In This Chapter

A C user-defined routine (UDR) has access to the following types of memory:

Shared memory for dynamic allocations
Stack memory for routine arguments (including the MI_FPARAM structure), local stack variables, return values

The DataBlade API provides functions to manage these types of memory.

Memory-Allocation Task		DataBlade API Function
Memory-Allocation Task		Allocation	Deallocation	Other
Shared memory
	User memory	mi_alloc( ), mi_dalloc( ), mi_realloc( )), mi_zalloc( )	mi_free( )	mi_switch_mem_duration( )
	Named memory	mi_named_alloc( ), mi_named_zalloc( )	mi_named_free( )	mi_named_get( ), mi_lock_memory( ), mi_try_lock_memory( ), mi_unlock_memory( )
Stack memory for routine arguments		mi_call( )	None	None

This chapter describes each of these kinds of memory management in detail.