Compatibility with iOS

[mikesun]

Able to build on iOS but run into runtime issues.

Run into memory access issues (EXC_BAD_ACCESS) involving the allocator/deallocator macros, e.g.

#define YOJIMBO_NEW( a, T, ... ) ( new ( (a).Allocate( sizeof(T), __FILE__, __LINE__ ) ) T(__VA_ARGS__) )

Stack trace:

#0    0x0000000103c6b7fc in yojimbo::ClientServerPacketFactory::CreatePacket(int) at /Users/Dom/Desktop/libyojimbo/./yojimbo_client_server_packets.h:263
#1    0x0000000103c7fb04 in yojimbo::PacketFactory::Create(int) at /Users/Dom/Desktop/libyojimbo/yojimbo_packet.cpp:266
#2    0x0000000103c64b54 in yojimbo::Client::CreatePacket(int) at /Users/Dom/Desktop/libyojimbo/yojimbo_client.cpp:305
#3    0x0000000103c655f0 in yojimbo::Client::SendPackets() at /Users/Dom/Desktop/libyojimbo/yojimbo_client.cpp:321
#4    0x00000001000596d8 in ::copr_pump_frame(double *, double) at /Users/Dom/Desktop/interspace-ios/Classes/copr_client.cpp:268
#5    0x0000000100059510 in ::copr_connect(double *, double, uint32_t, uint64_t, const char *, uint16_t) at /Users/Dom/Desktop/interspace-ios/Classes/copr_client.cpp:125
#6    0x00000001001e9b20 in ::CoprClient_copr_connect_m3420134110(Il2CppObject *, double *, double, uint32_t, uint64_t, String_t *, uint16_t, const MethodInfo *) at /Users/Dom/Desktop/interspace-ios/Classes/Native/Bulk_Assembly-CSharp_0.cpp:23636
#7    0x00000001001e668c in ::CoprClient_CoprThreadRun_m141907639(Il2CppObject *, const MethodInfo *) at /Users/Dom/Desktop/interspace-ios/Classes/Native/Bulk_Assembly-CSharp_0.cpp:23067
#8    0x00000001031a4b54 in ::ThreadStart_Invoke_m225334093(ThreadStart_t124146534 *, const MethodInfo *) at /Users/Dom/Desktop/interspace-ios/Classes/Native/Bulk_mscorlib_7.cpp:45558
#9    0x0000000103927838 in RuntimeInvoker_Void_t2863195528(MethodInfo const*, void*, void**) at /Users/Dom/Desktop/interspace-ios/Classes/Native/Il2CppInvokerTable.cpp:1065
#10    0x00000001045ff064 in il2cpp::vm::Runtime::DelegateInvoke(Il2CppDelegate*, void**, Il2CppException**) ()
#11    0x00000001045d9248 in ::RunThreadWrapper() at /Users/builduser/buildslave/unity/build/Runtime/Threads/Thread.cpp:57
#12    0x00000001045e16e0 in ::RunThreadWrapper() at /Users/builduser/buildslave/unity/build/Runtime/Threads/Thread.cpp:52
#13    0x00000001045e74ec in il2cpp::os::ThreadImpl::ThreadStartWrapper(void*) ()
#14    0x000000018480575c in _pthread_body ()
#15    0x000000018480566c in _pthread_start ()
#16    0x0000000184802d84 in thread_start ()

From debugger:

In a hack, replaced the allocator macros with just plain new and delete which seems to get around the EXC_BAD_ACCESS issue, but clients are unable to establish connections with the server.

The code works on Mac (x86_64), Linux (x86_64) and Windows (x86_64).

[gafferongames]

Thanks for reporting this!

Could you possibly create a minimal xcode project that reproduces this issue in an iOS build?

cheers

• Glenn

[gafferongames]

Out of curiousity, is your project multithreaded?

[mikesun]

Have isolated the issue to be with Unity using the library. Will update when things are figured out.

Yes, project is multi-threaded, but accesses libyojimbo in safe manner.

[gafferongames]

OK sounds good. Let me know what you find!