4 * RRDTool Python binding
6 * Author : Hye-Shik Chang <perky@fallin.lv>
7 * Date : $Date: 2003/02/22 07:41:19 $
8 * Created : 23 May 2002
12 * ==========================================================================
13 * This file is part of py-rrdtool.
15 * py-rrdtool is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU Lesser General Public License as published
17 * by the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
20 * py-rrdtool is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU Lesser General Public License for more details.
25 * You should have received a copy of the GNU Lesser General Public License
26 * along with Foobar; if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
32 #elif defined(__GNUC__)
33 # define UNUSED(x) x __attribute__((unused))
34 #elif defined(__LCLINT__)
35 # define UNUSED(x) /*@unused@*/ x
41 #include "../../rrd_config.h"
42 static const char *__version__ = PACKAGE_VERSION;
45 #include "../../src/rrd_tool.h"
47 //#include "rrd_extra.h"
49 static PyObject *ErrorObject;
53 /* forward declaration to keep compiler happy */
57 static int create_args(
69 args_count = PyTuple_Size(args);
71 for (i = 0; i < args_count; i++) {
72 o = PyTuple_GET_ITEM(args, i);
73 if (PyString_Check(o))
75 else if (PyList_CheckExact(o))
76 element_count += PyList_Size(o);
78 PyErr_Format(PyExc_TypeError, "argument %d must be string or list of strings", i);
83 *argv = PyMem_New(char *,
90 for (i = 0; i < args_count; i++) {
91 o = PyTuple_GET_ITEM(args, i);
92 if (PyString_Check(o)) {
94 (*argv)[argv_count] = PyString_AS_STRING(o);
95 } else if (PyList_CheckExact(o))
96 for (j = 0; j < PyList_Size(o); j++) {
97 lo = PyList_GetItem(o, j);
98 if (PyString_Check(lo)) {
100 (*argv)[argv_count] = PyString_AS_STRING(lo);
103 PyErr_Format(PyExc_TypeError, "element %d in argument %d must be string", j, i);
109 PyErr_Format(PyExc_TypeError, "argument %d must be string or list of strings", i);
114 (*argv)[0] = command;
115 *argc = element_count + 1;
117 /* reset getopt state */
123 static void destroy_args(
130 static char PyRRD_create__doc__[] =
131 "create(args..): Set up a new Round Robin Database\n\
132 create filename [--start|-b start time] \
133 [--step|-s step] [DS:ds-name:DST:heartbeat:min:max] \
134 [RRA:CF:xff:steps:rows]";
136 static PyObject *PyRRD_create(
137 PyObject UNUSED(*self),
144 if (create_args("create", args, &argc, &argv) < 0)
147 if (rrd_create(argc, argv) == -1) {
148 PyErr_SetString(ErrorObject, rrd_get_error());
160 static char PyRRD_update__doc__[] =
161 "update(args..): Store a new set of values into the rrd\n"
162 " update filename [--template|-t ds-name[:ds-name]...] "
163 "N|timestamp:value[:value...] [timestamp:value[:value...] ...]";
165 static PyObject *PyRRD_update(
166 PyObject UNUSED(*self),
173 if (create_args("update", args, &argc, &argv) < 0)
176 if (rrd_update(argc, argv) == -1) {
177 PyErr_SetString(ErrorObject, rrd_get_error());
189 static char PyRRD_fetch__doc__[] =
190 "fetch(args..): fetch data from an rrd.\n"
191 " fetch filename CF [--resolution|-r resolution] "
192 "[--start|-s start] [--end|-e end]";
194 static PyObject *PyRRD_fetch(
195 PyObject UNUSED(*self),
199 rrd_value_t *data, *datai;
200 unsigned long step, ds_cnt;
203 char **argv, **ds_namv;
205 if (create_args("fetch", args, &argc, &argv) < 0)
208 if (rrd_fetch(argc, argv, &start, &end, &step,
209 &ds_cnt, &ds_namv, &data) == -1) {
210 PyErr_SetString(ErrorObject, rrd_get_error());
215 ((start, end, step), (name1, name2, ...), [(data1, data2, ..), ...]) */
216 PyObject *range_tup, *dsnam_tup, *data_list, *t;
217 unsigned long i, j, row;
220 row = (end - start) / step;
223 range_tup = PyTuple_New(3);
224 dsnam_tup = PyTuple_New(ds_cnt);
225 data_list = PyList_New(row);
226 PyTuple_SET_ITEM(r, 0, range_tup);
