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Implement stream cancellation in OllamaClient

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Add `cancelStream` method to allow aborting active requests. Store the current `AbortController` on the client instance
and reset it when the stream completes or is cancelled. Update `ChatView` to call `cancelStream` on close.

Add comprehensive tests for stream cancellation scenarios, including aborting active requests, handling cancellation
when no stream is active, clearing the controller after normal completion, and allowing new streams after cancellation.
This commit is contained in:
Florian Egger
2026-05-07 12:11:01 +02:00
parent 45993bea67
commit 9823761e03
15 changed files with 495 additions and 296 deletions
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.gitignore
+1
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@@ -6,6 +6,7 @@ lib/
dist/ dist/
out/ out/
build/ build/
coverage/
# IDE files # IDE files
.idea/ .idea/
coverage/lcov-report/chat-view.ts.html
+7 -7
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@@ -23,9 +23,9 @@
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@@ -44,9 +44,9 @@
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@@ -628,7 +628,7 @@
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
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@@ -1105,7 +1105,7 @@ export class ChatView extends ItemView {
} }
&nbsp; &nbsp;
onClose(): Promise&lt;void&gt; { onClose(): Promise&lt;void&gt; {
// Removed cancelStream call as we now use local controllers this.ollamaClient.cancelStream();
this.removeEventListeners(); this.removeEventListeners();
this.cleanupStreamingResources(); this.cleanupStreamingResources();
this.lastMessageEl = null; this.lastMessageEl = null;
@@ -1501,7 +1501,7 @@ export class ChatView extends ItemView {
<div class='footer quiet pad2 space-top1 center small'> <div class='footer quiet pad2 space-top1 center small'>
Code coverage generated by Code coverage generated by
<a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
at 2026-05-06T22:58:43.715Z at 2026-05-07T10:09:29.372Z
</div> </div>
<script src="prettify.js"></script> <script src="prettify.js"></script>
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coverage/lcov-report/error-handler.ts.html
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@@ -475,7 +475,7 @@ export class ErrorHandler {
<div class='footer quiet pad2 space-top1 center small'> <div class='footer quiet pad2 space-top1 center small'>
Code coverage generated by Code coverage generated by
<a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
at 2026-05-06T22:58:43.715Z at 2026-05-07T10:09:29.372Z
</div> </div>
<script src="prettify.js"></script> <script src="prettify.js"></script>
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coverage/lcov-report/index.html
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@@ -23,30 +23,30 @@
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<span class="strong">88.59% </span> <span class="strong">88.69% </span>
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@@ -80,17 +80,17 @@
</thead> </thead>
<tbody><tr> <tbody><tr>
<td class="file high" data-value="chat-view.ts"><a href="chat-view.ts.html">chat-view.ts</a></td> <td class="file high" data-value="chat-view.ts"><a href="chat-view.ts.html">chat-view.ts</a></td>
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</td> </td>
