tree 57fac6fb14c9f7897409b54b360afebef59c2e70
parent 860936d780d98a5968f40e66ca6ae800c67adbc3
author Glenn Kasten <gkasten@google.com> 1328494148 -0800
committer Glenn Kasten <gkasten@google.com> 1329157823 -0800

Factor out and speed up permission-checking code

Use the caching permission check for dump to save IPC.

Cache getpid() to save kernel call for other permission checks.

The C runtime library getpid() can't cache due to a fork
race condition, but we know that mediaserver doesn't fork.

Don't construct String16 on the stack.

Change-Id: I6be6161dae5155d39ba6ed6228e7683e67be34ed