+++ /dev/null
-// natFileDescriptorWin32.cc - Native part of FileDescriptor class.
-
-/* Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
-
- This file is part of libgcj.
-
-This software is copyrighted work licensed under the terms of the
-Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
-details. */
-
-// FIXME: In order to support interrupting of IO operations, we
-// need to change to use the windows asynchronous IO functions
-
-#include <config.h>
-
-#include <stdio.h>
-#include <string.h>
-
-#include <windows.h>
-#undef STRICT
-
-#include <gcj/cni.h>
-#include <jvm.h>
-#include <java/io/FileDescriptor.h>
-#include <java/io/SyncFailedException.h>
-#include <java/io/IOException.h>
-#include <java/io/InterruptedIOException.h>
-#include <java/io/EOFException.h>
-#include <java/lang/ArrayIndexOutOfBoundsException.h>
-#include <java/lang/NullPointerException.h>
-#include <java/lang/String.h>
-#include <java/lang/Thread.h>
-#include <java/io/FileNotFoundException.h>
-
-void
-java::io::FileDescriptor::init(void)
-{
- in = new java::io::FileDescriptor((jint)(GetStdHandle (STD_INPUT_HANDLE)));
- out = new java::io::FileDescriptor((jint)(GetStdHandle (STD_OUTPUT_HANDLE)));
- err = new java::io::FileDescriptor((jint)(GetStdHandle (STD_ERROR_HANDLE)));
-}
-
-static char *
-winerr (void)
-{
- static LPVOID last = NULL;
- LPVOID old = NULL;
-
- if (last)
- old = last;
-
- FormatMessage (FORMAT_MESSAGE_ALLOCATE_BUFFER |
- FORMAT_MESSAGE_FROM_SYSTEM |
- FORMAT_MESSAGE_IGNORE_INSERTS,
- NULL,
- GetLastError(),
- MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
- (LPTSTR) &last,
- 0,
- NULL);
-
- if (old)
- LocalFree (old);
-
- return (char *)last;
-}
-
-jboolean
-java::io::FileDescriptor::valid (void) {
- BY_HANDLE_FILE_INFORMATION info;
- return GetFileInformationByHandle ((HANDLE)fd, &info) != 0;
-}
-
-void
-java::io::FileDescriptor::sync (void) {
- if (! FlushFileBuffers ((HANDLE)fd))
- throw new SyncFailedException (JvNewStringLatin1 (winerr ()));
-}
-
-jint
-java::io::FileDescriptor::open (jstring path, jint jflags) {
-
- HANDLE handle = NULL;
- DWORD access = 0;
- DWORD create = OPEN_EXISTING;
- char buf[MAX_PATH] = "";
-
- jsize total = JvGetStringUTFRegion(path, 0, path->length(), buf);
- buf[total] = '\0';
-
- JvAssert((jflags & READ) || (jflags & WRITE));
-
- if ((jflags & READ) && (jflags & WRITE))
- {
- access = GENERIC_READ | GENERIC_WRITE;
- if (jflags & APPEND)
- create = OPEN_ALWAYS;
- else
- create = CREATE_ALWAYS;
- }
- else if(jflags & READ)
- access = GENERIC_READ;
- else
- {
- access = GENERIC_WRITE;
- if (jflags & APPEND)
- create = OPEN_ALWAYS;
- else
- create = CREATE_ALWAYS;
- }
-
- handle = CreateFile(buf, access, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, create, 0, NULL);
-
- if (handle == INVALID_HANDLE_VALUE)
- {
- char msg[MAX_PATH + 1000];
- sprintf (msg, "%s: %s", buf, winerr ());
- throw new FileNotFoundException (JvNewStringLatin1 (msg));
- }
-
- return (jint)handle;
-}
-
-void
-java::io::FileDescriptor::write (jint b)
-{
- DWORD bytesWritten;
- jbyte buf = (jbyte)b;
-
- if (WriteFile ((HANDLE)fd, &buf, 1, &bytesWritten, NULL))
- {
- if (java::lang::Thread::interrupted())
- {
- InterruptedIOException *iioe = new InterruptedIOException (JvNewStringLatin1 ("write interrupted"));
