| /* | |
| * Copyright (c) 2003, 2024, 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. | |
| */ | |
| #include "jni_util.h" | |
| /* | |
| * Macros to use the right data type for file descriptors | |
| */ | |
| #define FD jint | |
| /* | |
| * Prototypes for functions in io_util_md.c called from io_util.c, | |
| * FileDescriptor.c, FileInputStream.c, FileOutputStream.c, | |
| * UnixFileSystem_md.c | |
| */ | |
| ssize_t handleWrite(FD fd, const void *buf, jint len); | |
| ssize_t handleRead(FD fd, void *buf, jint len); | |
| jint handleAvailable(FD fd, jlong *pbytes); | |
| jint handleSetLength(FD fd, jlong length); | |
| jlong handleGetLength(FD fd); | |
| FD handleOpen(const char *path, int oflag, int mode); | |
| jboolean handleIsRegularFile(JNIEnv* env, FD fd); | |
| /* | |
| * Functions to get fd from the java.io.FileDescriptor field | |
| * of an object. These functions rely on having an appropriately | |
| * defined object with a FileDescriptor object at the fid offset. | |
| * If the FD object is null, return -1 to avoid crashing VM. | |
| */ | |
| FD getFD(JNIEnv *env, jobject cur, jfieldID fid); | |
| /* | |
| * Macros to set/get fd when inside java.io.FileDescriptor | |
| */ | |
| #define THIS_FD(obj) (*env)->GetIntField(env, obj, IO_fd_fdID) | |
| /* | |
| * Route the routines | |
| */ | |
| #define IO_Sync fsync | |
| #define IO_Lseek lseek | |
| #define IO_Read handleRead | |
| #define IO_Write handleWrite | |
| #define IO_Append handleWrite | |
| #define IO_Available handleAvailable | |
| #define IO_SetLength handleSetLength | |
| #define IO_GetLength handleGetLength | |
| #define IO_IsRegularFile handleIsRegularFile | |
| /* | |
| * On Solaris, the handle field is unused | |
| */ | |
| #define SET_HANDLE(fd) return (jlong)-1 | |
| void fileDescriptorClose(JNIEnv *env, jobject this); | |
| #ifdef MACOSX | |
| jstring newStringPlatform(JNIEnv *env, const char* str); | |
| #endif |