All Downloads are FREE. Search and download functionalities are using the official Maven repository.

jtermios.windows.WinAPI Maven / Gradle / Ivy

Go to download

FiloFirmata is a client library for the Firmata protocol used with hardware project boards.

There is a newer version: 0.1.11
Show newest version
/*
 * Copyright (c) 2011, Kustaa Nyholm / SpareTimeLabs
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, 
 * are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this list 
 * of conditions and the following disclaimer.
 * 
 * Redistributions in binary form must reproduce the above copyright notice, this 
 * list of conditions and the following disclaimer in the documentation and/or other
 * materials provided with the distribution.
 *  
 * Neither the name of the Kustaa Nyholm or SpareTimeLabs nor the names of its 
 * contributors may be used to endorse or promote products derived from this software 
 * without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 */

package jtermios.windows;

import java.util.Arrays;
import java.util.List;

import com.sun.jna.*;
import com.sun.jna.ptr.IntByReference;
import com.sun.jna.win32.StdCallLibrary;

import static jtermios.JTermios.JTermiosLogging.*;

/**
 * This WinAPI class implements a simple wrapper API to access the Windows COM
 * ports from Java.
 * 
 * The purpose is to follow reasonably closely the WIN32 API so that COM port
 * related C-code can be ported to Java almost as-is with little changes when
 * this class is statically imported.
 * 

* This is a pure lightweight wrapper around WIN32 API calls with no added * syntactic sugar, functionality or niceties. *

* Here is a rude example: * *

 * 
 * import static jtermios.windows.WinAPI.*;
 * ...
 *    byte[] buffer = "Hello World".getBytes();
 *    HANDLE hcomm = CreateFileA( "COM5:", GENERIC_READ |GENERIC_WRITE, 0, null, 0, 0, null );
 *    int[] wrtn = {0};
 *    WriteFile(hcomm, buffer, buffer.length, wrtn);
 *    CloseHandle(hcomm);
 * 
 * 
* * Can't get much closer to C-code, what! *

* In addition to the basic open/close/read/write and setup operations this * class also makes available enough of the WIN32 Event API to make it possible * to use overlapped (asynchronous) I/O on COM ports. * *

* Note that overlapped IO API is full of fine print. Especially worth * mentioning is that the OVERLAPPED structure cannot use autosync as it is * modified (by Windows) outside the function calls that use it. OVERLAPPED * takes care of not autosyncing but it is best to us the writeField() methods * to set fields of OVERLAPPED. * *

