--- a/jdk/src/windows/native/sun/nio/ch/FileDispatcher.c Wed Feb 11 13:16:53 2009 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,319 +0,0 @@
-/*
- * Copyright 2000-2003 Sun Microsystems, Inc. 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. Sun designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- */
-
-#include <windows.h>
-#include "jni.h"
-#include "jni_util.h"
-#include "jvm.h"
-#include "jlong.h"
-#include "sun_nio_ch_FileDispatcher.h"
-#include <io.h>
-#include "nio.h"
-#include "nio_util.h"
-
-
-/**************************************************************
- * FileDispatcher.c
- */
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_FileDispatcher_read0(JNIEnv *env, jclass clazz, jobject fdo,
- jlong address, jint len)
-{
- DWORD read = 0;
- BOOL result = 0;
- HANDLE h = (HANDLE)(handleval(env, fdo));
-
- if (h == INVALID_HANDLE_VALUE) {
- JNU_ThrowIOExceptionWithLastError(env, "Invalid handle");
- return IOS_THROWN;
- }
- result = ReadFile(h, /* File handle to read */
- (LPVOID)address, /* address to put data */
- len, /* number of bytes to read */
- &read, /* number of bytes read */
- NULL); /* no overlapped struct */
- if (result == 0) {
- int error = GetLastError();
- if (error == ERROR_BROKEN_PIPE) {
- return IOS_EOF;
- }
- if (error == ERROR_NO_DATA) {
- return IOS_UNAVAILABLE;
- }
- JNU_ThrowIOExceptionWithLastError(env, "Read failed");
- return IOS_THROWN;
- }
- return convertReturnVal(env, (jint)read, JNI_TRUE);
-}
-
-JNIEXPORT jlong JNICALL
-Java_sun_nio_ch_FileDispatcher_readv0(JNIEnv *env, jclass clazz, jobject fdo,
- jlong address, jint len)
-{
- DWORD read = 0;
- BOOL result = 0;
- jlong totalRead = 0;
- LPVOID loc;
- int i = 0;
- DWORD num = 0;
- struct iovec *iovecp = (struct iovec *)jlong_to_ptr(address);
- HANDLE h = (HANDLE)(handleval(env, fdo));
-
- if (h == INVALID_HANDLE_VALUE) {
- JNU_ThrowIOExceptionWithLastError(env, "Invalid handle");
- return IOS_THROWN;
- }
-
- for(i=0; i<len; i++) {
- loc = (LPVOID)jlong_to_ptr(iovecp[i].iov_base);
- num = iovecp[i].iov_len;
- result = ReadFile(h, /* File handle to read */
- loc, /* address to put data */
- num, /* number of bytes to read */
- &read, /* number of bytes read */
- NULL); /* no overlapped struct */
- if (read > 0) {
- totalRead += read;
- }
- if (read < num) {
- break;
- }
- }
-
- if (result == 0) {
- int error = GetLastError();
- if (error == ERROR_BROKEN_PIPE) {
- return IOS_EOF;
- }
- if (error == ERROR_NO_DATA) {
- return IOS_UNAVAILABLE;
- }
- JNU_ThrowIOExceptionWithLastError(env, "Read failed");
- return IOS_THROWN;
- }
-
- return convertLongReturnVal(env, totalRead, JNI_TRUE);
-}
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_FileDispatcher_pread0(JNIEnv *env, jclass clazz, jobject fdo,
- jlong address, jint len, jlong offset)
-{
- DWORD read = 0;
- BOOL result = 0;
- HANDLE h = (HANDLE)(handleval(env, fdo));
- DWORD lowPos = 0;
- long highPos = 0;
- DWORD lowOffset = 0;
- long highOffset = 0;
-
- if (h == INVALID_HANDLE_VALUE) {
- JNU_ThrowIOExceptionWithLastError(env, "Invalid handle");
- return IOS_THROWN;
- }
-
- lowPos = SetFilePointer(h, 0, &highPos, FILE_CURRENT);
- if (lowPos == ((DWORD)-1)) {
- if (GetLastError() != ERROR_SUCCESS) {
- JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
- return IOS_THROWN;
- }
- }
-
- lowOffset = (DWORD)offset;
- highOffset = (DWORD)(offset >> 32);
- lowOffset = SetFilePointer(h, lowOffset, &highOffset, FILE_BEGIN);
- if (lowOffset == ((DWORD)-1)) {
- if (GetLastError() != ERROR_SUCCESS) {
- JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
- return IOS_THROWN;
- }
- }
-
- result = ReadFile(h, /* File handle to read */
- (LPVOID)address, /* address to put data */
- len, /* number of bytes to read */
- &read, /* number of bytes read */
- NULL); /* struct with offset */
-
- if (result == 0) {
- int error = GetLastError();
- if (error == ERROR_BROKEN_PIPE) {
- return IOS_EOF;
- }
- if (error == ERROR_NO_DATA) {
- return IOS_UNAVAILABLE;
- }
- JNU_ThrowIOExceptionWithLastError(env, "Read failed");