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<td data-value="85.71" class="pct high">85.71%</td> <td data-value="85.71" class="pct high">85.71%</td>
<td data-value="70" class="abs high">60/70</td> <td data-value="70" class="abs high">60/70</td>
<td data-value="82.85" class="pct high">82.85%</td> <td data-value="82.85" class="pct high">82.85%</td>
<td data-value="35" class="abs high">29/35</td> <td data-value="35" class="abs high">29/35</td>
<td data-value="94.5" class="pct high">94.5%</td> <td data-value="94.52" class="pct high">94.52%</td>
<td data-value="200" class="abs high">189/200</td> <td data-value="201" class="abs high">190/201</td>
</tr> </tr>
<tr> <tr>
@@ -110,17 +110,17 @@
<tr> <tr>
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</td> </td>
<td data-value="91.8" class="pct high">91.8%</td>
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<td data-value="55" class="abs medium">40/55</td>
<td data-value="88.23" class="pct high">88.23%</td>
<td data-value="17" class="abs high">15/17</td>
<td data-value="91.37" class="pct high">91.37%</td> <td data-value="91.37" class="pct high">91.37%</td>
<td data-value="116" class="abs high">106/116</td> <td data-value="116" class="abs high">106/116</td>
<td data-value="72.22" class="pct medium">72.22%</td>
<td data-value="54" class="abs medium">39/54</td>
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<td data-value="16" class="abs high">14/16</td>
<td data-value="90.9" class="pct high">90.9%</td>
<td data-value="110" class="abs high">100/110</td>
</tr> </tr>
<tr> <tr>
@@ -191,7 +191,7 @@
<div class='footer quiet pad2 space-top1 center small'> <div class='footer quiet pad2 space-top1 center small'>
Code coverage generated by Code coverage generated by
<a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
at 2026-05-06T22:58:43.715Z at 2026-05-07T10:09:29.372Z
</div> </div>
<script src="prettify.js"></script> <script src="prettify.js"></script>
<script> <script>
coverage/lcov-report/ollama-client.ts.html
+93 -60
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@@ -23,30 +23,30 @@
<div class='clearfix'> <div class='clearfix'>
<div class='fl pad1y space-right2'> <div class='fl pad1y space-right2'>
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</div> </div>
<div class='fl pad1y space-right2'> <div class='fl pad1y space-right2'>
<span class="strong">72.22% </span> <span class="strong">72.72% </span>
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<span class='fraction'>39/54</span> <span class='fraction'>40/55</span>
</div> </div>
<div class='fl pad1y space-right2'> <div class='fl pad1y space-right2'>
<span class="strong">87.5% </span> <span class="strong">88.23% </span>
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<span class='fraction'>14/16</span> <span class='fraction'>15/17</span>
</div> </div>
<div class='fl pad1y space-right2'> <div class='fl pad1y space-right2'>
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@@ -339,7 +339,18 @@
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<a name='L277'></a><a href='#L277'>277</a></td><td class="line-coverage quiet"><span class="cline-any cline-neutral">&nbsp;</span> <a name='L277'></a><a href='#L277'>277</a>
<a name='L278'></a><a href='#L278'>278</a>
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<span class="cline-any cline-yes">25x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">5x</span> <span class="cline-any cline-yes">5x</span>
