pSOSystem System Calls - Read

pSOS+ System Calls pt_retbuf
pt_retbuf Returns a buffer to the partition from which it came.
#include
unsigned long pt_retbuf(
unsigned long ptid, /* partition identifier */
void *bufaddr /* starting address of the buffer */
)
Description
Arguments
Return Value
Error Codes
This system call returns a buffer to the partition from which it was allocated.
Because the pSOS+ kernel does not keep track of buffer ownership, it is possible for
one task to get a buffer, and another task to return it.
ptid Specifies the partition ID of the buffer to return.
bufaddr Specifies the buffer’s starting address.
This system call returns 0 on success, or an error code on failure.
Hex Mnemonic Description
0x05 ERR_OBJDEL Partition has been deleted.
0x06 ERR_OBJID ptid is incorrect; failed validity
check.
0x07 ERR_OBJTYPE Object type doesn’t match object ID;
failed validity check.
0x2D ERR_BUFADDR Incorrect buffer starting address.
0x2F ERR_BUFFREE Buffer is already unallocated.
0x65 ERR_STALEID Object's node has failed.
pSOSystem System Calls 1-57
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