 * 
 *    OVERLAPPED ovl = new OVERLAPPED();
 *    ovl.writeField("hEvent",CreateEvent(null, true, false, null));
 *   ...
 *    WriteFile(hComm, txm, txb.length, txn, ovl);
 *   ...
 *    GetOverlappedResult(hComm, ovl, txn, true);
 * 
 * 
* * @author Kustaa Nyholm * */ public class WinAPI { private static Windows_kernel32_lib m_K32lib; private static Windows_kernel32_lib_Direct m_K32libDM; private static WaitMultiple m_K32libWM; static { // Moved to static per JNA recommendations Native.setPreserveLastError(true); // For older JNA to hopefully preserve last error although we don't use it with Windows // This had to be separated out for Direct Mapping (no non-primative arrays) m_K32libWM = (WaitMultiple) Native.loadLibrary("kernel32", WaitMultiple.class, com.sun.jna.win32.W32APIOptions.ASCII_OPTIONS); // Added com.sun.jna.win32.W32APIOptions.ASCII_OPTIONS so we don't mix/match WString and String Native.register(Windows_kernel32_lib_Direct.class, NativeLibrary.getInstance("kernel32", com.sun.jna.win32.W32APIOptions.ASCII_OPTIONS)); m_K32libDM = new Windows_kernel32_lib_Direct(); m_K32lib = m_K32libDM; // m_K32lib = (Windows_kernel32_lib) Native.loadLibrary("kernel32", Windows_kernel32_lib.class, com.sun.jna.win32.W32APIOptions.ASCII_OPTIONS); } // The following is to fix JNA's non-thread-local getLastError implementation private static final ThreadLocal LastError = new ThreadLocal() { @Override protected int[] initialValue() { return new int[1]; // Arrays are always initialized to zero values } }; public static class HANDLE extends PointerType { private boolean immutable; public HANDLE() { } public HANDLE(Pointer p) { setPointer(p); immutable = true; } public Object fromNative(Object nativeValue, FromNativeContext context) { Object o = super.fromNative(nativeValue, context); if (NULL.equals(o)) return NULL; if (INVALID_HANDLE_VALUE.equals(o)) return INVALID_HANDLE_VALUE; return o; } public void setPointer(Pointer p) { if (immutable) { throw new UnsupportedOperationException("immutable"); } super.setPointer(p); } } public static HANDLE INVALID_HANDLE_VALUE = new HANDLE(Pointer.createConstant(Pointer.SIZE == 8 ? -1 : 0xFFFFFFFFL)); public static HANDLE NULL = new HANDLE(Pointer.createConstant(0)); public static class Windows_kernel32_lib_Direct implements Windows_kernel32_lib { native public HANDLE CreateFile(String name, int access, int mode, SECURITY_ATTRIBUTES security, int create, int atteribs, Pointer template) throws LastErrorException; native public boolean WriteFile(HANDLE hFile, byte[] buf, int wrn, int[] nwrtn, Pointer lpOverlapped) throws LastErrorException; native public boolean WriteFile(HANDLE hFile, Pointer buf, int wrn, int[] nwrtn, OVERLAPPED lpOverlapped) throws LastErrorException; native public boolean ReadFile(HANDLE hFile, byte[] buf, int rdn, int[] nrd, Pointer lpOverlapped) throws LastErrorException; native public boolean ReadFile(HANDLE hFile, Pointer lpBuffer, int rdn, int[] nrd, OVERLAPPED lpOverlapped) throws LastErrorException; native public boolean FlushFileBuffers(HANDLE hFile) throws LastErrorException; native public boolean PurgeComm(HANDLE hFile, int qmask) throws LastErrorException; native public boolean CancelIo(HANDLE hFile) throws LastErrorException; native public boolean CloseHandle(HANDLE hFile) throws LastErrorException; native public boolean ClearCommError(HANDLE hFile, int[] n, COMSTAT s) throws LastErrorException; native public boolean SetCommMask(HANDLE hFile, int dwEvtMask) throws LastErrorException; native public boolean GetCommMask(HANDLE hFile, int[] dwEvtMask) throws LastErrorException; native public boolean GetCommState(HANDLE hFile, DCB dcb) throws LastErrorException; native public boolean SetCommState(HANDLE hFile, DCB dcb) throws LastErrorException; native public boolean SetCommTimeouts(HANDLE hFile, COMMTIMEOUTS tout) throws LastErrorException; native public boolean SetupComm(HANDLE hFile, int dwInQueue, int dwOutQueue) throws LastErrorException; native public boolean SetCommBreak(HANDLE hFile) throws LastErrorException; native public boolean ClearCommBreak(HANDLE hFile) throws LastErrorException; native public boolean GetCommModemStatus(HANDLE hFile, int[] stat) throws LastErrorException; native public boolean EscapeCommFunction(HANDLE hFile, int func) throws LastErrorException; native public HANDLE CreateEvent(SECURITY_ATTRIBUTES lpEventAttributes, boolean bManualReset, boolean bInitialState, String lpName) throws LastErrorException; native public boolean ResetEvent(HANDLE hEvent) throws LastErrorException; native public boolean SetEvent(HANDLE hEvent) throws