pSOSystem System Calls - Read

m_ext2int pSOS+ System Calls
m_ext2int Converts an external address into an internal address.
#include
unsigned long m_ext2int(
void *ext_addr, /* external reference */
void **int_addr /* local reference */
)
Description
Arguments
Return Value
Error Codes
This system call converts an external address into an internal address
corresponding to the calling node. A typical use for this conversion is by a node that
has received an address from another node that resides in a dual-ported memory
zone.
m_ext2int() is relevant only to systems with multiple processors connected by
dual-ported memory on a memory bus. Other users can disregard this call.
ext_addr Specifies the external address.
int_addr Points to the variable where m_ext2int() stores the
resultant internal address. If the external address is within a
dual-ported zone whose p-port is tied to the calling node,
then the internal address will be different. In all other cases,
the internal and external addresses will be the same.
This system call always returns 0.
None.
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