diff options
Diffstat (limited to 'contrib/ncurses/ncurses/trace/lib_trace.c')
-rw-r--r-- | contrib/ncurses/ncurses/trace/lib_trace.c | 161 |
1 files changed, 125 insertions, 36 deletions
diff --git a/contrib/ncurses/ncurses/trace/lib_trace.c b/contrib/ncurses/ncurses/trace/lib_trace.c index 7f78122..d634438 100644 --- a/contrib/ncurses/ncurses/trace/lib_trace.c +++ b/contrib/ncurses/ncurses/trace/lib_trace.c @@ -1,5 +1,5 @@ /**************************************************************************** - * Copyright (c) 1998-2004,2005 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 * @@ -46,37 +46,69 @@ #include <ctype.h> -MODULE_ID("$Id: lib_trace.c,v 1.59 2006/08/19 12:05:25 tom Exp $") +MODULE_ID("$Id: lib_trace.c,v 1.65 2007/09/29 21:47:46 tom Exp $") NCURSES_EXPORT_VAR(unsigned) _nc_tracing = 0; /* always define this */ #ifdef TRACE + +#if USE_REENTRANT +NCURSES_EXPORT(const char *) +NCURSES_PUBLIC_VAR(_nc_tputs_trace) (void) +{ + return SP ? SP->_tputs_trace : _nc_prescreen._tputs_trace; +} +NCURSES_EXPORT(long) +NCURSES_PUBLIC_VAR(_nc_outchars) (void) +{ + return SP ? SP->_outchars : _nc_prescreen._outchars; +} +NCURSES_EXPORT(void) +_nc_set_tputs_trace(const char *s) +{ + if (SP) + SP->_tputs_trace = s; + else + _nc_prescreen._tputs_trace = s; +} +NCURSES_EXPORT(void) +_nc_count_outchars(long increment) +{ + if (SP) + SP->_outchars += increment; + else + _nc_prescreen._outchars += increment; +} +#else NCURSES_EXPORT_VAR(const char *) _nc_tputs_trace = ""; NCURSES_EXPORT_VAR(long) _nc_outchars = 0; +#endif -static FILE *tracefp = 0; /* 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) { - static bool been_here = FALSE; - static char my_name[PATH_MAX]; - - if ((tracefp == 0) && tracelevel) { - const char *mode = been_here ? "ab" : "wb"; + if ((TraceFP == 0) && tracelevel) { + const char *mode = _nc_globals.init_trace ? "ab" : "wb"; - if (*my_name == '\0') { - if (getcwd(my_name, sizeof(my_name) - 10) == 0) { + if (TracePath[0] == '\0') { + if (getcwd(TracePath, sizeof(TracePath) - 12) == 0) { perror("curses: Can't get working directory"); exit(EXIT_FAILURE); } - strcat(my_name, "/trace"); + strcat(TracePath, "/trace"); + if (_nc_is_dir_path(TracePath)) { + strcat(TracePath, ".log"); + } } - been_here = TRUE; + _nc_globals.init_trace = TRUE; _nc_tracing = tracelevel; - if (_nc_access(my_name, W_OK) < 0 - || (tracefp = fopen(my_name, mode)) == 0) { + if (_nc_access(TracePath, W_OK) < 0 + || (TraceFP = fopen(TracePath, mode)) == 0) { perror("curses: Can't open 'trace' file"); exit(EXIT_FAILURE); } @@ -85,18 +117,18 @@ trace(const unsigned int tracelevel) * 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.%d (tracelevel=%#x)", NCURSES_VERSION, NCURSES_VERSION_PATCH, tracelevel); } else if (tracelevel == 0) { - if (tracefp != 0) { - fclose(tracefp); - tracefp = 0; + if (TraceFP != 0) { + fclose(TraceFP); + TraceFP = 0; } _nc_tracing = tracelevel; } else if (_nc_tracing != tracelevel) { @@ -105,13 +137,12 @@ trace(const unsigned int tracelevel) } } -NCURSES_EXPORT(void) -_tracef(const char *fmt,...) +static void +_nc_va_tracef(const char *fmt, va_list ap) { static const char Called[] = T_CALLED(""); static const char Return[] = T_RETURN(""); - static int level; - va_list ap; + bool before = FALSE; bool after = FALSE; unsigned doit = _nc_tracing; @@ -120,12 +151,12 @@ _tracef(const char *fmt,...) 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 @@ -134,25 +165,34 @@ _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); - va_end(ap); - fflush(tracefp); + vfprintf(TraceFP, fmt, ap); + fputc('\n', TraceFP); + fflush(TraceFP); } - if (after && level) - level--; + if (after && TraceLevel) + TraceLevel--; + errno = save_err; } +NCURSES_EXPORT(void) +_tracef(const char *fmt,...) +{ + va_list ap; + + va_start(ap, fmt); + _nc_va_tracef(fmt, ap); + va_end(ap); +} + /* Trace 'bool' return-values */ NCURSES_EXPORT(NCURSES_BOOL) _nc_retrace_bool(NCURSES_BOOL code) @@ -224,4 +264,53 @@ _nc_retrace_win(WINDOW *code) T((T_RETURN("%p"), code)); return code; } + +#if USE_REENTRANT +/* + * Check if the given trace-mask is enabled. + * + * This function may be called from within one of the functions that fills + * in parameters for _tracef(), but in that case we do not want to lock the + * mutex, since it is already locked. + */ +NCURSES_EXPORT(int) +_nc_use_tracef(unsigned mask) +{ + bool result = FALSE; + + _nc_lock_global(tst_tracef); + if (!_nc_globals.nested_tracef++) { + if ((result = (_nc_tracing & (mask))) != 0) { + /* we will call _nc_locked_tracef(), no nesting so far */ + _nc_lock_global(tracef); + } else { + /* we will not call _nc_locked_tracef() */ + _nc_globals.nested_tracef = 0; + } + } else { + /* we may call _nc_locked_tracef(), but with nested_tracef > 0 */ + result = (_nc_tracing & (mask)); + } + _nc_unlock_global(tst_tracef); + return result; +} + +/* + * We call this if _nc_use_tracef() returns true, which means we must unlock + * the tracef mutex. + */ +NCURSES_EXPORT(void) +_nc_locked_tracef(const char *fmt,...) +{ + va_list ap; + + va_start(ap, fmt); + _nc_va_tracef(fmt, ap); + va_end(ap); + + if (--(_nc_globals.nested_tracef) == 0) + _nc_unlock_global(tracef); +} +#endif /* USE_REENTRANT */ + #endif /* TRACE */ |