LastErrorException; native public boolean WaitCommEvent(HANDLE hFile, IntByReference lpEvtMask, OVERLAPPED lpOverlapped) throws LastErrorException; native public int WaitForSingleObject(HANDLE hHandle, int dwMilliseconds); native public boolean GetOverlappedResult(HANDLE hFile, OVERLAPPED lpOverlapped, int[] lpNumberOfBytesTransferred, boolean bWait) throws LastErrorException; native public int FormatMessageW(int flags, Pointer src, int msgId, int langId, Pointer dst, int sze, Pointer va_list); native public int QueryDosDevice(String name, byte[] buffer, int bsize) throws LastErrorException; } public interface WaitMultiple extends StdCallLibrary { public int WaitForMultipleObjects(int nCount, HANDLE[] lpHandles, boolean bWaitAll, int dwMilliseconds); } public interface Windows_kernel32_lib extends StdCallLibrary { public HANDLE CreateFile(String name, int access, int mode, SECURITY_ATTRIBUTES security, int create, int atteribs, Pointer template); public boolean WriteFile(HANDLE hFile, byte[] buf, int wrn, int[] nwrtn, Pointer lpOverlapped); public boolean WriteFile(HANDLE hFile, Pointer buf, int wrn, int[] nwrtn, OVERLAPPED lpOverlapped); public boolean ReadFile(HANDLE hFile, byte[] buf, int rdn, int[] nrd, Pointer lpOverlapped); public boolean ReadFile(HANDLE hFile, Pointer lpBuffer, int rdn, int[] nrd, OVERLAPPED lpOverlapped); public boolean FlushFileBuffers(HANDLE hFile); public boolean PurgeComm(HANDLE hFile, int qmask); public boolean CancelIo(HANDLE hFile); public boolean CloseHandle(HANDLE hFile); public boolean ClearCommError(HANDLE hFile, int[] n, COMSTAT s); public boolean SetCommMask(HANDLE hFile, int dwEvtMask); public boolean GetCommMask(HANDLE hFile, int[] dwEvtMask); public boolean GetCommState(HANDLE hFile, DCB dcb); public boolean SetCommState(HANDLE hFile, DCB dcb); public boolean SetCommTimeouts(HANDLE hFile, COMMTIMEOUTS tout); public boolean SetupComm(HANDLE hFile, int dwInQueue, int dwOutQueue); public boolean SetCommBreak(HANDLE hFile); public boolean ClearCommBreak(HANDLE hFile); public boolean GetCommModemStatus(HANDLE hFile, int[] stat); public boolean EscapeCommFunction(HANDLE hFile, int func); public HANDLE CreateEvent(SECURITY_ATTRIBUTES lpEventAttributes, boolean bManualReset, boolean bInitialState, String lpName); public boolean ResetEvent(HANDLE hEvent); public boolean SetEvent(HANDLE hEvent); public boolean WaitCommEvent(HANDLE hFile, IntByReference lpEvtMask, OVERLAPPED lpOverlapped); public int WaitForSingleObject(HANDLE hHandle, int dwMilliseconds); public boolean GetOverlappedResult(HANDLE hFile, OVERLAPPED lpOverlapped, int[] lpNumberOfBytesTransferred, boolean bWait); public int FormatMessageW(int flags, Pointer src, int msgId, int langId, Pointer dst, int sze, Pointer va_list); public int QueryDosDevice(String name, byte[] buffer, int bsize) ; } // There seems to be very little rhyme or reason from which header file // these come from in C, so I did not bother to keep track of the // origin of these constants public static final int ERROR_INSUFFICIENT_BUFFER = 122; public static final int MAXDWORD = 0xFFFFFFFF; public static final int STATUS_WAIT_0 = 0x00000000; public static final int STATUS_ABANDONED_WAIT_0 = 0x00000080; public static final int WAIT_ABANDONED = (STATUS_ABANDONED_WAIT_0) + 0; public static final int WAIT_ABANDONED_0 = (STATUS_ABANDONED_WAIT_0) + 0; public static final int WAIT_OBJECT_0 = ((STATUS_WAIT_0) + 0); public static final int WAIT_FAILED = 0xFFFFFFFF; public static final int INFINITE = 0xFFFFFFFF; public static final int WAIT_TIMEOUT = 258; // public static final int GENERIC_READ = 0x80000000; public static final int GENERIC_WRITE = 0x40000000; public static final int GENERIC_EXECUTE = 0x20000000; public static final int GENERIC_ALL = 0x10000000; public static final int CREATE_NEW = 1; public static final int CREATE_ALWAYS = 2; public static final int OPEN_EXISTING = 3; public static final int OPEN_ALWAYS = 4; public static final int TRUNCATE_EXISTING = 5; public static final int PURGE_TXABORT = 0x0001; public static final int PURGE_RXABORT = 0x0002; public static final int PURGE_TXCLEAR = 0x0004; public static final int PURGE_RXCLEAR = 0x0008; public static final int MS_CTS_ON = 0x0010; public static final int MS_DSR_ON = 0x0020; public static final int MS_RING_ON = 0x0040; public static final int MS_RLSD_ON = 0x0080; public static final int SETXOFF = 1; public static final int SETXON = 2; public static final int SETRTS = 3; public static final int CLRRTS = 4; public static final int SETDTR = 5; public static final int CLRDTR = 6; public static final int RESETDEV = 