1 #include "syslib.h" 2 3 int sys_physcopy(src_proc, src_vir, dst_proc, dst_vir, bytes, flags) 4 endpoint_t src_proc; /* source process */ 5 vir_bytes src_vir; /* source virtual address */ 6 endpoint_t dst_proc; /* destination process */ 7 vir_bytes dst_vir; /* destination virtual address */ 8 phys_bytes bytes; /* how many bytes */ 9 int flags; /* copy flags */ 10 { 11 /* Transfer a block of data. The source and destination can each either be a 12 * process number or SELF (to indicate own process number). Virtual addresses 13 * are offsets within LOCAL_SEG (text, stack, data), or BIOS_SEG. 14 * Physicall addressing is also possible with PHYS_SEG. 15 */ 16 17 message copy_mess; 18 19 if (bytes == 0L) return(OK); 20 copy_mess.m_lsys_krn_sys_copy.src_endpt = src_proc; 21 copy_mess.m_lsys_krn_sys_copy.src_addr = src_vir; 22 copy_mess.m_lsys_krn_sys_copy.dst_endpt = dst_proc; 23 copy_mess.m_lsys_krn_sys_copy.dst_addr = dst_vir; 24 copy_mess.m_lsys_krn_sys_copy.nr_bytes = bytes; 25 copy_mess.m_lsys_krn_sys_copy.flags = flags; 26 27 return(_kernel_call(SYS_PHYSCOPY, ©_mess)); 28 } 29