X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Ftinfo%2Flib_setup.c;h=b43aa9528a1e8bee44f93a7c46801506eaa8a716;hp=9968083c9ff10cb91448ff480696ced5d4318a63;hb=45291421bee33c79ffb4c8f0e1b67ca5cc262114;hpb=7a6bbc8cf41c5186d46accc3d08622dc86526b34 diff --git a/ncurses/tinfo/lib_setup.c b/ncurses/tinfo/lib_setup.c index 9968083c..b43aa952 100644 --- a/ncurses/tinfo/lib_setup.c +++ b/ncurses/tinfo/lib_setup.c @@ -1,5 +1,5 @@ /**************************************************************************** - * Copyright (c) 1998-2008,2009 Free Software Foundation, Inc. * + * Copyright (c) 1998-2017,2018 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 * @@ -37,24 +37,18 @@ * Terminal setup routines common to termcap and terminfo: * * use_env(bool) + * use_tioctl(bool) * setupterm(char *, int, int *) */ #include #include /* for MAX_NAME_SIZE */ -#include - -#if SVR4_TERMIO && !defined(_POSIX_SOURCE) -#define _POSIX_SOURCE -#endif #if HAVE_LOCALE_H #include #endif -#include /* lines, columns, cur_term */ - -MODULE_ID("$Id: lib_setup.c,v 1.114 2009/04/18 23:52:03 tom Exp $") +MODULE_ID("$Id: lib_setup.c,v 1.197 2018/11/24 22:13:16 tom Exp $") /**************************************************************************** * @@ -104,48 +98,74 @@ MODULE_ID("$Id: lib_setup.c,v 1.114 2009/04/18 23:52:03 tom Exp $") * Reduce explicit use of "cur_term" global variable. */ #undef CUR -#define CUR termp->type. +#define CUR TerminalType(termp). /* * Wrap global variables in this module. */ #if USE_REENTRANT + NCURSES_EXPORT(char *) NCURSES_PUBLIC_VAR(ttytype) (void) { static char empty[] = ""; - return cur_term ? cur_term->type.term_names : empty; + char *result = empty; + +#if NCURSES_SP_FUNCS + if (CURRENT_SCREEN) { + TERMINAL *termp = TerminalOf(CURRENT_SCREEN); + if (termp != 0) { + result = TerminalType(termp).term_names; + } + } +#else + if (cur_term != 0) { + result = TerminalType(cur_term).term_names; + } +#endif + return result; } + NCURSES_EXPORT(int *) -_nc_ptr_Lines(void) +_nc_ptr_Lines(SCREEN *sp) { - return ptrLines(CURRENT_SCREEN); + return ptrLines(sp); } + NCURSES_EXPORT(int) NCURSES_PUBLIC_VAR(LINES) (void) { - return *_nc_ptr_Lines(); + return *_nc_ptr_Lines(CURRENT_SCREEN); } + NCURSES_EXPORT(int *) -_nc_ptr_Cols(void) +_nc_ptr_Cols(SCREEN *sp) { - return ptrCols(CURRENT_SCREEN); + return ptrCols(sp); } + NCURSES_EXPORT(int) NCURSES_PUBLIC_VAR(COLS) (void) { - return *_nc_ptr_Cols(); + return *_nc_ptr_Cols(CURRENT_SCREEN); } + +NCURSES_EXPORT(int *) +_nc_ptr_Tabsize(SCREEN *sp) +{ + return ptrTabsize(sp); +} + NCURSES_EXPORT(int) NCURSES_PUBLIC_VAR(TABSIZE) (void) { - return SP ? SP->_TABSIZE : 8; + return *_nc_ptr_Tabsize(CURRENT_SCREEN); } #else NCURSES_EXPORT_VAR(char) ttytype[NAMESIZE] = ""; NCURSES_EXPORT_VAR(int) LINES = 0; NCURSES_EXPORT_VAR(int) COLS = 0; -NCURSES_EXPORT_VAR(int) TABSIZE = 0; +NCURSES_EXPORT_VAR(int) TABSIZE = 8; #endif #if NCURSES_EXT_FUNCS @@ -200,12 +220,30 @@ _nc_handle_sigwinch(SCREEN *sp) NCURSES_EXPORT(void) NCURSES_SP_NAME(use_env) (NCURSES_SP_DCLx bool f) { - T((T_CALLED("use_env()"))); + START_TRACE(); + T((T_CALLED("use_env(%p,%d)"), (void *) SP_PARM, (int) f)); +#if NCURSES_SP_FUNCS if (IsPreScreen(SP_PARM)) { SP_PARM->_use_env = f; - } else { - _nc_prescreen.use_env = f; } +#else + _nc_prescreen.use_env = f; +#endif + returnVoid; +} + +NCURSES_EXPORT(void) +NCURSES_SP_NAME(use_tioctl) (NCURSES_SP_DCLx bool f) +{ + START_TRACE(); + T((T_CALLED("use_tioctl(%p,%d)"), (void *) SP_PARM, (int) f)); +#if NCURSES_SP_FUNCS + if (IsPreScreen(SP_PARM)) { + SP_PARM->use_tioctl = f; + } +#else + _nc_prescreen.use_tioctl = f; +#endif returnVoid; } @@ -213,74 +251,132 @@ NCURSES_SP_NAME(use_env) (NCURSES_SP_DCLx bool f) NCURSES_EXPORT(void) use_env(bool f) { - NCURSES_SP_NAME(use_env) (CURRENT_SCREEN, f); + START_TRACE(); + T((T_CALLED("use_env(%d)"), (int) f)); + _nc_prescreen.use_env = f; + returnVoid; +} + +NCURSES_EXPORT(void) +use_tioctl(bool f) +{ + START_TRACE(); + T((T_CALLED("use_tioctl(%d)"), (int) f)); + _nc_prescreen.use_tioctl = f; + returnVoid; } #endif NCURSES_EXPORT(void) -_nc_get_screensize(SCREEN *sp, int *linep, int *colp) +_nc_get_screensize(SCREEN *sp, +#ifdef USE_TERM_DRIVER + TERMINAL *termp, +#endif + int *linep, int *colp) /* Obtain lines/columns values from the environment and/or terminfo entry */ { +#ifdef USE_TERM_DRIVER + TERMINAL_CONTROL_BLOCK *TCB; + int my_tabsize; + + assert(termp != 0 && linep != 0 && colp != 0); + TCB = (TERMINAL_CONTROL_BLOCK *) termp; + + my_tabsize = TCB->info.tabsize; + TCB->drv->td_size(TCB, linep, colp); + +#if USE_REENTRANT + if (sp != 0) { + sp->_TABSIZE = my_tabsize; + } +#else + (void) sp; + TABSIZE = my_tabsize; +#endif + T(("TABSIZE = %d", my_tabsize)); +#else /* !USE_TERM_DRIVER */ TERMINAL *termp = cur_term; int my_tabsize; + bool useEnv = _nc_prescreen.use_env; + bool useTioctl = _nc_prescreen.use_tioctl; /* figure out the size of the screen */ T(("screen size: terminfo lines = %d columns = %d", lines, columns)); - if (!_nc_prescreen.use_env) { - *linep = (int) lines; - *colp = (int) columns; - } else { /* usually want to query LINES and COLUMNS from environment */ - int value; - - *linep = *colp = 0; + *linep = (int) lines; + *colp = (int) columns; - /* first, look for environment variables */ - if ((value = _nc_getenv_num("LINES")) > 0) { - *linep = value; - } - if ((value = _nc_getenv_num("COLUMNS")) > 0) { - *colp = value; - } - T(("screen size: environment LINES = %d COLUMNS = %d", *linep, *colp)); +#if NCURSES_SP_FUNCS + if (sp) { + useEnv = sp->_use_env; + useTioctl = sp->use_tioctl; + } +#endif + if (useEnv || useTioctl) { #ifdef __EMX__ - if (*linep <= 0 || *colp <= 0) { + { int screendata[2]; _scrsize(screendata); *colp = screendata[0]; - *linep = screendata[1]; + *linep = ((sp != 0 && sp->_filtered) + ? 1 + : screendata[1]); T(("EMX screen size: environment LINES = %d COLUMNS = %d", *linep, *colp)); } #endif #if HAVE_SIZECHANGE - /* if that didn't work, maybe we can try asking the OS */ - if (*linep <= 0 || *colp <= 0) { - if (isatty(cur_term->Filedes)) { - STRUCT_WINSIZE size; - - errno = 0; - do { - if (ioctl(cur_term->Filedes, IOCTL_WINSIZE, &size) < 0 - && errno != EINTR) - goto failure; - } while - (errno == EINTR); + /* try asking the OS */ + if (NC_ISATTY(cur_term->Filedes)) { + STRUCT_WINSIZE size; + + errno = 0; + do { + if (ioctl(cur_term->Filedes, IOCTL_WINSIZE, &size) >= 0) { + *linep = ((sp != 0 && sp->_filtered) + ? 