Mailbox_server
APIs for mailbox server. More...
Functions |
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EmberAfMailboxStatus | emberAfPluginMailboxServerAddMessage ( EmberNodeId destination, uint8_t *message, EmberMessageLength messageLength, uint8_t tag, bool useSecurity) |
Add a message to the mailbox server queue. The message is stored in the internal queue until the destination node queries the mailbox server node for messages or upon timeout.
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Callbacks |
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void | emberAfPluginMailboxServerMessageDeliveredCallback ( EmberAfMailboxStatus status, EmberNodeId messageDestination, uint8_t tag) |
Mailbox Server Message Delivered Callback.
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Detailed Description
APIs for mailbox server.
Mailbox protocol is designed for devices that can't be online on the network all the time. The most common example for this is a sleepy end device.
Mailbox clients and the server can submit messages into the mailbox, which is stored in RAM on the mailbox server. Clients can then query the mailbox server for available messages.
The mailbox server will notify clients who submit messages when a message was delivered or when it couldn't be delivered due to an error.
Mailbox uses a plugin configurable protocol endpoint, which is 15 by default.
The server can also configure the size of the mailbox (in number of packets, 25 by default) and the packet timeout, after which the server drops the message and notifies the source of the error.
The mailbox protocol uses standard data messages, so in case of sleepy end devices, it will use the indirect queue. This means that if a sleepy end device sends a request to a mailbox server, the end device should poll for the response.
- Note
- Mailbox is not available in MAC mode due to the lack of endpoints.
See
mailbox-server.h
and mailbox-server.c for source code.
Function Documentation
◆ emberAfPluginMailboxServerAddMessage()
EmberAfMailboxStatus emberAfPluginMailboxServerAddMessage | ( | EmberNodeId |
destination,
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uint8_t * |
message,
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EmberMessageLength |
messageLength,
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uint8_t |
tag,
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bool |
useSecurity
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) |
Add a message to the mailbox server queue. The message is stored in the internal queue until the destination node queries the mailbox server node for messages or upon timeout.
- Parameters
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[in] destination
The node ID of the destination for this data message. [in] message
A pointer to the message to be enqueued. [in] messageLength
The length in bytes of the message to be enqueued. [in] tag
A tag value which will be returned in the corresponding emberAfPluginMailboxServerMessageDeliveredCallback() callback. The application can use to match the callbacks with the call. [in] useSecurity
Set it true if the data message should be sent to the server using security.
- Returns
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An
EmberAfMailboxStatus
value of:
- EMBER_MAILBOX_STATUS_SUCCESS if the message was successfully added to the packet queue.
- EMBER_MAILBOX_STATUS_INVALID_CALL if the passed message is invalid.
- EMBER_MAILBOX_STATUS_INVALID_ADDRESS if the passed destination address is invalid.
- EMBER_MAILBOX_STATUS_MESSAGE_TOO_LONG if the payload size of the passed message exceeds the maximum allowable payload for the passed transmission options.
- EMBER_MAILBOX_STATUS_MESSAGE_TABLE_FULL if the packet table is already full.
- EMBER_MAILBOX_STATUS_MESSAGE_NO_BUFFERS if not enough memory buffers are available for storing the message content.
◆ emberAfPluginMailboxServerMessageDeliveredCallback()
void emberAfPluginMailboxServerMessageDeliveredCallback | ( | EmberAfMailboxStatus |
status,
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EmberNodeId |
messageDestination,
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uint8_t |
tag
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) |
Mailbox Server Message Delivered Callback.
This callback is invoked at the server when a message submitted locally by the server was successfully delivered or when it timed-out.
- Parameters
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[in] status
An EmberAfMailboxStatus value of: - EMBER_MAILBOX_STATUS_SUCCESS indicates that the message was successfully delivered to the final destination.
- EMBER_MAILBOX_STATUS_MESSAGE_TIMED_OUT indicates that the message timed-out and was removed from the server queue.
[in] messageDestination
The node ID of the destination. [in] tag
The tag value passed in the emberAfPluginMailboxServerAddMessage() API.