aclrtMemGetAccess
Applicable Products
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Function
Obtains the memory access permission.
Prototype
1 | aclError aclrtMemGetAccess(void *virPtr, aclrtMemLocation *location, uint64_t *flag) |
Parameters
Parameter |
Input/Output |
Description |
|---|---|---|
virPtr |
Input |
Start address of the virtual memory. The value must be the same as the value of virPtr in the aclrtMapMem API. |
location |
Input |
Memory location. For details about the type definition, see aclrtMemLocation. Currently, aclrtMemLocation.type can only be set to ACL_MEM_LOCATION_TYPE_HOST or ACL_MEM_LOCATION_TYPE_DEVICE. If aclrtMemLocation.type is set to ACL_MEM_LOCATION_TYPE_HOST, aclrtMemLocation.id is invalid and can be fixed at 0. |
flag |
Output |
Memory access protection flag. |
Returns
0 on success; otherwise, failure. For details, see aclError.