CI: fix build

Author: Grok Compression

src/lib/codec/shared/Messenger.h

@@ -500,9 +500,11 @@ struct SharedMemoryManager
     }
     else
     {
-      // Non-creator: open existing segment, retry briefly if not yet created
-      const int maxRetries = 50;
-      const int retryDelayMs = 10;
+      // Non-creator: open existing segment, retry briefly if not yet created.
+      // Message buffers need longer waits (server subprocess may still be starting),
+      // data buffers are typically ready immediately (server creates before sending init).
+      const int maxRetries = 100;
+      const int retryDelayMs = 100;
       for(int attempt = 0; attempt < maxRetries; ++attempt)
       {
         *shm_fd = shm_open(name.c_str(), O_RDWR, 0666);

tests/CMakeLists.txt

@@ -60,6 +60,7 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
   target_link_libraries(grk_messenger_test rt)
 endif()
 add_test(NAME grk_messenger_test COMMAND grk_messenger_test)
+set_tests_properties(grk_messenger_test PROPERTIES RESOURCE_LOCK shm_grok)
 
 add_executable(grk_messenger_loopback grk_messenger_loopback.cpp)
 target_include_directories(grk_messenger_loopback PRIVATE
@@ -70,6 +71,7 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
   target_link_libraries(grk_messenger_loopback rt)
 endif()
 add_test(NAME grk_messenger_loopback COMMAND grk_messenger_loopback)
+set_tests_properties(grk_messenger_loopback PROPERTIES RESOURCE_LOCK shm_grok)
 
 add_executable(grk_shm_batch_compress grk_shm_batch_compress.cpp)
 target_include_directories(grk_shm_batch_compress PRIVATE