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Move Error struct to pkg/errors package for use in multiple places.
Move linuxerr static definitions under pkg/errors/linuxerr.
Add a lookup list for quick lookup of *errors.Error by errno. This is useful
when converting syserror errors and unix.Errno/syscall.Errrno values to
*errors.Error.
Update benchmarks routines to include conversions.
The below benchmarks show *errors.Error usage to be comparable to using
unix.Errno.
BenchmarkAssignUnix
BenchmarkAssignUnix-32 787875022 1.284 ns/op
BenchmarkAssignLinuxerr
BenchmarkAssignLinuxerr-32 1000000000 1.209 ns/op
BenchmarkAssignSyserror
BenchmarkAssignSyserror-32 759269229 1.429 ns/op
BenchmarkCompareUnix
BenchmarkCompareUnix-32 1000000000 1.310 ns/op
BenchmarkCompareLinuxerr
BenchmarkCompareLinuxerr-32 1000000000 1.241 ns/op
BenchmarkCompareSyserror
BenchmarkCompareSyserror-32 147196165 8.248 ns/op
BenchmarkSwitchUnix
BenchmarkSwitchUnix-32 373233556 3.664 ns/op
BenchmarkSwitchLinuxerr
BenchmarkSwitchLinuxerr-32 476323929 3.294 ns/op
BenchmarkSwitchSyserror
BenchmarkSwitchSyserror-32 39293408 29.62 ns/op
BenchmarkReturnUnix
BenchmarkReturnUnix-32 1000000000 0.5042 ns/op
BenchmarkReturnLinuxerr
BenchmarkReturnLinuxerr-32 1000000000 0.8152 ns/op
BenchmarkConvertUnixLinuxerr
BenchmarkConvertUnixLinuxerr-32 739948875 1.547 ns/op
BenchmarkConvertUnixLinuxerrZero
BenchmarkConvertUnixLinuxerrZero-32 977733974 1.489 ns/op
PiperOrigin-RevId: 379806801
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PiperOrigin-RevId: 373265454
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Based on the guidelines at
https://opensource.google.com/docs/releasing/authors/.
1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./'
2. Manual fixup of "Google Inc" references.
3. Add AUTHORS file. Authors may request to be added to this file.
4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS.
Fixes #209
PiperOrigin-RevId: 245823212
Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
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Using linux.Errno as an error doesn't work very well as none of the sentry code
expects error to contain a linux.Errno.
This moves using syserr.Error.ToLinux as an error in a syscall handler from a
runtime error to a compile error.
PiperOrigin-RevId: 227744312
Change-Id: Iea63108a5b198296c908614e09c01733dd684da0
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PiperOrigin-RevId: 217951017
Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
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PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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