7; public static final int SETBREAK = 8; public static final int CLRBREAK = 9; public static final int FILE_FLAG_WRITE_THROUGH = 0x80000000; public static final int FILE_FLAG_OVERLAPPED = 0x40000000; public static final int FILE_FLAG_NO_BUFFERING = 0x20000000; public static final int FILE_FLAG_RANDOM_ACCESS = 0x10000000; public static final int FILE_FLAG_SEQUENTIAL_SCAN = 0x08000000; public static final int FILE_FLAG_DELETE_ON_CLOSE = 0x04000000; public static final int FILE_FLAG_BACKUP_SEMANTICS = 0x02000000; public static final int FILE_FLAG_POSIX_SEMANTICS = 0x01000000; public static final int FILE_FLAG_OPEN_REPARSE_POINT = 0x00200000; public static final int FILE_FLAG_OPEN_NO_RECALL = 0x00100000; public static final int FILE_FLAG_FIRST_PIPE_INSTANCE = 0x00080000; public static final int ERROR_OPERATION_ABORTED = 995; public static final int ERROR_IO_INCOMPLETE = 996; public static final int ERROR_IO_PENDING = 997; public static final int ERROR_BROKEN_PIPE = 109; public static final int ERROR_MORE_DATA = 234; public static final int ERROR_FILE_NOT_FOUND = 2; public static final byte NOPARITY = 0; public static final byte ODDPARITY = 1; public static final byte EVENPARITY = 2; public static final byte MARKPARITY = 3; public static final byte SPACEPARITY = 4; public static final byte ONESTOPBIT = 0; public static final byte ONE5STOPBITS = 1; public static final byte TWOSTOPBITS = 2; public static final int CBR_110 = 110; public static final int CBR_300 = 300; public static final int CBR_600 = 600; public static final int CBR_1200 = 1200; public static final int CBR_2400 = 2400; public static final int CBR_4800 = 4800; public static final int CBR_9600 = 9600; public static final int CBR_14400 = 14400; public static final int CBR_19200 = 19200; public static final int CBR_38400 = 38400; public static final int CBR_56000 = 56000; public static final int CBR_57600 = 57600; public static final int CBR_115200 = 115200; public static final int CBR_128000 = 128000; public static final int CBR_256000 = 256000; public static final int CE_RXOVER = 0x0001; public static final int CE_OVERRUN = 0x0002; public static final int CE_RXPARITY = 0x0004; public static final int CE_FRAME = 0x0008; public static final int CE_BREAK = 0x0010; public static final int CE_TXFULL = 0x0100; public static final int CE_PTO = 0x0200; public static final int CE_IOE = 0x0400; public static final int CE_DNS = 0x0800; public static final int CE_OOP = 0x1000; public static final int CE_MODE = 0x8000; public static final int IE_BADID = -1; public static final int IE_OPEN = -2; public static final int IE_NOPEN = -3; public static final int IE_MEMORY = -4; public static final int IE_DEFAULT = -5; public static final int IE_HARDWARE = -10; public static final int IE_BYTESIZE = -11; public static final int IE_BAUDRATE = -12; public static final int EV_RXCHAR = 0x0001; public static final int EV_RXFLAG = 0x0002; public static final int EV_TXEMPTY = 0x0004; public static final int EV_CTS = 0x0008; public static final int EV_DSR = 0x0010; public static final int EV_RLSD = 0x0020; public static final int EV_BREAK = 0x0040; public static final int EV_ERR = 0x0080; public static final int EV_RING = 0x0100; public static final int EV_PERR = 0x0200; public static final int EV_RX80FULL = 0x0400; public static final int EV_EVENT1 = 0x0800; public static final int EV_EVENT2 = 0x1000; public static final int FORMAT_MESSAGE_ALLOCATE_BUFFER = 0x00000100; public static final int FORMAT_MESSAGE_IGNORE_INSERTS = 0x00000200; public static final int FORMAT_MESSAGE_FROM_STRING = 0x00000400; public static final int FORMAT_MESSAGE_FROM_HMODULE = 0x00000800; public static final int FORMAT_MESSAGE_FROM_SYSTEM = 0x00001000; public static final int FORMAT_MESSAGE_ARGUMENT_ARRAY = 0x00002000; public static final int FORMAT_MESSAGE_MAX_WIDTH_MASK = 0x000000FF; public static final int LANG_NEUTRAL = 0x00; public static final int SUBLANG_DEFAULT = 0x01; public static int MAKELANGID(int p, int s) { return (s << 10) | p; } public static class ULONG_PTR extends IntegerType { public ULONG_PTR() { this(0); } public ULONG_PTR(long value) { super(Pointer.SIZE, value); } } /** * Represent the Windows API struct OVERLAPPED. The constructor of this * class does 'this.setAutoSynch(false)' because instances of this class * should not be auto synchronized nor written as a whole, because Windows * stores pointers to the actual memory representing this this struct and * modifies it outside the function calls and copying (writing) the Java * class fields to the actual memory will destroy those structures. * *

