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1 | sclass Fiber {
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2 | Thread runningInThread; |
3 | long grabCount; |
4 | |
5 | final Map<IVar, O> fiberLocalValues = syncWeakMap(); |
6 | |
7 | synchronized void grab {
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8 | Thread t = currentThread(); |
9 | if (runningInThread != null && runningInThread != t) |
10 | failWithVars("Trying to assign virtual thread to 2 threads", +thread1 := runningInThread, thread2 := t);
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11 | runningInThread = t; |
12 | grabCount++; |
13 | } |
14 | |
15 | synchronized void release {
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16 | Thread t = currentThread(); |
17 | if (runningInThread != t) |
18 | failWithVars("Broken release", +thread1 := runningInThread, thread2 := t);
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19 | if (--grabCount == 0) |
20 | runningInThread = null; |
21 | } |
22 | |
23 | O getFiberLocalValue(IVar fiberLocal) {
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24 | ret fiberLocalValues.get(fiberLocal); |
25 | } |
26 | |
27 | void setFiberLocalValue(IVar fiberLocal, O value) {
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28 | fiberLocalValues.put(fiberLocal, value); |
29 | } |
30 | |
31 | void foretFiberLocalValue(IVar fiberLocal) {
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32 | fiberLocalValues.remove(fiberLocal); |
33 | } |
34 | } |
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| Snippet ID: | #1032578 |
| Snippet name: | Fiber - "light weight" thread structure |
| Eternal ID of this version: | #1032578/9 |
| Text MD5: | 7d4d4d0c038728e5dbb66654f7664a7b |
| Transpilation MD5: | 5b637d4895289099fdb4eb26e477ce8a |
| Author: | stefan |
| Category: | javax |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2021-09-23 05:12:13 |
| Source code size: | 953 bytes / 34 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 100 / 212 |
| Version history: | 8 change(s) |
| Referenced in: | [show references] |