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C++ DataWriter::nextBatch方法代码示例

本文整理汇总了C++中DataWriter::nextBatch方法的典型用法代码示例。如果您正苦于以下问题:C++ DataWriter::nextBatch方法的具体用法?C++ DataWriter::nextBatch怎么用?C++ DataWriter::nextBatch使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在DataWriter的用法示例。


在下文中一共展示了DataWriter::nextBatch方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: while

    bool
SimpleReadWriter::writeHeader(
    const ReaderContext& context,
    bool sorted,
    int argc,
    const char **argv,
    const char *version,
    const char *rgLine,
	bool omitSQLines)
{
    char* buffer;
    size_t size;
    size_t used;

    char *localBuffer = NULL;

	writer->inHeader(true);
    if (! writer->getBuffer(&buffer, &size)) {
        return false;
    }

    char *writerBuffer = buffer;
    size_t writerBufferSize = size;

	while (!format->writeHeader(context, buffer, size, &used, sorted, argc, argv, version, rgLine, omitSQLines)) {
        delete[] localBuffer;
        size = 2 * size;
        localBuffer = new char[size];
        buffer = localBuffer;
    }

    if (NULL == localBuffer) {
        _ASSERT(writerBuffer == buffer);
        writer->advance((unsigned)used, 0);
        writer->nextBatch();
    } else {
        size_t bytesRemainingToWrite = used;
        size_t bytesWritten = 0;
        while (bytesRemainingToWrite > 0) {
            size_t bytesToWrite = __min(bytesRemainingToWrite, writerBufferSize);
            memcpy(writerBuffer, localBuffer + bytesWritten, bytesToWrite);
            writer->advance(bytesToWrite);
            writer->nextBatch();
            if (!writer->getBuffer(&writerBuffer, &writerBufferSize)) {
                return false;
            }
            bytesWritten += bytesToWrite;
            bytesRemainingToWrite -= bytesToWrite;
        }

        delete[] localBuffer;
    }

	writer->inHeader(false);
    return true;
}
开发者ID:CoREse,项目名称:snap,代码行数:56,代码来源:ReadWriter.cpp

示例2: WriteErrorMessage

    void
GzipWriterFilterSupplier::onClosing(
    DataWriterSupplier* supplier)
{
    if (bamFormat) {
        closing = true;
        DataWriter* writer = supplier->getWriter();
        // write empty block as BAM end of file marker
        static _uint8 eof[] = {
            0x1f, 0x8b, 0x08, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x06, 0x00, 0x42, 0x43,
            0x02, 0x00, 0x1b, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
        };
        char* buffer;
        size_t bytes;
        if (! (writer->getBuffer(&buffer, &bytes) && bytes >= sizeof(eof))) {
            WriteErrorMessage("no space to write eof marker\n");
            soft_exit(1);
        }
        memcpy(buffer, eof, sizeof(eof));
        writer->advance(sizeof(eof));

        // add final translation for last empty block
        writer->nextBatch();
        char* ignore;
        pair<_uint64,_uint64> last;
        size_t used;
        writer->getBatch(-1, &ignore, NULL, &used, (size_t*) &last.second, NULL, (size_t*) &last.first);
        last.second += used;
        translation.push_back(last);

        writer->close();
        delete writer;
    }

    // sort translations
    std::sort(translation.begin(), translation.end(), translationComparator);
}
开发者ID:CoREse,项目名称:snap,代码行数:37,代码来源:GzipDataWriter.cpp


注:本文中的DataWriter::nextBatch方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。