/****************************************************************************
- * Copyright (c) 1998-2005,2007 Free Software Foundation, Inc. *
+ * Copyright (c) 1998-2007,2008 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 *
#include <curses.priv.h>
-MODULE_ID("$Id: lib_data.c,v 1.34 2007/10/20 21:49:10 tom Exp $")
+MODULE_ID("$Id: lib_data.c,v 1.52 2008/08/23 22:16:15 tom Exp $")
/*
* OS/2's native linker complains if we don't initialize public data when
#define CHARS_0s { '\0' }
#define TGETENT_0 { 0L, FALSE, NULL, NULL, NULL }
-#define TGETENT_0s { TGETENT_0, TGETENT_0, TGETENT_0, TGETENT_0 }
+#define TGETENT_0s { TGETENT_0, TGETENT_0, TGETENT_0, TGETENT_0 }
NCURSES_EXPORT_VAR(NCURSES_GLOBALS) _nc_globals = {
0, /* have_sigwinch */
NULL, /* first_name */
NULL, /* keyname_table */
+ 0, /* slk_format */
+
NULL, /* safeprint_buf */
0, /* safeprint_used */
0, /* tgetent_index */
0, /* tgetent_sequence */
+ 0, /* _nc_windowlist */
+
#if USE_HOME_TERMINFO
NULL, /* home_terminfo */
#endif
NULL, /* tracedmp_buf */
0, /* tracedmp_used */
- CHARS_0s, /* tracemse_buf */
-
NULL, /* tracetry_buf */
0, /* tracetry_used */
-#ifndef USE_TERMLIB
{ CHARS_0s, CHARS_0s }, /* traceatr_color_buf */
0, /* traceatr_color_sel */
-1, /* traceatr_color_last */
-#endif /* USE_TERMLIB */
#endif /* TRACE */
#ifdef USE_PTHREADS
- PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP, /* mutex_set_SP */
- PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP, /* mutex_use_screen */
- PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP, /* mutex_use_window */
- PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP, /* mutex_windowlist */
+ PTHREAD_MUTEX_INITIALIZER, /* mutex_curses */
PTHREAD_MUTEX_INITIALIZER, /* mutex_tst_tracef */
PTHREAD_MUTEX_INITIALIZER, /* mutex_tracef */
0, /* nested_tracef */
+ 0, /* use_pthreads */
#endif
};
#define STACK_FRAME_0s { STACK_FRAME_0 }
#define NUM_VARS_0s { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 }
-#define RIPOFF_0 { 0,0 }
+#define RIPOFF_0 { 0,0,0 }
#define RIPOFF_0s { RIPOFF_0 }
NCURSES_EXPORT_VAR(NCURSES_PRESCREEN) _nc_prescreen = {
NUM_VARS_0s, /* static_vars */
},
NULL, /* saved_tty */
+#if NCURSES_NO_PADDING
+ FALSE, /* flag to set if padding disabled */
+#endif
#if BROKEN_LINKER || USE_REENTRANT
NULL, /* real_acs_map */
0, /* LINES */
0, /* COLS */
+ 0, /* cur_term */
#ifdef TRACE
0L, /* _outchars */
NULL, /* _tputs_trace */
#endif
};
/* *INDENT-ON* */
+
+/******************************************************************************/
+#ifdef USE_PTHREADS
+static void
+init_global_mutexes(void)
+{
+ static bool initialized = FALSE;
+
+ if (!initialized) {
+ initialized = TRUE;
+ _nc_mutex_init(&_nc_globals.mutex_curses);
+ _nc_mutex_init(&_nc_globals.mutex_tst_tracef);
+ _nc_mutex_init(&_nc_globals.mutex_tracef);
+ }
+}
+
+NCURSES_EXPORT(void)
+_nc_init_pthreads(void)
+{
+ if (_nc_use_pthreads)
+ return;
+# if USE_WEAK_SYMBOLS
+ if ((pthread_mutex_init) == 0)
+ return;
+ if ((pthread_mutex_lock) == 0)
+ return;
+ if ((pthread_mutex_unlock) == 0)
+ return;
+ if ((pthread_mutex_trylock) == 0)
+ return;
+ if ((pthread_mutexattr_settype) == 0)
+ return;
+# endif
+ _nc_use_pthreads = 1;
+ init_global_mutexes();
+}
+
+/*
+ * Use recursive mutexes if we have them - they're part of Unix98.
+ * For the cases where we do not, _nc_mutex_trylock() is used to avoid a
+ * deadlock, at the expense of memory leaks and unexpected failures that
+ * may not be handled by typical clients.
+ *
+ * FIXME - need configure check for PTHREAD_MUTEX_RECURSIVE, define it to
+ * PTHREAD_MUTEX_NORMAL if not supported.
+ */
+NCURSES_EXPORT(void)
+_nc_mutex_init(pthread_mutex_t * obj)
+{
+ pthread_mutexattr_t recattr;
+
+ if (_nc_use_pthreads) {
+ pthread_mutexattr_init(&recattr);
+ pthread_mutexattr_settype(&recattr, PTHREAD_MUTEX_RECURSIVE);
+ pthread_mutex_init(obj, &recattr);
+ }
+}
+
+NCURSES_EXPORT(int)
+_nc_mutex_lock(pthread_mutex_t * obj)
+{
+ if (_nc_use_pthreads == 0)
+ return 0;
+ return pthread_mutex_lock(obj);
+}
+
+NCURSES_EXPORT(int)
+_nc_mutex_trylock(pthread_mutex_t * obj)
+{
+ if (_nc_use_pthreads == 0)
+ return 0;
+ return pthread_mutex_trylock(obj);
+}
+
+NCURSES_EXPORT(int)
+_nc_mutex_unlock(pthread_mutex_t * obj)
+{
+ if (_nc_use_pthreads == 0)
+ return 0;
+ return pthread_mutex_unlock(obj);
+}
+
+#if USE_WEAK_SYMBOLS
+/*
+ * NB: sigprocmask(2) is global but pthread_sigmask(3p)
+ * only for the calling thread.
+ */
+NCURSES_EXPORT(int)
+_nc_sigprocmask(int how, const sigset_t * newmask, sigset_t * oldmask)
+{
+ if ((pthread_sigmask))
+ return pthread_sigmask(how, newmask, oldmask);
+ else
+ return sigprocmask(how, newmask, oldmask);
+}
+#endif
+#endif /* USE_PTHREADS */