projects/pystatgrab/_statgrab.pyx

#
# i-scream central monitoring system
# http://www.i-scream.org
# Copyright (C) 2000-2004 i-scream
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
# $Id: statgrab.pyx,v 1.5 2004/02/13 00:16:20 tdb Exp $
#

ctypedef long time_t

cdef extern from "statgrab.h":
    ctypedef struct cpu_states_t:
        long long user
        long long kernel
        long long idle
        long long iowait
        long long swap
        long long nice
        long long total
        time_t systime

    ctypedef struct cpu_percent_t:
        float user
        float kernel
        float idle
        float iowait
        float swap
        float nice
        time_t time_taken

    ctypedef struct mem_stat_t:
        long long total
        long long free
        long long used
        long long cache

    ctypedef struct load_stat_t:
        double min1
        double min5
        double min15

    ctypedef struct user_stat_t:
        char *name_list
        int num_entries

    ctypedef struct swap_stat_t:
        long long total
        long long used
        long long free

    ctypedef struct general_stat_t:
        char *os_name
        char *os_release
        char *os_version
        char *platform
        char *hostname
        time_t uptime

    ctypedef struct disk_stat_t:
        char *device_name
        char *fs_type
        char *mnt_point
        long long size
        long long used
        long long avail
        long long total_inodes
        long long used_inodes
        long long free_inodes

    ctypedef struct diskio_stat_t:
        char *disk_name
        long long read_bytes
        long long write_bytes
        time_t systime

    ctypedef struct process_stat_t:
        int total
        int running
        int sleeping
        int stopped
        int zombie

    ctypedef struct network_stat_t:
        char *interface_name
        long long tx
        long long rx
        time_t systime

    ctypedef enum duplex:
        FULL_DUPLEX
        HALF_DUPLEX
        NO_DUPLEX

    ctypedef struct network_iface_stat_t:
        char *interface_name
        int speed
        duplex dup

    ctypedef struct page_stat_t:
        long long pages_pagein
        long long pages_pageout
        time_t systime

    cdef extern cpu_states_t *get_cpu_totals()
    cdef extern cpu_states_t *get_cpu_diff()
    cdef extern cpu_percent_t *cpu_percent_usage()
    cdef extern mem_stat_t *get_memory_stats()
    cdef extern load_stat_t *get_load_stats()
    cdef extern user_stat_t *get_user_stats()
    cdef extern swap_stat_t *get_swap_stats()
    cdef extern general_stat_t *get_general_stats()
    cdef extern disk_stat_t *get_disk_stats(int *entries)
    cdef extern diskio_stat_t *get_diskio_stats(int *entries)
    cdef extern diskio_stat_t *get_diskio_stats_diff(int *entries)
    cdef extern process_stat_t *get_process_stats()
    cdef extern network_stat_t *get_network_stats(int *entries)
    cdef extern network_stat_t *get_network_stats_diff(int *entries)
    cdef extern network_iface_stat_t *get_network_iface_stats(int *entries)
    cdef extern page_stat_t *get_page_stats()
    cdef extern page_stat_t *get_page_stats_diff()
    cdef extern int statgrab_init()
    cdef extern int statgrab_drop_privileges()


class Result:
    def __init__(self, attrs):
        self.attrs = attrs
        for attr in attrs:
            setattr(self, attr, attrs[attr])
    def __getitem__(self, item):
        return getattr(self, item)
    def __repr__(self):
        return str(self.attrs)

class StatgrabException(Exception):
    def __init__(self, value):
        self.value = value
    def __str__(self):
        return repr(self.value)


def py_get_cpu_totals():
    cdef cpu_states_t *s
    s = get_cpu_totals()
    if s == NULL:
        raise StatgrabException, 'get_cpu_totals() returned NULL'
    return Result(
        {'user': s.user,
         'kernel': s.kernel,
         'idle': s.idle,
         'iowait': s.iowait,
         'swap': s.swap,
         'nice': s.nice,
         'total': s.total,
         'systime': s.systime,
        }
    )

