1 // Custom options for defining:
2 // - Maximum size of string/bytes
3 // - Maximum number of elements in array
5 // These are used by nanopb to generate statically allocable structures
6 // for memory-limited environments.
8 import "google/protobuf/descriptor.proto";
11 FT_DEFAULT = 0; // Automatically decide field type, generate static field if possible.
12 FT_CALLBACK = 1; // Always generate a callback field.
13 FT_STATIC = 2; // Generate a static field or raise an exception if not possible.
16 message NanoPBOptions {
17 optional int32 max_size = 1;
18 optional int32 max_count = 2;
19 optional FieldType type = 3 [default = FT_DEFAULT];
22 // Protocol Buffers extension number registry
23 // --------------------------------
25 // Contact: Petteri Aimonen <jpa@kapsi.fi>
26 // Web site: http://kapsi.fi/~jpa/nanopb
27 // Extensions: 1010 (all types)
28 // --------------------------------
30 extend google.protobuf.FileOptions {
31 optional NanoPBOptions nanopb_fileopt = 1010;
34 extend google.protobuf.MessageOptions {
35 optional NanoPBOptions nanopb_msgopt = 1010;
38 extend google.protobuf.FieldOptions {
39 optional NanoPBOptions nanopb = 1010;