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- version39-41:1.1;
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- comment @ * @;
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- 1.1
- date 92.05.14.19.55.40; author mwild; state Exp;
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- desc
- @old pipe(2) implementation using __pipe() with BPTRs
- @
-
-
- 1.1
- log
- @Initial revision
- @
- text
- @/*
- * This file is part of ixemul.library for the Amiga.
- * Copyright (C) 1991, 1992 Markus M. Wild
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id$
- *
- * $Log$
- */
-
- #define KERNEL
- #include "ixemul.h"
-
- extern int __read(), __write(), __ioctl(), __fselect(), __close();
-
- int
- pipe (int pv[2])
- {
- BPTR bpv[2];
- struct file *f1, *f2;
- int res, err, omask;
-
- omask = syscall (SYS_sigsetmask, ~0);
- res = -1;
- err = EMFILE;
- if (__pipe (bpv))
- {
- if (! falloc (&f1, pv))
- {
- if (! falloc (&f2, pv+1))
- {
- f1->f_fh = BTOCPTR (bpv[0]);
- __init_std_packet (& f1->f_sp);
- __fstat (f1);
- f1->f_flags = FREAD;
- f1->f_type = DTYPE_FILE;
- f1->f_read = __read;
- f1->f_write = 0;
- f1->f_ioctl = __ioctl;
- f1->f_close = __close;
- f1->f_select = __fselect;
-
- f2->f_fh = BTOCPTR (bpv[1]);
- __init_std_packet (& f2->f_sp);
- __fstat (f2);
- f2->f_flags = FWRITE;
- f2->f_type = DTYPE_FILE;
- f2->f_read = 0;
- f2->f_write = __write;
- f2->f_ioctl = __ioctl;
- f2->f_close = __close;
- f2->f_select = __fselect;
-
- res = err =0;
- goto ret;
- }
- f1->f_count = 0;
- }
- __Close (bpv[0]);
- __Close (bpv[1]);
- }
-
- ret:
- syscall (SYS_sigsetmask, omask);
-
- errno = err;
- return res;
- }
- @
-