1 + : WINSIZE_ROWS(size)); + *colp = WINSIZE_COLS(size); + T(("SYS screen size: environment LINES = %d COLUMNS = %d", + *linep, *colp)); + break; + } + } while + (errno == EINTR); + } +#endif /* HAVE_SIZECHANGE */ + if (useEnv) { + int value; + + if (useTioctl) { /* - * Solaris lets users override either dimension with an - * environment variable. + * If environment variables are used, update them. */ - if (*linep <= 0) - *linep = (sp != 0 && sp->_filtered) ? 1 : WINSIZE_ROWS(size); - if (*colp <= 0) - *colp = WINSIZE_COLS(size); + if ((sp == 0 || !sp->_filtered) && _nc_getenv_num("LINES") > 0) { + _nc_setenv_num("LINES", *linep); + } + if (_nc_getenv_num("COLUMNS") > 0) { + _nc_setenv_num("COLUMNS", *colp); + } + } + + /* + * Finally, look for environment variables. + * + * Solaris lets users override either dimension with an environment + * variable. + */ + if ((value = _nc_getenv_num("LINES")) > 0) { + *linep = value; + T(("screen size: environment LINES = %d", *linep)); + } + if ((value = _nc_getenv_num("COLUMNS")) > 0) { + *colp = value; + T(("screen size: environment COLUMNS = %d", *colp)); } - /* FALLTHRU */ - failure:; } -#endif /* HAVE_SIZECHANGE */ /* if we can't get dynamic info about the size, use static */ if (*linep <= 0) { @@ -302,8 +398,14 @@ _nc_get_screensize(SCREEN *sp, int *linep, int *colp) * Put the derived values back in the screen-size caps, so * tigetnum() and tgetnum() will do the right thing. */ - lines = (short) (*linep); - columns = (short) (*colp); + lines = (NCURSES_INT2) (*linep); + columns = (NCURSES_INT2) (*colp); +#if NCURSES_EXT_NUMBERS +#define OldNumber(termp,name) \ + (termp)->type.Numbers[(&name - (termp)->type2.Numbers)] + OldNumber(termp, lines) = (short) (*linep); + OldNumber(termp, columns) = (short) (*colp); +#endif } T(("screen size is %dx%d", *linep, *colp)); @@ -320,29 +422,43 @@ _nc_get_screensize(SCREEN *sp, int *linep, int *colp) TABSIZE = my_tabsize; #endif T(("TABSIZE = %d", TABSIZE)); +#endif /* USE_TERM_DRIVER */ } #if USE_SIZECHANGE NCURSES_EXPORT(void) _nc_update_screensize(SCREEN *sp) { + int new_lines; + int new_cols; + +#ifdef USE_TERM_DRIVER + int old_lines; + int old_cols; + + assert(sp != 0); + + CallDriver_2(sp, td_getsize, &old_lines, &old_cols); + +#else TERMINAL *termp = cur_term; int old_lines = lines; - int new_lines; int old_cols = columns; - int new_cols; +#endif - _nc_get_screensize(sp, &new_lines, &new_cols); + TINFO_GET_SIZE(sp, sp->_term, &new_lines, &new_cols); /* * See is_term_resized() and resizeterm(). * We're doing it this way because those functions belong to the upper * ncurses library, while this resides in the lower terminfo library. */ - if (sp != 0 - && sp->_resize != 0) { - if ((new_lines != old_lines) || (new_cols != old_cols)) - sp->_resize(new_lines, new_cols); + if (sp != 0 && sp->_resize != 0) { + if ((new_lines != old_lines) || (new_cols != old_cols)) { + sp->_resize(NCURSES_SP_ARGx new_lines, new_cols); + } else if (sp->_sig_winch && (sp->_ungetch != 0)) { + sp->_ungetch(SP_PARM, KEY_RESIZE); /* so application can know this */ + } sp->_sig_winch = FALSE; } } @@ -354,32 +470,16 @@ _nc_update_screensize(SCREEN *sp) * ****************************************************************************/ -#define ret_error(code, fmt, arg) if (errret) {\ - *errret = code;\ - returnCode(ERR);\ - } else {\ - fprintf(stderr, fmt, arg);\ - exit(EXIT_FAILURE);\ - } - -#define ret_error0(code, msg) if (errret) {\ - *errret = code;\ - returnCode(ERR);\ - } else {\ - fprintf(stderr, msg);\ - exit(EXIT_FAILURE);\ - } - -#if USE_DATABASE || USE_TERMCAP +#if NCURSES_USE_DATABASE || NCURSES_USE_TERMCAP /* * Return 1 if entry found, 0 if not found, -1 if database not accessible, * just like tgetent(). */ -static int -grab_entry(const char *const tn, TERMTYPE *const tp) +int +_nc_setup_tinfo(const char *const tn, TERMTYPE2 *const tp) { char filename[PATH_MAX]; - int status = _nc_read_entry(tn, filename, tp); + int status = _nc_read_entry2(tn, filename, tp); /* * If we have an entry, force all of the cancelled strings to null @@ -403,28 +503,27 @@ grab_entry(const char *const tn, TERMTYPE *const tp) #endif /* -** do_prototype() -** ** Take the real command character out of the CC environment variable ** and substitute it in for the prototype given in 'command_character'. */ -static void -do_prototype(TERMINAL * termp) +void +_nc_tinfo_cmdch(TERMINAL *termp, int proto) { - unsigned i; - char CC; - char proto; char *tmp; - if ((tmp = getenv("CC")) != 0) { - if ((CC = *tmp) != 0) { - proto = *command_character; - - for_each_string(i, &(termp->type)) { - for (tmp = termp->type.Strings[i]; *tmp; tmp++) { - if (*tmp == proto) - *tmp = CC; - } + /* + * Only use the character if the string is a single character, + * since it is fairly common for developers to set the C compiler + * name as an environment variable - using the same symbol. + */ + if ((tmp = getenv("CC")) != 0 && strlen(tmp) == 1) { + unsigned i; + char CC = *tmp; + + for_each_string(i, &(termp->type)) { + for (tmp = termp->type.Strings[i]; tmp && *tmp; tmp++) { + if (UChar(*tmp) == proto) + *tmp = CC; } } } @@ -444,9 +543,9 @@ _nc_get_locale(void) */ env = setlocale(LC_CTYPE, 0); #else - if (((env = getenv("LC_ALL")) != 0 && *env != '\0') + if (((env = getenv("LANG")) != 0 && *env != '\0') || ((env = getenv("LC_CTYPE")) != 0 && *env != '\0') - || ((env = getenv("LANG")) != 0 && *env != '\0')) { + || ((env = getenv("LC_ALL")) != 0 && *env != '\0')) { ; } #endif @@ -461,7 +560,9 @@ NCURSES_EXPORT(int) _nc_unicode_locale(void) { int result = 0; -#if HAVE_LANGINFO_CODESET +#if defined(_WIN32) && USE_WIDEC_SUPPORT + result = 1; +#elif HAVE_LANGINFO_CODESET char *env = nl_langinfo(CODESET); result = !strcmp(env, "UTF-8"); T(("_nc_unicode_locale(%s) ->%d", env, result)); @@ -485,46 +586,74 @@ _nc_unicode_locale(void) * character set. */ NCURSES_EXPORT(int) -_nc_locale_breaks_acs(TERMINAL * termp) +_nc_locale_breaks_acs(TERMINAL *termp) { - char *env; + const char *env_name = "NCURSES_NO_UTF8_ACS"; + const char *env; + int value; + int result = 0; - if ((env = getenv("NCURSES_NO_UTF8_ACS")) != 0) { - return atoi(env); + T((T_CALLED("_nc_locale_breaks_acs:%d"), result)); + if (getenv(env_name) != 0) { + result = _nc_getenv_num(env_name); + } else if ((value = tigetnum("U8")) >= 0) { + result = value; /* use extension feature */ } else if ((env = getenv("TERM")) != 0) { - if (strstr(env, "linux")) - return 1; /* always broken */ - if (strstr(env, "screen") != 0 - && ((env = getenv("TERMCAP")) != 0 - && strstr(env, "screen") != 0) - && strstr(env, "hhII00") != 0) { + if (strstr(env, "linux")) { + result = 1; /* always broken */ + } else if (strstr(env, "screen") != 0 + && ((env = getenv("TERMCAP")) != 0 + && strstr(env, "screen") != 0) + && strstr(env, "hhII00") != 0) { if (CONTROL_N(enter_alt_charset_mode) || CONTROL_O(enter_alt_charset_mode) || CONTROL_N(set_attributes) || - CONTROL_O(set_attributes)) - return 1; + CONTROL_O(set_attributes)) { + result = 1; + } } } - return 0; + returnCode(result); } -/* - * This entrypoint is called from tgetent() to allow a special case of reusing - * the same TERMINAL data (see comment). - */ NCURSES_EXPORT(int) -_nc_setupterm(NCURSES_CONST char *tname, int Filedes, int *errret, bool reuse) +TINFO_SETUP_TERM(TERMINAL **tp, + const char *tname, + int Filedes, + int *errret, + int reuse) { +#ifdef USE_TERM_DRIVER + TERMINAL_CONTROL_BLOCK *TCB = 0; +#endif TERMINAL *termp; - int status; + SCREEN *sp = 0; + int code = ERR; START_TRACE(); - T((T_CALLED("setupterm(%s,%d,%p)"), _nc_visbuf(tname), Filedes, errret)); + +#ifdef USE_TERM_DRIVER + T((T_CALLED("_nc_setupterm_ex(%p,%s,%d,%p)"), + (void *) tp, _nc_visbuf(tname), Filedes, (void *) errret)); + + if (tp == 0) { + ret_error0(TGETENT_ERR, + "Invalid parameter, internal error.\n"); + } else + termp = *tp; +#else + termp = cur_term; + T((T_CALLED("setupterm(%s,%d,%p)"), _nc_visbuf(tname), Filedes, (void *) errret)); +#endif if (tname == 0) { tname = getenv("TERM"); if (tname == 0 || *tname == '\0') { +#ifdef USE_TERM_DRIVER + tname = "unknown"; +#else ret_error0(TGETENT_ERR, "TERM environment variable not set.\n"); +#endif } } @@ -540,7 +669,7 @@ _nc_setupterm(NCURSES_CONST char *tname, int Filedes, int *errret, bool reuse) * Allow output redirection. This is what SVr3 does. If stdout is * directed to a file, screen updates go to standard error. */ - if (Filedes == STDOUT_FILENO && !isatty(Filedes)) + if (Filedes == STDOUT_FILENO && !NC_ISATTY(Filedes)) Filedes = STDERR_FILENO; /* @@ -560,32 +689,76 @@ _nc_setupterm(NCURSES_CONST char *tname, int Filedes, int *errret, bool reuse) * properly with this feature). */ if (reuse - && (termp = cur_term) != 0 + && (termp != 0) && termp->Filedes == Filedes && termp->_termname != 0 && !strcmp(termp->_termname, tname) - && _nc_name_match(termp->type.term_names, tname, "|")) { + && _nc_name_match(TerminalType(termp).term_names, tname, "|")) { T(("reusing existing terminal information and mode-settings")); + code = OK; +#ifdef USE_TERM_DRIVER + TCB = (TERMINAL_CONTROL_BLOCK *) termp; +#endif } else { +#ifdef USE_TERM_DRIVER + TERMINAL_CONTROL_BLOCK *my_tcb; + termp = 0; + if ((my_tcb = typeCalloc(TERMINAL_CONTROL_BLOCK, 1)) != 0) + termp = &(my_tcb->term); +#else + int status; termp = typeCalloc(TERMINAL, 1); - +#endif if (termp == 0) { ret_error0(TGETENT_ERR, "Not enough memory to create terminal structure.\n"); } -#if USE_DATABASE || USE_TERMCAP - status = grab_entry(tname, &termp->type); +#if HAVE_SYSCONF + { + long limit; +#ifdef LINE_MAX + limit = LINE_MAX; #else + limit = _nc_globals.getstr_limit; +#endif +#ifdef _SC_LINE_MAX + if (limit < sysconf(_SC_LINE_MAX)) + limit = sysconf(_SC_LINE_MAX); +#endif + if (_nc_globals.getstr_limit < (int) limit) + _nc_globals.getstr_limit = (int) limit; + } +#endif /* HAVE_SYSCONF */ + T(("using %d for getstr limit", _nc_globals.getstr_limit)); + +#ifdef USE_TERM_DRIVER + INIT_TERM_DRIVER(); + TCB = (TERMINAL_CONTROL_BLOCK *) termp; + code = _nc_globals.term_driver(TCB, tname, errret); + if (code == OK) { + termp->Filedes = (short) Filedes; + termp->_termname = strdup(tname); + } else { + ret_error0(errret ? *errret : TGETENT_ERR, + "Could not find any driver to handle this terminal.