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python-rrdtool/rrdtoolmodule.c at master · optionalg/python-rrdtool · GitHub
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/*
* python-rrdtool, Python bindings for rrdtool.
* Based on the rrdtool Python bindings for Python 2 from
* Hye-Shik Chang <perky@fallin.lv>.
*
* Copyright 2012 Christian Jurk <commx@commx.ws>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 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 Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
*/
#include
<Python.h>
#include
<datetime.h>
#include
"rrdtoolmodule.h"
/* Some macros to maintain compatibility between Python 2.x and 3.x */
#if
PY_MAJOR_VERSION
>=
3
#define
HAVE_PY3K
#define
PyRRD_String_Check
(
x
) PyUnicode_Check(x)
#define
PyRRD_String_FromString
(
x
) PyUnicode_FromString(x)
#define
PyRRD_String_AS_STRING
(
x
) PyUnicode_AsUTF8(x)
#define
PyRRD_String_FromStringAndSize
(
x
,
y
) PyBytes_FromStringAndSize(x, y)
#define
PyRRD_String_Size
(
x
) PyUnicode_Size(x)
#define
PyRRD_Int_FromLong
(
x
) PyLong_FromLong(x)
#define
PyRRD_Int_FromString
(
x
,
y
,
z
) PyLong_FromString(x,y,z)
#define
PyRRD_Long_Check
(
x
) PyLong_Check(x)
#else
#define
PyRRD_String_Check
(
x
) PyString_Check(x)
#define
PyRRD_String_FromString
(
x
) PyString_FromString(x)
#define
PyRRD_String_AS_STRING
(
x
) PyString_AS_STRING(x)
#define
PyRRD_String_FromStringAndSize
(
x
,
y
) PyString_FromStringAndSize(x, y)
#define
PyRRD_String_Size
(
x
) PyString_Size(x)
#define
PyRRD_Int_FromLong
(
x
) PyInt_FromLong(x)
#define
PyRRD_Int_FromString
(
x
,
y
,
z
) PyInt_FromString(x,y,z)
#define
PyRRD_Long_Check
(
x
) (PyInt_Check(x) || PyLong_Check(x))
#endif
#ifndef
Py_UNUSED
#ifdef
__GNUC__
#define
Py_UNUSED
(
name
) _unused_ ## name __attribute__((unused))
#else
#define
Py_UNUSED
(
name
) _unused_ ## -name
#endif
#endif
#ifndef
DS_NAM_SIZE
#define
DS_NAM_SIZE
20
#endif
/** Binding version. */
static
const
char
*
_version
=
PACKAGE_VERSION
;
/** Exception types. */
static
PyObject
*
rrdtool_OperationalError
;
static
PyObject
*
rrdtool_ProgrammingError
;
static
char
*
*
rrdtool_argv
=
NULL
;
static
int
rrdtool_argc
=
0
;
/**
* PyRRD_DateTime_FromTS: convert UNIX timestamp (time_t)
* to Python datetime object.
*
* @param ts UNIX timestamp (time_t)
* @return Pointer to new PyObject (New Reference)
*/
static
PyObject
*
PyRRD_DateTime_FromTS
(
time_t
ts
)
{
PyObject
*
ret
;
struct
tm
lt
;
localtime_r
(
&
ts
,
&
lt
);
ret
=
PyDateTime_FromDateAndTime
(
lt
.
tm_year
+
1900
,
lt
.
tm_mon
+
1
,
lt
.
tm_mday
,
lt
.
tm_hour
,
lt
.
tm_min
,
lt
.
tm_sec
,
0
);
return
ret
;
}
/**
* PyRRD_String_FromCF: get string representation of CF enum index
*
* @param cf enum cf_en
* @return Null-terminated string
*/
const
char
*
PyRRD_String_FromCF
(
enum
cf_en
cf
)
{
switch
(
cf
) {
case
CF_AVERAGE
:
return
"AVERAGE"
;
case
CF_MINIMUM
:
return
"MIN"
;
case
CF_MAXIMUM
:
return
"MAX"
;
case
CF_LAST
:
return
"LAST"
;
default
:
return
"INVALID"
;
}
}
/**
* Helper function to convert Python objects into a representation that the
* rrdtool functions can work with.
