1 /*- 2 * Copyright (c) 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * Copyright (c) 1992, 1993, 1994, 1995, 1996 5 * Keith Bostic. All rights reserved. 6 * 7 * See the LICENSE file for redistribution information. 8 */ 9 10 #include "config.h" 11 12 #include <sys/types.h> 13 #include <sys/queue.h> 14 #include <sys/time.h> 15 16 #include <bitstring.h> 17 #include <errno.h> 18 #include <limits.h> 19 #include <stdio.h> 20 #include <string.h> 21 #include <unistd.h> 22 23 #include "../common/common.h" 24 25 /* 26 * ex_stop -- :stop[!] 27 * :suspend[!] 28 * Suspend execution. 29 * 30 * PUBLIC: int ex_stop(SCR *, EXCMD *); 31 */ 32 int 33 ex_stop(SCR *sp, EXCMD *cmdp) 34 { 35 int allowed; 36 37 /* For some strange reason, the force flag turns off autowrite. */ 38 if (!FL_ISSET(cmdp->iflags, E_C_FORCE) && file_aw(sp, FS_ALL)) 39 return (1); 40 41 if (sp->gp->scr_suspend(sp, &allowed)) 42 return (1); 43 if (!allowed) 44 ex_emsg(sp, NULL, EXM_NOSUSPEND); 45 return (0); 46 } 47