What is the meaning of pid, uid and gids in Logcat Message?

Question

I get the following message in Android Logcat I/ActivityManager(59): Start proc com.abc.xyz:mnp for service com.abc.xyz/.contact.SomeService: pid=31198 uid=10036 gids={3003, 1015}.

What are the meanings of pid, uid and gids and numbers in front of them here?

Mutineer

Answer 1

These are standard Linux terms:

• pid = process ID
• uid = user ID of the application that owns that process
• gid = group IDs of the application that owns that process

Amerce

What exactly determines the uid under android? The application? Because every application gets an 'account'? If I write an app with 2 processes (declared in manifest with android:process=":..."), do they have the same uid but different pid? Thanks! – Weighting

@JacksOnF1re: "What exactly determines the uid under android?" -- by default, each app gets its own unique Linux UID. "If I write an app with 2 processes (declared in manifest with android:process=":..."), do they have the same uid but different pid?" -- yes. – Amerce