Changeset 77825 in vbox for trunk/src/VBox/Runtime/r3/fileio.cpp

Timestamp:

Mar 21, 2019 12:33:42 PM (6 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

129505

Message:

IPRT: Split RTFileCopyEx and RTFileCopyByHandlesEx out of r3/fileio.cpp so we can do platform specific implementations of these. bugref:9172

File:

• trunk/src/VBox/Runtime/r3/fileio.cpp (modified) (1 diff)

trunk/src/VBox/Runtime/r3/fileio.cpp

@@ -240 +240 @@
 {
     return RTFileCopyByHandlesEx(FileSrc, FileDst, NULL, NULL);
-}
-
-
-RTDECL(int) RTFileCopyEx(const char *pszSrc, const char *pszDst, uint32_t fFlags, PFNRTPROGRESS pfnProgress, void *pvUser)
-{
-    /*
-     * Validate input.
-     */
-    AssertMsgReturn(VALID_PTR(pszSrc), ("pszSrc=%p\n", pszSrc), VERR_INVALID_PARAMETER);
-    AssertMsgReturn(*pszSrc, ("pszSrc=%p\n", pszSrc), VERR_INVALID_PARAMETER);
-    AssertMsgReturn(VALID_PTR(pszDst), ("pszDst=%p\n", pszDst), VERR_INVALID_PARAMETER);
-    AssertMsgReturn(*pszDst, ("pszDst=%p\n", pszDst), VERR_INVALID_PARAMETER);
-    AssertMsgReturn(!pfnProgress || VALID_PTR(pfnProgress), ("pfnProgress=%p\n", pfnProgress), VERR_INVALID_PARAMETER);
-    AssertMsgReturn(!(fFlags & ~RTFILECOPY_FLAGS_MASK), ("%#x\n", fFlags), VERR_INVALID_PARAMETER);
-
-    /*
-     * Open the files.
-     */
-    RTFILE FileSrc;
-    int rc = RTFileOpen(&FileSrc, pszSrc,
-                        RTFILE_O_READ | RTFILE_O_OPEN
-                        | (fFlags & RTFILECOPY_FLAGS_NO_SRC_DENY_WRITE ? RTFILE_O_DENY_NONE : RTFILE_O_DENY_WRITE));
-    if (RT_SUCCESS(rc))
-    {
-        RTFILE FileDst;
-        rc = RTFileOpen(&FileDst, pszDst,
-                        RTFILE_O_WRITE | RTFILE_O_CREATE
-                        | (fFlags & RTFILECOPY_FLAGS_NO_DST_DENY_WRITE ? RTFILE_O_DENY_NONE : RTFILE_O_DENY_WRITE));
-        if (RT_SUCCESS(rc))
-        {
-            /*
-             * Call the ByHandles version and let it do the job.
-             */
-            rc = RTFileCopyByHandlesEx(FileSrc, FileDst, pfnProgress, pvUser);
-
-            /*
-             * Close the files regardless of the result.
-             * Don't bother cleaning up or anything like that.
-             */
-            int rc2 = RTFileClose(FileDst);
-            AssertRC(rc2);
-            if (RT_FAILURE(rc2) && RT_SUCCESS(rc))
-                rc = rc2;
-        }
-
-        int rc2 = RTFileClose(FileSrc);
-        AssertRC(rc2);
-        if (RT_FAILURE(rc2) && RT_SUCCESS(rc))
-            rc = rc2;
-    }
-    return rc;
-}
-
-
-RTDECL(int) RTFileCopyByHandlesEx(RTFILE FileSrc, RTFILE FileDst, PFNRTPROGRESS pfnProgress, void *pvUser)
-{
-    /*
-     * Validate input.
-     */
-    AssertMsgReturn(RTFileIsValid(FileSrc), ("FileSrc=%RTfile\n", FileSrc), VERR_INVALID_PARAMETER);
-    AssertMsgReturn(RTFileIsValid(FileDst), ("FileDst=%RTfile\n", FileDst), VERR_INVALID_PARAMETER);
-    AssertMsgReturn(!pfnProgress || VALID_PTR(pfnProgress), ("pfnProgress=%p\n", pfnProgress), VERR_INVALID_PARAMETER);
-
-    /*
-     * Save file offset.
-     */
-    RTFOFF offSrcSaved;
-    int rc = RTFileSeek(FileSrc, 0, RTFILE_SEEK_CURRENT, (uint64_t *)&offSrcSaved);