def py_get_cpu_diff():
    cdef cpu_states_t *s
    s = get_cpu_diff()
    if s == NULL:
        raise StatgrabException, 'get_cpu_diff() returned NULL'
    return Result(
        {'user': s.user,
         'kernel': s.kernel,
         'idle': s.idle,
         'iowait': s.iowait,
         'swap': s.swap,
         'nice': s.nice,
         'total': s.total,
         'systime': s.systime,
        }
    )

def py_cpu_percent_usage():
    cdef cpu_percent_t *s
    s = cpu_percent_usage()
    if s == NULL:
        raise StatgrabException, 'cpu_percent_usage() returned NULL'
    return Result(
        {'user': s.user,
         'kernel': s.kernel,
         'idle': s.idle,
         'iowait': s.iowait,
         'swap': s.swap,
         'nice': s.nice,
         'time_taken': s.time_taken,
        }
    )

def py_get_memory_stats():
    cdef mem_stat_t *s
    s = get_memory_stats()
    if s == NULL:
        raise StatgrabException, 'get_memory_stats() returned NULL'
    return Result(
        {'total': s.total,
         'used': s.used,
         'free': s.free,
         'cache': s.cache,
        }
    )

def py_get_load_stats():
    cdef load_stat_t *s
    s = get_load_stats()
    if s == NULL:
        raise StatgrabException, 'get_load_stats() returned NULL'
    return Result(
        {'min1': s.min1,
         'min5': s.min5,
         'min15': s.min15,
        }
    )

def py_get_user_stats():
    cdef user_stat_t *s
    s = get_user_stats()
    if s == NULL:
        raise StatgrabException, 'get_user_stats() returned NULL'
    return Result(
        {'name_list': s.name_list,
         'num_entries': s.num_entries,
        }
    )

def py_get_swap_stats():
    cdef swap_stat_t *s
    s = get_swap_stats()
    if s == NULL:
        raise StatgrabException, 'get_swap_stats() returned NULL'
    return Result(
        {'total': s.total,
         'used': s.used,
         'free': s.free,
        }
    )

def py_get_general_stats():
    cdef general_stat_t *s
    s = get_general_stats()
    if s == NULL:
        raise StatgrabException, 'get_general_stats() returned NULL'
    return Result(
        {'os_name': s.os_name,
         'os_release': s.os_release,
         'os_version': s.os_version,
         'platform': s.platform,
         'hostname': s.hostname,
         'uptime': s.uptime,
        }
    )

def py_get_disk_stats():
    cdef disk_stat_t *s
    cdef int entries
    s = get_disk_stats(&entries)
    if s == NULL:
        raise StatgrabException, 'get_disk_stats() returned NULL'
    list = []
    for i from 0 <= i < entries:
        list.append(Result(
            {'device_name': s.device_name,
             'fs_type': s.fs_type,
             'mnt_point': s.mnt_point,
             'size': s.size,
             'used': s.used,
             'avail': s.avail,
             'total_inodes': s.total_inodes,
             'used_inodes': s.used_inodes,
             'free_inodes': s.free_inodes,
            }
        ))
        s = s + 1
    return list

def py_get_diskio_stats():
    cdef diskio_stat_t *s
    cdef int entries
    s = get_diskio_stats(&entries)
    if s == NULL:
        raise StatgrabException, 'get_diskio_stats() returned NULL'
    list = []
    for i from 0 <= i < entries:
        list.append(Result(
            {'disk_name': s.disk_name,
             'read_bytes': s.read_bytes,
             'write_bytes': s.write_bytes,
             'systime': s.systime,
            }
        ))
        s = s + 1
    return list

def py_get_diskio_stats_diff():
    cdef diskio_stat_t *s
    cdef int entries
    s = get_diskio_stats_diff(&entries)
    if s == NULL:
        raise StatgrabException, 'get_diskio_stats_diff() returned NULL'
    list = []
    for i from 0 <= i < entries:
        list.append(Result(
            {'disk_name': s.disk_name,
             'read_bytes': s.read_bytes,
             'write_bytes': s.write_bytes,
             'systime': s.systime,
            }
        ))
        s = s + 1
    return list

