aplfw/driver/serial/winsock/winsockdrv.c

   1
   2
   3
   4 #include "winsockdrv_local.h"
   5
   6
   7 const T_DRVOBJ_METHODS  WinSockDrv_Methods =
   8         {
   9                 WinSockDrv_Delete,
  10                 WinSockDrv_Open,
  11                 WinSockDrv_Close,
  12                 WinSockDrv_IoControl,
  13                 WinSockDrv_Seek,
  14                 WinSockDrv_Read,
  15                 WinSockDrv_Write,
  16                 WinSockDrv_Flush,
  17         };
  18
  19
  20 /** コンストラクタ */
  21 void WinSockDrv_Create(C_WINSOCKDRV *self, int iPortNum, int iIntNum, int iBufSize)
  22 {
  23         WSADATA wsaData;
  24         struct sockaddr_in addr;
  25
  26         /* 親クラス初期化 */
  27         DrvObj_Create(&self->DrvObj, &WinSockDrv_Methods);
  28
  29         WSAStartup(MAKEWORD(2,0), &wsaData);
  30
  31         self->sock0 = socket(AF_INET, SOCK_STREAM, 0);
  32
  33         addr.sin_family = AF_INET;
  34         addr.sin_port = htons((u_short)iPortNum);
  35         addr.sin_addr.S_un.S_addr = INADDR_ANY;
  36
  37         bind(self->sock0, (struct sockaddr *)&addr, sizeof(addr));
  38
  39         listen(self->sock0, 5);
  40 }
  41
  42
  43 /** デストラクタ */
  44 void WinSockDrv_Delete(C_DRVOBJ *pDrvObj)
  45 {
  46         WSACleanup();
  47 }
  48
  49
  50 /** オープン */
  51 HANDLE WinSockDrv_Open(C_DRVOBJ *pDrvObj, const char *pszPath, int iMode)
  52 {
  53         C_WINSOCKDRV            *self;
  54         C_FILEOBJ                       *pFileObj;
  55         struct sockaddr_in      client;
  56         int                                     len;
  57
  58         /* upper cast */
  59         self = (C_WINSOCKDRV *)pDrvObj;
  60
  61         /* create file descriptor */
  62         if ( (pFileObj = SysMem_Alloc(sizeof(*pFileObj))) == NULL )
  63         {
  64                 return HANDLE_NULL;
  65         }
  66         FileObj_Create(pFileObj, pDrvObj, NULL);
  67
  68         /* オープン処理 */
  69         if ( self->iOpenCount++ == 0 )
  70         {
  71                 len = sizeof(client);
  72                 self->sock = accept(self->sock0, (struct sockaddr *)&client, &len);
  73         }
  74
  75         return (HANDLE)pFileObj;
  76 }
  77
  78
  79 /** クローズ */
  80 FILE_ERR WinSockDrv_Close(C_DRVOBJ *pDrvObj, C_FILEOBJ *pFileObj)
  81 {
  82         C_WINSOCKDRV *self;
  83
  84         /* upper cast */
  85         self = (C_WINSOCKDRV *)pDrvObj;
  86
  87         if ( --self->iOpenCount == 0 )
  88         {
  89                 closesocket(self->sock);
  90         }
  91
  92         return FILE_ERR_OK;
  93 }
  94
  95
  96 FILE_ERR  WinSockDrv_IoControl(C_DRVOBJ *pDrvObj, C_FILEOBJ *pFileObj, int iFunc, const void *pInBuf, FILE_SIZE InSize, void *pOutBuf, FILE_SIZE OutSize)
  97 {
  98         return FILE_ERR_NG;
  99 }
 100
 101
 102 FILE_POS  WinSockDrv_Seek(C_DRVOBJ *pDrvObj, C_FILEOBJ *pFileObj, FILE_POS Offset, int iOrign)
 103 {
 104         return FILE_ERR_NG;
 105 }
 106
 107
 108 /** 読み出し */
 109 FILE_SIZE WinSockDrv_Read(C_DRVOBJ *pDrvObj, C_FILEOBJ *pFileObj, void *pBuf, FILE_SIZE Size)
 110 {
 111         C_WINSOCKDRV *self;
 112
 113         /* upper cast */
 114         self = (C_WINSOCKDRV *)pDrvObj;
 115
 116         return recv(self->sock, pBuf, Size, 0);
 117 }
 118
 119
 120 /** 書き込み */
 121 FILE_SIZE WinSockDrv_Write(C_DRVOBJ *pDrvObj, C_FILEOBJ *pFileObj, const void *pData, FILE_SIZE Size)
 122 {
 123         C_WINSOCKDRV *self;
 124
 125         /* upper cast */
 126         self = (C_WINSOCKDRV *)pDrvObj;
 127
 128         return send(self->sock, pData, Size, 0);
 129 }
 130
 131
 132 FILE_ERR  WinSockDrv_Flush(C_DRVOBJ *pDrvObj, C_FILEOBJ *pFileObj)
 133 {
 134         return FILE_ERR_OK;
 135 }
 136