subroutine cs_init character*12 csub0 integer*8 mtx common/mtxcom/mtx,ltrace,mtxstate,csub0 ltrace=0 mtxstate=0 csub0='**unlocked**' call fthread_mutex_init(mtx) return end subroutine cs_init subroutine cs_destroy character*12 csub0 integer*8 mtx common/mtxcom/mtx,ltrace,mtxstate,csub0 call fthread_mutex_destroy(mtx) return end subroutine cs_destroy subroutine th_create(sub) call fthread_create(sub,id) return end subroutine th_create subroutine th_exit call fthread_exit return end subroutine th_exit subroutine cs_lock(csub) character*(*) csub character*12 csub0 integer fthread_mutex_lock,fthread_mutex_trylock integer*8 mtx common/mtxcom/mtx,ltrace,mtxstate,csub0 n=fthread_mutex_trylock(mtx) if(n.ne.0) then ! Another thread has already locked the mutex n=fthread_mutex_lock(mtx) iz=index(csub0,' ') if(ltrace.ge.1) print*,'"',csub,'" requested mutex when "', & csub0(:iz-1),'" owned it.' endif mtxstate=1 csub0=csub if(ltrace.ge.3) print*,'Mutex locked by ',csub return end subroutine cs_lock subroutine cs_unlock character*12 csub0 integer*8 mtx common/mtxcom/mtx,ltrace,mtxstate,csub0 if(ltrace.ge.3) print*,'Mutex unlocked,',ltrace,mtx,mtxstate,csub0 mtxstate=0 call fthread_mutex_unlock(mtx) return end subroutine cs_unlock