def py_get_process_stats():
    cdef process_stat_t *s
    s = get_process_stats()
    if s == NULL:
        raise StatgrabException, 'get_process_stats() returned NULL'
    return Result(
        {'total': s.total,
         'running': s.running,
         'sleeping': s.sleeping,
         'stopped': s.stopped,
         'zombie': s.zombie,
        }
    )

def py_get_network_stats():
    cdef network_stat_t *s
    cdef int entries
    s = get_network_stats(&entries)
    if s == NULL:
        raise StatgrabException, 'get_network_stats() returned NULL'
    list = []
    for i from 0 <= i < entries:
        list.append(Result(
            {'interface_name': s.interface_name,
             'tx': s.tx,
             'rx': s.rx,
             'systime': s.systime,
            }
        ))
        s = s + 1
    return list

def py_get_network_stats_diff():
    cdef network_stat_t *s
    cdef int entries
    s = get_network_stats_diff(&entries)
    if s == NULL:
        raise StatgrabException, 'get_network_stats_diff() returned NULL'
    list = []
    for i from 0 <= i < entries:
        list.append(Result(
            {'interface_name': s.interface_name,
             'tx': s.tx,
             'rx': s.rx,
             'systime': s.systime,
            }
        ))
        s = s + 1
    return list

def py_get_network_iface_stats():
    cdef network_iface_stat_t *s
    cdef int entries
    s = get_network_iface_stats(&entries)
    if s == NULL:
        raise StatgrabException, 'get_network_iface_stats() returned NULL'
    list = []
    for i from 0 <= i < entries:
        list.append(Result(
            {'interface_name': s.interface_name,
             'speed': s.speed,
             'dup': s.dup,
            }
        ))
        s = s + 1
    return list

def py_get_page_stats():
    cdef page_stat_t *s
    s = get_page_stats()
    if s == NULL:
        raise StatgrabException, 'get_page_stats() returned NULL'
    return Result(
        {'pages_pagein': s.pages_pagein,
         'pages_pageout': s.pages_pageout,
        }
    )

def py_get_page_stats_diff():
    cdef page_stat_t *s
    s = get_page_stats_diff()
    if s == NULL:
        raise StatgrabException, 'get_page_stats_diff() returned NULL'
    return Result(
        {'pages_pagein': s.pages_pagein,
         'pages_pageout': s.pages_pageout,
        }
    )

def py_statgrab_init():
    return statgrab_init()

