release/src/router/libncurses/ncurses/tinfo/lib_cur_term.c

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  28
  29 /****************************************************************************
  30  *  Author: Thomas E. Dickey <dickey@clark.net> 1997                        *
  31  ****************************************************************************/
  32 /*
  33  * Module that "owns" the 'cur_term' variable:
  34  *
  35  *      TERMINAL *set_curterm(TERMINAL *)
  36  *      int del_curterm(TERMINAL *)
  37  */
  38
  39 #include <curses.priv.h>
  40 #include <termcap.h>            /* ospeed */
  41
  42 MODULE_ID("$Id: lib_cur_term.c,v 1.30 2010/12/19 01:38:45 tom Exp $")
  43
  44 #undef CUR
  45 #define CUR termp->type.
  46
  47 #if BROKEN_LINKER && !USE_REENTRANT
  48 NCURSES_EXPORT_VAR(TERMINAL *) cur_term = 0;
  49 #elif BROKEN_LINKER || USE_REENTRANT
  50
  51 NCURSES_EXPORT(TERMINAL *)
  52 NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_DCL0)
  53 {
  54     return ((0 != TerminalOf(SP_PARM)) ? TerminalOf(SP_PARM) : CurTerm);
  55 }
  56
  57 #if NCURSES_SP_FUNCS
  58 NCURSES_EXPORT(TERMINAL *)
  59 _nc_get_cur_term(void)
  60 {
  61     return NCURSES_SP_NAME(_nc_get_cur_term) (CURRENT_SCREEN);
  62 }
  63 #endif
  64
  65 NCURSES_EXPORT(TERMINAL *)
  66 NCURSES_PUBLIC_VAR(cur_term) (void)
  67 {
  68 #if NCURSES_SP_FUNCS
  69     return NCURSES_SP_NAME(_nc_get_cur_term) (CURRENT_SCREEN);
  70 #else
  71     return NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_ARG);
  72 #endif
  73 }
  74
  75 #else
  76 NCURSES_EXPORT_VAR(TERMINAL *) cur_term = 0;
  77 #endif
  78
  79 NCURSES_EXPORT(TERMINAL *)
  80 NCURSES_SP_NAME(set_curterm) (NCURSES_SP_DCLx TERMINAL * termp)
  81 {
  82     TERMINAL *oldterm;
  83
  84     T((T_CALLED("set_curterm(%p)"), (void *) termp));
  85
  86     _nc_lock_global(curses);
  87     oldterm = cur_term;
  88     if (SP_PARM)
  89         SP_PARM->_term = termp;
  90 #if BROKEN_LINKER && !USE_REENTRANT
  91     cur_term = termp;
  92 #else
  93     CurTerm = termp;
  94 #endif
  95     if (termp != 0) {
  96 #ifdef USE_TERM_DRIVER
  97         TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) termp;
  98         ospeed = (NCURSES_OSPEED) _nc_ospeed(termp->_baudrate);
  99         if (TCB->drv->isTerminfo && termp->type.Strings) {
 100             PC = (char) ((pad_char != NULL) ? pad_char[0] : 0);
 101         }
 102         TCB->csp = SP_PARM;
 103 #else
 104         ospeed = (NCURSES_OSPEED) _nc_ospeed(termp->_baudrate);
 105         if (termp->type.Strings) {
 106             PC = (char) ((pad_char != NULL) ? pad_char[0] : 0);
 107         }
 108 #endif
 109     }
 110     _nc_unlock_global(curses);
 111
 112     T((T_RETURN("%p"), (void *) oldterm));
 113     return (oldterm);
 114 }
 115
 116 #if NCURSES_SP_FUNCS
 117 NCURSES_EXPORT(TERMINAL *)
 118 set_curterm(TERMINAL * termp)
 119 {
 120     return NCURSES_SP_NAME(set_curterm) (CURRENT_SCREEN, termp);
 121 }
 122 #endif
 123
 124 NCURSES_EXPORT(int)
 125 NCURSES_SP_NAME(del_curterm) (NCURSES_SP_DCLx TERMINAL * termp)
 126 {
 127     int rc = ERR;
 128
 129     T((T_CALLED("del_curterm(%p, %p)"), (void *) SP_PARM, (void *) termp));
 130
 131     if (termp != 0) {
 132 #ifdef USE_TERM_DRIVER
 133         TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) termp;
 134 #endif
 135         TERMINAL *cur = (
 136 #if BROKEN_LINKER && !USE_REENTRANT
 137                             cur_term
 138 #elif BROKEN_LINKER || USE_REENTRANT
 139                             NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_ARG)
 140 #else
 141                             cur_term
 142 #endif
 143         );
 144
 145         _nc_free_termtype(&(termp->type));
 146         if (termp == cur)
 147             NCURSES_SP_NAME(set_curterm) (NCURSES_SP_ARGx 0);
 148
 149         FreeIfNeeded(termp->_termname);
 150 #if USE_HOME_TERMINFO
 151         if (_nc_globals.home_terminfo != 0)
 152             FreeAndNull(_nc_globals.home_terminfo);
 153 #endif
 154 #ifdef USE_TERM_DRIVER
 155         if (TCB->drv)
 156             TCB->drv->release(TCB);
 157 #endif
 158         free(termp);
 159
 160         rc = OK;
 161     }
 162     returnCode(rc);
 163 }
 164
 165 #if NCURSES_SP_FUNCS
 166 NCURSES_EXPORT(int)
 167 del_curterm(TERMINAL * termp)
 168 {
 169     int rc = ERR;
 170
 171     _nc_lock_global(curses);
 172     rc = NCURSES_SP_NAME(del_curterm) (CURRENT_SCREEN, termp);
 173     _nc_unlock_global(curses);
 174
 175     return (rc);
 176 }
 177 #endif