JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2008, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

@@END_COPYRIGHT@@

#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>

/* On Solaris, "sun" is defined as a macro. Undefine to make package
   declaration valid */
#undef sun

/* To be able to name the Java constants the same as the C constants without
   having the preprocessor rewrite those identifiers, add PREFIX_ to all
   identifiers matching a C constant. The PREFIX_ is filtered out in the
   makefile. */

@@START_HERE@@

package sun.nio.fs;
class UnixConstants {
    private UnixConstants() { }
    static final int PREFIX_O_RDONLY = O_RDONLY;
    static final int PREFIX_O_WRONLY = O_WRONLY;
    static final int PREFIX_O_RDWR = O_RDWR;
    static final int PREFIX_O_APPEND = O_APPEND;
    static final int PREFIX_O_CREAT = O_CREAT;
    static final int PREFIX_O_EXCL = O_EXCL;
    static final int PREFIX_O_TRUNC = O_TRUNC;
    static final int PREFIX_O_SYNC = O_SYNC;

#ifndef O_DSYNC
    // At least FreeBSD doesn't define O_DSYNC
    static final int PREFIX_O_DSYNC = O_SYNC;
#else
    static final int PREFIX_O_DSYNC = O_DSYNC;
#endif

#ifdef O_NOFOLLOW
    static final int PREFIX_O_NOFOLLOW = O_NOFOLLOW;
#else
    // not supported (dummy values will not be used at runtime).
    static final int PREFIX_O_NOFOLLOW = 00;
#endif

#ifdef O_DIRECT
    static final int PREFIX_O_DIRECT = O_DIRECT;
#else
    // not supported (dummy values will not be used at runtime).
    static final int PREFIX_O_DIRECT = 00;
#endif

    static final int PREFIX_S_IAMB =
        (S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IWOTH|S_IXOTH);
    static final int PREFIX_S_IRUSR = S_IRUSR;
    static final int PREFIX_S_IWUSR = S_IWUSR;
    static final int PREFIX_S_IXUSR = S_IXUSR;
    static final int PREFIX_S_IRGRP = S_IRGRP;
    static final int PREFIX_S_IWGRP = S_IWGRP;
    static final int PREFIX_S_IXGRP = S_IXGRP;
    static final int PREFIX_S_IROTH = S_IROTH;
    static final int PREFIX_S_IWOTH = S_IWOTH;
    static final int PREFIX_S_IXOTH = S_IXOTH;

    static final int PREFIX_S_IFMT = S_IFMT;
    static final int PREFIX_S_IFREG = S_IFREG;
    static final int PREFIX_S_IFDIR = S_IFDIR;
    static final int PREFIX_S_IFLNK = S_IFLNK;
    static final int PREFIX_S_IFCHR = S_IFCHR;
    static final int PREFIX_S_IFBLK = S_IFBLK;
    static final int PREFIX_S_IFIFO = S_IFIFO;
    static final int PREFIX_R_OK = R_OK;
    static final int PREFIX_W_OK = W_OK;
    static final int PREFIX_X_OK = X_OK;
    static final int PREFIX_F_OK = F_OK;
    static final int PREFIX_ENOENT = ENOENT;
    static final int PREFIX_ENXIO = ENXIO;
    static final int PREFIX_EACCES = EACCES;
    static final int PREFIX_EEXIST = EEXIST;
    static final int PREFIX_ENOTDIR = ENOTDIR;
    static final int PREFIX_EINVAL = EINVAL;
    static final int PREFIX_EXDEV = EXDEV;
    static final int PREFIX_EISDIR = EISDIR;
    static final int PREFIX_ENOTEMPTY = ENOTEMPTY;
    static final int PREFIX_ENOSPC = ENOSPC;
    static final int PREFIX_EAGAIN = EAGAIN;
    static final int PREFIX_EWOULDBLOCK = EWOULDBLOCK;
    static final int PREFIX_ENOSYS = ENOSYS;
    static final int PREFIX_ELOOP = ELOOP;
    static final int PREFIX_EROFS = EROFS;

#ifndef ENODATA
    // Only used in Linux java source, provide any value so it compiles
    static final int PREFIX_ENODATA = ELAST;
#else
    static final int PREFIX_ENODATA = ENODATA;

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