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Posted to notifications@mynewt.apache.org by "Christopher Collins (JIRA)" <ji...@apache.org> on 2017/06/22 20:24:00 UTC
[jira] [Updated] (MYNEWT-790) syscfg - Allow a package to override
its own setting
[ https://issues.apache.org/jira/browse/MYNEWT-790?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Christopher Collins updated MYNEWT-790:
---------------------------------------
Description:
(Pull request: https://github.com/apache/incubator-mynewt-newt/pull/74)
PKG-A can only override a setting defined by PKG-B if PKG-A has a greater priority than PKG-B. If PKG-A's priority is less than or equal to PKG-B's, the override attempt is rejected and reported as a priority violation.
This commit relaxes that rule slightly: a package can override settings that it itself defines.
This behavior is needed for making a setting's default value conditional on another setting. For example:
{noformat}
syscfg.defs:
TIMER_0:
description: 'NRF52 Timer 0'
value: 1
TIMER_3:
description: 'NRF52 Timer 3'
value: 0
# Use timer 3 instead of timer 0 if target wants to use the low
# power clock.
syscfg.vals.BLE_LP_CLOCK:
TIMER_0: 0
TIMER_3: 1
{noformat}
was:
(Pull request: https://github.com/apache/incubator-mynewt-newt/pull/74)
PKG-A can only override a setting defined by PKG-B if PKG-A has a greater priority than PKG-B. If PKG-A's priority is less than or equal to PKG-B's, the override attempt is rejected and reported as a priority violation.
This commit relaxes that rule slightly: a package can override settings that it itself defines.
This behavior is needed for making a setting's default value conditional on another setting. For example:
{noformat}
syscfg.defs:
TIMER_0:
description: 'NRF52 Timer 0'
value: 1
TIMER_3:
description: 'NRF52 Timer 3'
value: 0
# Use timer 3 instead of timer 0 if target wants to use the low
# power clock.
syscfg.vals.BLE_LP_CLOCK:
TIMER_0: 0
TIMER_1: 1
{noformat}
> syscfg - Allow a package to override its own setting
> -----------------------------------------------------
>
> Key: MYNEWT-790
> URL: https://issues.apache.org/jira/browse/MYNEWT-790
> Project: Mynewt
> Issue Type: Bug
> Security Level: Public(Viewable by anyone)
> Components: Newt
> Reporter: Christopher Collins
> Assignee: Christopher Collins
> Labels: doc
> Fix For: v1_1_0_rel
>
>
> (Pull request: https://github.com/apache/incubator-mynewt-newt/pull/74)
> PKG-A can only override a setting defined by PKG-B if PKG-A has a greater priority than PKG-B. If PKG-A's priority is less than or equal to PKG-B's, the override attempt is rejected and reported as a priority violation.
> This commit relaxes that rule slightly: a package can override settings that it itself defines.
> This behavior is needed for making a setting's default value conditional on another setting. For example:
> {noformat}
> syscfg.defs:
> TIMER_0:
> description: 'NRF52 Timer 0'
> value: 1
> TIMER_3:
> description: 'NRF52 Timer 3'
> value: 0
> # Use timer 3 instead of timer 0 if target wants to use the low
> # power clock.
> syscfg.vals.BLE_LP_CLOCK:
> TIMER_0: 0
> TIMER_3: 1
> {noformat}
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