Kernel: Make TID's be unique PID's

This is a little strange, but it's how I understand things should work.

The first thread in a new process now has TID == PID.
Additional threads subsequently spawned in that process all have unique
TID's generated by the PID allocator. TIDs are now globally unique.

1 files changed, 1 insertions, 0 deletions

diff --git a/Kernel/Process.h b/Kernel/Process.h
index bcd9053182..acfb901266 100644
--- a/Kernel/Process.h
+++ b/Kernel/Process.h
@@ -310,6 +310,7 @@ private:
     friend class Region;
 
     Process(Thread*& first_thread, const String& name, uid_t, gid_t, pid_t ppid, RingLevel, RefPtr<Custody> cwd = nullptr, RefPtr<Custody> executable = nullptr, TTY* = nullptr, Process* fork_parent = nullptr);
+    static pid_t allocate_pid();
 
     Range allocate_range(VirtualAddress, size_t);