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Merge pull request #63 from matrober-uk/memory-leaks
Fix memory leaks due to MessageHandles
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,167 @@ | ||
| /* | ||
| * Copyright (c) IBM Corporation 2023 | ||
| * | ||
| * This program and the accompanying materials are made available under the | ||
| * terms of the Eclipse Public License v. 2.0, which is available at | ||
| * http://www.eclipse.org/legal/epl-2.0. | ||
| * | ||
| * SPDX-License-Identifier: EPL-2.0 | ||
| */ | ||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "runtime" | ||
| "testing" | ||
| "time" | ||
|
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| "github.com/ibm-messaging/mq-golang-jms20/jms20subset" | ||
| "github.com/ibm-messaging/mq-golang-jms20/mqjms" | ||
| "github.com/stretchr/testify/assert" | ||
| ) | ||
|
|
||
| /* | ||
| * Test for memory leak when there is no message to be received. | ||
| * | ||
| * This test is not included in the normal bucket as it sends an enormous number of | ||
| * messages, and requires human observation of the total process size to establish whether | ||
| * it passes or not, so can only be run under human supervision | ||
| */ | ||
| func DONT_RUNTestLeakOnEmptyGet(t *testing.T) { | ||
|
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| // Loads CF parameters from connection_info.json and applicationApiKey.json in the Downloads directory | ||
| //cf, cfErr := mqjms.CreateConnectionFactoryFromDefaultJSONFiles() | ||
| //assert.Nil(t, cfErr) | ||
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| // Initialise the attributes of the CF in whatever way you like | ||
| cf := mqjms.ConnectionFactoryImpl{ | ||
| QMName: "QM1", | ||
| Hostname: "localhost", | ||
| PortNumber: 1414, | ||
| ChannelName: "DEV.APP.SVRCONN", | ||
| UserName: "app", | ||
| Password: "passw0rd", | ||
| } | ||
|
|
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| // Creates a connection to the queue manager, using defer to close it automatically | ||
| // at the end of the function (if it was created successfully) | ||
| context, ctxErr := cf.CreateContext() | ||
| assert.Nil(t, ctxErr) | ||
| if context != nil { | ||
| defer context.Close() | ||
| } | ||
|
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| // Now send the message and get it back again, to check that it roundtripped. | ||
| queue := context.CreateQueue("DEV.QUEUE.1") | ||
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| consumer, errCons := context.CreateConsumer(queue) | ||
| if consumer != nil { | ||
| defer consumer.Close() | ||
| } | ||
| assert.Nil(t, errCons) | ||
|
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| for i := 1; i < 35000; i++ { | ||
|
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| rcvMsg, errRvc := consumer.ReceiveNoWait() | ||
| assert.Nil(t, errRvc) | ||
| assert.Nil(t, rcvMsg) | ||
|
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| if i%1000 == 0 { | ||
| fmt.Println("Messages:", i) | ||
| } | ||
|
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| } | ||
|
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| fmt.Println("Finished receive calls - waiting for cooldown.") | ||
| runtime.GC() | ||
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| time.Sleep(30 * time.Second) | ||
|
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| } | ||
|
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| /* | ||
| * Test for memory leak when sending and receiving messages | ||
| * | ||
| * This test is not included in the normal bucket as it sends an enormous number of | ||
| * messages, and requires human observation of the total process size to establish whether | ||
| * it passes or not, so can only be run under human supervision | ||
| */ | ||
| func DONTRUN_TestLeakOnPutGet(t *testing.T) { | ||
|
|
||
| // Loads CF parameters from connection_info.json and applicationApiKey.json in the Downloads directory | ||
| //cf, cfErr := mqjms.CreateConnectionFactoryFromDefaultJSONFiles() | ||
| //assert.Nil(t, cfErr) | ||
|
|
||
| // Initialise the attributes of the CF in whatever way you like | ||
| cf := mqjms.ConnectionFactoryImpl{ | ||
| QMName: "QM1", | ||
| Hostname: "localhost", | ||
| PortNumber: 1414, | ||
| ChannelName: "DEV.APP.SVRCONN", | ||
| UserName: "app", | ||
| Password: "passw0rd", | ||
| } | ||
|
|
||
| // Creates a connection to the queue manager, using defer to close it automatically | ||
| // at the end of the function (if it was created successfully) | ||
| context, ctxErr := cf.CreateContext() | ||
| assert.Nil(t, ctxErr) | ||
| if context != nil { | ||
| defer context.Close() | ||
| } | ||
|
|
||
| // Now send the message and get it back again, to check that it roundtripped. | ||
| queue := context.CreateQueue("DEV.QUEUE.1") | ||
|
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| consumer, errCons := context.CreateConsumer(queue) | ||
| if consumer != nil { | ||
| defer consumer.Close() | ||
| } | ||
| assert.Nil(t, errCons) | ||
|
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| ttlMillis := 20000 | ||
| producer := context.CreateProducer().SetTimeToLive(ttlMillis) | ||
|
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| for i := 1; i < 25000; i++ { | ||
|
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| // Create a TextMessage and check that we can populate it | ||
| msgBody := "Message " + fmt.Sprint(i) | ||
| txtMsg := context.CreateTextMessage() | ||
| txtMsg.SetText(msgBody) | ||
| txtMsg.SetIntProperty("MessageNumber", i) | ||
|
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| errSend := producer.Send(queue, txtMsg) | ||
| assert.Nil(t, errSend) | ||
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| rcvMsg, errRvc := consumer.ReceiveNoWait() | ||
| assert.Nil(t, errRvc) | ||
| assert.NotNil(t, rcvMsg) | ||
|
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| // Check message body. | ||
| switch msg := rcvMsg.(type) { | ||
| case jms20subset.TextMessage: | ||
| assert.Equal(t, msgBody, *msg.GetText()) | ||
| default: | ||
| assert.Fail(t, "Got something other than a text message") | ||
| } | ||
|
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| // Check messageID | ||
| assert.Equal(t, txtMsg.GetJMSMessageID(), rcvMsg.GetJMSMessageID()) | ||
|
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| // Check int property | ||
| rcvMsgNum, propErr := rcvMsg.GetIntProperty("MessageNumber") | ||
| assert.Nil(t, propErr) | ||
| assert.Equal(t, i, rcvMsgNum) | ||
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| if i%1000 == 0 { | ||
| fmt.Println("Messages:", i) | ||
| } | ||
|
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| } | ||
|
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| fmt.Println("Finished receive calls - waiting for cooldown.") | ||
| runtime.GC() | ||
|
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| time.Sleep(30 * time.Second) | ||
|
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||
| } |
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