28 lines
1 KiB
C
28 lines
1 KiB
C
#include "syslib.h"
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int sys_physcopy(src_proc, src_vir, dst_proc, dst_vir, bytes, flags)
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endpoint_t src_proc; /* source process */
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vir_bytes src_vir; /* source virtual address */
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endpoint_t dst_proc; /* destination process */
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vir_bytes dst_vir; /* destination virtual address */
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phys_bytes bytes; /* how many bytes */
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int flags; /* copy flags */
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{
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/* Transfer a block of data. The source and destination can each either be a
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* process number or SELF (to indicate own process number). Virtual addresses
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* are offsets within LOCAL_SEG (text, stack, data), or BIOS_SEG.
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* Physicall addressing is also possible with PHYS_SEG.
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*/
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message copy_mess;
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if (bytes == 0L) return(OK);
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copy_mess.m_lsys_krn_sys_copy.src_endpt = src_proc;
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copy_mess.m_lsys_krn_sys_copy.src_addr = src_vir;
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copy_mess.m_lsys_krn_sys_copy.dst_endpt = dst_proc;
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copy_mess.m_lsys_krn_sys_copy.dst_addr = dst_vir;
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copy_mess.m_lsys_krn_sys_copy.nr_bytes = bytes;
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copy_mess.m_lsys_krn_sys_copy.flags = flags;
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return(_kernel_call(SYS_PHYSCOPY, ©_mess));
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}
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