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 1.33 2014/03/08 20:32:59 tom Exp $")
  43
  44 #undef CUR
  45 #define CUR termp->type.
  46
  47 #if USE_REENTRANT
  48
  49 NCURSES_EXPORT(TERMINAL *)
  50 NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_DCL0)
  51 {
  52     return ((0 != TerminalOf(SP_PARM)) ? TerminalOf(SP_PARM) : CurTerm);
  53 }
  54
  55 #if NCURSES_SP_FUNCS
  56
  57 NCURSES_EXPORT(TERMINAL *)
  58 _nc_get_cur_term(void)
  59 {
  60     return NCURSES_SP_NAME(_nc_get_cur_term) (CURRENT_SCREEN);
  61 }
  62 #endif
  63
  64 NCURSES_EXPORT(TERMINAL *)
  65 NCURSES_PUBLIC_VAR(cur_term) (void)
  66 {
  67 #if NCURSES_SP_FUNCS
  68     return NCURSES_SP_NAME(_nc_get_cur_term) (CURRENT_SCREEN);
  69 #else
  70     return NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_ARG);
  71 #endif
  72 }
  73
  74 #else
  75 NCURSES_EXPORT_VAR(TERMINAL *) cur_term = 0;
  76 #endif
  77
  78 NCURSES_EXPORT(TERMINAL *)
  79 NCURSES_SP_NAME(set_curterm) (NCURSES_SP_DCLx TERMINAL * termp)
  80 {
  81     TERMINAL *oldterm;
  82
  83     T((T_CALLED("set_curterm(%p)"), (void *) termp));
  84
  85     _nc_lock_global(curses);
  86     oldterm = cur_term;
  87     if (SP_PARM)
  88         SP_PARM->_term = termp;
  89 #if USE_REENTRANT
  90     CurTerm = termp;
  91 #else
  92     cur_term = termp;
  93 #endif
  94     if (termp != 0) {
  95 #ifdef USE_TERM_DRIVER
  96         TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) termp;
  97         ospeed = (NCURSES_OSPEED) _nc_ospeed(termp->_baudrate);
  98         if (TCB->drv->isTerminfo && termp->type.Strings) {
  99             PC = (char) ((pad_char != NULL) ? pad_char[0] : 0);
 100         }
 101         TCB->csp = SP_PARM;
 102 #else
 103         ospeed = (NCURSES_OSPEED) _nc_ospeed(termp->_baudrate);
 104         if (termp->type.Strings) {
 105             PC = (char) ((pad_char != NULL) ? pad_char[0] : 0);
 106         }
 107 #endif
 108     }
 109     _nc_unlock_global(curses);
 110
 111     T((T_RETURN("%p"), (void *) oldterm));
 112     return (oldterm);
 113 }
 114
 115 #if NCURSES_SP_FUNCS
 116 NCURSES_EXPORT(TERMINAL *)
 117 set_curterm(TERMINAL * termp)
 118 {
 119     return NCURSES_SP_NAME(set_curterm) (CURRENT_SCREEN, termp);
 120 }
 121 #endif
 122
 123 NCURSES_EXPORT(int)
 124 NCURSES_SP_NAME(del_curterm) (NCURSES_SP_DCLx TERMINAL * termp)
 125 {
 126     int rc = ERR;
 127
 128     T((T_CALLED("del_curterm(%p, %p)"), (void *) SP_PARM, (void *) termp));
 129
 130     if (termp != 0) {
 131 #ifdef USE_TERM_DRIVER
 132         TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) termp;
 133 #endif
 134         TERMINAL *cur = (
 135 #if USE_REENTRANT
 136                             NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_ARG)
 137 #else
 138                             cur_term
 139 #endif
 140         );
 141
 142         _nc_free_termtype(&(termp->type));
 143         if (termp == cur)
 144             NCURSES_SP_NAME(set_curterm) (NCURSES_SP_ARGx 0);
 145
 146         FreeIfNeeded(termp->_termname);
 147 #if USE_HOME_TERMINFO
 148         if (_nc_globals.home_terminfo != 0) {
 149             FreeAndNull(_nc_globals.home_terminfo);
 150         }
 151 #endif
 152 #ifdef USE_TERM_DRIVER
 153         if (TCB->drv)
 154             TCB->drv->td_release(TCB);
 155 #endif
 156         free(termp);
 157
 158         rc = OK;
 159     }
 160     returnCode(rc);
 161 }
 162
 163 #if NCURSES_SP_FUNCS
 164 NCURSES_EXPORT(int)
 165 del_curterm(TERMINAL * termp)
 166 {
 167     int rc = ERR;
 168
 169     _nc_lock_global(curses);
 170     rc = NCURSES_SP_NAME(del_curterm) (CURRENT_SCREEN, termp);
 171     _nc_unlock_global(curses);
 172
 173     return (rc);
 174 }
 175 #endif