- return IOS_THROWN;
- }
-
- lowPos = SetFilePointer(h, lowPos, &highPos, FILE_BEGIN);
- if (lowPos == ((DWORD)-1)) {
- if (GetLastError() != ERROR_SUCCESS) {
- JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
- return IOS_THROWN;
- }
- }
- return convertReturnVal(env, (jint)read, JNI_TRUE);
-}
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_FileDispatcher_write0(JNIEnv *env, jclass clazz, jobject fdo,
- jlong address, jint len)
-{
- BOOL result = 0;
- DWORD written = 0;
- HANDLE h = (HANDLE)(handleval(env, fdo));
-
- if (h != INVALID_HANDLE_VALUE) {
- result = WriteFile(h, /* File handle to write */
- (LPCVOID)address, /* pointers to the buffers */
- len, /* number of bytes to write */
- &written, /* receives number of bytes written */
- NULL); /* no overlapped struct */
- }
-
- if ((h == INVALID_HANDLE_VALUE) || (result == 0)) {
- JNU_ThrowIOExceptionWithLastError(env, "Write failed");
- }
-
- return convertReturnVal(env, (jint)written, JNI_FALSE);
-}
-
-JNIEXPORT jlong JNICALL
-Java_sun_nio_ch_FileDispatcher_writev0(JNIEnv *env, jclass clazz, jobject fdo,
- jlong address, jint len)
-{
- BOOL result = 0;
- DWORD written = 0;
- HANDLE h = (HANDLE)(handleval(env, fdo));
- jlong totalWritten = 0;
-
- if (h != INVALID_HANDLE_VALUE) {
- LPVOID loc;
- int i = 0;
- DWORD num = 0;
- struct iovec *iovecp = (struct iovec *)jlong_to_ptr(address);
-
- for(i=0; i<len; i++) {
- loc = (LPVOID)jlong_to_ptr(iovecp[i].iov_base);
- num = iovecp[i].iov_len;
- result = WriteFile(h, /* File handle to write */
- loc, /* pointers to the buffers */
- num, /* number of bytes to write */
- &written,/* receives number of bytes written */
- NULL); /* no overlapped struct */
- if (written > 0) {
- totalWritten += written;
- }
- if (written < num) {
- break;
- }
- }
- }
-
- if ((h == INVALID_HANDLE_VALUE) || (result == 0)) {
- JNU_ThrowIOExceptionWithLastError(env, "Write failed");
- }
-
- return convertLongReturnVal(env, totalWritten, JNI_FALSE);
-}
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_FileDispatcher_pwrite0(JNIEnv *env, jclass clazz, jobject fdo,
- jlong address, jint len, jlong offset)
-{
- BOOL result = 0;
- DWORD written = 0;
- HANDLE h = (HANDLE)(handleval(env, fdo));
- DWORD lowPos = 0;
- long highPos = 0;
- DWORD lowOffset = 0;
- long highOffset = 0;
-
- lowPos = SetFilePointer(h, 0, &highPos, FILE_CURRENT);
- if (lowPos == ((DWORD)-1)) {
- if (GetLastError() != ERROR_SUCCESS) {
- JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
- return IOS_THROWN;
- }
- }
-
- lowOffset = (DWORD)offset;
- highOffset = (DWORD)(offset >> 32);
- lowOffset = SetFilePointer(h, lowOffset, &highOffset, FILE_BEGIN);
- if (lowOffset == ((DWORD)-1)) {
- if (GetLastError() != ERROR_SUCCESS) {
- JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
- return IOS_THROWN;
- }
- }
-
- result = WriteFile(h, /* File handle to write */
- (LPCVOID)address, /* pointers to the buffers */
- len, /* number of bytes to write */
- &written, /* receives number of bytes written */
- NULL); /* no overlapped struct */
-
- if ((h == INVALID_HANDLE_VALUE) || (result == 0)) {
- JNU_ThrowIOExceptionWithLastError(env, "Write failed");
- return IOS_THROWN;
- }
-
- lowPos = SetFilePointer(h, lowPos, &highPos, FILE_BEGIN);
- if (lowPos == ((DWORD)-1)) {
- if (GetLastError() != ERROR_SUCCESS) {
- JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
- return IOS_THROWN;
- }
- }
-
- return convertReturnVal(env, (jint)written, JNI_FALSE);
-}
-
-static void closeFile(JNIEnv *env, jlong fd) {
- HANDLE h = (HANDLE)fd;
- if (h != INVALID_HANDLE_VALUE) {
- int result = CloseHandle(h);
- if (result < 0)
- JNU_ThrowIOExceptionWithLastError(env, "Close failed");
- }
-}
-
-JNIEXPORT void JNICALL
-Java_sun_nio_ch_FileDispatcher_close0(JNIEnv *env, jclass clazz, jobject fdo)
-{
- jlong fd = handleval(env, fdo);
- closeFile(env, fd);
-}
-
-JNIEXPORT void JNICALL
-Java_sun_nio_ch_FileDispatcher_closeByHandle(JNIEnv *env, jclass clazz,
- jlong fd)
-{
- closeFile(env, fd);
-}