148 lines
5.4 KiB
Django/Jinja
148 lines
5.4 KiB
Django/Jinja
// Generated file -- DO NOT MODIFY.
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#include "{{file}}.h"
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namespace {
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const uint64_t header_size = 24; // 4x uint32, 1x uint64
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struct ExtPointer {
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uint32_t offset;
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uint32_t length;
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};
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void CheckHeader(const glcr::ByteBuffer& bytes) {
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// TODO: Check ident.
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// TODO: Parse core size.
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// TODO: Parse extension size.
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// TODO: Check CRC32
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// TODO: Parse options.
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}
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void WriteHeader(glcr::ByteBuffer& bytes, uint64_t offset, uint32_t core_size, uint32_t extension_size) {
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bytes.WriteAt<uint32_t>(offset + 0, 0xDEADBEEF); // TODO: Chose a more unique ident sequence.
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bytes.WriteAt<uint32_t>(offset + 4, core_size);
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bytes.WriteAt<uint32_t>(offset + 8, extension_size);
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bytes.WriteAt<uint32_t>(offset + 12, 0); // TODO: Calculate CRC32.
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bytes.WriteAt<uint64_t>(offset + 16, 0); // TODO: Add options.
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}
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} // namespace
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{%- for message in messages %}
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void {{message.name}}::ParseFromBytes(const glcr::ByteBuffer& bytes, uint64_t offset) {
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CheckHeader(bytes);
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{%- for field in message.fields %}
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// Parse {{field.name}}.
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{%- if field.type == Type.U64 %}
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set_{{field.name}}(bytes.At<uint64_t>(offset + header_size + (8 * {{loop.index0}})));
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{%- elif field.type == Type.I64 %}
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set_{{field.name}}(bytes.At<int64_t>(offset + header_size + (8 * {{loop.index0}})));
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{%- elif field.type == Type.STRING %}
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auto {{field.name}}_pointer = bytes.At<ExtPointer>(offset + header_size + (8 * {{loop.index0}}));
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set_{{field.name}}(bytes.StringAt(offset + {{field.name}}_pointer.offset, {{field.name}}_pointer.length));
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{%- elif field.type == Type.CAPABILITY %}
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// FIXME: Implement in-buffer capabilities for inprocess serialization.
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set_{{field.name}}(0);
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{%- else %}
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// TODO: Unimplemented parsing {{field.type}}
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{%- endif %}
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{%- endfor %}
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}
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void {{message.name}}::ParseFromBytes(const glcr::ByteBuffer& bytes, uint64_t offset, const glcr::CapBuffer& caps) {
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CheckHeader(bytes);
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{%- for field in message.fields %}
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// Parse {{field.name}}.
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{%- if field.type == Type.U64 %}
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set_{{field.name}}(bytes.At<uint64_t>(offset + header_size + (8 * {{loop.index0}})));
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{%- elif field.type == Type.I64 %}
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set_{{field.name}}(bytes.At<int64_t>(offset + header_size + (8 * {{loop.index0}})));
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{%- elif field.type == Type.STRING %}
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auto {{field.name}}_pointer = bytes.At<ExtPointer>(offset + header_size + (8 * {{loop.index0}}));
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set_{{field.name}}(bytes.StringAt(offset + {{field.name}}_pointer.offset, {{field.name}}_pointer.length));
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{%- elif field.type == Type.CAPABILITY %}
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uint64_t {{field.name}}_ptr = bytes.At<uint64_t>(offset + header_size + (8 * {{loop.index0}}));
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set_{{field.name}}(caps.At({{field.name}}_ptr));
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{%- else %}
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// TODO: Unimplemented parsing {{field.type}}
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{%- endif %}
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{%- endfor %}
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}
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uint64_t {{message.name}}::SerializeToBytes(glcr::ByteBuffer& bytes, uint64_t offset) const {
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uint32_t next_extension = header_size + 8 * {{ message.fields | length }};
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const uint32_t core_size = next_extension;
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{%- for field in message.fields %}
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// Write {{field.name}}.
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{%- if field.type == Type.U64 %}
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bytes.WriteAt<uint64_t>(offset + header_size + (8 * {{loop.index0}}), {{field.name}}());
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{%- elif field.type == Type.I64 %}
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bytes.WriteAt<int64_t>(offset + header_size + (8 * {{loop.index0}}), {{field.name}}());
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{%- elif field.type == Type.STRING %}
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ExtPointer {{field.name}}_ptr{
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.offset = next_extension,
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// FIXME: Check downcast of str length.
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.length = (uint32_t){{field.name}}().length(),
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};
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bytes.WriteStringAt(offset + next_extension, {{field.name}}());
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next_extension += {{field.name}}_ptr.length;
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bytes.WriteAt<ExtPointer>(offset + header_size + (8 * {{loop.index0}}), {{field.name}}_ptr);
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{%- elif field.type == Type.CAPABILITY %}
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// FIXME: Implement inbuffer capabilities.
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bytes.WriteAt<uint64_t>(offset + header_size + (8 * {{loop.index0}}), 0);
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{%- else %}
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// TODO: Unimplemented serialization {{field.type}}
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{%- endif %}
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{%- endfor %}
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// The next extension pointer is the length of the message.
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WriteHeader(bytes, offset, core_size, next_extension);
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return next_extension;
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}
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uint64_t {{message.name}}::SerializeToBytes(glcr::ByteBuffer& bytes, uint64_t offset, glcr::CapBuffer& caps) const {
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uint32_t next_extension = header_size + 8 * {{ message.fields | length}};
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const uint32_t core_size = next_extension;
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uint64_t next_cap = 0;
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{%- for field in message.fields %}
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// Write {{field.name}}.
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{%- if field.type == Type.U64 %}
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bytes.WriteAt<uint64_t>(offset + header_size + (8 * {{loop.index0}}), {{field.name}}());
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{%- elif field.type == Type.I64 %}
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bytes.WriteAt<int64_t>(offset + header_size + (8 * {{loop.index0}}), {{field.name}}());
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{%- elif field.type == Type.STRING %}
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ExtPointer {{field.name}}_ptr{
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.offset = next_extension,
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// FIXME: Check downcast of str length.
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.length = (uint32_t){{field.name}}().length(),
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};
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bytes.WriteStringAt(offset + next_extension, {{field.name}}());
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next_extension += {{field.name}}_ptr.length;
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bytes.WriteAt<ExtPointer>(offset + header_size + (8 * {{loop.index0}}), {{field.name}}_ptr);
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{%- elif field.type == Type.CAPABILITY %}
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caps.WriteAt(next_cap, {{field.name}}());
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bytes.WriteAt<uint64_t>(offset + header_size + (8 * {{loop.index0}}), next_cap++);
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{%- else %}
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// TODO: Unimplemented serialization {{field.type}}
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{%- endif %}
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{%- endfor %}
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// The next extension pointer is the length of the message.
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WriteHeader(bytes, offset, core_size, next_extension);
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return next_extension;
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}
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{%- endfor %}
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