97 lines
3.9 KiB
C
97 lines
3.9 KiB
C
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//* Copyright 2017 The NXT Authors
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//*
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//* Licensed under the Apache License, Version 2.0 (the "License");
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//* you may not use this file except in compliance with the License.
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//* You may obtain a copy of the License at
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//*
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//* http://www.apache.org/licenses/LICENSE-2.0
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//*
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//* Unless required by applicable law or agreed to in writing, software
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//* distributed under the License is distributed on an "AS IS" BASIS,
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//* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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//* See the License for the specific language governing permissions and
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//* limitations under the License.
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#ifndef WIRE_WIRECMD_AUTOGEN_H_
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#define WIRE_WIRECMD_AUTOGEN_H_
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#include <nxt/nxt.h>
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namespace nxt {
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namespace wire {
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//* Enum used as a prefix to each command on the wire format.
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enum class WireCmd : uint32_t {
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{% for type in by_category["object"] %}
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{% for method in type.methods %}
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{{as_MethodSuffix(type.name, method.name)}},
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{% endfor %}
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{{as_MethodSuffix(type.name, Name("destroy"))}},
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{% endfor %}
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};
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{% for type in by_category["object"] %}
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{% for method in type.methods %}
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{% set Suffix = as_MethodSuffix(type.name, method.name) %}
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//* Structure for the wire format of each of the commands. Parameters passed by value
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//* are embedded directly in the structure. Other parameters are assumed to be in the
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//* memory directly following the structure in the buffer. With value parameters the
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//* structure can compute how much buffer size it needs and where the start of non-value
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//* parameters is in the buffer.
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struct {{Suffix}}Cmd {
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//* Start the structure with the command ID, so that casting to WireCmd gives the ID.
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wire::WireCmd commandId = wire::WireCmd::{{Suffix}};
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uint32_t self;
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//* Commands creating objects say which ID the created object will be referred as.
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{% if method.return_type.category == "object" %}
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uint32_t resultId;
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{% endif %}
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//* Value types are directly in the command, objects being replaced with their IDs.
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{% for arg in method.arguments if arg.annotation == "value" %}
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{% if arg.type.category == "object" %}
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uint32_t {{as_varName(arg.name)}};
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{% else %}
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{{as_cType(arg.type.name)}} {{as_varName(arg.name)}};
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{% endif %}
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{% endfor %}
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//* const char* have their length embedded directly in the command.
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{% for arg in method.arguments if arg.length == "strlen" %}
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size_t {{as_varName(arg.name)}}Strlen;
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{% endfor %}
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//* The following commands do computation, provided the members for value parameters
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//* have been initialized.
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//* Compute how much buffer memory is required to hold the structure and all its arguments.
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size_t GetRequiredSize() const;
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//* Gets the pointer to the start of the buffer containing a non-value parameter.
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{% for get_arg in method.arguments if get_arg.annotation != "value" %}
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{% set ArgName = as_varName(get_arg.name) %}
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uint8_t* GetPtr_{{ArgName}}();
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const uint8_t* GetPtr_{{ArgName}}() const;
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{% endfor %}
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};
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{% endfor %}
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//* The command structure used when sending that an ID is destroyed.
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{% set Suffix = as_MethodSuffix(type.name, Name("destroy")) %}
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struct {{Suffix}}Cmd {
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wire::WireCmd commandId = wire::WireCmd::{{Suffix}};
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uint32_t objectId;
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size_t GetRequiredSize() const;
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};
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{% endfor %}
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}
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}
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#endif // WIRE_WIRECMD_AUTOGEN_H_
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