Changeset 6447 in vbox for trunk/src/VBox/Additions/common/VBoxGuestLib/VBoxGuestR3LibGR.cpp

Timestamp:

Jan 22, 2008 3:32:45 PM (17 years ago)

Author:

vboxsync

Message:

Made VbglR3GR* private, split up the code a bit to make it more suitable for static linking.

File:

• trunk/src/VBox/Additions/common/VBoxGuestLib/VBoxGuestR3LibGR.cpp (copied) (copied from trunk/src/VBox/Additions/common/VBoxGuestLib/VBoxGuestR3Lib.cpp ) (4 diffs)

trunk/src/VBox/Additions/common/VBoxGuestLib/VBoxGuestR3LibGR.cpp

@@ -1 @@
-/** $Id$ */
+/* $Id$ */
 /** @file
- * VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions.
+ * VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, GR.
  */
 
@@ -20 +20 @@
 *   Header Files                                                               *
 *******************************************************************************/
-#ifdef RT_OS_OS2
-# define INCL_BASE
-# define INCL_ERRORS
-# include <os2.h>
-#elif defined(RT_OS_SOLARIS)
-# include <sys/types.h>
-# include <sys/stat.h>
-# include <errno.h>
-# include <unistd.h>
-#endif
-
-#include <iprt/time.h>
-#include <iprt/asm.h>
+#include <iprt/mem.h>
+#include <iprt/assert.h>
 #include <iprt/string.h>
-#include <iprt/file.h>
-#include <iprt/assert.h>
-#include <iprt/mem.h>
-#include <iprt/alloca.h>
+#include <iprt/err.h>
 #include <VBox/VBoxGuest.h>
+#include "VBGLR3Internal.h"
 