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
@@ -597,18 +619,18 @@
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">15x</span> <span class="cline-any cline-yes">16x</span>
<span class="cline-any cline-yes">1x</span> <span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">19x</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">18x</span>
<span class="cline-any cline-yes">18x</span> <span class="cline-any cline-yes">18x</span>
<span class="cline-any cline-yes">1x</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-yes">17x</span>
<span class="cline-any cline-yes">17x</span>
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
<span class="cline-any cline-neutral">&nbsp;</span> <span class="cline-any cline-neutral">&nbsp;</span>
@@ -630,12 +652,20 @@ export class OllamaClient {
private model: string; private model: string;
private fetchFn: typeof fetch; private fetchFn: typeof fetch;
private readonly maxRetries: number = 3; private readonly maxRetries: number = 3;
private currentStreamController: AbortController | null = null;
&nbsp; &nbsp;
constructor(baseURL: string, model: string, fetchFn?: typeof fetch) { constructor(baseURL: string, model: string, fetchFn?: typeof fetch) {
this.baseURL = baseURL; this.baseURL = baseURL;
this.model = model; this.model = model;
this.fetchFn = fetchFn ?? fetch; this.fetchFn = fetchFn ?? fetch;
} }
&nbsp;
cancelStream(): void {
if (this.currentStreamController) {
this.currentStreamController.abort();
this.currentStreamController = null;
}
}
&nbsp; &nbsp;
async *streamChat( async *streamChat(
messages: OllamaMessage[], messages: OllamaMessage[],
@@ -662,6 +692,7 @@ export class OllamaClient {
): AsyncGenerator&lt;OllamaMessage, void, unknown&gt; { ): AsyncGenerator&lt;OllamaMessage, void, unknown&gt; {
// Create a local controller for this request instead of using the instance variable // Create a local controller for this request instead of using the instance variable
const controller = new AbortController(); const controller = new AbortController();
this.currentStreamController = controller;
&nbsp; &nbsp;
try { try {
const response = await this.fetchFn(`${this.baseURL}/api/chat`, { const response = await this.fetchFn(`${this.baseURL}/api/chat`, {
@@ -798,6 +829,8 @@ export class OllamaClient {
// Abort the local controller // Abort the local controller
controller.abort(); controller.abort();
} }
// Clean up the reference
this.currentStreamController = null;
} }
&nbsp; &nbsp;
async chat(messages: OllamaMessage[], tools: OllamaTool[] = <span class="branch-0 cbranch-no" title="branch not covered" >[])</span>: Promise&lt;OllamaMessage&gt; { async chat(messages: OllamaMessage[], tools: OllamaTool[] = <span class="branch-0 cbranch-no" title="branch not covered" >[])</span>: Promise&lt;OllamaMessage&gt; {
@@ -898,7 +931,7 @@ export class OllamaClient {
<div class='footer quiet pad2 space-top1 center small'> <div class='footer quiet pad2 space-top1 center small'>
Code coverage generated by Code coverage generated by
<a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
at 2026-05-06T22:58:43.715Z at 2026-05-07T10:09:29.372Z
</div> </div>
<script src="prettify.js"></script> <script src="prettify.js"></script>
<script> <script>
coverage/lcov-report/tool-executor.ts.html
+1 -1
View File
@@ -463,7 +463,7 @@ export class ToolExecutor {
<div class='footer quiet pad2 space-top1 center small'> <div class='footer quiet pad2 space-top1 center small'>
