const struct file_operations *proc_fops, void *data) const struct proc_ops *proc_ops, void *data) { struct proc_dir_entry *p;BUG_ON(proc_fops == NULL);p = proc_create_reg(name, mode, &parent, data); if (!p) return NULL; ...
以上操作完成了struct socket、struct sock、struct file等的创建、初始化、关联,并最终返回socket描述符fd socket描述符fd和我们平时操作文件的文件描述符相同,那么会有一个疑问,可以看到struct file_operations socket_file_ops函数表中并没有提供write和read接口,只是看到read_iter,write_iter等接口,那么系统是如何处理...
1structmiscdevice {2intminor;//次设备号3constchar*name;//设备的名称4conststructfile_operations *fops;//文件操作5structlist_head list;//misc_list的链表头6structdevice *parent;//父设备(Linux设备模型中的东东了,哈哈)7structdevice *this_device;//当前设备,是device_create的返回值,下边会看到8}; ...
1、vm_ops 成员 vm_ops成员是 " 虚拟内存操作集合 " , 该vm_operations_struct结构体中封装了大量的虚拟内存操作 ; 代码语言:javascript 复制 /* Function pointers to deal with this struct. */conststruct vm_operations_struct*vm_ops; 二、vm_operations_struct 结构体成员分析 vm_operations_struct结构体 ...
使用c语言ebpf和int _sockops(struct bpf_sock_ops *ctx)函数,map随意 我是初学者,死活写不出来,求教大佬们。
unsigned int (*poll)(struct tty_struct *, struct file *, struct poll_table_struct *); int (*hangup)(struct tty_struct *tty); /* * The following routines are called from below. */ void (*receive_buf)(struct tty_struct *, const unsigned char *cp, ...
const struct file_operations *fops; struct list_head list; struct device *parent; struct device *this_device; const char *nodename; mode_t mode; }; scull 设备驱动只实现最重要的设备方法. 它的 file_operations 结构是如下初始化的: struct file_operations scull_fops = { ...
struct file_system_type *s_type; const struct super_operations *s_op; const struct dquot_operations *dq_op; const struct quotactl_ops *s_qcop; const struct export_operations *s_export_op; unsigned long s_flags; unsigned long s_iflags; ...
check(CppStructOps && CppStructOps->HasSerializeFromMismatchedTag());// else should not have STRUCT_SerializeFromMismatchedTagvoid* DestAddress = ContainerPtrToValuePtr<void>(Data, Tag.ArrayIndex);if(CppStructOps->SerializeFromMismatchedTag(Tag, Ar, DestAddress)) ...
int (*show) (struct seq_file *m, void *v); }; 当我们 read 一个 stat 文件时,内核会调用其 proc_ops 的proc_read_iter指针,其默认值为seq_read_iter()函数,定义于fs/seq_file.c中,注意到有如下逻辑: ssize_t seq_read_iter(struct kiocb *iocb, struct iov_iter *iter) ...