How the canister id is generated

xiaohuangniuu · January 11, 2022, 8:03am

There are similar questions here, but no one is answering them.

So,Can you find the rules for subnet ID allocation? I need help.

xiaohuangniuu · January 11, 2022, 10:57am

Here I found out how to generate canisterid

dfinity/ic/blob/89446f5a04f053040b4863eab5458446d925ed0e/rs/execution_environment/src/canister_manager.rs#L1265

    
      
                      self.log,
                      "Subnet is full.  Total allowed is {} and generated_count is {}",
                      canister_id_ranges.total_count(),
                      state.metadata.generated_id_counter
                  );
                  return Err(CanisterManagerError::SubnetOutOfCanisterIds {
                      allowed: canister_id_ranges.total_count(),
                  });
              }
              let canister_id = canister_id_ranges.locate(state.metadata.generated_id_counter);
              state.metadata.generated_id_counter += 1;
              Ok(canister_id)
          }
          
          
fn validate_canister_exists<'a>(
              &self,
              state: &'a ReplicatedState,
              canister_id: CanisterId,
          ) -> Result<&'a CanisterState, CanisterManagerError> {
              state
                  .canister_state(&canister_id)

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How the canister id is generated

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