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pull updates from demo plugin pr

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This commit is contained in:
Jesse Hallam 2018-10-02 14:09:41 -04:00
parent eb2678c625
commit 75eccc0628
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1 changed files with 10 additions and 2 deletions
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12
server/configuration.go
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@ -6,8 +6,7 @@ import (
// configuration captures the plugin's external configuration as exposed in the Mattermost server
// configuration, as well as values computed from the configuration. Any public fields will be
// deserialized from the Mattermost server configuration in OnConfigurationChange, while any
// private fields will be ignored.
// deserialized from the Mattermost server configuration in OnConfigurationChange.
//
// As plugins are inherently concurrent (hooks being called asynchronously), and the plugin
// configuration can change at any time, access to the configuration must be synchronized. The
@ -45,9 +44,18 @@ func (p *Plugin) getConfiguration() *configuration {
// Do not call setConfiguration while holding the configurationLock, as sync.Mutex is not
// reentrant. In particular, avoid using the plugin API entirely, as this may in turn trigger a
// hook back into the plugin. If that hook attempts to acquire this lock, a deadlock may occur.
//
// This method panics if setConfiguration is called with the existing configuration. This almost
// certainly means that the configuration was modified without being cloned and may result in
// an unsafe access.
func (p *Plugin) setConfiguration(configuration *configuration) {
p.configurationLock.Lock()
defer p.configurationLock.Unlock()
if configuration != nil && p.configuration == configuration {
panic("setConfiguration called with the existing configuration")
}
p.configuration = configuration
}