1 #include "rrd_tool.h"
2 #include "rrd_rpncalc.h"
4 #define MAX_VNAME_LEN 29
5 #define DEF_NAM_FMT "%29[_A-Za-z0-9]"
7 #define ALTYGRID 0x01 /* use alternative y grid algorithm */
8 #define ALTAUTOSCALE 0x02 /* use alternative algorithm to find lower and upper bounds */
9 #define ALTAUTOSCALE_MAX 0x04 /* use alternative algorithm to find upper bounds */
10 #define NOLEGEND 0x08 /* use no legend */
13 enum tmt_en {TMT_SECOND=0,TMT_MINUTE,TMT_HOUR,TMT_DAY,
14 TMT_WEEK,TMT_MONTH,TMT_YEAR};
16 enum grc_en {GRC_CANVAS=0,GRC_BACK,GRC_SHADEA,GRC_SHADEB,
17 GRC_GRID,GRC_MGRID,GRC_FONT,GRC_FRAME,GRC_ARROW,__GRC_END__};
20 enum gf_en {GF_PRINT=0,GF_GPRINT,GF_COMMENT,GF_HRULE,GF_VRULE,GF_LINE1,
21 GF_LINE2,GF_LINE3,GF_AREA,GF_STACK,GF_TICK,
22 GF_DEF, GF_CDEF, GF_VDEF};
24 enum if_en {IF_GIF=0,IF_PNG=1};
26 enum vdef_op_en {
27 VDEF_MAXIMUM /* like the MAX in (G)PRINT */
28 ,VDEF_MINIMUM /* like the MIN in (G)PRINT */
29 ,VDEF_AVERAGE /* like the AVERAGE in (G)PRINT */
30 ,VDEF_PERCENT /* Nth percentile */
31 ,VDEF_TOTAL /* average multiplied by time */
32 ,VDEF_FIRST /* first non-unknown value and time */
33 ,VDEF_LAST /* last non-unknown value and time */
34 };
35 typedef struct vdef_t {
36 enum vdef_op_en op;
37 double param; /* parameter for function, if applicable */
38 double val; /* resulting value */
39 time_t when; /* timestamp, if applicable */
40 } vdef_t;
42 typedef struct col_trip_t {
43 int red; /* red = -1 is no color */
44 int green;
45 int blue;
46 int i; /* color index assigned in gif image i=-1 is unasigned*/
47 } col_trip_t;
50 typedef struct xlab_t {
51 long minsec; /* minimum sec per pix */
52 enum tmt_en gridtm; /* grid interval in what ?*/
53 long gridst; /* how many whats per grid*/
54 enum tmt_en mgridtm; /* label interval in what ?*/
55 long mgridst; /* how many whats per label*/
56 enum tmt_en labtm; /* label interval in what ?*/
57 long labst; /* how many whats per label*/
58 long precis; /* label precision -> label placement*/
59 char *stst; /* strftime string*/
60 } xlab_t;
62 #if 0
63 xlab_t xlab[] = {
64 {0, TMT_SECOND,30, TMT_MINUTE,5, TMT_MINUTE,5, 0,"%H:%M"},
65 {2, TMT_MINUTE,1, TMT_MINUTE,5, TMT_MINUTE,5, 0,"%H:%M"},
66 {5, TMT_MINUTE,2, TMT_MINUTE,10, TMT_MINUTE,10, 0,"%H:%M"},
67 {10, TMT_MINUTE,5, TMT_MINUTE,20, TMT_MINUTE,20, 0,"%H:%M"},
68 {30, TMT_MINUTE,10, TMT_HOUR,1, TMT_HOUR,1, 0,"%H:%M"},
69 {60, TMT_MINUTE,30, TMT_HOUR,2, TMT_HOUR,2, 0,"%H:%M"},
70 {180, TMT_HOUR,1, TMT_HOUR,6, TMT_HOUR,6, 0,"%H:%M"},
71 /*{300, TMT_HOUR,3, TMT_HOUR,12, TMT_HOUR,12, 12*3600,"%a %p"}, this looks silly*/
72 {600, TMT_HOUR,6, TMT_DAY,1, TMT_DAY,1, 24*3600,"%a"},
73 {1800, TMT_HOUR,12, TMT_DAY,1, TMT_DAY,2, 24*3600,"%a"},
74 {3600, TMT_DAY,1, TMT_WEEK,1, TMT_WEEK,1, 7*24*3600,"Week %W"},
75 {3*3600, TMT_WEEK,1, TMT_MONTH,1, TMT_WEEK,2, 7*24*3600,"Week %W"},
76 {6*3600, TMT_MONTH,1, TMT_MONTH,1, TMT_MONTH,1, 30*24*3600,"%b"},
77 {48*3600, TMT_MONTH,1, TMT_MONTH,3, TMT_MONTH,3, 30*24*3600,"%b"},
78 {10*24*3600, TMT_YEAR,1, TMT_YEAR,1, TMT_YEAR,1, 365*24*3600,"%y"},
79 {-1,TMT_MONTH,0,TMT_MONTH,0,TMT_MONTH,0,0,""}
80 };
82 /* sensible logarithmic y label intervals ...