def py_statgrab_drop_privileges():
    return statgrab_drop_privileges()
Revision:	1.6
Committed:	Fri Feb 13 12:03:29 2004 UTC (20 years, 9 months ago) by tdb
Branch:	MAIN
Changes since 1.5:	+7 -7 lines
Log Message:	There's no need to return how many entries are in a list at the start of the list. There's much easier ways to work out how many there are :-)
#	User	Rev	Content
1	tdb	1.3	#
2			# i-scream central monitoring system
3			# http://www.i-scream.org
4			# Copyright (C) 2000-2004 i-scream
5			#
6			# This program is free software; you can redistribute it and/or
7			# modify it under the terms of the GNU General Public License
8			# as published by the Free Software Foundation; either version 2
9			# of the License, or (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, write to the Free Software
18			# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19			#
20	tdb	1.6	# $Id: statgrab.pyx,v 1.5 2004/02/13 00:16:20 tdb Exp $
21	tdb	1.3	#
22	tdb	1.1
23			ctypedef long time_t
24
25			cdef extern from "statgrab.h":
26			ctypedef struct cpu_states_t:
27			long long user
28			long long kernel
29			long long idle
30			long long iowait
31			long long swap
32			long long nice
33			long long total
34			time_t systime
35
36			ctypedef struct cpu_percent_t:
37			float user
38			float kernel
39			float idle
40			float iowait
41			float swap
42			float nice
43			time_t time_taken
44
45			ctypedef struct mem_stat_t:
46			long long total
47			long long free
48			long long used
49			long long cache
50
51			ctypedef struct load_stat_t:
52			double min1
53			double min5
54			double min15
55
56			ctypedef struct user_stat_t:
57			char *name_list
58			int num_entries
59
60			ctypedef struct swap_stat_t:
61			long long total
62			long long used
63			long long free
64
65			ctypedef struct general_stat_t:
66			char *os_name
67			char *os_release
68			char *os_version
69			char *platform
70			char *hostname
71			time_t uptime
72
73			ctypedef struct disk_stat_t:
74			char *device_name
75			char *fs_type
76			char *mnt_point
77			long long size
78			long long used
79			long long avail
80			long long total_inodes
81			long long used_inodes
82			long long free_inodes
83
84			ctypedef struct diskio_stat_t:
85			char *disk_name
86			long long read_bytes
87			long long write_bytes
88			time_t systime
89
90			ctypedef struct process_stat_t:
91			int total
92			int running
93			int sleeping
94			int stopped
95			int zombie
96
97			ctypedef struct network_stat_t:
98			char *interface_name
99			long long tx
100			long long rx
101			time_t systime
102
103	tdb	1.5	ctypedef enum duplex:
104			FULL_DUPLEX
105			HALF_DUPLEX
106			NO_DUPLEX
107
108			ctypedef struct network_iface_stat_t:
109			char *interface_name
110			int speed
111			duplex dup
112
113	tdb	1.1	ctypedef struct page_stat_t:
114			long long pages_pagein
115			long long pages_pageout
116			time_t systime
117
118			cdef extern cpu_states_t *get_cpu_totals()
119			cdef extern cpu_states_t *get_cpu_diff()
120			cdef extern cpu_percent_t *cpu_percent_usage()
121			cdef extern mem_stat_t *get_memory_stats()
122			cdef extern load_stat_t *get_load_stats()
123			cdef extern user_stat_t *get_user_stats()
124			cdef extern swap_stat_t *get_swap_stats()
125			cdef extern general_stat_t *get_general_stats()
126			cdef extern disk_stat_t get_disk_stats(int entries)
127			cdef extern diskio_stat_t get_diskio_stats(int entries)
128			cdef extern diskio_stat_t get_diskio_stats_diff(int entries)
129			cdef extern process_stat_t *get_process_stats()
130			cdef extern network_stat_t get_network_stats(int entries)
131			cdef extern network_stat_t get_network_stats_diff(int entries)
132	tdb	1.5	cdef extern network_iface_stat_t get_network_iface_stats(int entries)
133	tdb	1.1	cdef extern page_stat_t *get_page_stats()
134			cdef extern page_stat_t *get_page_stats_diff()
