gecko-dev/ipc/ipdl/test/cxx/PTestHangs.ipdl

namespace mozilla {
namespace _ipdltest {

intr protocol PTestHangs {
both:
    intr StackFrame();

parent:
    async Nonce();

child:
    async Start();
    intr Hang();
    __delete__();


state START:
    send Start goto RACE;

state RACE:
    recv Nonce goto RACE1;
    call StackFrame goto RACE2;
state RACE1:
    call StackFrame goto FRAME2;
state RACE2:
    recv Nonce goto FRAME2;

// So as to test unwinding the RPC stack
state FRAME2: answer StackFrame goto FRAME3;
state FRAME3: call StackFrame goto FRAME4;
state FRAME4: answer StackFrame goto HANG;
state HANG:   call Hang goto DEATH;

state DEATH:
    send __delete__;
};

} // namespace _ipdltest
} // namespace mozilla