Here are the data structures with brief descriptions:

C_c_resource_t
C_c_thread_t
C_initializedstuff
C_integer
C_internalstate
C_librarystate
C_statevector
Cc_allocator_t
Cc_condition_t	Needed because a condition variable on Linux is associated with a mutex, while on Windows it is associated with a critical section
Cc_environment_t
Cc_linkedlist_t
Cc_listnode_t
Cc_locallogger_t
Cc_map_base_t	Base type for maps
Cc_map_iter_t	Iterator
Cc_map_node_t
Cc_Process_t
Cc_socket_t
Cc_systemtime_t
Cc_ticket_t	Ticket type
Cc_url_field_t
Cc_xmlfile_t	A wrapper to xmlDoc
Cglobal_logger
Ctstart_wrapper_t