rapidjson使用问题小计

最新推荐文章于 2023-12-05 14:42:01 发布

原创最新推荐文章于 2023-12-05 14:42:01 发布 · 2.3k 阅读

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探讨了在使用RapidJSON库时，尝试对同一个`rapidjson::Writer`实例多次调用`Accept`方法导致程序崩溃的问题。通过分析错误日志，指出了问题可能的原因在于多次初始化对象。

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rapidjson::StringBuffer buffer;

rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);

rapidjson::Document bid_response;
bid_response.SetObject();

......

对多个json value或document 多次使用 bid_response.Accept(writer) ,writer值声明定义了一个会导致程序core:

#0 0x00007f05a0412625 in raise () from /lib64/libc.so.6
#1 0x00007f05a0413e05 in abort () from /lib64/libc.so.6
#2 0x00007f05a040b74e in __assert_fail_base () from /lib64/libc.so.6
#3 0x00007f05a040b810 in __assert_fail () from /lib64/libc.so.6
#4 0x0000000001352821 in rapidjson::Writer<rapidjson::GenericStringBuffer<rapidjson::UTF8<char>, rapidjson::CrtAllocator>, rapidjson::UTF8<char>, rapidjson::UTF8<char>, rapidjson::CrtAllocator>::Prefix (
this=0x7f0558028380, type=rapidjson::kObjectType) at netgo/thirdparty/rapidjson-1.0.2/include/rapidjson/writer.h:332
#5 0x000000000134e472 in rapidjson::Writer<rapidjson::GenericStringBuffer<rapidjson::UTF8<char>, rapidjson::CrtAllocator>, rapidjson::UTF8<char>, rapidjson::UTF8<char>, rapidjson::CrtAllocator>::StartObject (
this=0x7f0558028380) at netgo/thirdparty/rapidjson-1.0.2/include/rapidjson/writer.h:135
#6 0x000000000134b09b in rapidjson::GenericValue<rapidjson::UTF8<char>, rapidjson::MemoryPoolAllocator<rapidjson::CrtAllocator> >::Accept<rapidjson::Writer<rapidjson::GenericStringBuffer<rapidjson::UTF8<char>, rapidjson::CrtAllocator>, rapidjson::UTF8<char>, rapidjson::UTF8<char>, rapidjson::CrtAllocator> > (this=0x7f05580287f0, handler=...) at netgo/thirdparty/rapidjson-1.0.2/include/rapidjson/document.h:1491

rapidjson::Writer<rapidjson::StringBuffer> 不可多次accept? 原因待究。