Linux中的eventfd_write函数主要用于向事件文件描述符写入一个自定义的事件值。这个函数通常会在多线程或多进程之间进行通信时使用,可以用来实现进程间的同步操作。 在Linux系统中,eventfd_write函数通常与eventfd_read函数配合使用,eventfd_read函数用于读取eventfd_write函数写入的事件值。这种方式可以实现进程间的同步通信,...
int zvfs_eventfd_write(int fd, zvfs_eventfd_t value) { int ret; void *obj; obj = zvfs_get_fd_obj(fd, &zvfs_eventfd_fd_vtable, EBADF); if (obj == NULL) { return -1; } ret = zvfs_eventfd_rw_op(obj, &value, sizeof(zvfs_eventfd_t), zvfs_eventfd_write_locked); __ASSERT_N...
… inputting illegal strings Since eventfd's document has clearly stated: A write(2) call adds the 8-byte integer value supplied in its buffer to the counter. However, in the current implementation, the following code snippet did not cause an error: char str[16] = "hello world"; uint64...