*
* @param command RRDtool command name
* @param args Command arguments
* @return Zero if the function succeeds, otherwise -1
*/
static
int
convert_args
(
char
*
command
,
PyObject
*
args
)
{
PyObject
*
o
,
*
lo
;
int
i
,
j
,
args_count
,
argv_count
,
element_count
;
argv_count
=
element_count
=
0
;
args_count
=
PyTuple_Size
(
args
);
for
(
i
=
0
;
i
<
args_count
;
i
++
) {
o
=
PyTuple_GET_ITEM
(
args
,
i
);
if
(
PyRRD_String_Check
(
o
))
element_count
++
;
else
if
(
PyList_CheckExact
(
o
))
element_count
+=
PyList_Size
(
o
);
else
{
PyErr_Format
(
PyExc_TypeError
,
"Argument %d must be str or a list of str"
,
i
);
return
-1
;
}
}
rrdtool_argv
=
PyMem_New
(
char
*
,
element_count
+
1
);
if
(
rrdtool_argv
==
NULL
)
return
-1
;
for
(
i
=
0
;
i
<
args_count
;
i
++
) {
o
=
PyTuple_GET_ITEM
(
args
,
i
);
if
(
PyRRD_String_Check
(
o
))
rrdtool_argv
[
++
argv_count
]
=
PyRRD_String_AS_STRING
(
o
);
else
if
(
PyList_CheckExact
(
o
)) {
for
(
j
=
0
;
j
<
PyList_Size
(
o
);
j
++
) {
lo
=
PyList_GetItem
(
o
,
j
);
if
(
PyRRD_String_Check
(
lo
))
rrdtool_argv
[
++
argv_count
]
=
PyRRD_String_AS_STRING
(
lo
);
else
{
PyMem_Del
(
rrdtool_argv
);
PyErr_Format
(
PyExc_TypeError
,
"Element %d in argument %d must be str"
,
j
,
i
);
return
-1
;
}
}
}
else
{
PyMem_Del
(
rrdtool_argv
);
PyErr_Format
(
rrdtool_ProgrammingError
,
"Argument %d must be str or list of str"
,
i
);
return
-1
;
}
}
rrdtool_argv
[
0
]
=
command
;
rrdtool_argc
=
element_count
+
1
;
return
0
;
}
/**
* Destroy argument vector.
*/
static
void
destroy_args
(
void
)
{
PyMem_Del
(
rrdtool_argv
);
rrdtool_argv
=
NULL
;
}
/**
* Convert RRDtool info to dict.
*
* @param data RRDtool info object
* @return Python dict object
*/
static
PyObject
*
_rrdtool_util_info2dict
(
const
rrd_info_t
*
data
)
{
PyObject
*
dict
,
*
val
;
dict
=
PyDict_New
();
while
(
data
) {
val
=
NULL
;
switch
(
data
->
type
) {
case
RD_I_VAL
:
if
(
isnan
(
data
->
value
.
u_val
)) {
Py_INCREF
(
Py_None
);
val
=
Py_None
;
}
else
PyFloat_FromDouble
(
data
->
value
.
u_val
);
break
;
case
RD_I_CNT
:
val
=
PyLong_FromUnsignedLong
(
data
->
value
.
u_cnt
);
break
;
case
RD_I_INT
:
val
=
PyLong_FromLong
(
data
->
value
.
u_int
);
break
;
case
RD_I_STR
:
val
=
PyRRD_String_FromString
(
data
->
value
.
u_str
);
break
;
case
RD_I_BLO
:
val
=
PyRRD_String_FromStringAndSize
(
(
char
*
)
data
->
value
.
u_blo
.
ptr
,
data
->
value
.
u_blo
.
