fix(vsock): restore listener after accept#2434
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After accepting a connection, move the accepted socket to an ephemeral port and reset the listener entry to Listen state. Track the listen port separately in Socket so subsequent accept calls always find the listener entry regardless of how many connections have been accepted. Fixes hermit-os#2433
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As a reference I made this pull request as well with a regression test: |
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Benchmark Results
Details
| Benchmark | Current: 1391ad4 | Previous: ede71c0 | Performance Ratio |
|---|---|---|---|
| startup_benchmark Build Time | 106.03 s |
99.20 s |
1.07 ❗ |
| startup_benchmark File Size | 0.76 MB |
0.76 MB |
1.00 ❗ |
| Startup Time - 1 core | 0.94 s (±0.04 s) |
0.94 s (±0.04 s) |
1.01 |
| Startup Time - 2 cores | 0.95 s (±0.05 s) |
0.96 s (±0.05 s) |
0.99 |
| Startup Time - 4 cores | 0.96 s (±0.04 s) |
0.96 s (±0.04 s) |
1.00 |
| multithreaded_benchmark Build Time | 111.97 s |
107.20 s |
1.04 ❗ |
| multithreaded_benchmark File Size | 0.86 MB |
0.86 MB |
1.00 ❗ |
| Multithreaded Pi Efficiency - 2 Threads | 85.13 % (±19.04 %) |
91.00 % (±14.55 %) |
0.94 |
| Multithreaded Pi Efficiency - 4 Threads | 41.93 % (±8.82 %) |
45.27 % (±7.73 %) |
0.93 |
| Multithreaded Pi Efficiency - 8 Threads | 23.00 % (±5.01 %) |
24.88 % (±3.26 %) |
0.92 |
| micro_benchmarks Build Time | 88.84 s |
92.81 s |
0.96 ❗ |
| micro_benchmarks File Size | 0.86 MB |
0.86 MB |
1.00 ❗ |
| Scheduling time - 1 thread | 69.04 ticks (±4.75 ticks) |
68.53 ticks (±3.92 ticks) |
1.01 |
| Scheduling time - 2 threads | 39.29 ticks (±4.67 ticks) |
39.67 ticks (±4.24 ticks) |
0.99 |
| Micro - Time for syscall (getpid) | 2.91 ticks (±0.27 ticks) |
2.95 ticks (±0.28 ticks) |
0.99 |
| Memcpy speed - (built_in) block size 4096 | 75842.73 MByte/s (±52602.22 MByte/s) |
79590.12 MByte/s (±55157.77 MByte/s) |
0.95 |
| Memcpy speed - (built_in) block size 1048576 | 29986.48 MByte/s (±24458.18 MByte/s) |
29900.58 MByte/s (±24427.92 MByte/s) |
1.00 |
| Memcpy speed - (built_in) block size 16777216 | 27308.99 MByte/s (±22620.07 MByte/s) |
29198.54 MByte/s (±24141.87 MByte/s) |
0.94 |
| Memset speed - (built_in) block size 4096 | 76044.15 MByte/s (±52757.44 MByte/s) |
79808.67 MByte/s (±55316.96 MByte/s) |
0.95 |
| Memset speed - (built_in) block size 1048576 | 30707.63 MByte/s (±24874.96 MByte/s) |
30660.50 MByte/s (±24865.67 MByte/s) |
1.00 |
| Memset speed - (built_in) block size 16777216 | 28080.64 MByte/s (±23094.09 MByte/s) |
29947.79 MByte/s (±24563.56 MByte/s) |
0.94 |
| Memcpy speed - (rust) block size 4096 | 72737.83 MByte/s (±50909.39 MByte/s) |
71838.02 MByte/s (±50156.20 MByte/s) |
1.01 |
| Memcpy speed - (rust) block size 1048576 | 30132.90 MByte/s (±24534.94 MByte/s) |
29850.23 MByte/s (±24412.52 MByte/s) |
1.01 |
| Memcpy speed - (rust) block size 16777216 | 27539.62 MByte/s (±22686.22 MByte/s) |
29179.09 MByte/s (±24119.28 MByte/s) |
0.94 |
| Memset speed - (rust) block size 4096 | 72916.97 MByte/s (±51028.21 MByte/s) |
72078.48 MByte/s (±50299.01 MByte/s) |
1.01 |
| Memset speed - (rust) block size 1048576 | 30882.95 MByte/s (±24963.32 MByte/s) |
30581.94 MByte/s (±24812.57 MByte/s) |
1.01 |
| Memset speed - (rust) block size 16777216 | 28297.31 MByte/s (±23146.26 MByte/s) |
29935.12 MByte/s (±24543.49 MByte/s) |
0.95 |
| alloc_benchmarks Build Time | 86.24 s |
85.84 s |
1.00 ❗ |
| alloc_benchmarks File Size | 0.84 MB |
0.84 MB |
1.00 ❗ |
| Allocations - Allocation success | 100.00 % |
100.00 % |
1 |
| Allocations - Deallocation success | 100.00 % |
100.00 % |
1 |
| Allocations - Pre-fail Allocations | 100.00 % |
100.00 % |
1 |
| Allocations - Average Allocation time | 4280.39 Ticks (±509.58 Ticks) |
4581.75 Ticks (±1166.54 Ticks) |
0.93 |
| Allocations - Average Allocation time (no fail) | 4280.39 Ticks (±509.58 Ticks) |
4581.75 Ticks (±1166.54 Ticks) |
0.93 |
| Allocations - Average Deallocation time | 717.80 Ticks (±160.90 Ticks) |
878.84 Ticks (±180.10 Ticks) |
0.82 |
| mutex_benchmark Build Time | 85.96 s |
101.79 s |
0.84 ❗ |
| mutex_benchmark File Size | 0.87 MB |
0.87 MB |
1.00 ❗ |
| Mutex Stress Test Average Time per Iteration - 1 Threads | 13.02 ns (±0.84 ns) |
13.22 ns (±0.73 ns) |
0.98 |
| Mutex Stress Test Average Time per Iteration - 2 Threads | 16.92 ns (±8.77 ns) |
19.06 ns (±1.33 ns) |
0.89 |
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After accepting a connection, move the accepted socket to an ephemeral port and reset the listener entry to Listen state. Track the listen port separately in Socket so subsequent accept calls always find the listener entry regardless of how many connections have been accepted.
Fixes #2433