X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Ftrace%2Flib_trace.c;h=7f78122179997aaca583a003d900323e72db3d94;hp=51260aec6b1737394e898ab1323d3e87a8ec8ed2;hb=027ae42953e3186daed8f3882da73de48291b606;hpb=b1f61d9f3aa244512045a6b02e759825d7049d34 diff --git a/ncurses/trace/lib_trace.c b/ncurses/trace/lib_trace.c index 51260aec..7f781221 100644 --- a/ncurses/trace/lib_trace.c +++ b/ncurses/trace/lib_trace.c @@ -1,5 +1,5 @@ /**************************************************************************** - * 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 * @@ -29,10 +29,16 @@ /**************************************************************************** * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * + * 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 @@ -40,29 +46,38 @@ #include -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, @@ -74,75 +89,23 @@ trace(const unsigned int tracelevel GCC_UNUSED) #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(""); @@ -151,7 +114,7 @@ _tracef(const char *fmt,...) 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) { @@ -190,24 +153,72 @@ _tracef(const char *fmt,...) 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));