size
);
break
;
default
:
break
;
}
if
(
val
!=
NULL
) {
PyDict_SetItemString
(
dict
,
data
->
key
,
val
);
Py_DECREF
(
val
);
}
data
=
data
->
next
;
}
return
dict
;
}
static
char
_rrdtool_create__doc__
[]
=
"Create a new Round Robin Database.\n\n\
Usage: create(args...)\n\
Arguments:\n\n\
filename\n\
[-b|--start start time]\n\
[-s|--step step]\n\
[-t|--template template-file]\n\
[-r|--source source-file]\n\
[-O|--no-overwrite]\n\
[-d|--daemon address]\n\
[DS:ds-name[=mapped-ds-name[source-index]]:DST:heartbeat:min:max]\n\
[RRA:CF:xff:steps:rows]\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrdcreate.en.html"
;
static
PyObject
*
_rrdtool_create
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
int
status
;
if
(
convert_args
(
"create"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
status
=
rrd_create
(
rrdtool_argc
,
rrdtool_argv
);
Py_END_ALLOW_THREADS
if
(
status
==
-1
) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
Py_INCREF
(
Py_None
);
ret
=
Py_None
;
}
destroy_args
();
return
ret
;
}
static
char
_rrdtool_dump__doc__
[]
=
"Dump an RRD to XML.\n\n\
Usage: dump(args..)\n\
Arguments:\n\n\
[-h|--header {none,xsd,dtd}\n\
[-n|--no-header]\n\
[-d|--daemon address]\n\
file.rrd\n\
[file.xml]\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrddump.en.html"
;
static
PyObject
*
_rrdtool_dump
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
int
status
;
if
(
convert_args
(
"dump"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
status
=
rrd_dump
(
rrdtool_argc
,
rrdtool_argv
);
Py_END_ALLOW_THREADS
if
(
status
!=
0
) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
Py_INCREF
(
Py_None
);
ret
=
Py_None
;
}
destroy_args
();
return
ret
;
}
static
char
_rrdtool_update__doc__
[]
=
"Store a new set of values into\
the RRD.\n\n\
Usage: update(args..)\n\
Arguments:\n\n\
filename\n\
[--template|-t ds-name[:ds-name]...]\n\
N|timestamp:value[:value...]\n\
[timestamp:value[:value...] ...]\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrdupdate.en.html"
;
static
PyObject
*
_rrdtool_update
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
int
status
;
if
(
convert_args
(
"update"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
status
=
rrd_update
(
rrdtool_argc
,
rrdtool_argv
);
Py_END_ALLOW_THREADS
if
(
status
==
-1
) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
Py_INCREF
(
Py_None
);
ret
=
Py_None
;
}
destroy_args
();
return
ret
;
}
static
char
_rrdtool_updatev__doc__
[]
=
"Store a new set of values into "
\
"the Round Robin Database and return an info dictionary.\n\n\
This function works in the same manner as 'update', but will return an\n\
info dictionary instead of None."
;
static
PyObject
*
_rrdtool_updatev
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
rrd_info_t
*
data
;
if
(
convert_args
(
"updatev"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
data
=
rrd_update_v
(
rrdtool_argc
,
rrdtool_argv
);
Py_END_ALLOW_THREADS
if
(
data
==
NULL) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
ret
=
_rrdtool_util_info2dict
(
data
);
rrd_info_free
(
data
);
}
destroy_args
();
return
ret
;
}
static
char
_rrdtool_fetch__doc__
[]
=
"Fetch data from an RRD.\n\n\
Usage: fetch(args..)\n\
Arguments:\n\n\
filename\n\
CF\n\
[-r|--resolution resolution]\n\
[-s|--start start]\n\
[-e|--end end]\n\
[-a|--align-start]\n\
[-d|--daemon address]\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrdfetch.en.html"
