ref_mpl

iref_mpl

Outline

Reference variable-sized memory pool state.

C format

 ER      ref_mpl (ID mplid, T_RMPL *pk_rmpl);

 ER      iref_mpl (ID mplid, T_RMPL *pk_rmpl);

Parameter(s)

I/O	Parameter	Description
I	ID mplid;	ID number of the variable-sized memory pool to be referenced.
O	T_RMPL *pk_rmpl;	Pointer to the packet returning the variable-sized memory pool state.

[Variable-sized memory pool state packet: T_RMPL]

typedef struct t_rmpl { ID wtskid; /*Existence of waiting task*/ SIZE fmplsz; /*Total size of free memory blocks*/ UINT fblksz; /*Maximum memory block size available*/ ATR mplatr; /*Attribute*/ ID memid; /*Reserved for future use*/ } T_RMPL;

Explanation

These service calls store the detailed information (ID number of the task at the head of the wait queue, total size of free memory blocks, etc.) of the variable-size memory pool specified by parameter mplid into the area specified by parameter pk_rmpl.

Note For details about the variable-sized memory pool state packet, refer to "15.2.10 Variable-sized memory pool state packet".

Return value

Macro	Value	Description
E_OK	0	Normal completion.
E_ID	-18	Invalid ID number. - mplid < 0x0 - mplid > Maximum ID number
E_CTX	-25	Context error. - This service call was issued in the CPU locked state.
E_NOEXS	-42	Non-existent object. - Specified variable-sized memory pool is not registered.