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()):
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? 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outdated, is it recommendable to upgrade to the latest version?)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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