;
static
PyObject
*
_rrdtool_fetch
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
,
*
range_tup
,
*
dsnam_tup
,
*
data_list
,
*
t
;
rrd_value_t
*
data
,
*
datai
,
dv
;
unsigned long
step
,
ds_cnt
,
i
,
j
,
row
;
time_t
start
,
end
;
char
*
*
ds_namv
;
int
status
;
if
(
convert_args
(
"fetch"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
status
=
rrd_fetch
(
rrdtool_argc
,
rrdtool_argv
,
&
start
,
&
end
,
&
step
,
&
ds_cnt
,
&
ds_namv
,
&
data
);
Py_END_ALLOW_THREADS
if
(
status
==
-1
) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
row
=
(
end
-
start
) /
step
;
ret
=
PyTuple_New
(
3
);
range_tup
=
PyTuple_New
(
3
);
dsnam_tup
=
PyTuple_New
(
ds_cnt
);
data_list
=
PyList_New
(
row
);
PyTuple_SET_ITEM
(
ret
,
0
,
range_tup
);
PyTuple_SET_ITEM
(
ret
,
1
,
dsnam_tup
);
PyTuple_SET_ITEM
(
ret
,
2
,
data_list
);
datai
=
data
;
PyTuple_SET_ITEM
(
range_tup
,
0
,
PyRRD_Int_FromLong
((
long
)
start
));
PyTuple_SET_ITEM
(
range_tup
,
1
,
PyRRD_Int_FromLong
((
long
)
end
));
PyTuple_SET_ITEM
(
range_tup
,
2
,
PyRRD_Int_FromLong
((
long
)
step
));
for
(
i
=
0
;
i
<
ds_cnt
;
i
++
)
PyTuple_SET_ITEM
(
dsnam_tup
,
i
,
PyRRD_String_FromString
(
ds_namv
[
i
]));
for
(
i
=
0
;
i
<
row
;
i
++
) {
t
=
PyTuple_New
(
ds_cnt
);
PyList_SET_ITEM
(
data_list
,
i
,
t
);
for
(
j
=
0
;
j
<
ds_cnt
;
j
++
) {
dv
=
*
(
datai
++
);
if
(
isnan
(
dv
)) {
PyTuple_SET_ITEM
(
t
,
j
,
Py_None
);
Py_INCREF
(
Py_None
);
}
else
PyTuple_SET_ITEM
(
t
,
j
,
PyFloat_FromDouble
((
double
)
dv
));
}
}
for
(
i
=
0
;
i
<
ds_cnt
;
i
++
)
rrd_freemem
(
ds_namv
[
i
]);
rrd_freemem
(
ds_namv
);
rrd_freemem
(
data
);
}
destroy_args
();
return
ret
;
}
static
char
_rrdtool_flushcached__doc__
[]
=
"Flush RRD files from memory.\n\n\
Usage: flushcached(args..)\n\
Arguments:\n\n\
[-d|--daemon address]\n\
filename\n\
[filename ...]\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrdflushcached.en.html"
;
static
PyObject
*
_rrdtool_flushcached
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
int
status
;
if
(
convert_args
(
"flushcached"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
status
=
rrd_flushcached
(
rrdtool_argc
,
rrdtool_argv
);
Py_END_ALLOW_THREADS
if
(
status
!=
0
) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
Py_INCREF
(
Py_None
);
ret
=
Py_None
;
}
destroy_args
();
return
ret
;
}
static
char
_rrdtool_graph__doc__
[]
=
"Create a graph based on one or more "
\
"RRDs.\n\n\
Usage: graph(args..)\n\
Arguments:\n\n\
filename | -\n\
[-s|--start start]\n\
[-e|--end end]\n\
[-S|--step step]\n\
[-t|--title string]\n\
[-v|--vertical-label string]\n\
[-w|--width pixels]\n\
[-h|--height pixels]\n\
[-j|--only-graph]\n\
[-D|--full-size-mode]\n\
[-u|--upper-limit value]\n\
[-l|--lower-limit value]\n\
[-r|--rigid]\n\
[-A|--alt-autoscale]\n\
[-J|--alt-autoscale-min]\n\
[-M|--alt-autoscale-max]\n\
[-N|--no-gridfit]\n\
[-x|--x-grid (GTM:GST:MTM:MST:LTM:LST:LPR:LFM|none)]\n\
[-y|--y-grid (grid step:label factor|none)]\n\
[--week-fmt strftime format string]\n\
[--left-axis-formatter formatter-name]\n\
[--left-axis-format format-string]\n\
[-Y|--alt-y-grid]\n\
[-o|--logarithmic]\n\
[-X|--units-exponent value]\n\
[-L|--units-length value]\n\
[--units=si]\n\
[--right-axis scale:shift]\n\
[--right-axis-label label]\n\
[--right-axis-format format-string]\n\
[-g|--no-legend]\n\
[-F|--force-rules-legend]\n\
