arch/all-mingw32/filesys/emul_handler/emul_handler_native.c

   1 /*
   2     Copyright © 1995-2010, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc: Host-side hepler code for Windows emul.handler
   6     Lang: english
   7 */
   8
   9 #define _WIN32_IE 0x0500
  10 #include <windows.h>
  11 #include <shlobj.h>
  12
  13 #include <stdio.h>
  14 #include <aros/irq.h>
  15
  16 #include "emul_host.h"
  17
  18 #define DWINAPI(x)   /* WinAPI calls debug            */
  19 #define DASYNC(x)    /* Asynchronous I/O thread debug */
  20
  21 HMODULE kernel_lib;
  22 void (*CauseIRQ)(unsigned char irq, void *data);
  23
  24 /*********************************************************************************************/
  25
  26 unsigned long __declspec(dllexport) __aros EmulGetHome(const char *name, char *home)
  27 {
  28     HRESULT res;
  29
  30     /* TODO: currently username is ignored, however we should acquire an access token for it */
  31     DWINAPI(printf("[EmulHandler] SHGetFolderPath()\n"));
  32
  33     res = SHGetFolderPath(NULL, CSIDL_PERSONAL, NULL, SHGFP_TYPE_DEFAULT, home);
  34     return res ? ERROR_FILE_NOT_FOUND : 0;
  35 }
  36
  37 static DWORD WINAPI EmulThread(struct AsyncReaderControl *emsg)
  38 {
  39     BOOL res;
  40
  41     DASYNC(printf("[EmulHandler I/O] Thread started, handle 0x%08lX, host handle 0x%08lX, host ID %lu\n", THandle, THandle->handle, THandle->id));
  42     for (;;)
  43     {
  44         WaitForSingleObject(emsg->CmdEvent, INFINITE);
  45         DASYNC(printf("[EmulHandler I/O] Got command: 0xu\n", emsg->cmd));
  46         switch(emsg->cmd)
  47         {
  48         case ASYNC_CMD_SHUTDOWN:
  49             DASYNC(printf("[EmulHandler I/O] shutting down thread\n"));
  50             return 0;
  51
  52         case ASYNC_CMD_READ:
  53             DASYNC(printf("[EmulHandler I/O] READ %lu bytes at 0x%p, file 0x%p\n", emsg->len, emsg->addr, emsg->fh));
  54             DWORD actual;
  55             res = ReadFile(emsg->fh, emsg->addr, emsg->len, &actual, NULL);
  56             emsg->actual = actual;
  57             emsg->error = res ? 0 : GetLastError();
  58             DASYNC(printf("[EmulHandler I/O] %lu bytes transferred, result %ld, error %lu\n", emsg->actual, res, emsg->error));
  59             KrnCauseSystemIRQ(emsg->IrqNum);
  60         }
  61     }
  62 }
  63
  64 struct AsyncReaderControl ControlStruct;
  65
  66 struct AsyncReaderControl * __declspec(dllexport) __aros Emul_Init_Native(void)
  67 {
  68     HANDLE thread;
  69     DWORD id;
  70     long irq;
  71
  72     irq = KrnAllocSystemIRQ();
  73     if (irq != -1)
  74     {
  75         ControlStruct.IrqNum = irq;
  76         ControlStruct.CmdEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
  77         if (ControlStruct.CmdEvent)
  78         {
  79             thread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)EmulThread, &ControlStruct, 0, &id);
  80             if (thread)
  81             {
  82                 CloseHandle(thread);
  83                 return &ControlStruct;
  84             }
  85             CloseHandle(ControlStruct.CmdEvent);
  86         }
  87     }
  88     return NULL;
  89 }
  90