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| author |  Philipp Wollermann <philwo@google.com> | 2018-03-26 09:06:29 -0700 |
|---|---|---|
| committer |  Copybara-Service <copybara-piper@google.com> | 2018-03-26 09:08:26 -0700 |
| commit | 656a0bab1e025ff3c27d595284a4bf1c5a8d8028 (patch) | |
| tree | 2307d1a23794923db1ab44e59f3e600abf380061 /third_party | |
| parent | 26e7280deecc11172c1b16637d513c2d0d242c09 (diff) | |
Big round of sandbox fixes / performance improvements.
- The number of stat() syscalls in the SymlinkedSandboxedSpawn was way too high. Do less, feel better.
- When using --experimental_sandbox_base, ensure that symlinks in the path are resolved. Before this, you had to check whether on your system /dev/shm is a symlink to /run/shm and then use that instead. Now it no longer matters, as symlinks are resolved.
- Remove an unnecessary directory creation from each sandboxed invocation. Turns out that the "tmpdir" that we created was no longer used after some changes to Bazel's TMPDIR handling.
- Use simpler sandbox paths, by using the unique ID for each Spawn provided by SpawnExecutionPolicy instead of a randomly generated temp folder name. This also saves a round-trip from our VFS to NIO and back. Clean up the sandbox base before each build to ensure that the unique IDs are actually unique. ;)
- Use Java 8's Process#isAlive to check whether a process is alive instead of trying to get the exitcode and catching an exception.
Closes #4913.
PiperOrigin-RevId: 190472170
Diffstat (limited to 'third_party')
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