memory_object_data_initialize

Server Interface - Request that the default pager record initialization information for specified memory object.

SYNOPSIS

kern_return_t   memory_object_data_initialize
                (memory_object_t                  memory_object,
                 memory_object_control_t         memory_control,
                 vm_offset_t                             offset,
                 pointer_t                                 data);


kern_return_t   seqnos_memory_object_data_initialize
                (memory_object_t                  memory_object,
                 mach_port_seqno_t                        seqno,
                 memory_object_control_t         memory_control,
                 vm_offset_t                             offset,
                 pointer_t                                 data);

PARAMETERS

memory_object

[in abstract-memory-object (receive) right] The abstract memory object port that represents the memory object data, as supplied by the kernel in a memory_object_create call.

seqno

[in scalar] The sequence number of this message relative to the abstract memory object port.

memory_control

[in memory-cache-control send right] The memory cache control port to be used for a response by the memory manager. If the memory object has been supplied to more than one kernel, this parameter identifies the kernel that is making the call.

offset

[in scalar] The offset within the memory object.

data

[in pointer to dynamic array of bytes] The data that has been modified while cached in physical memory.

DESCRIPTION

A memory_object_data_initialize function is called as the result of a kernel message providing the default memory manager with initial data for a kernel-created memory object. If the memory manager already has supplied data (by a previous memory_object_data_initialize or memory_object_data_return), it should ignore this call. Otherwise, the call behaves the same as the memory_object_data_return call.

The kernel makes this call only to the default memory manager and only on temporary memory objects that it has created with memory_object_create.

RETURN VALUES

Only generic errors apply.

RELATED INFORMATION

Functions: memory_object_create, memory_object_data_return, memory_object_default_server, seqnos_memory_object_default_server.