1 /* The kernel call implemented in this file: 2 * m_type: SYS_STATECTL 3 * 4 * The parameters for this kernel call are: 5 * m_lsys_krn_sys_statectl.request (state control request) 6 */ 7 8 #include "kernel/system.h" 9 10 #if USE_STATECTL 11 12 /*===========================================================================* 13 * do_statectl * 14 *===========================================================================*/ 15 int do_statectl(struct proc * caller, message * m_ptr) 16 { 17 /* Handle sys_statectl(). A process has issued a state control request. */ 18 19 switch(m_ptr->m_lsys_krn_sys_statectl.request) 20 { 21 case SYS_STATE_CLEAR_IPC_REFS: 22 /* Clear IPC references for all the processes communicating 23 * with the caller. 24 */ 25 clear_ipc_refs(caller, EDEADSRCDST); 26 return(OK); 27 default: 28 printf("do_statectl: bad request %d\n", 29 m_ptr->m_lsys_krn_sys_statectl.request); 30 return EINVAL; 31 } 32 } 33 34 #endif /* USE_STATECTL */ 35