. added safecopies.c: these are library functions to maintain grant tables in own address space . sys_safecopy.c: interfaces to kernel calls to perform safe copy functions in from or to foreign process . changes in i/o fields (type merged with request) reflected in library functions (sys_out.c, sys_vinb.c, sys_vinl.c, sys_vinw.c, sys_voutb.c, sys_voutl.c, sys_voutw.c) . type merged with request in sys_sdevio, also now accepts offset which is used when a grant is specified (the _DIO_SAFE subtype) . system printf() function changed to send DIAGNOSTICS_S messages, which specify a grant id instead of a direct address for the buffer to be printed; tty and log can then safecopy the buffer
26 lines
841 B
C
26 lines
841 B
C
#include "syslib.h"
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/*===========================================================================*
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* sys_sdevio *
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*===========================================================================*/
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PUBLIC int sys_sdevio(req, port, proc_nr, buffer, count, offset)
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int req; /* request: DIO_{IN,OUT}PUT_* */
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long port; /* port address to read from */
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endpoint_t proc_nr; /* process where buffer is */
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void *buffer; /* pointer to buffer */
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int count; /* number of elements */
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vir_bytes offset; /* offset from grant */
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{
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message m_io;
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int result;
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m_io.DIO_REQUEST = req;
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m_io.DIO_PORT = port;
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m_io.DIO_VEC_ENDPT = proc_nr;
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m_io.DIO_VEC_ADDR = buffer;
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m_io.DIO_VEC_SIZE = count;
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m_io.DIO_OFFSET = offset;
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return(_taskcall(SYSTASK, SYS_SDEVIO, &m_io));
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}
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