6e9e532927
Also add note about the 'packed' message option being incompatible with CPUs that do not support unaligned access. Update issue 12 Status: FixedInGit Update issue 77 Status: FixedInGit
69 lines
2.1 KiB
Protocol Buffer
69 lines
2.1 KiB
Protocol Buffer
// Custom options for defining:
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// - Maximum size of string/bytes
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// - Maximum number of elements in array
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//
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// These are used by nanopb to generate statically allocable structures
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// for memory-limited environments.
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import "google/protobuf/descriptor.proto";
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option java_package = "fi.kapsi.koti.jpa.nanopb";
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enum FieldType {
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FT_DEFAULT = 0; // Automatically decide field type, generate static field if possible.
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FT_CALLBACK = 1; // Always generate a callback field.
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FT_STATIC = 2; // Generate a static field or raise an exception if not possible.
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FT_IGNORE = 3; // Ignore the field completely.
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}
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// This is the inner options message, which basically defines options for
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// a field. When it is used in message or file scope, it applies to all
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// fields.
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message NanoPBOptions {
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// Allocated size for 'bytes' and 'string' fields.
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optional int32 max_size = 1;
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// Allocated number of entries in arrays ('repeated' fields)
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optional int32 max_count = 2;
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// Force type of field (callback or static allocation)
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optional FieldType type = 3 [default = FT_DEFAULT];
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// Use long names for enums, i.e. EnumName_EnumValue.
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optional bool long_names = 4 [default = true];
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// Add 'packed' attribute to generated structs.
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// Note: this cannot be used on CPUs that break on unaligned
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// accesses to variables.
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optional bool packed_struct = 5 [default = false];
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}
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// Extensions to protoc 'Descriptor' type in order to define options
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// inside a .proto file.
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//
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// Protocol Buffers extension number registry
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// --------------------------------
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// Project: Nanopb
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// Contact: Petteri Aimonen <jpa@kapsi.fi>
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// Web site: http://kapsi.fi/~jpa/nanopb
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// Extensions: 1010 (all types)
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// --------------------------------
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extend google.protobuf.FileOptions {
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optional NanoPBOptions nanopb_fileopt = 1010;
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}
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extend google.protobuf.MessageOptions {
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optional NanoPBOptions nanopb_msgopt = 1010;
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}
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extend google.protobuf.EnumOptions {
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optional NanoPBOptions nanopb_enumopt = 1010;
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}
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extend google.protobuf.FieldOptions {
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optional NanoPBOptions nanopb = 1010;
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}
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