operating system - Difference between message queues and mailboxes -

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in operating system difference between message queues , mailboxes.

i suspect there no universally accepted definition makes message queue versus mailbox. each rtos may use different terminology , implementation details you'd have @ each rtos individually.

generally speaking of common differences include:

  • is size of messages sent through queue/mailbox fixed or can message size vary?
  • does queue/mailbox hold reference message or copy of message?
  • can queue/mailbox hold 1 message, multiple messages, or unlimited messages?

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