/// <summary>
/// Tries to open a shared memory map.
/// </summary>
/// <param name="globalMemoryRegion"></param>
/// <param name="memoryRegionId"></param>
/// <param name="sharedMemoryMapView"></param>
/// <returns></returns>
public static bool TryOpenExisting(
this GlobalMemoryRegion globalMemoryRegion,
MlosInternal.MemoryRegionId memoryRegionId,
out SharedMemoryMapView sharedMemoryMapView)
{
MlosInternal.RegisteredMemoryRegionConfig.CodegenKey registeredMemoryLookupKey = default;
registeredMemoryLookupKey.MemoryRegionId = memoryRegionId;
// Locate shared memory region config.
//
SharedConfig <MlosProxyInternal.RegisteredMemoryRegionConfig> registeredMemoryRegionSharedConfig =
SharedConfigManager.Lookup(globalMemoryRegion.SharedConfigDictionary, registeredMemoryLookupKey);
if (!registeredMemoryRegionSharedConfig.HasSharedConfig)
{
sharedMemoryMapView = null;
return(false);
}
// Config exists, create a shared config memory region.
//
MlosProxyInternal.RegisteredMemoryRegionConfig registeredMemoryRegionConfig = registeredMemoryRegionSharedConfig.Config;
sharedMemoryMapView = SharedMemoryMapView.OpenExisting(
registeredMemoryRegionConfig.MemoryMapName.Value,
registeredMemoryRegionConfig.MemoryRegionSize);
return(true);
}
/// <summary>
/// Tries to open a named event.
/// </summary>
/// <param name="globalMemoryRegion"></param>
/// <param name="memoryRegionId"></param>
/// <param name="namedEvent"></param>
/// <returns></returns>
public static bool TryOpenExisting(
this GlobalMemoryRegion globalMemoryRegion,
MlosInternal.MemoryRegionId memoryRegionId,
out NamedEvent namedEvent)
{
MlosInternal.RegisteredNamedEventConfig.CodegenKey namedEventLookupKey = default;
namedEventLookupKey.MemoryRegionId = memoryRegionId;
// Locate named event config.
//
SharedConfig <MlosProxyInternal.RegisteredNamedEventConfig> registeredNamedEventSharedConfig =
SharedConfigManager.Lookup(globalMemoryRegion.SharedConfigDictionary, namedEventLookupKey);
if (!registeredNamedEventSharedConfig.HasSharedConfig)
{
namedEvent = null;
return(false);
}
// Config exists, create a named event.
//
MlosProxyInternal.RegisteredNamedEventConfig registeredNamedEventConfig = registeredNamedEventSharedConfig.Config;
namedEvent = NamedEvent.CreateOrOpen(registeredNamedEventConfig.EventName.Value);
return(true);
}
/// <summary>
/// Initialize GlobalMemoryRegion.
/// </summary>
/// <param name="globalMemoryRegion"></param>
/// <returns></returns>
public static GlobalMemoryRegion InitializeMemoryRegion(this GlobalMemoryRegion globalMemoryRegion)
{
// Initialize properties.
//
globalMemoryRegion.GlobalMemoryRegionIndex = 1;
globalMemoryRegion.RegisteredSettingsAssemblyCount.Store(1);
MemoryRegion memoryHeader = globalMemoryRegion.MemoryHeader;
MemoryRegionId memoryRegionId = memoryHeader.MemoryRegionId;
memoryRegionId.Type = MemoryRegionType.Global;
SharedConfigDictionary sharedConfigDictionary = globalMemoryRegion.SharedConfigDictionary;
ArenaAllocator allocator = sharedConfigDictionary.Allocator;
// Initialize memory allocator.
//
allocator.InitializeArenaAllocator(memoryHeader, (int)globalMemoryRegion.CodegenTypeSize());
// Initialize shared config dictionary.
//
sharedConfigDictionary.InitializeSharedConfigDictionary();
return(globalMemoryRegion);
}