135			cdef extern int statgrab_init()
136			cdef extern int statgrab_drop_privileges()
137
138
139	tdb	1.2	class Result:
140			def __init__(self, attrs):
141			self.attrs = attrs
142			for attr in attrs:
143			setattr(self, attr, attrs[attr])
144			def __getitem__(self, item):
145			return getattr(self, item)
146			def __repr__(self):
147			return str(self.attrs)
148
149	tdb	1.4	class StatgrabException(Exception):
150	tdb	1.3	def __init__(self, value):
151			self.value = value
152			def __str__(self):
153			return repr(self.value)
154
155	tdb	1.2
156	tdb	1.1	def py_get_cpu_totals():
157			cdef cpu_states_t *s
158			s = get_cpu_totals()
159	tdb	1.3	if s == NULL:
160			raise StatgrabException, 'get_cpu_totals() returned NULL'
161	tdb	1.2	return Result(
162			{'user': s.user,
163			'kernel': s.kernel,
164			'idle': s.idle,
165			'iowait': s.iowait,
166			'swap': s.swap,
167			'nice': s.nice,
168			'total': s.total,
169			'systime': s.systime,
170			}
171			)
172	tdb	1.1
173			def py_get_cpu_diff():
174			cdef cpu_states_t *s
175			s = get_cpu_diff()
176	tdb	1.3	if s == NULL:
177			raise StatgrabException, 'get_cpu_diff() returned NULL'
178	tdb	1.2	return Result(
179			{'user': s.user,
180			'kernel': s.kernel,
181			'idle': s.idle,
182			'iowait': s.iowait,
183			'swap': s.swap,
184			'nice': s.nice,
185			'total': s.total,
186			'systime': s.systime,
187			}
188			)
189	tdb	1.1
190			def py_cpu_percent_usage():
191			cdef cpu_percent_t *s
192			s = cpu_percent_usage()
193	tdb	1.3	if s == NULL:
194			raise StatgrabException, 'cpu_percent_usage() returned NULL'
195	tdb	1.2	return Result(
196			{'user': s.user,
197			'kernel': s.kernel,
198			'idle': s.idle,
199			'iowait': s.iowait,
200			'swap': s.swap,
201			'nice': s.nice,
202			'time_taken': s.time_taken,
203			}
204			)
205	tdb	1.1
206			def py_get_memory_stats():
207			cdef mem_stat_t *s
208			s = get_memory_stats()
209	tdb	1.3	if s == NULL:
210			raise StatgrabException, 'get_memory_stats() returned NULL'
211	tdb	1.2	return Result(
212			{'total': s.total,
213			'used': s.used,
214			'free': s.free,
215			'cache': s.cache,
216			}
217			)
218	tdb	1.1
219			def py_get_load_stats():
220			cdef load_stat_t *s
221			s = get_load_stats()
222	tdb	1.3	if s == NULL:
223			raise StatgrabException, 'get_load_stats() returned NULL'
224	tdb	1.2	return Result(
225			{'min1': s.min1,
226			'min5': s.min5,
227			'min15': s.min15,
228			}
229			)
230	tdb	1.1
231			def py_get_user_stats():
232			cdef user_stat_t *s
233			s = get_user_stats()
234	tdb	1.3	if s == NULL:
235			raise StatgrabException, 'get_user_stats() returned NULL'
236	tdb	1.2	return Result(
237			{'name_list': s.name_list,
238			'num_entries': s.num_entries,
239			}
240			)
241	tdb	1.1
242			def py_get_swap_stats():
243			cdef swap_stat_t *s
244			s = get_swap_stats()
245	tdb	1.3	if s == NULL:
246			raise StatgrabException, 'get_swap_stats() returned NULL'
247	tdb	1.2	return Result(
248			{'total': s.total,
249			'used': s.used,
250			'free': s.free,
251			}
252			)
253	tdb	1.1
254			def py_get_general_stats():
255			cdef general_stat_t *s
256			s = get_general_stats()
257	tdb	1.3	if s == NULL:
258			raise StatgrabException, 'get_general_stats() returned NULL'
259	tdb	1.2	return Result(
260			{'os_name': s.os_name,
261			'os_release': s.os_release,
262			'os_version': s.os_version,
263			'platform': s.platform,
264			'hostname': s.hostname,
265			'uptime': s.uptime,
266			}
267			)
268	tdb	1.1
269			def py_get_disk_stats():
270			cdef disk_stat_t *s
271			cdef int entries
272			s = get_disk_stats(&entries)
273	tdb	1.3	if s == NULL:
274			raise StatgrabException, 'get_disk_stats() returned NULL'
275	tdb	1.6	list = []
276	tdb	1.1	for i from 0 <= i < entries:
277	tdb	1.2	list.append(Result(
278			{'device_name': s.device_name,
279			'fs_type': s.fs_type,
280			'mnt_point': s.mnt_point,
