TCPIP_STACK_HEAP_POOL_ENTRY Structure
C
typedef struct {
uint16_t entrySize;
uint16_t nBlocks;
uint8_t nExpBlks;
} TCPIP_STACK_HEAP_POOL_ENTRY;
Description
Internal pool configuration data.
This data type defines the data required to initialize the TCP/IP stack internal memory pool.
Preconditions
None.
Members
| Members | Description |
|---|---|
| entrySize | Size of the blocks in this pool entry. |
| nBlocks | Number of blocks to create for this entry. |
| nExpBlks | Number of blocks to expand/allocate when an allocation in this entry failed. |
Remarks
Pool entries should follow these 2 rules:
They should have distincy block sizes: entrySize. Multiple entries having the same entrySize is not supported.
Pool entries should have a non-zero block size. Entries with 0 block size are not supported.
If these conditions are not observed, the heap creation will fail. To expand/dynamically allocate at run time the expansionHeapSize needs to be != 0; If nExpBlks == 0, then no allocation will be tried for this particular entry.