5 #include "rrd_rpncalc.h"
8 #define MAX_VNAME_LEN 29
9 #define DEF_NAM_FMT "%29[-_A-Za-z0-9]"
11 #define ALTYGRID 0x01 /* use alternative y grid algorithm */
12 #define ALTAUTOSCALE 0x02 /* use alternative algorithm to find lower and upper bounds */
13 #define ALTAUTOSCALE_MAX 0x04 /* use alternative algorithm to find upper bounds */
14 #define NOLEGEND 0x08 /* use no legend */
15 #define NOMINOR 0x20 /* Turn off minor gridlines */
16 #define ONLY_GRAPH 0x24 /* use only graph */
17 #define FORCE_RULES_LEGEND 0x40 /* force printing of HRULE and VRULE legend */
20 enum tmt_en {TMT_SECOND=0,TMT_MINUTE,TMT_HOUR,TMT_DAY,
21 TMT_WEEK,TMT_MONTH,TMT_YEAR};
23 enum grc_en {GRC_CANVAS=0,GRC_BACK,GRC_SHADEA,GRC_SHADEB,
24 GRC_GRID,GRC_MGRID,GRC_FONT,GRC_FRAME,GRC_ARROW,__GRC_END__};
26 #define MGRIDWIDTH 0.6
29 enum gf_en {GF_PRINT=0,GF_GPRINT,GF_COMMENT,GF_HRULE,GF_VRULE,GF_LINE,
30 GF_AREA,GF_STACK,GF_TICK,
31 GF_DEF, GF_CDEF, GF_VDEF, GF_SHIFT,
35 VDEF_MAXIMUM /* like the MAX in (G)PRINT */
36 ,VDEF_MINIMUM /* like the MIN in (G)PRINT */
37 ,VDEF_AVERAGE /* like the AVERAGE in (G)PRINT */
38 ,VDEF_PERCENT /* Nth percentile */
39 ,VDEF_TOTAL /* average multiplied by time */
40 ,VDEF_FIRST /* first non-unknown value and time */
41 ,VDEF_LAST /* last non-unknown value and time */
43 enum text_prop_en { TEXT_PROP_DEFAULT=0, /* default settings */
44 TEXT_PROP_TITLE, /* properties for the title */
45 TEXT_PROP_AXIS, /* for the numbers next to the axis */
46 TEXT_PROP_UNIT, /* for the vertical unit description */
47 TEXT_PROP_LEGEND, /* fot the legend below the graph */
50 typedef struct text_prop_t {
56 typedef struct vdef_t {
58 double param; /* parameter for function, if applicable */
59 double val; /* resulting value */
60 time_t when; /* timestamp, if applicable */
63 typedef struct xlab_t {
64 long minsec; /* minimum sec per pix */
65 enum tmt_en gridtm; /* grid interval in what ?*/
66 long gridst; /* how many whats per grid*/
67 enum tmt_en mgridtm; /* label interval in what ?*/
68 long mgridst; /* how many whats per label*/
69 enum tmt_en labtm; /* label interval in what ?*/
70 long labst; /* how many whats per label*/
71 long precis; /* label precision -> label placement*/
72 char *stst; /* strftime string*/
75 typedef struct ygrid_scale_t { /* y axis grid scaling info */
81 /* sensible y label intervals ...*/
83 typedef struct ylab_t {
84 double grid; /* grid spacing */
85 int lfac[4]; /* associated label spacing*/
89 /* this structure describes the elements which can make up a graph.
90 because they are quite diverse, not all elements will use all the
91 possible parts of the structure. */
93 #define FMT_LEG_LEN 200
95 #define FMT_LEG_LEN 2000
98 typedef struct graph_desc_t {
99 enum gf_en gf; /* graphing function */
100 int stack; /* boolean */
101 int debug; /* boolean */
102 char vname[MAX_VNAME_LEN+1]; /* name of the variable */
103 long vidx; /* gdes reference */
104 char rrd[255]; /* name of the rrd_file containing data */
105 char ds_nam[DS_NAM_SIZE]; /* data source name */
106 long ds; /* data source number */
107 enum cf_en cf; /* consolidation function */
108 enum cf_en cf_reduce; /* consolidation function for reduce_data() */
109 gfx_color_t col; /* graph color */
110 char format[FMT_LEG_LEN+5]; /* format for PRINT AND GPRINT */
111 char legend[FMT_LEG_LEN+5]; /* legend*/
112 double leg_x,leg_y; /* location of legend */
113 double yrule; /* value for y rule line and for VDEF */
114 time_t xrule; /* time for x rule line and for VDEF */
115 vdef_t vf; /* instruction for VDEF function */
116 rpnp_t *rpnp; /* instructions for CDEF function */
118 /* SHIFT implementation */
119 int shidx; /* gdes reference for offset (-1 --> constant) */
120 time_t shval; /* offset if shidx is -1 */
121 time_t shift; /* current shift applied */
123 /* description of data fetched for the graph element */
124 time_t start,end; /* timestaps for first and last data element */
125 unsigned long step; /* time between samples */
126 unsigned long ds_cnt; /* how many data sources are there in the fetch */
127 long data_first; /* first pointer to this data */
128 char **ds_namv; /* name of datasources in the fetch. */
129 rrd_value_t *data; /* the raw data drawn from the rrd */
130 rrd_value_t *p_data; /* processed data, xsize elments */
131 double linewidth; /* linewideth */