[--legend-position=(north|south|west|east)]\n\
[--legend-direction=(topdown|bottomup)]\n\
[-z|--lazy]\n\
[-d|--daemon address]\n\
[-f|--imginfo printfstr]\n\
[-c|--color COLORTAG#rrggbb[aa]]\n\
[--grid-dash on:off]\n\
[--border width]\n\
[--dynamic-labels]\n\
[-m|--zoom factor]\n\
[-n|--font FONTTAG:size:[font]]\n\
[-R|--font-render-mode {normal,light,mono}]\n\
[-B|--font-smoothing-threshold size]\n\
[-P|--pango-markup]\n\
[-G|--graph-render-mode {normal,mono}]\n\
[-E|--slope-mode]\n\
[-a|--imgformat {PNG,SVG,EPS,PDF,XML,XMLENUM,JSON,JSONTIME,CSV,TSV,SSV}]\n\
[-i|--interlaced]\n\
[-T|--tabwidth value]\n\
[-b|--base value]\n\
[-W|--watermark string]\n\
[-Z|--use-nan-for-all-missing-data]\n\
DEF:vname=rrdfile:ds-name:CF[:step=step][:start=time][:end=time]\n\
CDEF:vname=RPN expression\n\
VDEF=vname:RPN expression\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrdgraph.en.html"
;
static
PyObject
*
_rrdtool_graph
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
int
xsize
,
ysize
,
i
,
status
;
double
ymin
,
ymax
;
char
*
*
calcpr
;
if
(
convert_args
(
"graph"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
status
=
rrd_graph
(
rrdtool_argc
,
rrdtool_argv
,
&
calcpr
,
&
xsize
,
&
ysize
,
NULL
,
&
ymin
,
&
ymax
);
Py_END_ALLOW_THREADS
if
(
status
==
-1
) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
ret
=
PyTuple_New
(
3
);
PyTuple_SET_ITEM
(
ret
,
0
,
PyRRD_Int_FromLong
((
long
)
xsize
));
PyTuple_SET_ITEM
(
ret
,
1
,
PyRRD_Int_FromLong
((
long
)
ysize
));
if
(
calcpr
) {
PyObject
*
e
,
*
t
;
e
=
PyList_New
(
0
);
PyTuple_SET_ITEM
(
ret
,
2
,
e
);
for
(
i
=
0
;
calcpr
[
i
];
i
++
) {
t
=
PyRRD_String_FromString
(
calcpr
[
i
]);
PyList_Append
(
e
,
t
);
Py_DECREF
(
t
);
rrd_freemem
(
calcpr
[
i
]);
}
}
else
{
Py_INCREF
(
Py_None
);
PyTuple_SET_ITEM
(
ret
,
2
,
Py_None
);
}
}
destroy_args
();
return
ret
;
}
static
char
_rrdtool_graphv__doc__
[]
=
"Create a graph based on one or more "
\
"RRDs and return data in RRDtool info format.\n\n\
This function works the same way as 'graph', but will return a info\n\
dictionary instead of None.\n\n\
Full documentation can be found at (graphv section):\n\
http://oss.oetiker.ch/rrdtool/doc/rrdgraph.en.html"
;
static
PyObject
*
_rrdtool_graphv
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
rrd_info_t
*
data
;
if
(
convert_args
(
"graphv"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
data
=
rrd_graph_v
(
rrdtool_argc
,
rrdtool_argv
);
Py_END_ALLOW_THREADS
if
(
data
==
NULL) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
ret
=
_rrdtool_util_info2dict
(
data
);
rrd_info_free
(
data
);
}
destroy_args
();
return
ret
;
}
static
char
_rrdtool_xport__doc__
[]
=
"Dictionary representation of data "
\
"stored in RRDs.\n\n\
Usage: xport(args..)\n\
Arguments:\n\n\
[-s[--start seconds]\n\
[-e|--end seconds]\n\
[-m|--maxrows rows]\n\
[--step value]\n\
[--json]\n\
[--enumds]\n\
[--daemon address]\n\
[DEF:vname=rrd:ds-name:CF]\n\
[CDEF:vname=rpn-expression]\n\
[XPORT:vname[:legend]]\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrdxport.en.html"
;
static
PyObject
*
_rrdtool_xport
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
int
xsize
,
status
;
char
*
*
legend_v
;
time_t
start
,
end
;
unsigned long
step
,
col_cnt
;
rrd_value_t
*
data
,
*
datai
;
if
(
convert_args
(
"xport"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
status
=
rrd_xport
(
rrdtool_argc
,
rrdtool_argv
,
&
xsize