Code coverage generated by Code coverage generated by
<a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
at 2026-05-06T22:58:43.715Z at 2026-05-07T10:09:29.372Z
</div> </div>
<script src="prettify.js"></script> <script src="prettify.js"></script>
<script> <script>
coverage/lcov-report/types.ts.html
+1 -1
View File
@@ -604,7 +604,7 @@ export interface VaultIndexEntry {
<div class='footer quiet pad2 space-top1 center small'> <div class='footer quiet pad2 space-top1 center small'>
Code coverage generated by Code coverage generated by
<a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
at 2026-05-06T22:58:43.715Z at 2026-05-07T10:09:29.372Z
</div> </div>
<script src="prettify.js"></script> <script src="prettify.js"></script>
<script> <script>
coverage/lcov-report/utils.ts.html
+1 -1
View File
@@ -643,7 +643,7 @@ export function safeParseJson(jsonString: string): unknown {
<div class='footer quiet pad2 space-top1 center small'> <div class='footer quiet pad2 space-top1 center small'>
Code coverage generated by Code coverage generated by
<a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
at 2026-05-06T22:58:43.715Z at 2026-05-07T10:09:29.372Z
</div> </div>
<script src="prettify.js"></script> <script src="prettify.js"></script>
<script> <script>
coverage/lcov-report/vault-indexer.ts.html
+1 -1
View File
@@ -1183,7 +1183,7 @@ export function <span class="fstat-no" title="function not covered" >createVault
<div class='footer quiet pad2 space-top1 center small'> <div class='footer quiet pad2 space-top1 center small'>
Code coverage generated by Code coverage generated by
<a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a> <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
at 2026-05-06T22:58:43.715Z at 2026-05-07T10:09:29.372Z
</div> </div>
<script src="prettify.js"></script> <script src="prettify.js"></script>
<script> <script>
coverage/lcov.info
+205 -195
View File
@@ -111,6 +111,7 @@ DA:79,5
DA:80,5 DA:80,5
DA:81,5 DA:81,5
DA:85,0 DA:85,0
DA:89,3
DA:90,3 DA:90,3
DA:91,3 DA:91,3
DA:92,3 DA:92,3
@@ -272,8 +273,8 @@ DA:468,12
DA:470,6 DA:470,6
DA:472,21 DA:472,21
DA:473,21 DA:473,21
LF:200 LF:201
LH:189 LH:190
BRDA:102,0,0,0 BRDA:102,0,0,0
BRDA:102,1,0,28 BRDA:102,1,0,28
BRDA:102,1,1,6 BRDA:102,1,1,6
@@ -482,208 +483,217 @@ BRH:42
end_of_record end_of_record
TN: TN:
SF:src/ollama-client.ts SF:src/ollama-client.ts
FN:17,(anonymous_0) FN:18,(anonymous_0)
FN:23,(anonymous_1) FN:24,(anonymous_1)
FN:30,(anonymous_2) FN:31,(anonymous_2)
FN:41,(anonymous_3) FN:38,(anonymous_3)
FN:72,(anonymous_4) FN:49,(anonymous_4)
FN:73,(anonymous_5) FN:81,(anonymous_5)
FN:82,(anonymous_6) FN:82,(anonymous_6)
FN:83,(anonymous_7) FN:91,(anonymous_7)
FN:186,(anonymous_8) FN:92,(anonymous_8)
FN:190,(anonymous_9) FN:197,(anonymous_9)
FN:220,(anonymous_10) FN:201,(anonymous_10)
FN:221,(anonymous_11) FN:231,(anonymous_11)
FN:230,(anonymous_12) FN:232,(anonymous_12)
FN:231,(anonymous_13) FN:241,(anonymous_13)
FN:258,(anonymous_14) FN:242,(anonymous_14)
FN:264,(anonymous_15) FN:269,(anonymous_15)
FNF:16 FN:275,(anonymous_16)
FNH:14 FNF:17
FNDA:59,(anonymous_0) FNH:15
FNDA:20,(anonymous_1) FNDA:61,(anonymous_0)
FNDA:3,(anonymous_2) FNDA:6,(anonymous_1)
FNDA:25,(anonymous_3) FNDA:24,(anonymous_2)
FNDA:4,(anonymous_4) FNDA:3,(anonymous_3)
FNDA:0,(anonymous_5) FNDA:29,(anonymous_4)
FNDA:4,(anonymous_6) FNDA:4,(anonymous_5)
FNDA:0,(anonymous_6)
