int
eal_thread_dump_affinity(char *str, unsigned size)
{
rte_cpuset_t cpuset;
unsigned cpu;
int ret;
unsigned int out = 0;
rte_thread_get_affinity(&cpuset);
for (cpu = 0; cpu < RTE_MAX_LCORE; cpu++) {
if (!CPU_ISSET(cpu, &cpuset))
continue;
ret = snprintf(str + out,
size - out, "%u,", cpu);
if (ret < 0 || (unsigned)ret >= size - out) {
/* string will be truncated */
ret = -1;
goto exit;
}
out += ret;
}
ret = 0;
exit:
/* remove the last separator */
if (out > 0)
str[out - 1] = '\0';
return ret;
}
void *
spdk_call_unaffinitized(void *cb(void *arg), void *arg)
{
rte_cpuset_t orig_cpuset, new_cpuset;
void *ret;
long num_cores, i;
if (cb == NULL) {
return NULL;
}
rte_thread_get_affinity(&orig_cpuset);
CPU_ZERO(&new_cpuset);
num_cores = sysconf(_SC_NPROCESSORS_CONF);
/* Create a mask containing all CPUs */
for (i = 0; i < num_cores; i++) {
CPU_SET(i, &new_cpuset);
}
rte_thread_set_affinity(&new_cpuset);
ret = cb(arg);
rte_thread_set_affinity(&orig_cpuset);
return ret;
}
