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lib_mem.h/lib_mem.c
Prototype
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void Mem_PoolBlkFree (MEM_POOL *pmem_pool,
void *pmem_blk,
LIB_ERR *perr); |
Arguments
pmem_pool
Pointer to memory pool to free memory block to.
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Notes / Warnings
None.
Example Usage
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MEM_POOL AppMemPool;
CPU_SIZE_T octets_reqd;
void *pmem_blk;
LIB_ERR err;
Mem_PoolCreate((MEM_POOL *)&AppMemPool,
(void *) 0, /* Create pool from heap ... */
(CPU_SIZE_T ) 0u,
(MEM_POOL_BLK_QTY) 10u, /* ... with 10 blocks ... */
(CPU_SIZE_T )100u, /* ... of 100 octets each ... */
(CPU_SIZE_T ) 4u, /* ... and align each block to a 4-byte boundary. */
(CPU_SIZE_T *)&octets_reqd,
(LIB_ERR *)&err);
if (err != LIB_ERR_NONE) {
printf("COULD NOT CREATE MEMORY POOL.");
if (err == LIB_MEM_ERR_HEAP_EMPTY) {
printf("Heap empty ... %u more octets needed.", octets_reqd);
}
return;
}
/* Get an 80-byte memory block from the pool. */
pmem_blk = Mem_PoolBlkGet(&AppMemPool, 80u, &err);
if (err != LIB_ERR_NONE) {
printf("COULD NOT GET MEMORY BLOCK FROM MEMORY POOL.");
return;
}
/* Free 80-byte memory block back to pool. */
Mem_PoolBlkFree(&AppMemPool, pmem_blk, &err);
if (err != LIB_ERR_NONE) {
printf("COULD NOT FREE MEMORY BLOCK TO MEMORY POOL.");
return;
} |