281			'size': s.size,
282			'used': s.used,
283			'avail': s.avail,
284			'total_inodes': s.total_inodes,
285			'used_inodes': s.used_inodes,
286			'free_inodes': s.free_inodes,
287			}
288			))
289	tdb	1.1	s = s + 1
290			return list
291
292			def py_get_diskio_stats():
293			cdef diskio_stat_t *s
294			cdef int entries
295			s = get_diskio_stats(&entries)
296	tdb	1.3	if s == NULL:
297			raise StatgrabException, 'get_diskio_stats() returned NULL'
298	tdb	1.6	list = []
299	tdb	1.1	for i from 0 <= i < entries:
300	tdb	1.2	list.append(Result(
301			{'disk_name': s.disk_name,
302			'read_bytes': s.read_bytes,
303			'write_bytes': s.write_bytes,
304			'systime': s.systime,
305			}
306			))
307	tdb	1.1	s = s + 1
308			return list
309
310			def py_get_diskio_stats_diff():
311			cdef diskio_stat_t *s
312			cdef int entries
313			s = get_diskio_stats_diff(&entries)
314	tdb	1.3	if s == NULL:
315			raise StatgrabException, 'get_diskio_stats_diff() returned NULL'
316	tdb	1.6	list = []
317	tdb	1.1	for i from 0 <= i < entries:
318	tdb	1.2	list.append(Result(
319			{'disk_name': s.disk_name,
320			'read_bytes': s.read_bytes,
321			'write_bytes': s.write_bytes,
322			'systime': s.systime,
323			}
324			))
325	tdb	1.1	s = s + 1
326			return list
327
328			def py_get_process_stats():
329			cdef process_stat_t *s
330			s = get_process_stats()
331	tdb	1.3	if s == NULL:
332			raise StatgrabException, 'get_process_stats() returned NULL'
333	tdb	1.2	return Result(
334			{'total': s.total,
335			'running': s.running,
336			'sleeping': s.sleeping,
337			'stopped': s.stopped,
338			'zombie': s.zombie,
339			}
340			)
341	tdb	1.1
342			def py_get_network_stats():
343			cdef network_stat_t *s
344			cdef int entries
345			s = get_network_stats(&entries)
346	tdb	1.3	if s == NULL:
347			raise StatgrabException, 'get_network_stats() returned NULL'
348	tdb	1.6	list = []
349	tdb	1.1	for i from 0 <= i < entries:
350	tdb	1.2	list.append(Result(
351			{'interface_name': s.interface_name,
352			'tx': s.tx,
353			'rx': s.rx,
354			'systime': s.systime,
355			}
356			))
357	tdb	1.1	s = s + 1
358			return list
359
360			def py_get_network_stats_diff():
361			cdef network_stat_t *s
362			cdef int entries
363			s = get_network_stats_diff(&entries)
364	tdb	1.3	if s == NULL:
365			raise StatgrabException, 'get_network_stats_diff() returned NULL'
366	tdb	1.6	list = []
367	tdb	1.1	for i from 0 <= i < entries:
368	tdb	1.2	list.append(Result(
369			{'interface_name': s.interface_name,
370			'tx': s.tx,
371			'rx': s.rx,
372			'systime': s.systime,
373	tdb	1.5	}
374			))
375			s = s + 1
376			return list
377
378			def py_get_network_iface_stats():
379			cdef network_iface_stat_t *s
380			cdef int entries
381			s = get_network_iface_stats(&entries)
382			if s == NULL:
383			raise StatgrabException, 'get_network_iface_stats() returned NULL'
384	tdb	1.6	list = []
385	tdb	1.5	for i from 0 <= i < entries:
386			list.append(Result(
387			{'interface_name': s.interface_name,
388			'speed': s.speed,
389			'dup': s.dup,
390	tdb	1.2	}
391			))
392	tdb	1.1	s = s + 1
393			return list
394
395			def py_get_page_stats():
396			cdef page_stat_t *s
397			s = get_page_stats()
398	tdb	1.3	if s == NULL:
399			raise StatgrabException, 'get_page_stats() returned NULL'
400	tdb	1.2	return Result(
401			{'pages_pagein': s.pages_pagein,
402			'pages_pageout': s.pages_pageout,
403			}
404			)
405	tdb	1.1
406			def py_get_page_stats_diff():
407			cdef page_stat_t *s
408			s = get_page_stats_diff()
409	tdb	1.3	if s == NULL:
410			raise StatgrabException, 'get_page_stats_diff() returned NULL'
411	tdb	1.2	return Result(
412			{'pages_pagein': s.pages_pagein,
413			'pages_pageout': s.pages_pageout,
414			}
415			)
416	tdb	1.1
417			def py_statgrab_init():
418			return statgrab_init()
419
420			def py_statgrab_drop_privileges():
421			return statgrab_drop_privileges()