/* Implement runtime actions for CHILL. Copyright (C) 1992,1993 Free Software Foundation, Inc. Author: Wilfried Moser This file is part of GNU CC. GNU CC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU CC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU CC; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* As a special exception, if you link this library with other files, some of which are compiled with GCC, to produce an executable, this library does not by itself cause the resulting executable to be covered by the GNU General Public License. This exception does not however invalidate any other reasons why the executable file might be covered by the GNU General Public License. */ #include <stdio.h> #include <stdlib.h> #include <errno.h> #include <string.h> #include "iomodes.h" /* predefined associations, accesses, and text for stdin, stdout, stderr */ /* stdin */ #define STDIO_TEXT_LENGTH 1024 #define STDIN_TEXT_LENGTH STDIO_TEXT_LENGTH static Access_Mode stdin_access; #ifndef STDIN_FILENO #define STDIN_FILENO 0 #endif static Association_Mode stdin_association = { IO_EXISTING | IO_READABLE | IO_SEQUENCIBLE | IO_ISASSOCIATED, NULL, &stdin_access, STDIN_FILENO, NULL, 0, ReadOnly }; static Access_Mode stdin_access = { IO_TEXTIO, STDIN_TEXT_LENGTH + 2, 0, 0, &stdin_association, 0, NULL, VaryingChars }; static VARYING_STRING(STDIN_TEXT_LENGTH) stdin_text_record; Text_Mode chill_stdin = { IO_TEXTLOCATION, (VarString *)&stdin_text_record, &stdin_access, 0 }; /* stdout */ #define STDOUT_TEXT_LENGTH STDIO_TEXT_LENGTH #ifndef STDOUT_FILENO #define STDOUT_FILENO 1 #endif static Access_Mode stdout_access; static Association_Mode stdout_association = { IO_EXISTING | IO_WRITEABLE | IO_SEQUENCIBLE | IO_ISASSOCIATED, NULL, &stdout_access, STDOUT_FILENO, NULL, 0, WriteOnly }; static Access_Mode stdout_access = { IO_TEXTIO, STDOUT_TEXT_LENGTH + 2, 0, 0, &stdout_association, 0, NULL, VaryingChars }; static VARYING_STRING(STDOUT_TEXT_LENGTH) stdout_text_record; Text_Mode chill_stdout = { IO_TEXTLOCATION, (VarString *)&stdout_text_record, &stdout_access, 0 }; /* stderr */ #define STDERR_TEXT_LENGTH STDIO_TEXT_LENGTH #ifndef STDERR_FILENO #define STDERR_FILENO 2 #endif static Access_Mode stderr_access; static Association_Mode stderr_association = { IO_EXISTING | IO_WRITEABLE | IO_SEQUENCIBLE | IO_ISASSOCIATED, NULL, &stderr_access, STDERR_FILENO, NULL, 0, WriteOnly }; static Access_Mode stderr_access = { IO_TEXTIO, STDERR_TEXT_LENGTH + 2, 0, 0, &stderr_association, 0, NULL, VaryingChars }; static VARYING_STRING(STDIN_TEXT_LENGTH) stderr_text_record; Text_Mode chill_stderr = { IO_TEXTLOCATION, (VarString *)&stderr_text_record, &stderr_access, 0 }; /* * function __xmalloc_ * * parameter: * size number of bytes to allocate * * returns: * void* * * abstract: * This is the general allocation routine for libchill * */ void * __xmalloc_ (size) int size; { void *tmp = malloc (size); if (!tmp) { fprintf (stderr, "ChillLib: Out of heap space.\n"); fflush (stderr); exit (ENOMEM); } return (tmp); } /* __xmalloc_ */ static char * newstring (char *str) { char *tmp = __xmalloc_ (strlen (str) + 1); strcpy (tmp, str); return tmp; } static void setup_stdinout (void) __attribute__((constructor)); static void setup_stdinout () { /* allocate the names */ stdin_association.pathname = newstring ("stdin"); stdout_association.pathname = newstring ("stdout"); stderr_association.pathname = newstring ("stderr"); /* stdin needs a readbuffer */ stdin_association.bufptr = __xmalloc_ (sizeof (readbuf_t)); memset (stdin_association.bufptr, 0, sizeof (readbuf_t)); }