227 PyTuple_SET_ITEM(r, 1, dsnam_tup);
228 PyTuple_SET_ITEM(r, 2, data_list);
232 PyTuple_SET_ITEM(range_tup, 0, PyInt_FromLong((long) start));
233 PyTuple_SET_ITEM(range_tup, 1, PyInt_FromLong((long) end));
234 PyTuple_SET_ITEM(range_tup, 2, PyInt_FromLong((long) step));
236 for (i = 0; i < ds_cnt; i++)
237 PyTuple_SET_ITEM(dsnam_tup, i, PyString_FromString(ds_namv[i]));
239 for (i = 0; i < row; i++) {
240 t = PyTuple_New(ds_cnt);
241 PyList_SET_ITEM(data_list, i, t);
243 for (j = 0; j < ds_cnt; j++) {
246 PyTuple_SET_ITEM(t, j, Py_None);
249 PyTuple_SET_ITEM(t, j, PyFloat_FromDouble((double) dv));
254 for (i = 0; i < ds_cnt; i++)
255 rrd_freemem(ds_namv[i]);
256 rrd_freemem(ds_namv); /* rrdtool don't use PyMem_Malloc :) */
264 static char PyRRD_graph__doc__[] =
265 "graph(args..): Create a graph based on data from one or several RRD\n"
266 " graph filename [-s|--start seconds] "
267 "[-e|--end seconds] [-x|--x-grid x-axis grid and label] "
268 "[-y|--y-grid y-axis grid and label] [--alt-y-grid] [--alt-y-mrtg] "
269 "[--alt-autoscale] [--alt-autoscale-max] [--units-exponent] value "
270 "[-v|--vertical-label text] [-w|--width pixels] [-h|--height pixels] "
272 "[-f|--imginfo formatstring] [-a|--imgformat GIF|PNG|GD] "
273 "[-B|--background value] [-O|--overlay value] "
274 "[-U|--unit value] [-z|--lazy] [-o|--logarithmic] "
275 "[-u|--upper-limit value] [-l|--lower-limit value] "
276 "[-g|--no-legend] [-r|--rigid] [--step value] "
277 "[-b|--base value] [-c|--color COLORTAG#rrggbb] "
278 "[-t|--title title] [DEF:vname=rrd:ds-name:CF] "
279 "[CDEF:vname=rpn-expression] [PRINT:vname:CF:format] "
280 "[GPRINT:vname:CF:format] [COMMENT:text] "
281 "[HRULE:value#rrggbb[:legend]] [VRULE:time#rrggbb[:legend]] "
282 "[LINE{1|2|3}:vname[#rrggbb[:legend]]] "
283 "[AREA:vname[#rrggbb[:legend]]] " "[STACK:vname[#rrggbb[:legend]]]";
285 static PyObject *PyRRD_graph(
286 PyObject UNUSED(*self),
290 char **argv, **calcpr;
291 int argc, xsize, ysize, i;
294 if (create_args("graph", args, &argc, &argv) < 0)
297 if (rrd_graph(argc, argv, &calcpr, &xsize, &ysize, NULL, &ymin, &ymax) ==
299 PyErr_SetString(ErrorObject, rrd_get_error());
305 PyTuple_SET_ITEM(r, 0, PyInt_FromLong((long) xsize));
306 PyTuple_SET_ITEM(r, 1, PyInt_FromLong((long) ysize));
312 PyTuple_SET_ITEM(r, 2, e);
314 for (i = 0; calcpr[i]; i++) {
315 t = PyString_FromString(calcpr[i]);
318 rrd_freemem(calcpr[i]);
323 PyTuple_SET_ITEM(r, 2, Py_None);
331 static char PyRRD_tune__doc__[] =
332 "tune(args...): Modify some basic properties of a Round Robin Database\n"
333 " tune filename [--heartbeat|-h ds-name:heartbeat] "
334 "[--minimum|-i ds-name:min] [--maximum|-a ds-name:max] "
335 "[--data-source-type|-d ds-name:DST] [--data-source-rename|-r old-name:new-name]";
337 static PyObject *PyRRD_tune(
338 PyObject UNUSED(*self),
345 if (create_args("tune", args, &argc, &argv) < 0)
348 if (rrd_tune(argc, argv) == -1) {
349 PyErr_SetString(ErrorObject, rrd_get_error());
361 static char PyRRD_first__doc__[] =
362 "first(filename): Return the timestamp of the first data sample in an RRD";
364 static PyObject *PyRRD_first(
365 PyObject UNUSED(*self),
372 if (create_args("first", args, &argc, &argv) < 0)
375 if ((ts = rrd_first(argc, argv)) == -1) {
376 PyErr_SetString(ErrorObject, rrd_get_error());
380 r = PyInt_FromLong((long) ts);
386 static char PyRRD_last__doc__[] =
387 "last(filename): Return the timestamp of the last data sample in an RRD";
389 static PyObject *PyRRD_last(
390 PyObject UNUSED(*self),
397 if (create_args("last", args, &argc, &argv) < 0)
400 if ((ts = rrd_last(argc, argv)) == -1) {
401 PyErr_SetString(ErrorObject, rrd_get_error());
405 r = PyInt_FromLong((long) ts);
411 static char PyRRD_resize__doc__[] =
412 "resize(args...): alters the size of an RRA.\n"
