struct netsniff_ng_tx_thread_context * tx_thread_create(const cpu_set_t run_on, const int sched_prio, const int sched_policy, const char * dev_name, const char * bpf_path, const char * pcap_path)
{
int rc;
struct netsniff_ng_tx_thread_context * thread_config = NULL;
if ((thread_config = xzmalloc(sizeof(*thread_config))) == NULL)
{
warn("Cannot allocate tx thread configuration\n");
return (NULL);
}
if ((rc = thread_context_init(&thread_config->thread_ctx, run_on, sched_prio, sched_policy, TX_THREAD)) != 0)
{
goto error;
}
if ((rc = tx_nic_ctx_init(thread_config, dev_name, bpf_path, pcap_path)) != 0)
{
warn("Cannot initialize TX NIC context\n");
goto error;
}
if ((rc = pthread_create(&thread_config->thread_ctx.thread, &thread_config->thread_ctx.thread_attr, tx_thread_transmit, thread_config)))
{
warn("Could not start TX thread\n");
goto error;
}
return (thread_config);
error:
tx_thread_destroy(thread_config);
return (NULL);
}
/**
* Przydziela deskryptor wątku.
* @param type Poziom uprzywilejowania.
* @param entry Adres procedury wejściowej.
* @param arg Adres argumentu przekazywany do procedury wejściowej.
*
* Procedura przydziela ogólny deskryptor wątku. Wątek przydzielony
* w ten sposób znajduje się w stanie surowym.
*/
thread_t *
thread_create(int type, addr_t entry, addr_t arg)
{
thread_t *free_thr = kmem_cache_alloc(thread_cache, KM_SLEEP);
if (free_thr) {
thread_t *t = free_thr;
t->thr_flags = THREAD_NEW | type;
t->thr_entry_point = entry;
t->thr_entry_arg = arg;
t->thr_wakeup_time = 0;
t->vm_space = NULL;
t->thr_sleepq = NULL;
list_insert_tail(&threads_list, t);
vm_space_create_stack(&vm_kspace, &t->thr_kstack, thread_kstack_size);
t->thr_kstack_size = thread_kstack_size;
thread_context_init(t, &t->thr_context);
return t;
} else {
kprintf("ERROR: no free threads!\n");
return NULL;
}
}