/****************************************************************************
- * Copyright (c) 1998-2017,2018 Free Software Foundation, Inc. *
+ * Copyright 2018-2021,2022 Thomas E. Dickey *
+ * Copyright 1998-2016,2017 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 *
/*
* lib_trace.c - Tracing/Debugging routines
*
- * The _tracef() function is originally from pcurses (by Pavel Curtis) in 1982.
+ * 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 <ctype.h>
-MODULE_ID("$Id: lib_trace.c,v 1.87 2018/06/24 00:06:37 tom Exp $")
+MODULE_ID("$Id: lib_trace.c,v 1.101 2022/09/17 14:57:02 tom Exp $")
NCURSES_EXPORT_VAR(unsigned) _nc_tracing = 0; /* always define this */
#define MyPath _nc_globals.trace_fname
#define MyLevel _nc_globals.trace_level
#define MyNested _nc_globals.nested_tracef
+#endif /* TRACE */
-NCURSES_EXPORT(void)
-trace(const unsigned int tracelevel)
+#if USE_REENTRANT
+#define Locked(statement) { \
+ _nc_lock_global(tst_tracef); \
+ statement; \
+ _nc_unlock_global(tst_tracef); \
+ }
+#else
+#define Locked(statement) statement
+#endif
+
+NCURSES_EXPORT(unsigned)
+curses_trace(unsigned tracelevel)
{
+ unsigned result;
+
+#if defined(TRACE)
+ int bit;
+
+#define DATA(name) { name, #name }
+ static struct {
+ unsigned mask;
+ const char *name;
+ } trace_names[] = {
+ DATA(TRACE_TIMES),
+ DATA(TRACE_TPUTS),
+ DATA(TRACE_UPDATE),
+ DATA(TRACE_MOVE),
+ DATA(TRACE_CHARPUT),
+ DATA(TRACE_CALLS),
+ DATA(TRACE_VIRTPUT),
+ DATA(TRACE_IEVENT),
+ DATA(TRACE_BITS),
+ DATA(TRACE_ICALLS),
+ DATA(TRACE_CCALLS),
+ DATA(TRACE_DATABASE),
+ DATA(TRACE_ATTRS)
+ };
+#undef DATA
+
+ Locked(result = _nc_tracing);
+
if ((MyFP == 0) && tracelevel) {
MyInit = TRUE;
if (MyFD >= 0) {
- MyFP = fdopen(MyFD, "wb");
+ MyFP = fdopen(MyFD, BIN_W);
} else {
if (MyPath[0] == '\0') {
size_t size = sizeof(MyPath) - 12;
_nc_STRCAT(MyPath, ".log", sizeof(MyPath));
}
}
+#define SAFE_MODE (O_CREAT | O_EXCL | O_RDWR)
if (_nc_access(MyPath, W_OK) < 0
- || (MyFD = open(MyPath, O_CREAT | O_EXCL | O_RDWR, 0600)) < 0
- || (MyFP = fdopen(MyFD, "wb")) == 0) {
+ || (MyFD = safe_open3(MyPath, SAFE_MODE, 0600)) < 0
+ || (MyFP = fdopen(MyFD, BIN_W)) == 0) {
; /* EMPTY */
}
}
- _nc_tracing = tracelevel;
+ Locked(_nc_tracing = tracelevel);
/* Try to set line-buffered mode, or (failing that) unbuffered,
* so that the trace-output gets flushed automatically at the
- * end of each line. This is useful in case the program dies.
+ * end of each line. This is useful in case the program dies.
*/
if (MyFP != 0) {
#if HAVE_SETVBUF /* ANSI */
NCURSES_VERSION,
NCURSES_VERSION_PATCH,
tracelevel);
+
+#define SPECIAL_MASK(mask) \
+ if ((tracelevel & mask) == mask) \
+ _tracef("- %s (%u)", #mask, mask)
+
+ for (bit = 0; bit < TRACE_SHIFT; ++bit) {
+ unsigned mask = (1U << bit) & tracelevel;
+ if ((mask & trace_names[bit].mask) != 0) {
+ _tracef("- %s (%u)", trace_names[bit].name, mask);
+ }
+ }
+ SPECIAL_MASK(TRACE_MAXIMUM);
+ else
+ SPECIAL_MASK(TRACE_ORDINARY);
+
+ if (tracelevel > TRACE_MAXIMUM) {
+ _tracef("- DEBUG_LEVEL(%u)", tracelevel >> TRACE_SHIFT);
+ }
} else if (tracelevel == 0) {
if (MyFP != 0) {
MyFD = dup(MyFD); /* allow reopen of same file */
fclose(MyFP);
MyFP = 0;
}
- _nc_tracing = tracelevel;
+ Locked(_nc_tracing = tracelevel);
} else if (_nc_tracing != tracelevel) {
- _nc_tracing = tracelevel;
+ Locked(_nc_tracing = tracelevel);
_tracef("tracelevel=%#x", tracelevel);
}
+#else
+ (void) tracelevel;
+ result = 0;
+#endif
+ return result;
+}
+
+#if defined(TRACE)
+NCURSES_EXPORT(void)
+trace(const unsigned int tracelevel)
+{
+ curses_trace(tracelevel);
}
static void
# if USE_WEAK_SYMBOLS
if ((pthread_self))
# endif
-#ifdef _WIN32
+#ifdef _NC_WINDOWS
fprintf(fp, "%#lx:", (long) (intptr_t) pthread_self().p);
#else
fprintf(fp, "%#lx:", (long) (intptr_t) pthread_self());
}
NCURSES_EXPORT(void)
-_tracef(const char *fmt,...)
+_tracef(const char *fmt, ...)
{
va_list ap;
return code;
}
+NCURSES_EXPORT(char *)
+_nc_fmt_funcptr(char *target, const char *source, size_t size)
+{
+ size_t n;
+ char *dst = target;
+ bool leading = TRUE;
+
+ union {
+ int value;
+ char bytes[sizeof(int)];
+ } byteorder;
+
+ byteorder.value = 0x1234;
+
+ *dst++ = '0';
+ *dst++ = 'x';
+
+ for (n = 0; n < size; ++n) {
+ unsigned ch = ((byteorder.bytes[0] == 0x34)
+ ? UChar(source[size - n - 1])
+ : UChar(source[n]));
+ if (ch != 0 || (n + 1) >= size)
+ leading = FALSE;
+ if (!leading) {
+ _nc_SPRINTF(dst, _nc_SLIMIT(TR_FUNC_LEN - (size_t) (dst - target))
+ "%02x", ch & 0xff);
+ dst += 2;
+ }
+ }
+ *dst = '\0';
+ return target;
+}
+
#if USE_REENTRANT
/*
* Check if the given trace-mask is enabled.
* the tracef mutex.
*/
NCURSES_EXPORT(void)
-_nc_locked_tracef(const char *fmt,...)
+_nc_locked_tracef(const char *fmt, ...)
{
va_list ap;
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