83 the first element of each row defines the possible starting points on the
84 y axis ... the other specify the */
86 double yloglab[][12]= {{ 1e9, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
87 { 1e3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
88 { 1e1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
89 /* { 1e1, 1, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, */
90 { 1e1, 1, 2.5, 5, 7.5, 0, 0, 0, 0, 0, 0, 0 },
91 { 1e1, 1, 2, 4, 6, 8, 0, 0, 0, 0, 0, 0 },
92 { 1e1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0 },
93 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }};
95 #endif
97 /* sensible y label intervals ...*/
99 typedef struct ylab_t {
100 double grid; /* grid spacing */
101 int lfac[4]; /* associated label spacing*/
102 } ylab_t;
104 #if 0
105 ylab_t ylab[]= {
106 {0.1, {1,2, 5,10}},
107 {0.2, {1,5,10,20}},
108 {0.5, {1,2, 4,10}},
109 {1.0, {1,2, 5,10}},
110 {2.0, {1,5,10,20}},
111 {5.0, {1,2, 4,10}},
112 {10.0, {1,2, 5,10}},
113 {20.0, {1,5,10,20}},
114 {50.0, {1,2, 4,10}},
115 {100.0, {1,2, 5,10}},
116 {200.0, {1,5,10,20}},
117 {500.0, {1,2, 4,10}},
118 {0.0, {0,0,0,0}}};
122 col_trip_t graph_col[] = { /* default colors */
123 {255,255,255,-1}, /* canvas */
124 {245,245,245,-1}, /* background */
125 {200,200,200,-1}, /* shade A */
126 {150,150,150,-1}, /* shade B */
127 {140,140,140,-1}, /* grid */
128 {130,30,30,-1}, /* major grid */
129 {0,0,0,-1}, /* font */
130 {0,0,0,-1}, /* frame */
131 {255,0,0,-1} /*arrow*/
132 };
134 #endif
136 /* this structure describes the elements which can make up a graph.
137 because they are quite diverse, not all elements will use all the
138 possible parts of the structure. */
139 #ifdef HAVE_SNPRINTF
140 #define FMT_LEG_LEN 200
141 #else
142 #define FMT_LEG_LEN 2000
143 #endif
145 typedef struct graph_desc_t {
146 enum gf_en gf; /* graphing function */
147 char vname[MAX_VNAME_LEN+1]; /* name of the variable */
148 long vidx; /* gdes reference */
149 char rrd[255]; /* name of the rrd_file containing data */
150 char ds_nam[DS_NAM_SIZE]; /* data source name */
151 long ds; /* data source number */
152 enum cf_en cf; /* consolidation function */
153 col_trip_t col; /* graph color */
154 char format[FMT_LEG_LEN+5]; /* format for PRINT AND GPRINT */
155 char legend[FMT_LEG_LEN+5]; /* legend*/
156 gdPoint legloc; /* location of legend */
157 double yrule; /* value for y rule line and for VDEF */
158 time_t xrule; /* time for x rule line and for VDEF */
159 vdef_t vf; /* instruction for VDEF function */
160 rpnp_t *rpnp; /* instructions for CDEF function */
162 /* description of data fetched for the graph element */
163 time_t start,end; /* timestaps for first and last data element */
164 unsigned long step; /* time between samples */
165 unsigned long ds_cnt; /* how many data sources are there in the fetch */
166 long data_first; /* first pointer to this data */
167 char **ds_namv; /* name of datasources in the fetch. */
168 rrd_value_t *data; /* the raw data drawn from the rrd */
169 rrd_value_t *p_data; /* processed data, xsize elments */
171 } graph_desc_t;
173 typedef struct image_desc_t {
175 /* configuration of graph */
177 char graphfile[MAXPATH]; /* filename for graphic */
178 long xsize,ysize; /* graph area size in pixels */
179 col_trip_t graph_col[__GRC_END__]; /* real colors for the graph */
180 char ylegend[200]; /* legend along the yaxis */
181 char title[200]; /* title for graph */
182 int draw_x_grid; /* no x-grid at all */
183 int draw_y_grid; /* no x-grid at all */
