1/*
2   Unix SMB/CIFS implementation.
3   Portable SMB Messaging statistics interfaces
4   Copyright (C) Todd Stecher (2008)
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 3 of the License, or
9   (at your option) any later version.
10
11   This program is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with this program.  If not, see <http://www.gnu.org/licenses/>.
18*/
19
20#ifndef _SMB_PERFCOUNT_H_
21#define _SMB_PERFCOUNT_H_
22
23#define SMB_PERFCOUNTER_INTERFACE_VERSION	1
24
25struct smb_perfcount_data{
26	struct smb_perfcount_handlers *handlers;
27	void *context;
28};
29
30struct smb_perfcount_handlers {
31	void (*perfcount_start) (struct smb_perfcount_data *pcd);
32	void (*perfcount_add) (struct smb_perfcount_data *pcd);
33	void (*perfcount_set_op) (struct smb_perfcount_data *pcd, int op);
34	void (*perfcount_set_subop) (struct smb_perfcount_data *pcd, int subop);
35	void (*perfcount_set_ioctl) (struct smb_perfcount_data *pcd, int io_ctl);
36	void (*perfcount_set_msglen_in) (struct smb_perfcount_data *pcd,
37				         uint64_t in_bytes);
38	void (*perfcount_set_msglen_out) (struct smb_perfcount_data *pcd,
39				          uint64_t out_bytes);
40	void (*perfcount_copy_context) (struct smb_perfcount_data *pcd,
41				        struct smb_perfcount_data *new_pcd);
42	void (*perfcount_defer_op) (struct smb_perfcount_data *pcd,
43				    struct smb_perfcount_data *def_pcd);
44	void (*perfcount_end) (struct smb_perfcount_data *pcd);
45};
46
47bool smb_perfcount_init(void);
48
49NTSTATUS smb_register_perfcounter(int interface_version, const char *name,
50			          const struct smb_perfcount_handlers *handlers);
51
52void smb_init_perfcount_data(struct smb_perfcount_data *pcd);
53
54#define SMB_PERFCOUNT_START(_pcd_) \
55    do {if((_pcd_) && (_pcd_)->handlers) \
56	    (_pcd_)->handlers->perfcount_start((_pcd_)); \
57    } while (0)
58
59#define SMB_PERFCOUNT_ADD(_pcd_) \
60    do {if((_pcd_) && (_pcd_)->handlers) \
61	    (_pcd_)->handlers->perfcount_add((_pcd_)); \
62    } while (0)
63
64#define SMB_PERFCOUNT_SET_OP(_pcd_,_op_) \
65    do {if((_pcd_) && (_pcd_)->handlers) \
66	    (_pcd_)->handlers->perfcount_set_op((_pcd_), (_op_)); \
67    } while (0)
68
69#define SMB_PERFCOUNT_SET_SUBOP(_pcd_,_subop_) \
70    do {if((_pcd_) && (_pcd_)->handlers) \
71	    (_pcd_)->handlers->perfcount_set_subop((_pcd_), (_subop_)); \
72    } while (0)
73
74#define SMB_PERFCOUNT_SET_IOCTL(_pcd_,_subop_) \
75    do {if((_pcd_) && (_pcd_)->handlers) \
76	    (_pcd_)->handlers->perfcount_set_ioctl((_pcd_), (_subop_)); \
77    } while (0)
78
79#define SMB_PERFCOUNT_SET_MSGLEN_IN(_pcd_,_in_) \
80    do {if((_pcd_) && (_pcd_)->handlers) \
81	    (_pcd_)->handlers->perfcount_set_msglen_in((_pcd_), (_in_));\
82    } while (0)
83
84#define SMB_PERFCOUNT_SET_MSGLEN_OUT(_pcd_,_out_) \
85    do {if((_pcd_) && (_pcd_)->handlers) \
86	    (_pcd_)->handlers->perfcount_set_msglen_out((_pcd_), (_out_));\
87    } while (0)
88
89#define SMB_PERFCOUNT_COPY_CONTEXT(_pcd_, _new_pcd_) \
90    do {if((_pcd_) && (_pcd_)->handlers) \
91	    (_pcd_)->handlers->perfcount_copy_context((_pcd_), (_new_pcd_)); \
92    } while (0)
93
94#define SMB_PERFCOUNT_DEFER_OP(_pcd_, _def_pcd_) \
95    do {if((_pcd_) && (_pcd_)->handlers) \
96	    (_pcd_)->handlers->perfcount_defer_op((_pcd_), (_def_pcd_)); \
97    } while (0)
98
99#define SMB_PERFCOUNT_END(_pcd_) \
100    do {if((_pcd_) && (_pcd_)->handlers) \
101	    (_pcd_)->handlers->perfcount_end((_pcd_));\
102    } while (0)
103
104#endif /* _SMB_PERFCOUNT_H_ */
105