FNDA:4,(anonymous_7) FNDA:4,(anonymous_7)
FNDA:5,(anonymous_8) FNDA:4,(anonymous_8)
FNDA:8,(anonymous_9) FNDA:5,(anonymous_9)
FNDA:2,(anonymous_10) FNDA:8,(anonymous_10)
FNDA:0,(anonymous_11) FNDA:2,(anonymous_11)
FNDA:2,(anonymous_12) FNDA:0,(anonymous_12)
FNDA:2,(anonymous_13) FNDA:2,(anonymous_13)
FNDA:15,(anonymous_14) FNDA:2,(anonymous_14)
FNDA:18,(anonymous_15) FNDA:16,(anonymous_15)
FNDA:19,(anonymous_16)
DA:4,2 DA:4,2
DA:5,2 DA:5,2
DA:11,2 DA:11,2
DA:15,59 DA:15,61
DA:18,59 DA:16,61
DA:19,59 DA:19,61
DA:20,59 DA:20,61
DA:27,20 DA:21,61
DA:34,3 DA:25,6
DA:35,3 DA:26,2
DA:36,0 DA:27,2
DA:38,0 DA:35,24
DA:47,25 DA:42,3
DA:49,25 DA:43,3
DA:50,25 DA:44,0
DA:64,25 DA:46,0
DA:65,8 DA:55,29
DA:66,5 DA:56,29
DA:67,5 DA:58,29
DA:71,5 DA:59,29
DA:72,4 DA:73,27
DA:73,4 DA:74,8
DA:74,0 DA:75,5
DA:76,4 DA:76,5
DA:77,4 DA:80,5
DA:78,4 DA:81,4
DA:79,4 DA:82,4
DA:80,4 DA:83,0
DA:83,4 DA:85,4
DA:86,4
DA:87,4
DA:88,4
DA:89,4 DA:89,4
DA:92,0 DA:92,4
DA:95,5 DA:98,4
DA:96,2 DA:101,0
DA:98,3 DA:104,5
DA:101,13 DA:105,2
DA:102,1 DA:107,3
DA:105,12 DA:110,15
DA:106,12 DA:111,1
DA:107,1 DA:114,14
DA:110,11 DA:115,14
DA:111,11 DA:116,1
DA:112,11 DA:119,13
DA:113,11 DA:120,13
DA:114,11 DA:121,13
DA:116,11 DA:122,13
DA:117,11 DA:123,13
DA:118,19 DA:125,13
DA:119,19 DA:126,13
DA:121,10 DA:127,22
DA:123,10 DA:128,22
DA:124,10 DA:130,11
DA:126,10 DA:132,11
DA:127,68 DA:133,11
DA:129,67 DA:135,11
DA:130,67 DA:136,69
DA:131,14 DA:138,68
DA:133,13 DA:139,68
DA:134,13 DA:140,15
DA:135,0 DA:142,14
DA:138,13 DA:143,14
DA:139,13 DA:144,0
DA:141,54 DA:147,14
DA:142,1 DA:148,14
DA:145,53 DA:150,54
DA:146,53 DA:151,1
DA:147,1 DA:154,53
DA:150,52 DA:155,53
DA:158,9 DA:156,1
DA:159,1 DA:159,52
DA:160,1 DA:167,11
DA:161,1 DA:168,1
DA:163,1 DA:169,1
DA:164,1 DA:170,1
DA:165,1 DA:172,1
DA:168,0 DA:173,1
DA:169,0 DA:174,1
DA:171,0 DA:177,0
DA:178,11 DA:178,0
DA:182,25 DA:180,0
DA:187,5 DA:187,13
DA:196,8 DA:191,29
DA:197,8 DA:194,11
DA:198,8 DA:198,5
DA:212,8 DA:207,8
DA:213,4 DA:208,8
DA:214,3 DA:209,8
DA:215,3 DA:223,8
DA:219,3 DA:224,4
DA:220,2 DA:225,3
DA:221,2 DA:226,3
DA:222,0 DA:230,3
DA:224,2
DA:225,2
DA:226,2
DA:227,2
DA:228,2
DA:231,2 DA:231,2
DA:232,2
DA:233,0
DA:235,2
DA:236,2
DA:237,2 DA:237,2
DA:240,0 DA:238,2
DA:243,3 DA:239,2
DA:245,1 DA:242,2
DA:248,4 DA:248,2
DA:249,4 DA:251,0
DA:254,8 DA:254,3
DA:259,15 DA:256,1
DA:260,1 DA:259,4
DA:265,18 DA:260,4
DA:266,1 DA:265,8
DA:269,17 DA:270,16
DA:270,17 DA:271,1
LF:110 DA:276,19
LH:100 DA:277,1
BRDA:20,0,0,59 DA:280,18
BRDA:20,0,1,36 DA:281,18
BRDA:25,1,0,0 LF:116
BRDA:32,2,0,0 LH:106
BRDA:43,3,0,0 BRDA:21,0,0,61
BRDA:44,4,0,0 BRDA:21,0,1,36
BRDA:64,5,0,8 BRDA:25,1,0,2
BRDA:65,6,0,5 BRDA:33,2,0,0
BRDA:65,7,0,8 BRDA:40,3,0,0
BRDA:65,7,1,6 BRDA:51,4,0,0
BRDA:71,8,0,4 BRDA:52,5,0,0
BRDA:77,9,0,4 BRDA:73,6,0,8
BRDA:77,9,1,0 BRDA:74,7,0,5
BRDA:101,10,0,1 BRDA:74,8,0,8
BRDA:106,11,0,1 BRDA:74,8,1,6
BRDA:106,12,0,12 BRDA:80,9,0,4
BRDA:106,12,1,12 BRDA:86,10,0,4
BRDA:106,12,2,1 BRDA:86,10,1,0
BRDA:119,13,0,9 BRDA:110,11,0,1
BRDA:124,14,0,10 BRDA:115,12,0,1
BRDA:124,14,1,0 BRDA:115,13,0,14
BRDA:127,15,0,1 BRDA:115,13,1,14
BRDA:134,16,0,0 BRDA:115,13,2,1
BRDA:141,17,0,1 BRDA:128,14,0,11
BRDA:141,18,0,54 BRDA:133,15,0,11
BRDA:141,18,1,54 BRDA:133,15,1,0
BRDA:146,19,0,1 BRDA:136,16,0,1
BRDA:158,20,0,1 BRDA:143,17,0,0
BRDA:164,21,0,1 BRDA:150,18,0,1
BRDA:168,22,0,0 BRDA:150,19,0,54
BRDA:168,23,0,0 BRDA:150,19,1,54
BRDA:168,23,1,0 BRDA:155,20,0,1
BRDA:186,24,0,0 BRDA:167,21,0,1
