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Diffstat (limited to 'lib/ic/internal_doc/c-improvements-1.txt')
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diff --git a/lib/ic/internal_doc/c-improvements-1.txt b/lib/ic/internal_doc/c-improvements-1.txt new file mode 100644 index 0000000000..ccfdec7cbe --- /dev/null +++ b/lib/ic/internal_doc/c-improvements-1.txt @@ -0,0 +1,84 @@ +Peter Hogfeldt 2003-08-14 PA1 + +IC C BACK-ENDS IMPROVEMENTS + +1 C CLIENT + +1.1 Cast + + Each oneway operation roughly consists of the following code + parts: + + - encoding the cast message + - setting index of the out buffer to zero (1.1.1) + - encoding the magic (1.1.1) + - encoding a tuple header of size 2 (1.1.1) + - encoding '$gen_cast' (1.1.1) + - encoding the operation parameters (1.1.2) + - sending the cast message (1.1.3) + + Only (1.1.2) is unique for the operation in question. + +1.1.1 Todo + + Define functions: + + int oe_ei_encode_cast(CORBA_environment *) that performs (1.1.1) + + int oe_ei_cast(CORBA_environment *) that performs (1.1.3) + + This will reduce code size. + + As compiler options + + oe_ei_encode_cast(), and + oe_ei_cast() + + may be replaced by user defined functions. + +1.2 Call + + Each (non-oneway) operation roughly consists of the following code + parts: + + - encoding the call message + - setting index of the out buffer to zero (1.2.1) + - encoding the magic (1.2.1) + - encoding a tuple header of size 3 (1.2.1) + - encoding '$gen_call' (1.2.1) + - encoding a tuple header of size 2 (1.2.1) + - encoding the from pid (1.2.1) + - encoding the unique ref (1.2.1) + - encoding the operation parameters (1.2.2) + - sending the call message (1.2.3) + - receiving the reply message (1.2.3) + - decoding the reply parameters (1.2.4) + + Only (1.2.2) and (1.2.4) are unique for the operation in question. + +1.2.1 Todo + + Define functions: + + int oe_ei_encode_send(CORBA_environment *) that performs (1.2.1) + + int oe_ei_send_and_receive(CORBA_environment *) that performs (1.2.3) + + This will reduce code size. + + As compiler options + + oe_ei_encode_send(), and + oe_ei_send_and_receive() + + may be replaced by user defined function. + + +2 SERVER + + We do not provide any code for receiving operation messages, execute + operations, and send the result back. Should we not do that? + + + +
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