1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/* -*- linux-c -*-
*
* control channel header
* Copyright (C) 2009-2018 Red Hat Inc.
*
* This file is part of systemtap, and is free software. You can
* redistribute it and/or modify it under the terms of the GNU General
* Public License (GPL); either version 2, or (at your option) any
* later version.
*/
#ifndef _CONTROL_H_
#define _CONTROL_H_
#include <linux/spinlock.h>
#include <linux/list.h>
#include "../stp_helper_lock.h"
static struct list_head _stp_ctl_ready_q;
static stp_spinlock_t _stp_ctl_ready_lock;
static wait_queue_head_t _stp_ctl_wq;
struct _stp_buffer {
struct list_head list;
int len;
int type;
char buf[STP_CTL_BUFFER_SIZE];
};
static struct file_operations _stp_ctl_fops_cmd;
#ifdef STAPCONF_PROC_OPS
static struct proc_ops _stp_ctl_proc_ops_cmd;
#endif
static int _stp_ctl_send(int type, void *data, unsigned len);
static int _stp_ctl_send_notify(int type, void *data, unsigned len);
static void _stp_ctl_log_werr(const char *logtype, size_t logtype_len,
const char *fmt, va_list args)
__attribute((format(printf, 3, 0)));
static int _stp_ctl_write_fs(int type, void *data, unsigned len);
static int _stp_register_ctl_channel(void);
static void _stp_unregister_ctl_channel(void);
static int _stp_register_ctl_channel_fs(void);
static void _stp_unregister_ctl_channel_fs(void);
#endif /* _CONTROL_H_ */
|
