junobuild_shared::canister

Function memory_size

Source 
pub fn memory_size() -> MemorySize
Expand description

Returns the current memory usage of the WebAssembly module.

This function calculates the memory size allocated for both the heap and the stable storage by querying the WebAssembly system interface and the Internet Computer’s stable storage API.

§Returns

A MemorySize struct containing two fields:

  • heap: The total size of the WebAssembly module’s heap memory in bytes.
  • stable: The total size of the stable storage used by the module in bytes.

Both sizes are calculated based on the WebAssembly page size.

§Example

let memory_usage = junobuild_shared::canister::memory_size();
println!("Heap size: {} bytes", memory_usage.heap);
println!("Stable storage size: {} bytes", memory_usage.stable);