CODEWITHSUNDEEP
c++jsonjsonserializerrapidjsonjson-serialization
manjuv
manjuv

Reputation: 335

Write Access Violation when Serializing rapidjson::GenericDocument with PrettyWriter to GenericStringBuffer

I am working with RapidJSON and trying to serialize a rapidjson::GenericDocument object using rapidjson::PrettyWriter to a rapidjson::GenericStringBuffer. Here is the relevant part of my code:

typedef rapidjson::GenericDocument<rapidjson::UTF16<> > WDocument;
typedef rapidjson::GenericStringBuffer<rapidjson::UTF16<> > WStringBuffer;

WStringBuffer buffer;
PrettyWriter<WStringBuffer, WDocument::EncodingType> writer(buffer);
doc.Accept(writer);

While writing to the buffer(using Accept method), I am encountering a "Write Access Violation" exception. Upon debugging, I observed that the violation is caused because the stack_ (which RapidJSON uses to store the strings) of the string buffer is null.

StringBuffer stack_ null

call stack

From my understanding, this stack_ should dynamically expand depending on the data being written to the buffer. The only reason for this stack_ to be null should be a memory allocation failure.

However, the process running this code is a 32-bit process, and the maximum memory it consumed, as observed in Task Manager, is about 800 MB (which is less than the memory available for the process).

I found an issue on GitHub (835), related to stack_. This seems to be similar to the problem I am facing.

I am unable to figure out the reason for this failure and have been stuck on this for a long time. Any help or insights would be greatly appreciated.

Upvotes: 0

Views: 71

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