1 #ifndef ARTDAQ_CORE_CORE_SHARED_MEMORY_FRAGMENT_MANAGER_HH
2 #define ARTDAQ_CORE_CORE_SHARED_MEMORY_FRAGMENT_MANAGER_HH 1
4 #include "artdaq-core/Core/SharedMemoryManager.hh"
5 #include "artdaq-core/Data/RawEvent.hh"
22 SharedMemoryFragmentManager(uint32_t shm_key,
size_t buffer_count = 0,
size_t max_buffer_size = 0,
size_t buffer_timeout_us = 100 * 1000000);
76 #endif //ARTDAQ_CORE_CORE_SHARED_MEMORY_FRAGMENT_MANAGER_HH
The SharedMemoryFragmentManager is a SharedMemoryManager that deals with Fragment transfers using a S...
SharedMemoryFragmentManager(uint32_t shm_key, size_t buffer_count=0, size_t max_buffer_size=0, size_t buffer_timeout_us=100 *1000000)
SharedMemoryFragmentManager Constructor.
The SharedMemoryManager creates a Shared Memory area which is divided into a number of fixed-size buf...
int WriteFragment(Fragment &&fragment, bool overwrite, size_t timeout_us)
Write a Fragment to the Shared Memory.
detail::RawFragmentHeader::RawDataType RawDataType
The RawDataType (currently a 64-bit integer) is the basic unit of data representation within artdaq ...
int ReadFragmentHeader(detail::RawFragmentHeader &header)
Read a Fragment Header from the Shared Memory.
int ReadFragment(Fragment &fragment)
Read a Fragment from the Shared Memory.
bool ReadyForWrite(bool overwrite) override
Check if a buffer is ready for writing, and if so, reserves it for use.
A Fragment contains the data from one piece of the DAQ system for one event The artdaq::Fragment is t...
virtual ~SharedMemoryFragmentManager()=default
SharedMemoryFragmentManager destructor.
int ReadFragmentData(RawDataType *destination, size_t words)
Read Fragment Data from the Shared Memory.