@spec arguments(
  %Edeliver.Relup.Instructions{
    changed_modules: term(),
    down_instructions: term(),
    down_version: term(),
    up_instructions: term(),
    up_version: term()
  },
  Edeliver.Relup.Config.t()
) :: term()

Returns name of the application.

This name is taken as argument for the run/1 function and is required to access the acceptor processes through the supervision tree

@spec bulk_resume(processes :: [pid()], timeout :: pos_integer() | :infinity) ::
  :ok
  | {:errors, count :: pos_integer(), [{pid :: pid(), reason :: term()}]}
  | :not_supported

Resumes a list of processes.

Because resume a process might take a while depending on the length of the message queue or duration of current operation processed by the pid, suspending is done asynchronously for each process by spawning a new process which calls :sys.resume/2 and then waiting for all results before returning from this function. Be careful when using :infinity as timeout, because this function might hang for infinite time if one of the process does not handle sys events.

@spec call_this(arguments :: [term()]) ::
  Instruction.instruction() | Instruction.instructions()

Calls the run/1 function of this module

from the relup file during hot code upgrade

@spec dependencies() :: [instruction_module :: atom()]

@spec dependencies() :: [Edeliver.Relup.Instructions.CheckRanchAcceptors]

This module depends on the Edeliver.Relup.Instructions.CheckRanchAcceptors and the Edeliver.Relup.Instructions.CheckRanchConnections module

which must be loaded before this instruction for upgrades and unloaded after this instruction for downgrades.

@spec insert_where() :: Instruction.insert_fun()

Callback implementation for Edeliver.Relup.RunnableInstruction.insert_where/0.

Callback implementation for Edeliver.Relup.Instruction.modify_relup/2.

@spec run(otp_application_name :: atom()) :: :ok

Resumes all websocket channels

to continue handling channel events after the upgrade. This is possible only in recent phoenix versions since handling sys events is required for resuming. If an older version is used, a warning is printed that suspending is not supported.