BRDA:192,25,0,0 BRDA:173,22,0,1
BRDA:193,26,0,0 BRDA:177,23,0,0
BRDA:212,27,0,4 BRDA:177,24,0,0
BRDA:213,28,0,3 BRDA:177,24,1,0
BRDA:213,29,0,4 BRDA:197,25,0,0
BRDA:213,29,1,4 BRDA:203,26,0,0
BRDA:219,30,0,2 BRDA:204,27,0,0
BRDA:225,31,0,2 BRDA:223,28,0,4
BRDA:225,31,1,0 BRDA:224,29,0,3
BRDA:250,32,0,4 BRDA:224,30,0,4
BRDA:250,32,1,1 BRDA:224,30,1,4
BRDA:259,33,0,1 BRDA:230,31,0,2
BRDA:265,34,0,1 BRDA:236,32,0,2
BRDA:265,35,0,18 BRDA:236,32,1,0
BRDA:265,35,1,17 BRDA:261,33,0,4
BRDA:271,36,0,17 BRDA:261,33,1,1
BRDA:271,36,1,17 BRDA:270,34,0,1
BRDA:272,37,0,17 BRDA:276,35,0,1
BRDA:272,37,1,0 BRDA:276,36,0,19
BRDA:273,38,0,17 BRDA:276,36,1,18
BRDA:273,38,1,15 BRDA:282,37,0,18
BRF:54 BRDA:282,37,1,18
BRH:39 BRDA:283,38,0,18
BRDA:283,38,1,0
BRDA:284,39,0,18
BRDA:284,39,1,16
BRF:55
BRH:40
end_of_record end_of_record
TN: TN:
SF:src/tool-executor.ts SF:src/tool-executor.ts
src/chat-view.js
+1 -1
View File
@@ -60,7 +60,7 @@ class ChatView extends obsidian_1.ItemView {
this.updateSettings(newSettings); this.updateSettings(newSettings);
} }
onClose() { onClose() {
// Removed cancelStream call as we now use local controllers this.ollamaClient.cancelStream();
this.removeEventListeners(); this.removeEventListeners();
this.cleanupStreamingResources(); this.cleanupStreamingResources();
this.lastMessageEl = null; this.lastMessageEl = null;
src/chat-view.ts
+1 -1
View File
@@ -86,7 +86,7 @@ export class ChatView extends ItemView {
} }
onClose(): Promise<void> { onClose(): Promise<void> {
// Removed cancelStream call as we now use local controllers this.ollamaClient.cancelStream();
this.removeEventListeners(); this.removeEventListeners();
this.cleanupStreamingResources(); this.cleanupStreamingResources();
this.lastMessageEl = null; this.lastMessageEl = null;
src/ollama-client.js
+10
View File
@@ -7,10 +7,17 @@ const utils_1 = require("./utils");
class OllamaClient { class OllamaClient {
constructor(baseURL, model, fetchFn) { constructor(baseURL, model, fetchFn) {
this.maxRetries = 3; this.maxRetries = 3;
this.currentStreamController = null;
this.baseURL = baseURL; this.baseURL = baseURL;
this.model = model; this.model = model;
this.fetchFn = fetchFn ?? fetch; this.fetchFn = fetchFn ?? fetch;
} }
cancelStream() {
if (this.currentStreamController) {
this.currentStreamController.abort();
this.currentStreamController = null;
}
}
async *streamChat(messages, tools = []) { async *streamChat(messages, tools = []) {
yield* this.streamChatWithRetry(messages, tools, 0); yield* this.streamChatWithRetry(messages, tools, 0);
} }
@@ -24,6 +31,7 @@ class OllamaClient {
async *streamChatWithRetry(messages, tools = [], attempt = 0) { async *streamChatWithRetry(messages, tools = [], attempt = 0) {
// Create a local controller for this request instead of using the instance variable // Create a local controller for this request instead of using the instance variable
const controller = new AbortController(); const controller = new AbortController();
this.currentStreamController = controller;
try { try {
const response = await this.fetchFn(`${this.baseURL}/api/chat`, { const response = await this.fetchFn(`${this.baseURL}/api/chat`, {
method: 'POST', method: 'POST',
@@ -143,6 +151,8 @@ class OllamaClient {
// Abort the local controller // Abort the local controller
controller.abort(); controller.abort();
} }
// Clean up the reference
this.currentStreamController = null;
} }
async chat(messages, tools = []) { async chat(messages, tools = []) {
