("$Id: lib_trace.c,v 1.53 2003/11/23 00:39:30 tom Exp $")
NCURSES_EXPORT_VAR(unsigned) _nc_tracing = 0;
#ifdef TRACE
NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace = "";
NCURSES_EXPORT_VAR(long) _nc_outchars = 0;
static FILE *tracefp = 0;
NCURSES_EXPORT(void)
trace(const unsigned int tracelevel)
{
static bool been_here = FALSE;
static char my_name[PATH_MAX];
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, mode)) == 0) {
perror("curses: Can't open 'trace' file");
exit(EXIT_FAILURE);
}
#if HAVE_SETVBUF
(void) setvbuf(tracefp, (char *) 0, _IOLBF, 0);
#elif HAVE_SETBUF
(void) setbuffer(tracefp, (char *) 0);
#endif
_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);
}
}
NCURSES_EXPORT(void)
_tracef(const char *fmt,...)
{
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;
int save_err = errno;
if (strlen(fmt) >= sizeof(Called) - 1) {
if (!strncmp(fmt, Called, sizeof(Called) - 1)) {
before = TRUE;
level++;
} else if (!strncmp(fmt, Return, sizeof(Return) - 1)) {
after = TRUE;
}
if (before || after) {
if ((level <= 1)
|| (doit & TRACE_ICALLS) != 0)
doit &= (TRACE_CALLS | TRACE_CCALLS);
else
doit = 0;
}
}
if (doit != 0) {
if (tracefp == 0)
tracefp = stderr;
if (before || after) {
int n;
for (n = 1; n < level; n++)
fputs("+ ", tracefp);
}
va_start(ap, fmt);
vfprintf(tracefp, fmt, ap);
fputc('\n', tracefp);
va_end(ap);
fflush(tracefp);
}
if (after && level)
level--;
errno = save_err;
}
NCURSES_EXPORT(NCURSES_BOOL)
_nc_retrace_bool(NCURSES_BOOL code)
{
T((T_RETURN("%s"), code ? "TRUE" : "FALSE"));
return code;
}
NCURSES_EXPORT(int)
_nc_retrace_int(int code)
{
T((T_RETURN("%d"), code));
return code;
}
NCURSES_EXPORT(unsigned)
_nc_retrace_unsigned(unsigned code)
{
T((T_RETURN("%#x"), code));
return code;
}
NCURSES_EXPORT(char *)
_nc_retrace_ptr(char *code)
{
T((T_RETURN("%s"), _nc_visbuf(code)));
return code;
}
NCURSES_EXPORT(SCREEN *)
_nc_retrace_sp(SCREEN * code)
{
T((T_RETURN("%p"), code));
return code;
}
NCURSES_EXPORT(WINDOW *)
_nc_retrace_win(WINDOW *code)
{
T((T_RETURN("%p"), code));
return code;
}
#endif