X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Ftrace%2Flib_trace.c;h=34973daae8294f5394ecf096f938dae18f11c1da;hp=57d49f3d94a102b1e8300190a37b7b8d953ff133;hb=c13e57306ae5c4431fddd0fe856c3bcae6aeeb2c;hpb=46722468f47c2b77b3987729b4bcf2321cccfd01 diff --git a/ncurses/trace/lib_trace.c b/ncurses/trace/lib_trace.c index 57d49f3d..34973daa 100644 --- a/ncurses/trace/lib_trace.c +++ b/ncurses/trace/lib_trace.c @@ -1,5 +1,5 @@ /**************************************************************************** - * 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 * @@ -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 +46,40 @@ #include -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, @@ -70,12 +87,20 @@ trace(const unsigned int tracelevel GCC_UNUSED) * 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); @@ -87,22 +112,21 @@ _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; + 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 @@ -111,22 +135,22 @@ _tracef(const char *fmt,...) } 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; } @@ -162,9 +186,33 @@ _nc_retrace_ptr(char *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) +_nc_retrace_sp(SCREEN *code) { T((T_RETURN("%p"), code)); return code;