锁的acquire/release: mut_x.lock(); // “acquire” mut_x -> ld.acq mut_x … read/write x … mut_x.unlock(); // “release” mut_x -> st.rel mut_x std::atomic:读(read) = acquire,写(write) = release。 while( whose_turn != me ) { } // read whose_turn -> ld.acq wh...
atomic_cond_read_relaxed(l, !VAL); }while(atomic_xchg(l,1)); } 开发者ID:Anjali05,项目名称:linux,代码行数:9,代码来源:helpers.c 示例12: apply_puts_pending ▲点赞 1▼ staticvoidapply_puts_pending(intmax){intdelta;if(atomic_read(&cpu_hotplug.puts_pending) >= max) { delta =atomic_x...
will acquire* the lock and return a non-zero value. So we have to skip the* atomic_cond_re...
A unlock() 时 release， 将自己的写操作“从cache同步到内存”；然后B lock()时 acquire，将“内存...
1 : cas(lock))volatile slock_t g_lock;int s_lock(volatile slock_t *lock){int i=0;while(SPIN(lock)){++i;}returni;}void *thread_func(void *args){while((cond=sum<max)){s_lock(&g_lock);++sum;S_UNLOCK(&g_lock);}returnNULL;}int main(void){pthread_t pids[THREAD_NUM];int ...
static pthread_cond_t cv = PTHREAD_COND_INITIALIZER; #endif +/// NOTE: Changes to flag are done via relaxed atomic stores +/// even though the accesses are protected by a mutex because threads +/// just entering 'call_once` concurrently read from flag. ...
watch->r_fd.events = READ_COND; watch->r_fd.revents =0; hm_watch_init_time(watch); watch->w_pending =0; watch->killed =0; watch->heavy_io_load = hm_connection_is_heavy(conn); watch->block_size = hm_connection_get_buffer_size(conn); ...
has caused the Debian Bug report #1076483, regarding Warning "scheduling while atomic" in intel_thermal driver with Linux 6.9+ and RT to be marked as done. This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen th...
would keep its monopoly of nuclear weapons until a full U.N. control system was established--but the Soviet Union would have to forgo building its own atomic arsenal and submit to intrusive inspection. Baruch also inserted strong language saying any violation would meet with “condign punishment...
client =atomic_load(pclient, memory_order_acquire);if(unlikely(client ==NULL)) { pthread_yield(); } }while(unlikely(client ==NULL));if(client->notify !=NULL) { client->notify(); } pclient = &client->next; } } 开发者ID:datalab-bcn,项目名称:glusterfs-gfsys,代码行数:25,代码来源...