return this.chatWithRetry(messages, tools, 0); return this.chatWithRetry(messages, tools, 0);
src/ollama-client.ts
+11
View File
@@ -13,6 +13,7 @@ export class OllamaClient {
private model: string; private model: string;
private fetchFn: typeof fetch; private fetchFn: typeof fetch;
private readonly maxRetries: number = 3; private readonly maxRetries: number = 3;
private currentStreamController: AbortController | null = null;
constructor(baseURL: string, model: string, fetchFn?: typeof fetch) { constructor(baseURL: string, model: string, fetchFn?: typeof fetch) {
this.baseURL = baseURL; this.baseURL = baseURL;
@@ -20,6 +21,13 @@ export class OllamaClient {
this.fetchFn = fetchFn ?? fetch; this.fetchFn = fetchFn ?? fetch;
} }
cancelStream(): void {
if (this.currentStreamController) {
this.currentStreamController.abort();
this.currentStreamController = null;
}
}
async *streamChat( async *streamChat(
messages: OllamaMessage[], messages: OllamaMessage[],
tools: OllamaTool[] = [] tools: OllamaTool[] = []
@@ -45,6 +53,7 @@ export class OllamaClient {
): AsyncGenerator<OllamaMessage, void, unknown> { ): AsyncGenerator<OllamaMessage, void, unknown> {
// Create a local controller for this request instead of using the instance variable // Create a local controller for this request instead of using the instance variable
const controller = new AbortController(); const controller = new AbortController();
this.currentStreamController = controller;
try { try {
const response = await this.fetchFn(`${this.baseURL}/api/chat`, { const response = await this.fetchFn(`${this.baseURL}/api/chat`, {
@@ -181,6 +190,8 @@ export class OllamaClient {
// Abort the local controller // Abort the local controller
controller.abort(); controller.abort();
} }
// Clean up the reference
this.currentStreamController = null;
} }
async chat(messages: OllamaMessage[], tools: OllamaTool[] = []): Promise<OllamaMessage> { async chat(messages: OllamaMessage[], tools: OllamaTool[] = []): Promise<OllamaMessage> {
tests/ollama-client.test.ts
+140 -6
View File
@@ -423,15 +423,149 @@ describe('OllamaClient', () => {
}); });
describe('cancelStream', () => { describe('cancelStream', () => {
it('should abort the current request', () => { it('should abort an active streaming request when cancelled before fetch resolves', async () => {
// Removed cancelStream call as we now use local controllers let capturedSignal: AbortSignal | undefined;
// expect(client['abortController']).toBeNull(); // Removed as abortController no longer exists
mockFetch.mockImplementation((_url, options?: any) => {
capturedSignal = options?.signal;
return Promise.race([
// Simulate slow network response
new Promise(() => {
// Never resolves on its own - relies on abort
}),
// Reject when signal is aborted (like real fetch does)
new Promise<never>((_, reject) => {
if (capturedSignal?.aborted) {
reject(new DOMException('The operation was aborted.', 'AbortError'));
return;
}
capturedSignal?.addEventListener('abort', () => {
reject(new DOMException('The operation was aborted.', 'AbortError'));
});
}),
]);
});
// Consume the stream in an async function so we can await the rejection
const consumeStream = async () => {
const stream = await client.streamChat(mockMessages, mockTools);
for await (const _ of stream) {
/* consume */
}
};
// Start consuming - this triggers the fetch
const consumePromise = consumeStream();