 
-/*******************************************************************************
-*   Global Variables                                                           *
-*******************************************************************************/
-/** The VBoxGuest device handle. */
-static RTFILE g_File = NIL_RTFILE;
-
-
-VBGLR3DECL(int) VbglR3Init(void)
-{
-    if (g_File != NIL_RTFILE)
-        return VINF_SUCCESS;
-
-#if defined(RT_OS_OS2)
-    /*
-     * We might wish to compile this with Watcom, so stick to
-     * the OS/2 APIs all the way. And in any case we have to use
-     * DosDevIOCtl for the requests, why not use Dos* for everything.
-     */
-    HFILE hf = NULLHANDLE;
-    ULONG ulAction = 0;
-    APIRET rc = DosOpen((PCSZ)VBOXGUEST_DEVICE_NAME, &hf, &ulAction, 0, FILE_NORMAL,
-                        OPEN_ACTION_OPEN_IF_EXISTS,
-                        OPEN_FLAGS_FAIL_ON_ERROR | OPEN_FLAGS_NOINHERIT | OPEN_SHARE_DENYNONE | OPEN_ACCESS_READWRITE,
-                        NULL);
-    if (rc)
-        return RTErrConvertFromOS2(rc);
-
-    if (hf < 16)
-    {
-        HFILE ahfs[16];
-        unsigned i;
-        for (i = 0; i < RT_ELEMENTS(ahfs); i++)
-        {
-            ahfs[i] = 0xffffffff;
-            rc = DosDupHandle(hf, &ahfs[i]);
-            if (rc)
-                break;
-        }
-
-        if (i-- > 1)
-        {
-            ULONG fulState = 0;
-            rc = DosQueryFHState(ahfs[i], &fulState);
-            if (!rc)
-            {
-                fulState |= OPEN_FLAGS_NOINHERIT;
-                fulState &= OPEN_FLAGS_WRITE_THROUGH | OPEN_FLAGS_FAIL_ON_ERROR | OPEN_FLAGS_NO_CACHE | OPEN_FLAGS_NOINHERIT; /* Turn off non-participating bits. */
-                rc = DosSetFHState(ahfs[i], fulState);
-            }
-            if (!rc)
-            {
-                rc = DosClose(hf);
-                AssertMsg(!rc, ("%ld\n", rc));
-                hf = ahfs[i];
-            }
-            else
-                i++;
-            while (i-- > 0)
-                DosClose(ahfs[i]);
-        }
-    }
-    g_File = hf;
-
-     /* PORTME */
-#else
-    /* the default implemenation. (linux, solaris) */
-    RTFILE File;
-    int rc = RTFileOpen(&File, VBOXGUEST_DEVICE_NAME, RTFILE_O_READWRITE | RTFILE_O_OPEN | RTFILE_O_DENY_NONE);
-    if (RT_FAILURE(rc))
-        return rc;
-    g_File = File;
-
-#endif
-
-    return VINF_SUCCESS;
-}
-
-
-VBGLR3DECL(void) VbglR3Term(void)
-{
-    RTFILE File = g_File;
-    g_File = NIL_RTFILE;
-    if (File == NIL_RTFILE)
-        return;
-#if defined(RT_OS_OS2)
-    APIRET rc = DosClose(File);
-    AssertMsg(!rc, ("%ld\n", rc));
-#else
-    int rc = RTFileClose(File);
-    AssertRC(rc);
-#endif
-}
-
-
-/**
- * Internal wrapper around various OS specific ioctl implemenations.
- *
- * @returns VBox status code as returned by VBoxGuestCommonIOCtl, or
- *          an failure returned by the OS specific ioctl APIs.
- *
- * @param   iFunction   The requested function.
- * @param   pvData      The input and output data buffer.
- * @param   cbData      The size of the buffer.
- *
- * @remark  Exactly how the VBoxGuestCommonIOCtl is ferried back
- *          here is OS specific. On BSD and Darwin we can use errno,
- *          while on OS/2 we use the 2nd buffer of the IOCtl.
- */
-int vbglR3DoIOCtl(unsigned iFunction, void *pvData, size_t cbData)
-{
-#ifdef RT_OS_OS2
-    ULONG cbOS2Parm = cbData;
-    int32_t vrc = VERR_INTERNAL_ERROR;
-    ULONG cbOS2Data = sizeof(vrc);
-    APIRET rc = DosDevIOCtl(g_File, VBOXGUEST_IOCTL_CATEGORY, iFunction,
-                            pvData, cbData, &cbOS2Parm,
-                            &vrc, sizeof(vrc), &cbOS2Data);
-    if (RT_LIKELY(!rc))
-        return vrc;
-    return RTErrConvertFromOS2(rc);
-
-#elif defined(RT_OS_SOLARIS)
-    VBGLBIGREQ Hdr;
-    Hdr.u32Magic = VBGLBIGREQ_MAGIC;
-    Hdr.cbData = cbData;
-    Hdr.pvDataR3 = pvData;
-
-    int rc = ioctl((int)g_File, iFunction, &Hdr);
-    if (rc == -1)
-        rc = errno;
-    return rc;
-
-#else
-    /* Default implementation - PORTME: Do not use this without testings that error passing works! */
-    int rc2 = VERR_INTERNAL_ERROR;
-    int rc = RTFileIoCtl(g_File, (int)iFunction, pvData, cbData, &rc2);
-    if (RT_SUCCESS(rc))
-        rc = rc2;
-    return rc;
-#endif
-}
-
-
-VBGLR3DECL(int) VbglR3GRAlloc(VMMDevRequestHeader **ppReq, uint32_t cb, VMMDevRequestType enmReqType)
+int vbglR3GRAlloc(VMMDevRequestHeader **ppReq, uint32_t cb, VMMDevRequestType enmReqType)
 {
     VMMDevRequestHeader *pReq;
@@ -209 +53 @@
 
 
-VBGLR3DECL(int) VbglR3GRPerform(VMMDevRequestHeader *pReq)
+int vbglR3GRPerform(VMMDevRequestHeader *pReq)
 {
     return vbglR3DoIOCtl(VBOXGUEST_IOCTL_VMMREQUEST(pReq->size), pReq, pReq->size);
@@ -215 +59 @@
 
 
-VBGLR3DECL(void) VbglR3GRFree(VMMDevRequestHeader *pReq)
+void vbglR3GRFree(VMMDevRequestHeader *pReq)
 {
     RTMemTmpFree(pReq);
 }
 
