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467066ee BP |
1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2009 Benjamin Poirier <benjamin.poirier@polymtl.ca> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License Version 2 as | |
6 | * published by the Free Software Foundation; | |
7 | * | |
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. | |
12 | * | |
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, | |
16 | * MA 02111-1307, USA. | |
17 | */ | |
18 | ||
19 | #ifdef HAVE_CONFIG_H | |
20 | #include <config.h> | |
21 | #endif | |
22 | ||
23 | #include <errno.h> | |
1d597550 BP |
24 | #include <fcntl.h> |
25 | #include <stdlib.h> | |
2f076594 | 26 | #include <string.h> |
1d597550 | 27 | #include <sys/stat.h> |
467066ee BP |
28 | #include <sys/types.h> |
29 | #include <unistd.h> | |
30 | ||
31 | #include "sync_chain.h" | |
32 | #include "graph_functions.h" | |
33 | ||
34 | ||
1d597550 BP |
35 | /* |
36 | * Create the directory used to hold graphs and the header of the gnuplot | |
37 | * script. | |
38 | * | |
39 | * Args: | |
40 | * graphsDir: name of directory | |
41 | * | |
42 | * Returns: | |
43 | * The current working directory before the execution of the function. The | |
44 | * string must be free'd by the caller. | |
45 | */ | |
46 | FILE* createGraphsDir(const char* const graphsDir) | |
47 | { | |
48 | char* cwd; | |
49 | int graphsFp; | |
50 | FILE* result; | |
51 | int retval; | |
52 | ||
53 | cwd= changeToGraphsDir(graphsDir); | |
54 | ||
55 | if ((graphsFp= open("graphs.gnu", O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | | |
56 | S_IWUSR | S_IXUSR | S_IRGRP | S_IWGRP | S_IXGRP | S_IROTH | |
57 | | S_IWOTH | S_IXOTH)) == -1) | |
58 | { | |
59 | g_error(strerror(errno)); | |
60 | } | |
61 | if ((result= fdopen(graphsFp, "w")) == NULL) | |
62 | { | |
63 | g_error(strerror(errno)); | |
64 | } | |
65 | ||
66 | fprintf(result, | |
67 | "#!/usr/bin/gnuplot\n\n" | |
68 | "set terminal postscript eps color size 8in,6in\n"); | |
69 | ||
70 | retval= chdir(cwd); | |
71 | if (retval == -1) | |
72 | { | |
73 | g_error(strerror(errno)); | |
74 | } | |
75 | free(cwd); | |
76 | ||
77 | return result; | |
78 | } | |
79 | ||
80 | ||
81 | /* | |
82 | * Change to the directory used to hold graphs. Create it if necessary. | |
83 | * | |
84 | * Args: | |
85 | * graphsDir: name of directory | |
86 | * | |
87 | * Returns: | |
88 | * The current working directory before the execution of the function. The | |
89 | * string must be free'd by the caller. | |
90 | */ | |
91 | char* changeToGraphsDir(const char* const graphsDir) | |
92 | { | |
93 | int retval; | |
94 | char* cwd; | |
95 | ||
96 | cwd= getcwd(NULL, 0); | |
97 | if (cwd == NULL) | |
98 | { | |
99 | g_error(strerror(errno)); | |
100 | } | |
101 | while ((retval= chdir(graphsDir)) != 0) | |
102 | { | |
103 | if (errno == ENOENT) | |
104 | { | |
105 | retval= mkdir(graphsDir, S_IRUSR | S_IWUSR | S_IXUSR | S_IRGRP | | |
106 | S_IWGRP | S_IXGRP | S_IROTH | S_IWOTH | S_IXOTH); | |
107 | if (retval != 0) | |
108 | { | |
109 | g_error(strerror(errno)); | |
110 | } | |
111 | } | |
112 | else | |
113 | { | |
114 | g_error(strerror(errno)); | |
115 | } | |
116 | } | |
117 | ||
118 | return cwd; | |
119 | } | |
120 | ||
121 | ||
122 | /* | |
123 | * Call each graph variable, option and plot line function of each module to | |
124 | * produce a gnuplot script. | |
125 | * | |
126 | * Args: | |
127 | * syncState: container for synchronization data | |
128 | */ | |
467066ee BP |
129 | void writeGraphsScript(SyncState* const syncState) |
130 | { | |
c6356aa7 | 131 | unsigned int i, j, k, l, m; |
66eaf2eb BP |
132 | long pos1, pos2; |
133 | const GraphFunctions* moduleGraphFunctions[]= { | |