184 xlab_t xlab_user; /* user defined labeling for xaxis */
185 char xlab_form[200]; /* format for the label on the xaxis */
187 double ygridstep; /* user defined step for y grid */
188 int ylabfact; /* every how many y grid shall a label be written ? */
190 time_t start,end; /* what time does the graph cover */
191 unsigned long step; /* any preference for the default step ? */
192 rrd_value_t minval,maxval; /* extreme values in the data */
193 int rigid; /* do not expand range even with
194 values outside */
195 char* imginfo; /* construct an <IMG ... tag and return
196 as first retval */
197 int lazy; /* only update the gif if there is reasonable
198 probablility that the existing one is out of date */
199 int logarithmic; /* scale the yaxis logarithmic */
200 enum if_en imgformat; /* image format */
202 /* status information */
204 long xorigin,yorigin;/* where is (0,0) of the graph */
205 long xgif,ygif; /* total size of the gif */
206 int interlaced; /* will the graph be interlaced? */
207 double magfact; /* numerical magnitude*/
208 long base; /* 1000 or 1024 depending on what we graph */
209 char symbol; /* magnitude symbol for y-axis */
210 int unitsexponent; /* 10*exponent for units on y-asis */
211 int extra_flags; /* flags for boolean options */
212 /* data elements */
214 long prt_c; /* number of print elements */
215 long gdes_c; /* number of graphics elements */
216 graph_desc_t *gdes; /* points to an array of graph elements */
218 } image_desc_t;
220 /* Prototypes */
221 int xtr(image_desc_t *,time_t);
222 int ytr(image_desc_t *, double);
223 enum gf_en gf_conv(char *);
224 enum if_en if_conv(char *);
225 enum tmt_en tmt_conv(char *);
226 enum grc_en grc_conv(char *);
227 int im_free(image_desc_t *);
228 void auto_scale( image_desc_t *, double *, char **, double *);
229 void si_unit( image_desc_t *);
230 void expand_range(image_desc_t *);
231 void reduce_data( enum cf_en, unsigned long, time_t *, time_t *, unsigned long *, unsigned long *, rrd_value_t **);
232 int data_fetch( image_desc_t *);
233 long find_var(image_desc_t *, char *);
234 long find_var_wrapper(void *arg1, char *key);
235 long lcd(long *);
236 int data_calc( image_desc_t *);
237 int data_proc( image_desc_t *);
238 time_t find_first_time( time_t, enum tmt_en, long);
239 time_t find_next_time( time_t, enum tmt_en, long);
240 void gator( gdImagePtr, int, int);
241 int print_calc(image_desc_t *, char ***);
242 int leg_place(image_desc_t *);
243 int horizontal_grid(gdImagePtr, image_desc_t *);
244 int horizontal_log_grid(gdImagePtr, image_desc_t *);
245 void vertical_grid( gdImagePtr, image_desc_t *);
246 void axis_paint( image_desc_t *, gdImagePtr);
247 void grid_paint( image_desc_t *, gdImagePtr);
248 gdImagePtr MkLineBrush(image_desc_t *,long, enum gf_en);
249 int lazy_check(image_desc_t *);
250 int graph_paint(image_desc_t *, char ***);
251 int gdes_alloc(image_desc_t *);
252 int scan_for_col(char *, int, char *);
253 int rrd_graph(int, char **, char ***, int *, int *);
254 void rrd_graph_init(image_desc_t *);
255 void rrd_graph_options(int, char **, image_desc_t *);
256 void rrd_graph_script(int, char **, image_desc_t *);
257 int rrd_graph_check_vname(image_desc_t *, char *, char *);
258 int rrd_graph_check_CF(image_desc_t *, char *, char *);
259 int rrd_graph_color(image_desc_t *, char *, char *, int);
260 int rrd_graph_legend(graph_desc_t *, char *);
261 int bad_format(char *);
262 int vdef_parse(struct graph_desc_t *,char *);
263 int vdef_calc(image_desc_t *, int);
264 int vdef_percent_compar(const void *,const void *);