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kripken avatar kripken commented on August 15, 2024 1

The integer here is a pointer - it is the location in memory. So you would normally write patterns like

var pointer = Module._malloc(1024);
// use the buffer pointed to by "pointer", addresses [pointer, pointer + 1024)
Module._free(pointer);

from box2d.js.

kripken avatar kripken commented on August 15, 2024

That malloc probably should be freed - I'm not sure what the individual frees in the loop are doing, but there should just be a single free when dataPtr is no longer used.

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SneakyFernando avatar SneakyFernando commented on August 15, 2024

In C++ free() uses actual pointer to release memory, but Box2D._malloc() returns integer value, not pointer. Should I parse it maybe?
I have divided Float32Array into n memory blocks and tried to free each in this loop by parsing integer offset with b2Vec2 size.. Is there a way to somehow free whole Float32Array?
If not, please provide me with proper examples of how should I dynamically reset vertices of polygon shape.

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SneakyFernando avatar SneakyFernando commented on August 15, 2024

I have found that freeing by integer pointer like you have explained will actually get work done.

from box2d.js.

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