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Commit c2c48bc5 authored by Steven Moreland's avatar Steven Moreland
Browse files

getCallingPid: document when to use it 

Generally for debugging only, not for security reasons.
Needed to be documented for a long time.

Fixes: 383169393
Test: N/A
Change-Id: Id3c4a39832a115c5c20a25475fb28fbe896366c5
parent 31b8de43

core/java/android/os/Binder.java

+4 −1
Original line number Diff line number Diff line
@@ -313,7 +313,10 @@ public class Binder implements IBinder { 
     * If the current thread is not currently executing an incoming transaction,

     * then its own PID is returned.

     *

     * Warning: oneway transactions do not receive PID. Even if you expect

     * Warning do not use this as a security identifier! PID is unreliable

     * as it may be re-used. This should mostly be used for debugging.

     *

     * oneway transactions do not receive PID. Even if you expect

     * a transaction to be synchronous, a misbehaving client could send it

     * as a asynchronous call and result in a 0 PID here. Additionally, if

     * there is a race and the calling process dies, the PID may still be