Function WriteIndex

engine/dlib/src/dlib/http_cache.cpp:328–363

    }

    static Result WriteIndex(HCache cache, FILE* f)
    {
        IndexHeader header;

        header.m_Magic = MAGIC;
        header.m_Version = VERSION;
        header.m_Checksum = 0;
        header.m_SizeOfEntry = (uint32_t)sizeof(Entry);
        header.m_SizeOfFileEntry = (uint32_t)sizeof(FileEntry);
        size_t n_written = fwrite(&header, 1, sizeof(header), f);
        if (n_written != sizeof(header))
        {
            return RESULT_IO_ERROR;
        }
        else
        {
            WriteEntryContext context(f);
            cache->m_CacheTable.Iterate(&WriteEntry, &context);
            if (context.m_Error)
            {
                return RESULT_IO_ERROR;
            }
            else
            {
                // Rewrite header with checksum
                fseek(f, 0, SEEK_SET);
                header.m_Checksum = dmHashFinal64(&context.m_HashState);
                size_t n_written = fwrite(&header, 1, sizeof(header), f);
                if (n_written != sizeof(header))
                {
                    return RESULT_IO_ERROR;
                }
            }
        }
        return RESULT_OK;
    }

    Result Flush(HCache cache)
    {