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genmsg: add a template for generating flight side serializers.

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Signed-off-by: Michael Hope <mlhx@google.com>
This commit is contained in:
Michael Hope 2015-05-27 05:25:17 +02:00
commit 6fc3926cd8
1 changed files with 40 additions and 0 deletions
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src/main/io/msg.h.template Normal file
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@# MSP encoder generator for Clearflight.
@# EmPy format. See http://www.alcyone.com/software/empy/ for more.
@#
// Generated by gencpp from file @(spec.package)/@(spec.short_name).msg
// DO NOT EDIT!
@{
import genmsp
env = genmsp.make_env(spec, msg_context, search_path)
}@
@# Generate the serializer for a message.
@[def serialize(spec, prefix='', indent='')]@
@[for field in spec.parsed_fields()]@
@{ctype = genmsp.get_type(field.type)}@
@[if ctype is None]@
@{child = genmsp.load_spec(field.base_type, spec, env)}@
@[if field.is_array]@
for (int i = 0; i < @genmsp.get_count(field); i++) {
@serialize(child, '{}[i].'.format(field.name), ' '*4)@
}
@[else]@
@serialize(child, '{}->'.format(field.name))@
@[end if]@
@[else]@
@[if field.is_array]@
@(indent)serialize@(ctype.encoder)s((const uint@(ctype.encoder)_t *)@prefix@field.name, @genmsp.get_count(field));
@[else]@
@(indent)serialize@(ctype.encoder)(@prefix@field.name);
@[end if]@
@[end if]@
@[end for]@
@[end def]@
// Respond to a @spec.short_name / MSP_@genmsp.to_caps(spec.short_name) command.
static void send@(spec.short_name)(@(', '.join(genmsp.generate_encoder_args(spec, env)))) {
uint8_t len = @(' + '.join(str(genmsp.get_length(x, spec, env)) for x in spec.parsed_fields()));
headSerialReply(len);
@serialize(spec)
}