THotPDF.GetLastParserArenaStatistics

返回最近一次 PDF 加载所用的短生命周期解析器存储的分配与复用诊断信息

声明

function GetLastParserArenaStatistics(
  out Statistics: THPDFParserArenaStatistics): boolean;

返回值

解析器 arena 可用期间返回 True，包括首次加载之前所有流量计数器都为零的时候

统计

• BlockSize、RetainedBlockCount 和 RetainedBytes 描述 THotPDF 实例为复用而保留的存储
• PeakUsedBytes, AllocationCount，以及 BytesRequested describe scratch demand during the most recent load
• BlockAllocationCount counts newly allocated blocks, while ReusedAllocationCount counts allocations served from retained storage
• ResetCount identifies a completed load-session reset, TokenCount counts arena-backed tokens, and TemporaryObjectElisionCount counts dictionary-key name objects avoided by direct parsing

Lifetime

The arena stores only transient parser bytes; returned PDF objects, dictionary names, stream data, and other persistent values own their storage independently

另请参阅： 可扩展加载, LoadFromStream, LoadFromRandomAccessSource