-
-VBGLR3DECL(int) VbglR3GetHostTime(PRTTIMESPEC pTime)
-{
-    VMMDevReqHostTime Req;
-    vmmdevInitRequest(&Req.header, VMMDevReq_GetHostTime);
-    Req.time = UINT64_MAX;
-    int rc = VbglR3GRPerform(&Req.header);
-    if (RT_SUCCESS(rc))
-        RTTimeSpecSetMilli(pTime, (int64_t)Req.time);
-    return rc;
-}
-
-
-VBGLR3DECL(int) VbglR3GetMouseStatus(uint32_t *pfFeatures, uint32_t *px, uint32_t *py)
-{
-    VMMDevReqMouseStatus Req;
-    vmmdevInitRequest(&Req.header, VMMDevReq_GetMouseStatus);
-    Req.mouseFeatures = 0;
-    Req.pointerXPos = 0;
-    Req.pointerYPos = 0;
-    int rc = VbglR3GRPerform(&Req.header);
-    if (RT_SUCCESS(rc))
-    {
-        if (pfFeatures)
-            *pfFeatures = Req.mouseFeatures;
-        if (px)
-            *px = Req.pointerXPos;
-        if (py)
-            *py = Req.pointerYPos;
-    }
-    return rc;
-}
-
-
-VBGLR3DECL(int) VbglR3SetMouseStatus(uint32_t fFeatures)
-{
-    VMMDevReqMouseStatus Req;
-    vmmdevInitRequest(&Req.header, VMMDevReq_SetMouseStatus);
-    Req.mouseFeatures = fFeatures;
-    Req.pointerXPos = 0;
-    Req.pointerYPos = 0;
-    return VbglR3GRPerform(&Req.header);
-}
-
-
-/**
- * Cause any pending WaitEvent calls (VBOXGUEST_IOCTL_WAITEVENT) to return
- * with a VERR_INTERRUPTED status.
- *
- * Can be used in combination with a termination flag variable for interrupting
- * event loops. Avoiding race conditions is the responsibility of the caller.
- *
- * @returns IPRT status code
- */
-VBGLR3DECL(int) VbglR3InterruptEventWaits(void)
-{
-    return vbglR3DoIOCtl(VBOXGUEST_IOCTL_WAITEVENT_INTERRUPT_ALL, 0, 0);
-}
-
-
-/**
- * Write to the backdoor logger from ring 3 guest code.
- *
- * @returns IPRT status code
- *
- * @remarks This currently does not accept more than 255 bytes of data at
- *          one time. It should probably be rewritten to use pass a pointer
- *          in the IOCtl.
- */
-VBGLR3DECL(int) VbglR3WriteLog(const char *pch, size_t cb)
-{
-    /*
-     * Solaris does not accept more than 255 bytes of data per ioctl request,
-     * so split large string into 128 byte chunks to prevent truncation.
-     */
-#define STEP 128 /** @todo increase to 512 when solaris ioctl code is fixed. (darwin limits us to 1024 IIRC) */
-    int rc = VINF_SUCCESS;
-    for (size_t off = 0; off < cb && RT_SUCCESS(rc); off += STEP)
-    {
-        size_t cbStep = RT_MIN(cb - off, STEP);
-        rc = vbglR3DoIOCtl(VBOXGUEST_IOCTL_LOG(cbStep), (char *)pch + off, cbStep);
-    }
-#undef STEP
-    return rc;
-}
-
-
-/**
- * Change the IRQ filter mask.
- *
- * @returns IPRT status code
- * @param   fOr     The OR mask.
- * @param   fNo     The NOT mask.
- */
-VBGLR3DECL(int) VbglR3CtlFilterMask(uint32_t fOr, uint32_t fNot)
-{
-    VBoxGuestFilterMaskInfo Info;
-    Info.u32OrMask = fOr;
-    Info.u32NotMask = fNot;
-    return vbglR3DoIOCtl(VBOXGUEST_IOCTL_CTL_FILTER_MASK, &Info, sizeof(Info));
-}
-