Starts a non-blocking copy.
a0tError | a0IFCopy( | | | |
| | a0tDMARegion | *region1, | |
| | a0tRequest | *request, | |
| | a0tDMARegion | *region2 );
| |
| Name | rd/wr | Description |
| region1 | read | DMA region to read. |
| request | write | Request descriptor to hold the status. |
| region2 | read | DMA region to write. |
This function starts a non-blocking copy from a specific DMA region region1 to another DMA region region2. It posts a request to read and write the remote data with their own format informations.
On return of this function, the variable pointed by request contains an opaque request that should be used later to wait or test the completion of the read operation.
| Error Code | Description |
A0ErrFailSend | It was not possible to send a request. | |
A0ErrFailReceive | It was not possible to receive a reply. | |
A0ErrOk| Successful completion. | |
a0IFCopyPart() a0IFRead() a0IFWrite() a0NewDMARegion() a0WaitRequest() a0TestRequest()