Thread: Need help in analyzing pointer and macro implementation.

Hello Friends,

I have follwoing code.

Code:

 
 28 struct pkt_pool_t;
 29
 30 typedef int (*PKT_POOL_GET_TRAFFIC) (struct pkt_pool_t *pool, pkt_t **pkt, pkt_message_t **msg);
 33 typedef int (*PKT_POOL_FREE) (struct pkt_pool_t *pool, pkt_t *pkt);
 34 typedef uint32_t (*PKT_POOL_GET_FAIL_COUNT) (struct pkt_pool_t *pool);
 35 
 36 struct pkt_pool_t {
 37     PKT_POOL_GET_TRAFFIC temp_traffic;
 40     PKT_POOL_FREE free;
  42 };
 43 
 44 static inline int __attribute__ ((always_inline))
 45 pkt_pool_get_traffic(struct pkt_pool_t *pool, pkt_t **pkt, pkt_message_t **msg)
 46 {
 47     assert(pool && pool->temp_traffic);
 48 
 49     return (*pool->temp_traffic) (pool, pkt, msg);
 50 }
 51

I am trying to find out , which function will be fired with "temp_traffic" here.

I understand below points.

1.pool is struct variable and temp_traffic will be function pointer which takes three varaiables.
2.temp_traffic is of type "PKT_POOL_GET_TRAFFIC".

from here i could not able to crack this.

any help would be highly appreciated.