413 " resize filename rra-num GROW|SHRINK rows";
415 static PyObject *PyRRD_resize(
416 PyObject UNUSED(*self),
423 if (create_args("resize", args, &argc, &argv) < 0)
426 if ((ts = rrd_resize(argc, argv)) == -1) {
427 PyErr_SetString(ErrorObject, rrd_get_error());
439 static PyObject *PyDict_FromInfo(
446 PyObject *val = NULL;
448 switch (data->type) {
450 val = isnan(data->value.u_val)
451 ? (Py_INCREF(Py_None), Py_None)
452 : PyFloat_FromDouble(data->value.u_val);
455 val = PyLong_FromUnsignedLong(data->value.u_cnt);
458 val = PyLong_FromLong(data->value.u_int);
461 val = PyString_FromString(data->value.u_str);
465 PyString_FromStringAndSize((char *) data->value.u_blo.ptr,
466 data->value.u_blo.size);
470 PyDict_SetItemString(r, data->key, val);
478 static char PyRRD_info__doc__[] =
479 "info(filename): extract header information from an rrd";
481 static PyObject *PyRRD_info(
482 PyObject UNUSED(*self),
490 if (create_args("info", args, &argc, &argv) < 0)
493 if ((data = rrd_info(argc, argv)) == NULL) {
494 PyErr_SetString(ErrorObject, rrd_get_error());
498 r = PyDict_FromInfo(data);
506 static char PyRRD_graphv__doc__[] =
507 "graphv is called in the same manner as graph";
509 static PyObject *PyRRD_graphv(
510 PyObject UNUSED(*self),
518 if (create_args("graphv", args, &argc, &argv) < 0)
521 if ((data = rrd_graph_v(argc, argv)) == NULL) {
522 PyErr_SetString(ErrorObject, rrd_get_error());
526 r = PyDict_FromInfo(data);
534 static char PyRRD_updatev__doc__[] =
535 "updatev is called in the same manner as update";
537 static PyObject *PyRRD_updatev(
538 PyObject UNUSED(*self),
546 if (create_args("updatev", args, &argc, &argv) < 0)
549 if ((data = rrd_update_v(argc, argv)) == NULL) {
550 PyErr_SetString(ErrorObject, rrd_get_error());
554 r = PyDict_FromInfo(data);
562 static char PyRRD_flushcached__doc__[] =
563 "flush(args..): flush RRD files from memory\n"
564 " flush [--daemon address] file [file ...]";
566 static PyObject *PyRRD_flushcached(
567 PyObject UNUSED(*self),
574 if (create_args("flushcached", args, &argc, &argv) < 0)
577 if (rrd_flushcached(argc, argv) != 0) {
578 PyErr_SetString(ErrorObject, rrd_get_error());
590 /* List of methods defined in the module */
591 #define meth(name, func, doc) {name, (PyCFunction)func, METH_VARARGS, doc}
593 static PyMethodDef _rrdtool_methods[] = {
594 meth("create", PyRRD_create, PyRRD_create__doc__),
595 meth("update", PyRRD_update, PyRRD_update__doc__),
596 meth("fetch", PyRRD_fetch, PyRRD_fetch__doc__),
597 meth("graph", PyRRD_graph, PyRRD_graph__doc__),
598 meth("tune", PyRRD_tune, PyRRD_tune__doc__),
599 meth("first", PyRRD_first, PyRRD_first__doc__),
600 meth("last", PyRRD_last, PyRRD_last__doc__),
601 meth("resize", PyRRD_resize, PyRRD_resize__doc__),
602 meth("info", PyRRD_info, PyRRD_info__doc__),
603 meth("graphv", PyRRD_graphv, PyRRD_graphv__doc__),
604 meth("updatev", PyRRD_updatev, PyRRD_updatev__doc__),
605 meth("flushcached", PyRRD_flushcached, PyRRD_flushcached__doc__),
606 {NULL, NULL, 0, NULL}
609 #define SET_INTCONSTANT(dict, value) \
610 t = PyInt_FromLong((long)value); \
611 PyDict_SetItemString(dict, #value, t); \
613 #define SET_STRCONSTANT(dict, value) \
614 t = PyString_FromString(value); \
615 PyDict_SetItemString(dict, #value, t); \
618 /* Initialization function for the module */
624 /* Create the module and add the functions */
625 m = Py_InitModule("rrdtool", _rrdtool_methods);
627 /* Add some symbolic constants to the module */
628 d = PyModule_GetDict(m);
630 SET_STRCONSTANT(d, __version__);
631 ErrorObject = PyErr_NewException("rrdtool.error", NULL, NULL);
632 PyDict_SetItemString(d, "error", ErrorObject);
634 /* Check for errors */
635 if (PyErr_Occurred())
636 Py_FatalError("can't initialize the rrdtool module");
640 * $Id: _rrdtoolmodule.c,v 1.14 2003/02/22 07:41:19 perky Exp $