* To set the fields it recommend to use the 'writeField(String,Object)'. It * is ok to read those fields of OVERLAPPED using Java dot-notatio. that * have been written by Java code, but those field that Windows modifies * should be accessed using 'readField(String)' or by invoking 'read()' on * the object before accessing the fields with the java dot-notation. *

* For example this is acceptable usage for doing overlapped I/O (except * this code does no error checking!): * *

	 * 
	 *  OVERLAPPED ovl = new OVERLAPPED();
	 *  ovl.writeField("hEvent", CreateEvent(null, true, false, null));
	 *  ResetEvent(osReader.hEvent);
	 *  ReadFile(hComm, buffer, reqN, recN, ovl);
	 * 
	 * 
* * @author nyholku * */ public static class OVERLAPPED extends Structure { public ULONG_PTR Internal; public ULONG_PTR InternalHigh; public int Offset; public int OffsetHigh; public HANDLE hEvent; @Override protected List getFieldOrder() { return Arrays.asList("Internal",// "InternalHigh",// "Offset",// "OffsetHigh",// "hEvent"// ); } public OVERLAPPED() { setAutoSynch(false); } public String toString() { return String.format(// "[Offset %d OffsetHigh %d hEvent %s]",// Offset, OffsetHigh, hEvent.toString()); } } public static class SECURITY_ATTRIBUTES extends Structure { public int nLength; public Pointer lpSecurityDescriptor; public boolean bInheritHandle; @Override protected List getFieldOrder() { return Arrays.asList("nLength",// "lpSecurityDescriptor",// "bInheritHandle"// ); } } public static class DCB extends Structure { public int DCBlength; public int BaudRate; public int fFlags; // No bit field mapping in JNA so define a flags field and masks for fFlags public static final int fBinary = 0x00000001; public static final int fParity = 0x00000002; public static final int fOutxCtsFlow = 0x00000004; public static final int fOutxDsrFlow = 0x00000008; public static final int fDtrControl = 0x00000030; public static final int fDsrSensitivity = 0x00000040; public static final int fTXContinueOnXoff = 0x00000080; public static final int fOutX = 0x00000100; public static final int fInX = 0x00000200; public static final int fErrorChar = 0x00000400; public static final int fNull = 0x00000800; public static final int fRtsControl = 0x00003000; public static final int fAbortOnError = 0x00004000; public static final int fDummy2 = 0xFFFF8000; public short wReserved; public short XonLim; public short XoffLim; public byte ByteSize; public byte Parity; public byte StopBits; public byte XonChar; public byte XoffChar; public byte ErrorChar; public byte EofChar; public byte EvtChar; public short wReserved1; @Override protected List getFieldOrder() { return Arrays.asList("DCBlength",// "BaudRate",// "fFlags",// "wReserved",// "XonLim",// "XoffLim",// "ByteSize",// "Parity",// "StopBits",// "XonChar",// "XoffChar",// "ErrorChar",// "EofChar",// "EvtChar",// "wReserved1"// ); } public String toString() { return String.format(// "[BaudRate %d fFlags %04X wReserved %d XonLim %d XoffLim %d ByteSize %d Parity %d StopBits %d XonChar %02X XoffChar %02X ErrorChar %02X EofChar %02X EvtChar %02X wReserved1 %d]", // BaudRate, fFlags, wReserved, XonLim, XoffLim, ByteSize, Parity, StopBits, XonChar, XoffChar, ErrorChar, EofChar, EvtChar, wReserved1); } }; public static class COMMTIMEOUTS extends Structure { public int ReadIntervalTimeout; public int ReadTotalTimeoutMultiplier; public int ReadTotalTimeoutConstant; public int WriteTotalTimeoutMultiplier; public int WriteTotalTimeoutConstant; @Override protected List getFieldOrder() { return Arrays.asList("ReadIntervalTimeout",// "ReadTotalTimeoutMultiplier",// "ReadTotalTimeoutConstant",// "WriteTotalTimeoutMultiplier",// "WriteTotalTimeoutConstant"// ); } public String toString() { return String.format(// "[ReadIntervalTimeout %d ReadTotalTimeoutMultiplier %d ReadTotalTimeoutConstant %d WriteTotalTimeoutMultiplier %d WriteTotalTimeoutConstant %d]", // ReadIntervalTimeout, ReadTotalTimeoutMultiplier, ReadTotalTimeoutConstant, WriteTotalTimeoutMultiplier, WriteTotalTimeoutConstant); } }; public static class COMSTAT extends Structure { public int fFlags; public static final int fCtsHold = 0x00000001; public static final int fDsrHold = 0x00000002; public static final int fRlsdHold = 0x00000004; public static final int fXoffHold = 0x00000008; public static final int fXoffSent = 0x00000010; public static final int fEof = 0x00000020; public static final int fTxim = 0x00000040; public static final int fReserved = 0xFFFFFF80; public int cbInQue; public int cbOutQue; @Override protected List getFieldOrder() { return Arrays.asList("fFlags",// "cbInQue",// "cbOutQue"// ); } public String toString() { return String.format("[fFlags %04X cbInQue %d cbInQue %d]", fFlags, cbInQue, cbOutQue); } }; static public HANDLE CreateFile(String name, int access, int sharing, SECURITY_ATTRIBUTES security, int create, int attribs, Pointer template) { log = log && log(5, "> CreateFileA(%s, 0x%08X, 0x%08X, %s, 0x%08X, 0x%08X,%s)\n", name, access, sharing, security, create, attribs, template); HANDLE h; try { h = m_K32lib.CreateFile(name, access, sharing, security, create, attribs, template); LastError.get()[0] = 0; } catch (LastErrorException le) { h = INVALID_HANDLE_VALUE; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< CreateFileA(%s, 0x%08X, 0x%08X, %s, 0x%08X, 0x%08X,%s) => %s\n", name, access, sharing, security, create, attribs, template, h); return h; } // This is for synchronous writes only static public boolean WriteFile(HANDLE hFile, byte[] buf, int wrn, int[] nwrtn) { log = log && log(5, "> WriteFile(%s, %s, %d, [%d])\n", hFile, log(buf, wrn), wrn, nwrtn[0]); boolean res; try { res = m_K32lib.WriteFile(hFile, buf, wrn, nwrtn, null); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< WriteFile(%s, %s, %d, [%d]) => %s\n", hFile, log(buf, wrn), wrn, nwrtn[0], res); return res; } // This can be used with synchronous as well as overlapped writes static public boolean WriteFile(HANDLE hFile, Pointer buf, int wrn, int[] nwrtn, OVERLAPPED ovrlp) { log = log && log(5, "> WriteFile(%s, %s, %d, [%d], %s)\n", hFile, log(buf.getByteArray(0, wrn), 5), wrn, nwrtn[0], ref(ovrlp)); boolean res; try { res = m_K32lib.WriteFile(hFile, buf, wrn, nwrtn, ovrlp); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< WriteFile(%s, %s, %d, [%d], %s) => %s\n", hFile, log(buf.getByteArray(0, wrn), 5), wrn, nwrtn[0], ref(ovrlp), res); return res; } // This is for synchronous reads only static public boolean ReadFile(HANDLE hFile, byte[] buf, int rdn, int[] nrd) { log = log && log(5, "> ReadFile(%s, %s, %d, [%d])\n", hFile, log(buf, rdn), rdn, nrd[0]); boolean res; try { res = m_K32lib.ReadFile(hFile, buf, rdn, nrd, null); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< ReadFile(%s, %s, %d, [%d]) => %s\n", hFile, log(buf, rdn), rdn, nrd[0], res); return res; } // This can be used with synchronous as well as overlapped reads static public boolean ReadFile(HANDLE hFile, Pointer buf, int rdn, int[] nrd, OVERLAPPED ovrlp) { log = log && log(5, "> ReadFile(%s, %s, %d, [%d], %s)\n", hFile, log(buf.getByteArray(0, rdn), 5), rdn, nrd[0], ref(ovrlp)); boolean res; try { res = m_K32lib.ReadFile(hFile, buf, rdn, nrd, ovrlp); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< ReadFile(%s, %s, %d, [%d], %s) => %s\n", hFile, log(buf.getByteArray(0, rdn), 5), rdn, nrd[0], ref(ovrlp), res); return res; } static public boolean FlushFileBuffers(HANDLE hFile) { log = log && log(5, "> FlushFileBuffers(%s)\n", hFile); boolean res; try { res = m_K32lib.FlushFileBuffers(hFile); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< FlushFileBuffers(%s) => %s\n", hFile, res); return res; } static public boolean PurgeComm(HANDLE hFile, int qmask) { log = log && log(5, "> PurgeComm(%s,0x%08X)\n", hFile, qmask); boolean res; try { res = m_K32lib.PurgeComm(hFile, qmask); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< PurgeComm(%s,0x%08X) => %s\n", hFile, qmask, res); return res; } static public boolean CancelIo(HANDLE hFile) { log = log && log(5, "> CancelIo(%s)\n", hFile); boolean res; try { res = m_K32lib.CancelIo(hFile); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< CancelIo(%s) => %s\n", hFile, res); return