On Thu, Jan 30, 2014 at 6:48 AM, Øyvind Bakken <oyv...@gmail.com> wrote:
> We have a protobuf message defined in the following way:
>
> message ModuleEntry
> {
> optional uint32 id = 1;
> optional string name = 2;
> optional uint32 type = 3;
> repeated ParameterEntry parameter = 4;
> repeated ModuleEntry subModules = 5;
> optional uint32 usage = 6;
> optional string description = 7;
> }
>
> The message ModuleEntry can include several other ModuleEntrys
> (submodules). One of these submodules can again include several
> ParameterEntrys:
>
> message ParameterEntry
> {
> required uint32 id = 1;
> optional ParameterDataType dataType = 2;
> optional ParameterType type = 3 [default = MEASUREMENT];
> optional string name = 4;
> optional int32 integerData = 5;
> optional double doubleData = 6;
> optional string unit = 7;
>
> enum DynamicSimulation
> {
> STATIC = 0;
> DYNAMIC = 1;
> }
> enum ParameterType
> {
> MEASUREMENT = 0;
> CONFIGURABLE = 1;
> INPUT = 2;
> }
> }
>
> Our issue is appearing when we are increasing the number of
> ParameterEntrys for a submodule over a certain limit (from 18 to 19). The
> program then crashes with the following error message:
>
> libprotobuf FATAL ../build/include/google/protobuf/repeated_field.h:659]
> CHECK failed: (index) < (size()): terminate called after throwing an
> instance of 'google::protobuf::FatalException'
>
> what(): CHECK failed: (index) < (size()):
>
You should check the stack trace and see why it's called with an
out-of-band index.
>
>
> I have searched our code to find if we have set any constraints on array
> size or similar, but it does not seem so. Is there any limitation to
> Protobuf that is causing this behavior, i.e. a max number of repeated
> fields?
>
There is no such limit in protobuf.
> It seems that the number of repeated fields for messages that are not
> submodules can be higher though, without crashes occuring. Also, decreasing
> the number of the given submodule, or the number of its parent module (to
> decrease the total data size) have no effect.
>
>
> We are using Protobuf version 2.4.1. (I guess this version is kind of
> outdated, is it recommendable to upgrade to the latest version?)
>
> Regards
>
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