,
&
start
,
&
end
,
&
step
,
&
col_cnt
,
&
legend_v
,
&
data
);
Py_END_ALLOW_THREADS
if
(
status
==
-1
) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
PyObject
*
meta_dict
,
*
data_list
,
*
legend_list
,
*
t
;
rrd_value_t
dv
;
unsigned long
i
,
j
,
row_cnt
=
(
end
-
start
) /
step
;
ret
=
PyDict_New
();
meta_dict
=
PyDict_New
();
legend_list
=
PyList_New
(
col_cnt
);
data_list
=
PyList_New
(
row_cnt
);
PyDict_SetItem
(
ret
,
PyRRD_String_FromString
(
"meta"
),
meta_dict
);
PyDict_SetItem
(
ret
,
PyRRD_String_FromString
(
"data"
),
data_list
);
datai
=
data
;
PyDict_SetItem
(
meta_dict
,
PyRRD_String_FromString
(
"start"
),
PyRRD_Int_FromLong
((
long
)
start
));
PyDict_SetItem
(
meta_dict
,
PyRRD_String_FromString
(
"end"
),
PyRRD_Int_FromLong
((
long
)
end
));
PyDict_SetItem
(
meta_dict
,
PyRRD_String_FromString
(
"step"
),
PyRRD_Int_FromLong
((
long
)
step
));
PyDict_SetItem
(
meta_dict
,
PyRRD_String_FromString
(
"rows"
),
PyRRD_Int_FromLong
((
long
)
row_cnt
));
PyDict_SetItem
(
meta_dict
,
PyRRD_String_FromString
(
"columns"
),
PyRRD_Int_FromLong
((
long
)
col_cnt
));
PyDict_SetItem
(
meta_dict
,
PyRRD_String_FromString
(
"legend"
),
legend_list
);
for
(
i
=
0
;
i
<
col_cnt
;
i
++
)
PyList_SET_ITEM
(
legend_list
,
i
,
PyRRD_String_FromString
(
legend_v
[
i
]));
for
(
i
=
0
;
i
<
row_cnt
;
i
++
) {
t
=
PyTuple_New
(
col_cnt
);
PyList_SET_ITEM
(
data_list
,
i
,
t
);
for
(
j
=
0
;
j
<
col_cnt
;
j
++
) {
dv
=
*
(
datai
++
);
if
(
isnan
(
dv
)) {
PyTuple_SET_ITEM
(
t
,
j
,
Py_None
);
Py_INCREF
(
Py_None
);
}
else
{
PyTuple_SET_ITEM
(
t
,
j
,
PyFloat_FromDouble
((
double
)
dv
));
}
}
}
for
(
i
=
0
;
i
<
col_cnt
;
i
++
)
rrd_freemem
(
legend_v
[
i
]);
rrd_freemem
(
legend_v
);
rrd_freemem
(
data
);
}
destroy_args
();
return
ret
;
}
static
char
_rrdtool_tune__doc__
[]
=
"Modify some basic properties of a "
\
"Round Robin Database.\n\n\
Usage: tune(args..)\n\
Arguments:\n\n\
filename\n\
[-h|--heartbeat ds-name:heartbeat]\n\
[-i|--minimum ds-name:min]\n\
[-a|--maximum ds-name:max]\n\
[-d|--data-source-type ds-name:DST]\n\
[-r|--data-source-rename old-name:new-name]\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrdtune.en.html"
;
static
PyObject
*
_rrdtool_tune
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
int
status
;
if
(
convert_args
(
"tune"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
status
=
rrd_tune
(
rrdtool_argc
,
rrdtool_argv
);
Py_END_ALLOW_THREADS
if
(
status
==
-1
) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
Py_INCREF
(
Py_None
);
ret
=
Py_None
;
}
destroy_args
();
return
ret
;
}
static
char
_rrdtool_first__doc__
[]
=
"Get the first UNIX timestamp of the "
\
"first data sample in an Round Robin Database.\n\n\
Usage: first(args..)\n\
Arguments:\n\n\
filename\n\
[--rraindex number]\n\
[-d|--daemon address]\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrdfirst.en.html"
;
static
PyObject
*
_rrdtool_first
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
int
ts
;
if
(
convert_args
(
"first"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
ts
=
rrd_first
(
rrdtool_argc
,
rrdtool_argv
);
Py_END_ALLOW_THREADS
if
(
ts
==
-1
) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
ret
=
PyRRD_Int_FromLong
((
long
)
ts
);
destroy_args
();
return
ret
;
}
static
char
_rrdtool_last__doc__
[]
=
"Get the UNIX timestamp of the most "
\
"recent data sample in an Round Robin Database.\n\n\