\n"); + } +#else +#if NCURSES_USE_DATABASE || NCURSES_USE_TERMCAP + status = _nc_setup_tinfo(tname, &TerminalType(termp)); + T(("_nc_setup_tinfo returns %d", status)); +#else + T(("no database available")); status = TGETENT_NO; #endif /* try fallback list if entry on disk */ if (status != TGETENT_YES) { - const TERMTYPE *fallback = _nc_fallback(tname); + const TERMTYPE2 *fallback = _nc_fallback2(tname); if (fallback) { - termp->type = *fallback; + T(("found fallback entry")); + TerminalType(termp) = *fallback; status = TGETENT_YES; } } @@ -595,50 +768,200 @@ _nc_setupterm(NCURSES_CONST char *tname, int Filedes, int *errret, bool reuse) if (status == TGETENT_ERR) { ret_error0(status, "terminals database is inaccessible\n"); } else if (status == TGETENT_NO) { - ret_error(status, "'%s': unknown terminal type.\n", tname); + ret_error1(status, "unknown terminal type.\n", tname); } } +#if NCURSES_EXT_NUMBERS + _nc_export_termtype2(&termp->type, &TerminalType(termp)); +#endif #if !USE_REENTRANT - strncpy(ttytype, termp->type.term_names, NAMESIZE - 1); - ttytype[NAMESIZE - 1] = '\0'; + save_ttytype(termp); #endif - termp->Filedes = Filedes; + termp->Filedes = (short) Filedes; termp->_termname = strdup(tname); set_curterm(termp); - if (command_character && getenv("CC")) - do_prototype(termp); + if (command_character) + _nc_tinfo_cmdch(termp, UChar(*command_character)); /* * If an application calls setupterm() rather than initscr() or * newterm(), we will not have the def_prog_mode() call in * _nc_setupscreen(). Do it now anyway, so we can initialize the - * baudrate. + * baudrate. Also get the shell-mode so that erasechar() works. */ - if (isatty(Filedes)) { - def_prog_mode(); + if (NC_ISATTY(Filedes)) { + NCURSES_SP_NAME(def_shell_mode) (NCURSES_SP_ARG); + NCURSES_SP_NAME(def_prog_mode) (NCURSES_SP_ARG); baudrate(); } + code = OK; +#endif } +#ifdef USE_TERM_DRIVER + *tp = termp; + NCURSES_SP_NAME(set_curterm) (sp, termp); + TCB->drv->td_init(TCB); +#else + sp = SP; +#endif + /* * We should always check the screensize, just in case. */ - _nc_get_screensize(SP, ptrLines(SP), ptrCols(SP)); + TINFO_GET_SIZE(sp, termp, ptrLines(sp), ptrCols(sp)); if (errret) *errret = TGETENT_YES; +#ifndef USE_TERM_DRIVER if (generic_type) { - ret_error(TGETENT_NO, "'%s': I need something more specific.\n", tname); + /* + * BSD 4.3's termcap contains mis-typed "gn" for wy99. Do a sanity + * check before giving up. + */ + if ((VALID_STRING(cursor_address) + || (VALID_STRING(cursor_down) && VALID_STRING(cursor_home))) + && VALID_STRING(clear_screen)) { + ret_error1(TGETENT_YES, "terminal is not really generic.\n", tname); + } else { + del_curterm(termp); + ret_error1(TGETENT_NO, "I need something more specific.\n", tname); + } + } else if (hard_copy) { + ret_error1(TGETENT_YES, "I can't handle hardcopy terminals.