int64 f_rand(int64 min /* = 0 */, int64 max /* = RAND_MAX */) {
if (!s_rand_is_seeded) {
s_rand_is_seeded = true;
srand(GENERATE_SEED());
}
int64 number = rand();
if (min != 0 || max != RAND_MAX) {
RAND_RANGE(number, min, max, RAND_MAX);
}
return number;
}
Profiler() : m_stack(NULL), m_frame_free_list(NULL) {
if (!s_rand_initialized) {
s_rand_initialized = true;
srand(GENERATE_SEED());
}
// bind to a random cpu so that we can use rdtsc instruction.
m_cur_cpu_id = rand() % s_machine.m_cpu_num;
sched_getaffinity(0, sizeof(cpu_set_t), &m_prev_mask);
MachineInfo::BindToCPU(m_cur_cpu_id);
memset(m_func_hash_counters, 0, sizeof(m_func_hash_counters));
}
Profiler() : m_successful(true), m_stack(NULL), m_frame_free_list(NULL) {
if (!s_rand_initialized) {
s_rand_initialized = true;
srand(GENERATE_SEED());
}
// bind to a random cpu so that we can use rdtsc instruction.
int cur_cpu_id = rand() % s_machine.m_cpu_num;
GET_AFFINITY(0, sizeof(cpu_set_t), &m_prev_mask);
MachineInfo::BindToCPU(cur_cpu_id);
m_MHz = s_machine.m_cpu_frequencies[cur_cpu_id];
memset(m_func_hash_counters, 0, sizeof(m_func_hash_counters));
}
void f_mt_srand(CVarRef seed /* = null_variant */) {
if (seed.isNull()) {
return srand(GENERATE_SEED());
}
return srand(seed.toInt32());
}
static long get_rand() {
long ret;
srand((unsigned int) GENERATE_SEED());
ret = rand();
return ret;
}