Usage: last(args..)\n\
Arguments:\n\n\
filename\n\
[-d|--daemon address]\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrdlast.en.html"
;
static
PyObject
*
_rrdtool_last
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
int
ts
;
if
(
convert_args
(
"last"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
ts
=
rrd_last
(
rrdtool_argc
,
rrdtool_argv
);
Py_END_ALLOW_THREADS
if
(
ts
==
-1
) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
ret
=
PyRRD_Int_FromLong
((
long
)
ts
);
destroy_args
();
return
ret
;
}
static
char
_rrdtool_resize__doc__
[]
=
"Modify the number of rows in a "
\
"Round Robin Database.\n\n\
Usage: resize(args..)\n\
Arguments:\n\n\
filename\n\
rra-num\n\
GROW|SHRINK\n\
rows\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrdlast.en.html"
;
static
PyObject
*
_rrdtool_resize
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
int
status
;
if
(
convert_args
(
"resize"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
status
=
rrd_resize
(
rrdtool_argc
,
rrdtool_argv
);
Py_END_ALLOW_THREADS
if
(
status
==
-1
) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
Py_INCREF
(
Py_None
);
ret
=
Py_None
;
}
destroy_args
();
return
ret
;
}
static
char
_rrdtool_info__doc__
[]
=
"Extract header information from an "
\
"Round Robin Database.\n\n\
Usage: info(filename, ...)\n\
Arguments:\n\n\
filename\n\
[-d|--daemon address]\n\
[-F|--noflush]\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrdinfo.en.html"
;
static
PyObject
*
_rrdtool_info
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
;
rrd_info_t
*
data
;
if
(
convert_args
(
"info"
,
args
)
==
-1
)
return
NULL
;
Py_BEGIN_ALLOW_THREADS
data
=
rrd_info
(
rrdtool_argc
,
rrdtool_argv
);
Py_END_ALLOW_THREADS
if
(
data
==
NULL) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
ret
=
_rrdtool_util_info2dict
(
data
);
rrd_info_free
(
data
);
}
destroy_args
();
return
ret
;
}
static
char
_rrdtool_lastupdate__doc__
[]
=
"Returns datetime and value stored "
\
"for each datum in the most recent update of an RRD.\n\n\
Usage: lastupdate(filename, ...)\n\
Arguments:\n\n\
filename\n\
[-d|--daemon address]\n\n\
Full documentation can be found at:\n\
http://oss.oetiker.ch/rrdtool/doc/rrdlastupdate.en.html"
;
static
PyObject
*
_rrdtool_lastupdate
(
PyObject
*
Py_UNUSED
(
self
),
PyObject
*
args
)
{
PyObject
*
ret
,
*
ds_dict
,
*
lastupd
;
int
status
;
time_t
last_update
;
char
*
*
ds_names
,
*
*
last_ds
;
unsigned long
ds_cnt
,
i
;
if
(
convert_args
(
"lastupdate"
,
args
)
==
-1
)
return
NULL
;
else
if
(
rrdtool_argc
<
2
) {
PyErr_SetString
(
rrdtool_ProgrammingError
,
"Missing filename argument"
);
return
NULL
;
}
Py_BEGIN_ALLOW_THREADS
status
=
rrd_lastupdate_r
(
rrdtool_argv
[
1
],
&
last_update
,
&
ds_cnt
,
&
ds_names
,
&
last_ds
);
Py_END_ALLOW_THREADS
if
(
status
!=
0
) {
PyErr_SetString
(
rrdtool_OperationalError
,
rrd_get_error
());
rrd_clear_error
();
ret
=
NULL
;
}
else
{
/* convert last_update to Python datetime object */
ret
=
PyDict_New
();
ds_dict
=
PyDict_New
();
lastupd
=
PyRRD_DateTime_FromTS
(
last_update
);
PyDict_SetItemString
(
ret
,
"date"
,
lastupd
);
PyDict_SetItemString
(
ret
,
"ds"
,
ds_dict
);
Py_DECREF
(
lastupd
);
Py_DECREF
(
ds_dict
);
for
(
i
=
0
;
i
<
ds_cnt
;
i
++
) {
PyObject
*
val
=
Py_None
;
double
num
;
if
(
sscanf
(
last_ds
[
i
],
"%lf"
,
&
num
)
==
1
) {
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