\n", tname); + } +#endif + returnCode(code); +} + +#ifdef USE_PTHREADS +/* + * Returns a non-null pointer unless a new screen should be allocated because + * no match was found in the pre-screen cache. + */ +NCURSES_EXPORT(SCREEN *) +_nc_find_prescr(void) +{ + SCREEN *result = 0; + PRESCREEN_LIST *p; + pthread_t id = GetThreadID(); + for (p = _nc_prescreen.allocated; p != 0; p = p->next) { + if (p->id == id) { + result = p->sp; + break; + } } - if (hard_copy) { - ret_error(TGETENT_YES, "'%s': I can't handle hardcopy terminals.\n", tname); + return result; +} + +/* + * Tells ncurses to forget that this thread was associated with the pre-screen + * cache. It does not modify the pre-screen cache itself, since that is used + * for creating new screens. + */ +NCURSES_EXPORT(void) +_nc_forget_prescr(void) +{ + PRESCREEN_LIST *p, *q; + pthread_t id = GetThreadID(); + for (p = _nc_prescreen.allocated, q = 0; p != 0; q = p, p = p->next) { + if (p->id == id) { + if (q) { + q->next = p->next; + } else { + _nc_prescreen.allocated = p->next; + } + free(p); + break; + } } - returnCode(OK); } +#endif /* USE_PTHREADS */ + +#if NCURSES_SP_FUNCS +/* + * In case of handling multiple screens, we need to have a screen before + * initialization in _nc_setupscreen takes place. This is to extend the + * substitute for some of the stuff in _nc_prescreen, especially for slk and + * ripoff handling which should be done per screen. + */ +NCURSES_EXPORT(SCREEN *) +new_prescr(void) +{ + SCREEN *sp; + + START_TRACE(); + T((T_CALLED("new_prescr()"))); + + _nc_lock_global(screen); + if ((sp = _nc_find_prescr()) == 0) { + sp = _nc_alloc_screen_sp(); + T(("_nc_alloc_screen_sp %p", (void *) sp)); + if (sp != 0) { +#ifdef USE_PTHREADS + PRESCREEN_LIST *p = typeCalloc(PRESCREEN_LIST, 1); + if (p != 0) { + p->id = GetThreadID(); + p->sp = sp; + p->next = _nc_prescreen.allocated; + _nc_prescreen.allocated = p; + } +#else + _nc_prescreen.allocated = sp; +#endif + sp->rsp = sp->rippedoff; + sp->_filtered = _nc_prescreen.filter_mode; + sp->_use_env = _nc_prescreen.use_env; +#if NCURSES_NO_PADDING + sp->_no_padding = _nc_prescreen._no_padding; +#endif + sp->slk_format = 0; + sp->_slk = 0; + sp->_prescreen = TRUE; + SP_PRE_INIT(sp); +#if USE_REENTRANT + sp->_TABSIZE = _nc_prescreen._TABSIZE; + sp->_ESCDELAY = _nc_prescreen._ESCDELAY; +#endif + } + } else { + T(("_nc_alloc_screen_sp %p (reuse)", (void *) sp)); + } + _nc_unlock_global(screen); + returnSP(sp); +} +#endif + +#ifdef USE_TERM_DRIVER +/* + * This entrypoint is called from tgetent() to allow a special case of reusing + * the same TERMINAL data (see comment). + */ +NCURSES_EXPORT(int) +_nc_setupterm(const char *tname, + int Filedes, + int *errret, + int reuse) +{ + int rc = ERR; + TERMINAL *termp = 0; + + _nc_lock_global(prescreen); + START_TRACE(); + if (TINFO_SETUP_TERM(&termp, tname, Filedes, errret, reuse) == OK) { + _nc_forget_prescr(); + if (NCURSES_SP_NAME(set_curterm) (CURRENT_SCREEN_PRE, termp) != 0) { + rc = OK; + } + } + _nc_unlock_global(prescreen); + return rc; +} +#endif /* * setupterm(termname, Filedes, errret) @@ -647,7 +970,8 @@ _nc_setupterm(NCURSES_CONST char *tname, int Filedes, int *errret, bool reuse) * Make cur_term point to the structure. */ NCURSES_EXPORT(int) -setupterm(NCURSES_CONST char *tname, int Filedes, int *errret) +setupterm(const char *tname, int Filedes, int *errret) { + START_TRACE(); return _nc_setupterm(tname, Filedes, errret, FALSE); }