2 * Copyright (C) 2012 Fusion-io
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public
6 * License v2 as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 #ifndef __IOWATCH_PLOT__
19 #define __IOWATCH_PLOT__
29 /* svg style y = 0 is the top of the graph */
32 /* abs coords of the start of X start of the plot */
38 * these two are for anyone that wants
39 * to add a plot after this one, it tells
40 * them how much space we took up
49 struct graph_line_pair {
54 struct graph_line_data {
55 /* total number of seconds in this graph */
63 /* label for this graph */
65 struct graph_line_pair data[];
68 struct graph_dot_data {
72 /* in pixels, number of rows in our bitmap */
74 /* in pixels, number of cols in our bitmap */
77 /* total number of seconds in this graph */
81 /* label for the legend */
84 /* bitmap, one bit for each cell to light up */
88 int svg_io_graph(struct plot *plot, struct graph_dot_data *gdd, char *color);
89 int svg_line_graph(struct plot *plot, struct graph_line_data *gld, char *color);
90 struct graph_line_data *alloc_line_data(int seconds, int stop_seconds);
91 void free_line_data(struct graph_line_data *gld);
92 struct graph_dot_data *alloc_dot_data(int seconds, u64 max_offset, int stop_seconds);
93 void free_dot_data(struct graph_dot_data *gdd);
94 void set_gdd_bit(struct graph_dot_data *gdd, u64 offset, int bytes, double time);
95 void print_gdd(struct graph_dot_data *gdd);
96 void write_svg_header(int fd);
97 struct plot *alloc_plot(int fd);
98 int close_plot(struct plot *plot);
99 void setup_axis(struct plot *plot);
100 void set_xticks(struct plot *plot, int num_ticks, int first, int last);
101 void set_yticks(struct plot *plot, int num_ticks, int first, int last, char *units);
102 void set_plot_title(struct plot *plot, char *title);
103 void set_plot_label(struct plot *plot, char *label);
104 void set_xlabel(struct plot *plot, char *label);
105 void set_ylabel(struct plot *plot, char *label);
106 void scale_line_graph_bytes(u64 *max, char **units, u64 factor);
107 void scale_line_graph_time(u64 *max, char **units);
108 void write_drop_shadow(struct plot *plot);
109 void write_drop_shadow_line(struct plot *plot);
110 void svg_write_legend(struct plot *plot);
111 void svg_add_legend(struct plot *plot, char *text, char *extra, char *color);
112 void svg_alloc_legend(struct plot *plot, int num_lines);
113 void set_legend_width(int longest_str);
114 void set_rolling_avg(int rolling);