- iioe->bytesTransferred = bytesWritten;
- throw iioe;
- }
- if (bytesWritten != 1)
- throw new IOException (JvNewStringLatin1 (winerr ()));
- }
- else
- throw new IOException (JvNewStringLatin1 (winerr ()));
- // FIXME: loop until bytesWritten == 1
-}
-
-void
-java::io::FileDescriptor::write(jbyteArray b, jint offset, jint len)
-{
- if (! b)
- throw new java::lang::NullPointerException;
- if(offset < 0 || len < 0 || offset + len > JvGetArrayLength (b))
- throw new java::lang::ArrayIndexOutOfBoundsException;
-
- jbyte *buf = elements (b) + offset;
- DWORD bytesWritten;
- if (WriteFile ((HANDLE)fd, buf, len, &bytesWritten, NULL))
- {
- if (java::lang::Thread::interrupted())
- {
- InterruptedIOException *iioe = new InterruptedIOException (JvNewStringLatin1 ("write interrupted"));
- iioe->bytesTransferred = bytesWritten;
- throw iioe;
- }
- }
- else
- throw new IOException (JvNewStringLatin1 (winerr ()));
- // FIXME: loop until bytesWritten == len
-}
-
-void
-java::io::FileDescriptor::close (void)
-{
- HANDLE save = (HANDLE)fd;
- fd = (jint)INVALID_HANDLE_VALUE;
- if (! CloseHandle (save))
- throw new IOException (JvNewStringLatin1 (winerr ()));
-}
-
-jint
-java::io::FileDescriptor::seek (jlong pos, jint whence, jboolean eof_trunc)
-{
- JvAssert (whence == SET || whence == CUR);
-
- jlong len = length();
- jlong here = getFilePointer();
-
- if (eof_trunc
- && ((whence == SET && pos > len) || (whence == CUR && here + pos > len)))
- {
- whence = SET;
- pos = len;
- }
-
- LONG high = pos >> 32;
- DWORD low = SetFilePointer ((HANDLE)fd, (DWORD)(0xffffffff & pos), &high, whence == SET ? FILE_BEGIN : FILE_CURRENT);
- if ((low == 0xffffffff) && (GetLastError () != NO_ERROR))
- throw new IOException (JvNewStringLatin1 (winerr ()));
- return low;
-}
-
-jlong
-java::io::FileDescriptor::getFilePointer(void)
-{
- LONG high = 0;
- DWORD low = SetFilePointer ((HANDLE)fd, 0, &high, FILE_CURRENT);
- if ((low == 0xffffffff) && (GetLastError() != NO_ERROR))
- throw new IOException (JvNewStringLatin1 (winerr ()));
- return (((jlong)high) << 32L) | (jlong)low;
-}
-
-jlong
-java::io::FileDescriptor::length(void)
-{
- DWORD high;
- DWORD low;
-
- low = GetFileSize ((HANDLE)fd, &high);
- // FIXME: Error checking
- return (((jlong)high) << 32L) | (jlong)low;
-}
-
-jint
-java::io::FileDescriptor::read(void)
-{
- CHAR buf;
- DWORD read;
-
- if (! ReadFile ((HANDLE)fd, &buf, 1, &read, NULL))
- throw new IOException (JvNewStringLatin1 (winerr ()));
- if (! read)
- return -1;
- else
- return (jint)(buf & 0xff);
-}
-
-jint
-java::io::FileDescriptor::read(jbyteArray buffer, jint offset, jint count)
-{
- if (! buffer)
- throw new java::lang::NullPointerException;
-
- jsize bsize = JvGetArrayLength (buffer);
- if (offset < 0 || count < 0 || offset + count > bsize)
- throw new java::lang::ArrayIndexOutOfBoundsException;
-
- jbyte *bytes = elements (buffer) + offset;
-
- DWORD read;
- if (! ReadFile((HANDLE)fd, bytes, count, &read, NULL))
- throw new IOException (JvNewStringLatin1 (winerr ()));
-
- if (read == 0) return -1;
- return (jint)read;
-}
-
-jint
-java::io::FileDescriptor::available(void)
-{
- // FIXME:
- return length() - getFilePointer();
-}
projects / msp430-gcc.git / blobdiff