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1 | sclass CircularByteBuffer {
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2 | byte[] buffer; |
3 | long base; // elements dropped due to overcapacity |
4 | int size; // elements actually contained |
5 | |
6 | *(int capacity) {
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7 | buffer = new byte[capacity]; |
8 | } |
9 | |
10 | synchronized void add(byte a) {
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11 | if (size == buffer.length) {
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12 | --size; |
13 | ++base; |
14 | } |
15 | buffer[(int) ((base+size) % buffer.length)] = a; |
16 | ++size; |
17 | } |
18 | |
19 | synchronized byte get(long pos) {
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20 | if (pos < base || pos >= base+size) ret 0; |
21 | ret buffer[(int) (pos % buffer.length)]; |
22 | } |
23 | |
24 | synchronized int size() {
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25 | ret size; |
26 | } |
27 | |
28 | synchronized int capacity() {
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29 | ret buffer.length; |
30 | } |
31 | |
32 | synchronized bool isFull() {
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33 | ret size() == capacity(); |
34 | } |
35 | |
36 | synchronized long getBase() {
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37 | ret base; |
38 | } |
39 | } |
Began life as a copy of #1025789
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| Snippet ID: | #1026626 |
| Snippet name: | CircularByteBuffer |
| Eternal ID of this version: | #1026626/3 |
| Text MD5: | a669da170f312bb6e55c7824cfec4acf |
| Transpilation MD5: | 9dc55d6b8f257e5513a88fe8c493972e |
| Author: | stefan |
| Category: | javax |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2020-01-16 19:42:45 |
| Source code size: | 781 bytes / 39 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 129 / 451 |
| Version history: | 2 change(s) |
| Referenced in: | [show references] |