-    if (RT_FAILURE(rc))
-        return rc;
-
-    /*
-     * Get the file size.
-     */
-    RTFOFF cbSrc;
-    rc = RTFileSeek(FileSrc, 0, RTFILE_SEEK_END, (uint64_t *)&cbSrc);
-    if (RT_FAILURE(rc))
-        return rc;
-
-    /*
-     * Allocate buffer.
-     */
-    size_t      cbBuf;
-    uint8_t    *pbBufFree = NULL;
-    uint8_t    *pbBuf;
-    if (cbSrc < _512K)
-    {
-        cbBuf = 8*_1K;
-        pbBuf = (uint8_t *)alloca(cbBuf);
-    }
-    else
-    {
-        cbBuf = _128K;
-        pbBuf = pbBufFree = (uint8_t *)RTMemTmpAlloc(cbBuf);
-    }
-    if (pbBuf)
-    {
-        /*
-         * Seek to the start of each file
-         * and set the size of the destination file.
-         */
-        rc = RTFileSeek(FileSrc, 0, RTFILE_SEEK_BEGIN, NULL);
-        if (RT_SUCCESS(rc))
-        {
-            rc = RTFileSeek(FileDst, 0, RTFILE_SEEK_BEGIN, NULL);
-            if (RT_SUCCESS(rc))
-                rc = RTFileSetSize(FileDst, cbSrc);
-            if (RT_SUCCESS(rc) && pfnProgress)
-                rc = pfnProgress(0, pvUser);
-            if (RT_SUCCESS(rc))
-            {
-                /*
-                 * Copy loop.
-                 */
-                unsigned    uPercentage = 0;
-                RTFOFF      off = 0;
-                RTFOFF      cbPercent = cbSrc / 100;
-                RTFOFF      offNextPercent = cbPercent;
-                while (off < cbSrc)
-                {
-                    /* copy block */
-                    RTFOFF cbLeft = cbSrc - off;
-                    size_t cbBlock = cbLeft >= (RTFOFF)cbBuf ? cbBuf : (size_t)cbLeft;
-                    rc = RTFileRead(FileSrc, pbBuf, cbBlock, NULL);
-                    if (RT_FAILURE(rc))
-                        break;
-                    rc = RTFileWrite(FileDst, pbBuf, cbBlock, NULL);
-                    if (RT_FAILURE(rc))
-                        break;
-
-                    /* advance */
-                    off += cbBlock;
-                    if (pfnProgress && offNextPercent < off && uPercentage < 100)
-                    {
-                        do
-                        {
-                            uPercentage++;
-                            offNextPercent += cbPercent;
-                        } while (offNextPercent < off && uPercentage < 100);
-                        rc = pfnProgress(uPercentage, pvUser);
-                        if (RT_FAILURE(rc))
-                            break;
-                    }
-                }
-
-#if 0
-                /*
-                 * Copy OS specific data (EAs and stuff).
-                 */
-                rtFileCopyOSStuff(FileSrc, FileDst);
-#endif
-
-                /* 100% */
-                if (pfnProgress && uPercentage < 100 && RT_SUCCESS(rc))
-                    rc = pfnProgress(100, pvUser);
-            }
-        }
-        RTMemTmpFree(pbBufFree);
-    }
-    else
-        rc = VERR_NO_MEMORY;
-
-    /*
-     * Restore source position.
-     */
-    RTFileSeek(FileSrc, offSrcSaved, RTFILE_SEEK_BEGIN, NULL);
-
-    return rc;
 }