Copyright ©1995 by NeXT Computer, Inc. All Rights Reserved.
NXEncoding |
Adopted By: | a private class | |
Declared In: | remote/transport.h |
Protocol Description |
An object that implements the NXEncoding protocol is passed as the portal argument for the encodeUsing: message to distribute an object that adopts the NXTransport protocol. The object implementing the encodeUsing: method should send the portal object messages from the NXEncoding protocol to encode the data required to instantiate a copy of the object on the other end of the connection.
Every method in the NXEncoding protocol has a corresponding method in the NXDecoding protocol that will be used to receive encoded data. See the Distributed Objects introduction for more information. |
Instance Methods |
encodeBytes:count: |
encodeBytes:(const void *)buffer count:(int)count |
Encodes the buffer (of size count bytes) indicated by buffer. |
encodeData:ofType: |
encodeData:(void *)data ofType:(const char *)type |
Encodes the data structure pointed to by data, whose fields are indicated by the character string type, consisting of the following values: |
Format Character | Data Type | |
c | char | |
s | short | |
i | int | |
f | float | |
d | double | |
@ | id | |
* | char * | |
% | NXAtom | |
: | SEL | |
! | int; corresponding data won't be read or written | |
{<type>} | struct | |
[<count><type>] | array |
encodeMachPort: |
encodeMachPort:(port_t)port |
Encodes the Mach port port. |
encodeObject: |
encodeObject:anObject |
Usually encodes a proxy to anObject. The object to be encoded is determined by sending anObject an encodeRemotelyFor:freeAfterEncoding:isBycopy: message, which will, by default, return a proxy to anObject. |
encodeObjectBycopy: |
encodeObjectBycopy:anObject |
Usually encodes anObject, so that a copy will be instantiated on the other end of the connection; the object to be encoded is determined by sending anObject an encodeRemotelyFor:freeAfterEncoding:isBycopy: message. anObject must conform to the NXTransport protocol. |
encodeVM:count: |
encodeVM:(const void *)bytes count:(int)count |
Encodes memory (of count bytes) that was allocated with vm_allocate(). |