// Wait a tick for fetch to be invoked
await new Promise((resolve) => setTimeout(resolve, 10));
// Verify controller is set after fetch starts
expect(client['currentStreamController']).not.toBeNull();
// Cancel the stream - this aborts the controller and triggers fetch rejection
client.cancelStream();
// Verify signal was aborted
expect(capturedSignal?.aborted).toBe(true);
// Verify controller was cleared by cancelStream
expect(client['currentStreamController']).toBeNull();
// The stream consumption must reject with an abort error
await expect(consumePromise).rejects.toThrow('The operation was aborted.');
}); });
it('should handle cancel when no active stream', () => { it('should handle cancel when no active stream', () => {
// Removed cancelStream test as we now use local controllers // Calling cancelStream with no active stream must not throw
// expect(() => client.cancelStream()).not.toThrow(); // Removed as cancelStream no longer exists expect(() => client.cancelStream()).not.toThrow();
// expect(client['abortController']).toBeNull(); // Removed as abortController no longer exists expect(client['currentStreamController']).toBeNull();
});
it('should clear the controller after stream completes normally', async () => {
const streamData = JSON.stringify({ message: { content: 'done' } }) + '\n';
const mockReader = createMockReader(streamData);
mockFetch.mockResolvedValue({
ok: true,
body: { getReader: () => mockReader },
headers: {
get: (name: string) => (name === 'content-type' ? 'application/x-ndjson' : null),
},
});
const stream = await client.streamChat(mockMessages, mockTools);
for await (const _ of stream) {
/* consume */
}
// Controller should be cleared after normal completion
expect(client['currentStreamController']).toBeNull();
});
it('should allow a new stream after cancelling a previous one', async () => {
// First fetch: pending and abortable
mockFetch.mockImplementationOnce((_url, options?: any) => {
const signal = options?.signal;
return Promise.race([
new Promise(() => {
// Never resolves on its own
}),
new Promise<never>((_, reject) => {
if (signal?.aborted) {
reject(new DOMException('The operation was aborted.', 'AbortError'));
return;
}
signal?.addEventListener('abort', () => {
reject(new DOMException('The operation was aborted.', 'AbortError'));
});
}),
]);
});
// Second fetch: resolves immediately with valid stream
mockFetch.mockResolvedValueOnce({
ok: true,
body: {
getReader: () => ({
read: () => Promise.resolve({ done: true, value: new Uint8Array(0) }),
releaseLock: () => {},
}),
},
headers: {
get: (name: string) => (name === 'content-type' ? 'application/x-ndjson' : null),
},
});
// Start first stream and consume it
const consumeFirst = async () => {
const stream = await client.streamChat(mockMessages, mockTools);
for await (const _ of stream) {
/* consume */
}
};
const firstStreamPromise = consumeFirst();
await new Promise((resolve) => setTimeout(resolve, 10));
// Cancel first stream
client.cancelStream();
await expect(firstStreamPromise).rejects.toThrow('The operation was aborted.');
// Controller is cleared, can start a new stream
expect(client['currentStreamController']).toBeNull();
// Start second stream - should succeed independently
const stream2 = await client.streamChat(mockMessages, mockTools);
for await (const _ of stream2) {
/* consume */
}
// Second stream completes and clears controller
expect(client['currentStreamController']).toBeNull();
}); });
}); });