2019-02-19 00:47:34 +01:00
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#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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menuconfig SYSTEM_PSMQ
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2019-10-06 14:14:39 +02:00
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tristate "psmq"
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2019-02-19 00:47:34 +01:00
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default n
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depends on !DISABLE_MQUEUE && SYSTEM_EMBEDLOG
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---help---
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psmq is tool set which allows IPC communication in publish/subscribe way
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created on top of posix messege queue. Full documentation is available
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at: https://psmq.kurwinet.pl (despite the domain, it is in english).
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Library is licensed under BSD 2-clause license. See LICENSE file in
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the downloaded code for license details.
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if SYSTEM_PSMQ
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config PSMQ_MAX_CLIENTS
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int "Max number of clients"
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default 8
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---help---
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This defines how many clients single broker process will
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support. Broker will return error for clients that want to
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register to it and there are already max clients connected. psmqd
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2020-02-23 05:51:44 +01:00
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will allocate client array with static storage duration that is
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2019-02-19 00:47:34 +01:00
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about 12 bytes (may vary depending on architecture) for each
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client.
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config PSMQ_PAYLOAD_MAX
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int "Max size of payload"
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default 8
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---help---
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Defines maximum size of payload that can be sent via psmq.
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Both PSMQ_TOPIC_MAX and PSMQ_PAYLOAD_MAX have direct impact on size
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of internal message structures that are copied each time message
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is sent. If you set PSMQ_PAYLOAD_MAX to, let's say 20, and you are
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sending message with payload that takes only 2 byte, then 20 bytes
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will get copied anyway. Same rule applies to topics.
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config PSMQ_TOPIC_MAX
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int "Max length of topic"
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default 15
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---help---
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Defines maximum length any topic can be. That includes first ´/´
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character, but does not include terminating null character. So
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if this is set to 3, then topics "/0", "/01" will be valid, but
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"/012" will be too long.
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Library will use PSMQ_TOPIC_MAX + 1 as an array size for topic.
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2020-02-22 19:52:12 +01:00
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This means, to prevent unnecessary paddings, use values like 7, or 15
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2019-02-19 00:47:34 +01:00
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or 31.
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config PSMQD_PRIORITY
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int "psmqd broker task priority"
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default 100
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config PSMQD_STACKSIZE
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int "psmqd broker stack size"
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default 2048
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config PSMQ_TOOLS_PUB
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bool "Enable psmq_pub tool"
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default n
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---help---
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Enables program which allows to publish message over psmq directly
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from command line.
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if PSMQ_TOOLS_PUB
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config PSMQ_PUB_PRIORITY
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int "psmq_pub broker task priority"
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default 100
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config PSMQ_PUB_STACKSIZE
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int "psmq_pub broker stack size"
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default 2048
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endif # PSMQ_TOOLS_PUB
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config PSMQ_TOOLS_SUB
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bool "Enable psmq_sub tool"
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default n
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---help---
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Enables program which allows to listen to published messages on
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chosen topics. It also has capabilities to log these messages to
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a chosen file.
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if PSMQ_TOOLS_SUB
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config PSMQ_SUB_PRIORITY
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int "psmq_sub broker task priority"
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default 100
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config PSMQ_SUB_STACKSIZE
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int "psmq_sub broker stack size"
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default 2048
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endif # PSMQ_TOOLS_SUB
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endif # SYSTEM_PSMQ
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