134 typedef struct image_desc_t {
136 /* configuration of graph */
138 char graphfile[MAXPATH]; /* filename for graphic */
139 FILE *graphhandle; /* FILE to use if filename is "-" */
140 long xsize,ysize,piesize; /* graph area size in pixels */
141 gfx_color_t graph_col[__GRC_END__]; /* real colors for the graph */
142 text_prop_t text_prop[TEXT_PROP_LAST]; /* text properties */
143 char ylegend[200]; /* legend along the yaxis */
144 char title[200]; /* title for graph */
145 int draw_x_grid; /* no x-grid at all */
146 int draw_y_grid; /* no x-grid at all */
147 double grid_dash_on, grid_dash_off;
148 xlab_t xlab_user; /* user defined labeling for xaxis */
149 char xlab_form[200]; /* format for the label on the xaxis */
151 double ygridstep; /* user defined step for y grid */
152 int ylabfact; /* every how many y grid shall a label be written ? */
153 double tabwidth; /* tabwdith */
154 time_t start,end; /* what time does the graph cover */
155 unsigned long step; /* any preference for the default step ? */
156 rrd_value_t minval,maxval; /* extreme values in the data */
157 int rigid; /* do not expand range even with
159 ygrid_scale_t ygrid_scale; /* calculated y axis grid info */
160 int gridfit; /* adjust y-axis range etc so all
161 grindlines falls in integer pixel values */
162 char* imginfo; /* construct an <IMG ... tag and return
164 int lazy; /* only update the image if there is
165 reasonable probablility that the
166 existing one is out of date */
167 int logarithmic; /* scale the yaxis logarithmic */
169 /* status information */
171 long xorigin,yorigin;/* where is (0,0) of the graph */
172 long pie_x,pie_y; /* where is the centerpoint */
173 long ximg,yimg; /* total size of the image */
174 double magfact; /* numerical magnitude*/
175 long base; /* 1000 or 1024 depending on what we graph */
176 char symbol; /* magnitude symbol for y-axis */
177 int unitsexponent; /* 10*exponent for units on y-asis */
178 int extra_flags; /* flags for boolean options */
181 long prt_c; /* number of print elements */
182 long gdes_c; /* number of graphics elements */
183 graph_desc_t *gdes; /* points to an array of graph elements */
184 gfx_canvas_t *canvas; /* graphics library */
188 int xtr(image_desc_t *,time_t);
189 double ytr(image_desc_t *, double);
190 enum gf_en gf_conv(char *);
191 enum gfx_if_en if_conv(char *);
192 enum tmt_en tmt_conv(char *);
193 enum grc_en grc_conv(char *);
194 enum text_prop_en text_prop_conv(char *);
195 int im_free(image_desc_t *);
196 void auto_scale( image_desc_t *, double *, char **, double *);
197 void si_unit( image_desc_t *);
198 void expand_range(image_desc_t *);
199 void apply_gridfit(image_desc_t *);
200 void reduce_data( enum cf_en, unsigned long, time_t *, time_t *, unsigned long *, unsigned long *, rrd_value_t **);
201 int data_fetch( image_desc_t *);
202 long find_var(image_desc_t *, char *);
203 long find_var_wrapper(void *arg1, char *key);
205 int data_calc( image_desc_t *);
206 int data_proc( image_desc_t *);
207 time_t find_first_time( time_t, enum tmt_en, long);
208 time_t find_next_time( time_t, enum tmt_en, long);
209 int print_calc(image_desc_t *, char ***);
210 int leg_place(image_desc_t *);
211 int calc_horizontal_grid(image_desc_t *);
212 int draw_horizontal_grid(image_desc_t *);
213 int horizontal_log_grid(image_desc_t *);
214 void vertical_grid(image_desc_t *);
215 void axis_paint(image_desc_t *);
216 void grid_paint(image_desc_t *);
217 int lazy_check(image_desc_t *);
218 int graph_paint(image_desc_t *, char ***);
219 void pie_part(image_desc_t *, gfx_color_t, double, double, double, double, double);
220 int gdes_alloc(image_desc_t *);
221 int scan_for_col(char *, int, char *);
222 int rrd_graph(int, char **, char ***, int *, int *, FILE *, double *, double *);
223 void rrd_graph_init(image_desc_t *);
224 void rrd_graph_options(int, char **, image_desc_t *);
225 void rrd_graph_script(int, char **, image_desc_t *, int);
226 int rrd_graph_check_vname(image_desc_t *, char *, char *);
227 int rrd_graph_color(image_desc_t *, char *, char *, int);
228 int rrd_graph_legend(graph_desc_t *, char *);
229 int bad_format(char *);
230 int vdef_parse(struct graph_desc_t *,char *);
231 int vdef_calc(image_desc_t *, int);
232 int vdef_percent_compar(const void *,const void *);
233 int graph_size_location(image_desc_t *, int, int);