示例#1
0
    void testIO(unsigned nr, SocketEndpoint *ep)
    {
        IFile *ifile;
        IFileIO *ifileio;
        unsigned fsize = (unsigned)(((double)nr * (double)rs) / (1024.0 * 1024.0));

        fflush(NULL);
        fprintf(stdout,"\n");
        fflush(NULL);

        for(int j=0; j<2; j++)
        {
            if (j==0)
                fprintf(stdout, "File size: %d (MB) Cache, ", fsize);
            else
                fprintf(stdout, "\nFile size: %d (MB) Nocache, ", fsize);

            if (ep != NULL)
            {
                ifile = createRemoteFile(*ep, tmpfile);
                fprintf(stdout, "Remote: (%s)\n", server.toCharArray());
            }
            else
            {
                ifile = createIFile(tmpfile);
                fprintf(stdout, "Local:\n");
            }

            ifile->remove();

            unsigned st = msTick();

            IFEflags extraFlags = IFEcache;
            if (j==1)
                extraFlags = IFEnocache;
            ifileio = ifile->open(IFOcreate, extraFlags);

            unsigned iter = nr / 40;

            __int64 pos = 0;
            for (int i=0;i<nr;i++)
            {
                ifileio->write(pos, rs, record);
                pos += rs;
                if ((i % iter) == 0)
                {
                    fprintf(stdout,".");
                    fflush(NULL);
                }
            }

            ifileio->close();

            double rsec = (double)(msTick() - st)/1000.0;
            unsigned iorate = (unsigned)((double)fsize / rsec);

            fprintf(stdout, "\nwrite - elapsed time = %6.2f (s) iorate = %4d (MB/s)\n", rsec, iorate);

            st = msTick();

            extraFlags = IFEcache;
            if (j==1)
                extraFlags = IFEnocache;
            ifileio = ifile->open(IFOread, extraFlags);

            pos = 0;
            for (int i=0;i<nr;i++)
            {
                ifileio->read(pos, rs, record);
                pos += rs;
                if ((i % iter) == 0)
                {
                    fprintf(stdout,".");
                    fflush(NULL);
                }
            }

            ifileio->close();

            rsec = (double)(msTick() - st)/1000.0;
            iorate = (unsigned)((double)fsize / rsec);

            fprintf(stdout, "\nread -- elapsed time = %6.2f (s) iorate = %4d (MB/s)\n", rsec, iorate);

            ifileio->Release();
            ifile->remove();
            ifile->Release();
        }
    }
示例#2
0
void copyCompress(const char *from, const char *to, size32_t rowsize, bool fast, bool flzstrm, bool stats)
{
    Owned<IFile> srcfile = createIFile(from);
    Owned<IFileIO> baseio = srcfile->open(IFOread);
    if (!baseio) {
        printf("ERROR: could not open '%s' for read\n",from);
        doexit(3);
    }
    Owned<ICompressedFileIO> cmpio = createCompressedFileReader(baseio);
    Owned<IFileIOStream>  flzstrmsrc = cmpio?NULL:createFastLZStreamRead(baseio);
    bool plaincopy = false;
    IFileIO *srcio = NULL;
    if (cmpio) {
        srcio = cmpio;
        if (rowsize&&(cmpio->recordSize()==rowsize))
            plaincopy = true;
        else if (!rowsize) {
            if (fast&&(cmpio->method()==COMPRESS_METHOD_FASTLZ))
                plaincopy = true;
            else if (!fast&&(cmpio->method()==COMPRESS_METHOD_LZW))
                plaincopy = true;
        }
    }
    else if (flzstrmsrc) {
        if (flzstrm)
            plaincopy = true;
    }
    else
        srcio = baseio; 
    if (plaincopy) {
        cmpio.clear();
        srcio = baseio.get(); 
    }
    Owned<IFile> dstfile = createIFile(to);
    StringBuffer fulldst;
    if (dstfile->isDirectory()==foundYes) {
        dstfile.clear();
        addPathSepChar(fulldst.append(to)).append(pathTail(from));
        to = fulldst.str();
        dstfile.setown(createIFile(to));
    }

    if (dstfile->exists()) {
        printf("ERROR: file '%s' already exists\n",to);
        doexit(4);
    }
    unsigned start;
    unsigned startu;
    if (stats) {
         start = msTick();
         startu = usTick();
    }
    Owned<IFileIO> dstio;
    Owned<IFileIOStream>  flzstrmdst;
    if (plaincopy||flzstrm) {
        dstio.setown(dstfile->open(IFOcreate));
        if (dstio&&!plaincopy)
            flzstrmdst.setown(createFastLZStreamWrite(dstio));
    }
    else 
        dstio.setown(createCompressedFileWriter(dstfile,rowsize,false,true,NULL,fast));

    if (!dstio) {
        printf("ERROR: could not open '%s' for write\n",to);
        doexit(5);
    }
#ifdef __linux__
    // this is not really needed in windows - if it is we will have to
    // test the file extension - .exe, .bat

    struct stat info;
    if (stat(from, &info) == 0)  // cannot fail - exception would have been thrown above
        dstfile->setCreateFlags(info.st_mode&(S_IRUSR|S_IRGRP|S_IROTH|S_IWUSR|S_IWGRP|S_IWOTH|S_IXUSR|S_IXGRP|S_IXOTH));
#endif
    MemoryAttr mb;
    void * buffer = mb.allocate(BUFFERSIZE);

    offset_t offset = 0;
    try
    {
        loop {
            size32_t got = cmpio.get()?cmpio->read(offset, BUFFERSIZE, buffer):srcio->read(offset, BUFFERSIZE, buffer);
            if (got == 0)
                break;
            if (flzstrmdst)
                flzstrmdst->write(got,buffer);
            else
                dstio->write(offset, got, buffer);
            offset += got;
        }
    }
    catch (IException *e)
    {
        // try to delete partial copy
        dstio.clear();
        try {
            dstfile->remove();
        }
        catch (IException *e2) {
            StringBuffer s;
            pexception(s.clear().append("Removing partial copy file: ").append(to).str(),e2);
            e2->Release();
        }
        throw e;
    }
    flzstrmdst.clear();
    dstio.clear();
    if (stats) 
        printStats(offset,start,startu);
    CDateTime createTime, modifiedTime;
    if (srcfile->getTime(&createTime, &modifiedTime, NULL))
        dstfile->setTime(&createTime, &modifiedTime, NULL);
    printf("copied %s to %s%s\n",from,to,plaincopy?"":" compressing");
    { // print details 
        dstio.setown(dstfile->open(IFOread));
        if (dstio) {
            Owned<ICompressedFileIO> cmpio = createCompressedFileReader(dstio);
            Owned<IFileIOStream>  flzstrm = cmpio?NULL:createFastLZStreamRead(dstio);
            if (cmpio||flzstrm) 
                printCompDetails(to,dstio,cmpio,flzstrm);
            else 
                printf("destination %s not compressed\n",to);
        }
        else
            printf("destination %s could not be read\n",to);
    }
}