out_multiinstance: update to use FLBPluginExitCtx

Signed-off-by: Zero King <[email protected]>

Author: l2dy

README.md

@@ -4,7 +4,7 @@ This repository contains Go packages that allows to create [Fluent Bit][fluent-b
 
 ## Requirements
 
-The code of this package is intended to be used with [Fluent Bit v1.1][fluent-bit-1-1] branch or higher.
+The code of this package is intended to be used with [Fluent Bit v1.4][fluent-bit-1-4] branch or higher.
 
 ## Usage
 
@@ -35,7 +35,7 @@ Feel free to join us on our Slack channel, Mailing List, IRC or Twitter:
 other [contributors][contributors].
 
 [fluent-bit]: http://fluentbit.io/
-[fluent-bit-1-1]: https://github.com/fluent/fluent-bit/tree/v1.1.0
+[fluent-bit-1-4]: https://github.com/fluent/fluent-bit/tree/v1.4.0
 [multiinstance]: https://github.com/fluent/fluent-bit-go/tree/fc386d263885e50387dd0081a77adf4072e8e4b6/examples/out_multiinstance
 [fluent-bit-go]: http://github.com/fluent/fluent-bit-go
 [treasure-data]: http://treasuredata.com

examples/out_multiinstance/README.md

@@ -11,7 +11,7 @@ Every output plugin go through four callbacks associated to different phases:
 | Registration        | FLBPluginRegister()        |
 | Initialization      | FLBPluginInit()            |
 | Runtime Flush       | FLBPluginFlushCtx()        |
-| Exit                | FLBPluginExit()            |
+| Exit                | FLBPluginExitCtx()         |
 
 ## Plugin Registration
 
@@ -83,8 +83,8 @@ When done, there are three returning values available:
 When Fluent Bit will stop using the instance of the plugin, it will trigger the exit callback. e.g:
 
 ```go
-//export FLBPluginExit
-func FLBPluginExit() int {
+//export FLBPluginExitCtx
+func FLBPluginExitCtx(ctx unsafe.Pointer) int {
 	return output.FLB_OK
 }
 ```

examples/out_multiinstance/out.go

@@ -72,6 +72,12 @@ func FLBPluginFlushCtx(ctx, data unsafe.Pointer, length C.int, tag *C.char) int
 
 //export FLBPluginExit
 func FLBPluginExit() int {
+	log.Print("[multiinstance] Exit called for unknown instance")
+	return output.FLB_OK
+}
+
+//export FLBPluginExitCtx
+func FLBPluginExitCtx(ctx unsafe.Pointer) int {
 	return output.FLB_OK
 }