res; } static public boolean CloseHandle(HANDLE hFile) { log = log && log(5, "> CloseHandle(%s)\n", hFile); boolean res; try { res = m_K32lib.CloseHandle(hFile); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< CloseHandle(%s) => %s\n", hFile, res); return res; } static public boolean ClearCommError(HANDLE hFile, int[] n, COMSTAT s) { log = log && log(5, "> ClearCommError(%s, [%d], %s)\n", hFile, n[0], s); boolean res; try { res = m_K32lib.ClearCommError(hFile, n, s); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< ClearCommError(%s, [%d], %s) => %s\n", hFile, n[0], s, res); return res; } static public boolean SetCommMask(HANDLE hFile, int mask) { log = log && log(5, "> SetCommMask(%s, 0x%08X)\n", hFile, mask); boolean res; try { res = m_K32lib.SetCommMask(hFile, mask); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< SetCommMask(%s, 0x%08X) => %s\n", hFile, mask, res); return res; } static public boolean GetCommMask(HANDLE hFile, int[] mask) { log = log && log(5, "> GetCommMask(%s, [0x%08X])\n", hFile, mask[0]); boolean res; try { res = m_K32lib.GetCommMask(hFile, mask); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< GetCommMask(%s, [0x%08X]) => %s\n", hFile, mask[0], res); return res; } static public boolean GetCommState(HANDLE hFile, DCB dcb) { log = log && log(5, "> GetCommState(%s, %s)\n", hFile, dcb); boolean res; try { res = m_K32lib.GetCommState(hFile, dcb); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< GetCommState(%s, %s) => %s\n", hFile, dcb, res); return res; } static public boolean SetCommState(HANDLE hFile, DCB dcb) { log = log && log(5, "> SetCommState(%s, %s)\n", hFile, dcb); boolean res; try { res = m_K32lib.SetCommState(hFile, dcb); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< SetCommState(%s, %s) => %s\n", hFile, dcb, res); return res; } static public boolean SetCommTimeouts(HANDLE hFile, COMMTIMEOUTS touts) { log = log && log(5, "> SetCommTimeouts(%s, %s)\n", hFile, touts); boolean res; try { res = m_K32lib.SetCommTimeouts(hFile, touts); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< SetCommTimeouts(%s, %s) => %s\n", hFile, touts, res); return res; } static public boolean SetupComm(HANDLE hFile, int inQueueSz, int outQueueSz) { log = log && log(5, "> SetCommTimeouts(%s, %d, %d)\n", hFile, inQueueSz, outQueueSz); boolean res; try { res = m_K32lib.SetupComm(hFile, inQueueSz, outQueueSz); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< SetCommTimeouts(%s, %d, %d) => %s\n", hFile, inQueueSz, outQueueSz, res); return res; } static public boolean SetCommBreak(HANDLE hFile) { log = log && log(5, "> SetCommBreak(%s)\n", hFile); boolean res; try { res = m_K32lib.SetCommBreak(hFile); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< SetCommBreak(%s) => %s\n", hFile, res); return res; } static public boolean ClearCommBreak(HANDLE hFile) { log = log && log(5, "> ClearCommBreak(%s)\n", hFile); boolean res; try { res = m_K32lib.ClearCommBreak(hFile); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< ClearCommBreak(%s) => %s\n", hFile, res); return res; } static public boolean GetCommModemStatus(HANDLE hFile, int[] stat) { log = log && log(5, "> GetCommModemStatus(%s,0x%08X)\n", hFile, stat[0]); boolean res; try { res = m_K32lib.GetCommModemStatus(hFile, stat); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< GetCommModemStatus(%s,0x%08X) => %s\n", hFile, stat[0], res); return res; } static public boolean EscapeCommFunction(HANDLE hFile, int func) { log = log && log(5, "> EscapeCommFunction(%s,0x%08X)\n", hFile, func); boolean res; try { res = m_K32lib.EscapeCommFunction(hFile, func); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< EscapeCommFunction(%s,0x%08X) => %s\n", hFile, func, res); return res; } static public HANDLE CreateEvent(SECURITY_ATTRIBUTES security, boolean manual, boolean initial, String name) { log = log && log(5, "> CreateEventA(%s, %s, %s, %s)\n", ref(security), manual, initial, name); HANDLE h; try { h = m_K32lib.CreateEvent(security, manual, initial, name); LastError.get()[0] = 0; } catch (LastErrorException le) { h = INVALID_HANDLE_VALUE; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< CreateEventA(%s, %s, %s, %s) => %s\n", ref(security), manual, initial, name, h); return h; } static public boolean SetEvent(HANDLE hEvent) { log = log && log(5, "> SetEvent(%s)\n", hEvent); boolean res; try { res = m_K32lib.SetEvent(hEvent); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< SetEvent(%s) => %s\n", hEvent, res); return res; } static public boolean ResetEvent(HANDLE hEvent) { log = log && log(5, "> ResetEvent(%s)\n", hEvent); boolean res; try { res = m_K32lib.ResetEvent(hEvent); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< ResetEvent(%s) => %s\n", hEvent, res); return res; } static public boolean WaitCommEvent(HANDLE hFile, IntByReference lpEvtMask, OVERLAPPED ovl) { log = log && log(5, "> WaitCommEvent(%s, [%d], %s)\n", hFile, lpEvtMask.getValue(), ref(ovl)); boolean res; try { res = m_K32lib.WaitCommEvent(hFile, lpEvtMask, ovl); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< WaitCommEvent(%s, [%d], %s) => %s\n", hFile, lpEvtMask.getValue(), ref(ovl), res); return res; } static public boolean WaitCommEvent(HANDLE hFile, int[] lpEvtMask) { log = log && log(5, "> WaitCommEvent(%s, [%d], %s) => %s\n", hFile, lpEvtMask[0], null); IntByReference brlpEvtMask = new IntByReference(lpEvtMask[0]); boolean res; try { res = m_K32lib.WaitCommEvent(hFile, brlpEvtMask, null); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } lpEvtMask[0] = brlpEvtMask.getValue(); log = log && log(4, "< WaitCommEvent(%s, [%d], %s) => %s\n", hFile, lpEvtMask[0], null, res); return res; } static public int WaitForSingleObject(HANDLE hHandle, int dwMilliseconds) { log = log && log(5, "> WaitForSingleObject(%s, %d)\n", hHandle, dwMilliseconds); int res = m_K32lib.WaitForSingleObject(hHandle, dwMilliseconds); log = log && log(4, "< WaitForSingleObject(%s, %d) => %s\n", hHandle, dwMilliseconds, res); return res; } static public int WaitForMultipleObjects(int nCount, HANDLE[] lpHandles, boolean bWaitAll, int dwMilliseconds) { log = log && log(5, "> WaitForMultipleObjects(%d, %s, %s, %d)\n", nCount, log(lpHandles, 3), bWaitAll, dwMilliseconds); int res = m_K32libWM.WaitForMultipleObjects(nCount, lpHandles, bWaitAll, dwMilliseconds); log = log && log(4, "< WaitForMultipleObjects(%d, %s, %s, %d) => %s\n", nCount, log(lpHandles, 3), bWaitAll, dwMilliseconds, res); return res; } static public boolean GetOverlappedResult(HANDLE hFile, OVERLAPPED ovl, int[] ntfrd, boolean wait) { log = log && log(5, "> GetOverlappedResult(%s, %s, [%d], %s)\n", hFile, ref(ovl), ntfrd[0], wait); boolean res; try { res = m_K32lib.GetOverlappedResult(hFile, ovl, ntfrd, wait); LastError.get()[0] = 0; } catch (LastErrorException le) { res = false; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< GetOverlappedResult(%s, %s, [%d], %s) => %s\n", hFile, ref(ovl), ntfrd[0], wait, res); return res; } static public int GetLastError() { log = log && log(5, "> GetLastError()\n"); int res = LastError.get()[0]; // This prevents multiple retrying to create this function per JNA rules log = log && log(4, "< GetLastError() => %d\n", res); return res; } static public int FormatMessageW(int flags, Pointer src, int msgId, int langId, Pointer dst, int sze, Pointer va_list) { log = log && log(5, "> FormatMessageW(%08x, %08x, %d, %d, %s, %d, %s)\n", flags, src, msgId, langId, dst, sze, va_list); int res = m_K32lib.FormatMessageW(flags, src, msgId, langId, dst, sze, va_list); log = log && log(4, "< FormatMessageW(%08x, %08x, %d, %d, %s, %d, %s) => %d\n", flags, src, msgId, langId, dst, sze, va_list, res); return res; } static public int QueryDosDevice(String name, byte[] buffer, int bsize) { log = log && log(5, "> QueryDosDeviceA(%s, %s, %d)\n", name, buffer, bsize); int res; try { res = m_K32lib.QueryDosDevice(name, buffer, bsize); LastError.get()[0] = 0; } catch (LastErrorException le) { res = 0; LastError.get()[0] = le.getErrorCode(); } log = log && log(4, "< QueryDosDeviceA(%s, %s, %d) => %d\n", name, buffer, bsize, res); return res; } }




© 2015 - 2024 Weber Informatics LLC | Privacy Policy