134 | &syncState->processingModule->graphFunctions, | |
135 | &syncState->matchingModule->graphFunctions, | |
136 | &syncState->analysisModule->graphFunctions, | |
137 | }; | |
467066ee | 138 | const struct { |
467066ee | 139 | char* name; |
c6356aa7 BP |
140 | size_t plotsOffsets[2]; |
141 | size_t optionsOffset; | |
142 | } graphTypes[]= { | |
143 | { | |
144 | "TraceTrace", | |
145 | { | |
146 | offsetof(GraphFunctions, writeTraceTraceBackPlots), | |
147 | offsetof(GraphFunctions, writeTraceTraceForePlots), | |
148 | }, | |
149 | offsetof(GraphFunctions, writeTraceTraceOptions), | |
150 | }, | |
151 | { | |
152 | "TraceTime", | |
153 | { | |
154 | offsetof(GraphFunctions, writeTraceTimeBackPlots), | |
155 | offsetof(GraphFunctions, writeTraceTimeForePlots), | |
156 | }, | |
157 | offsetof(GraphFunctions, writeTraceTimeOptions), | |
158 | }, | |
467066ee BP |
159 | }; |
160 | ||
66eaf2eb | 161 | fprintf(syncState->graphsStream, "\n"); |
c6356aa7 BP |
162 | |
163 | // Write variables | |
66eaf2eb BP |
164 | pos1= ftell(syncState->graphsStream); |
165 | for (i= 0; i < syncState->traceNb; i++) | |
166 | { | |
167 | for (k= 0; k < sizeof(moduleGraphFunctions) / | |
168 | sizeof(*moduleGraphFunctions); k++) | |
169 | { | |
170 | GraphVariableFunction** writeVariables= (void*) | |
171 | moduleGraphFunctions[k] + offsetof(GraphFunctions, | |
172 | writeVariables); | |
173 | ||
174 | if (*writeVariables) | |
175 | { | |
176 | (*writeVariables)(syncState, i); | |
177 | } | |
178 | } | |
179 | } | |
180 | fflush(syncState->graphsStream); | |
181 | pos2= ftell(syncState->graphsStream); | |
182 | if (pos1 != pos2) | |
183 | { | |
184 | fprintf(syncState->graphsStream, "\n"); | |
185 | } | |
186 | ||
c6356aa7 BP |
187 | // Write plots and options |
188 | for (l= 0; l < sizeof(graphTypes) / sizeof(*graphTypes); l++) | |
467066ee BP |
189 | { |
190 | // Cover the upper triangular matrix, i is the reference node. | |
191 | for (i= 0; i < syncState->traceNb; i++) | |
192 | { | |
193 | for (j= i + 1; j < syncState->traceNb; j++) | |
194 | { | |
66eaf2eb | 195 | long trunc; |
467066ee BP |
196 | |
197 | fprintf(syncState->graphsStream, | |
198 | "reset\n" | |
199 | "set output \"%03d-%03d-%s.eps\"\n" | |
c6356aa7 | 200 | "plot \\\n", i, j, graphTypes[l].name); |
467066ee BP |
201 | |
202 | pos1= ftell(syncState->graphsStream); | |
203 | ||
c6356aa7 BP |
204 | for (m= 0; m < sizeof(graphTypes[l].plotsOffsets) / |
205 | sizeof(*graphTypes[l].plotsOffsets); m++) | |
467066ee | 206 | { |
c6356aa7 BP |
207 | for (k= 0; k < sizeof(moduleGraphFunctions) / |
208 | sizeof(*moduleGraphFunctions); k++) | |
467066ee | 209 | { |
c6356aa7 BP |
210 | GraphFunction** writePlots= (void*) |
211 | moduleGraphFunctions[k] + | |
212 | graphTypes[l].plotsOffsets[m]; | |
213 | ||
214 | if (*writePlots) | |
215 | { | |
216 | (*writePlots)(syncState, i, j); | |
217 | } | |
467066ee BP |
218 | } |
219 | } | |
220 | ||
221 | fflush(syncState->graphsStream); | |
222 | pos2= ftell(syncState->graphsStream); | |
223 | if (pos1 != pos2) | |
224 | { | |
225 | // Remove the ", \\\n" from the last graph plot line | |
226 | trunc= pos2 - 4; | |
227 | } | |
228 | else | |
229 | { | |
230 | // Remove the "plot \\\n" line to avoid creating an invalid | |
231 | // gnuplot script | |
232 | trunc= pos2 - 7; | |
233 | } | |
234 | ||
235 | if (ftruncate(fileno(syncState->graphsStream), trunc) == -1) | |
236 | { | |
237 | g_error(strerror(errno)); | |
238 | } | |
239 | if (fseek(syncState->graphsStream, 0, SEEK_END) == -1) | |
240 | { | |
241 | g_error(strerror(errno)); | |
242 | } | |
243 | ||
244 | fprintf(syncState->graphsStream, | |
245 | "\nset output \"%03d-%03d-%s.eps\"\n" | |
c6356aa7 | 246 | "set title \"\"\n", i, j, graphTypes[l].name); |
467066ee BP |
247 | |
248 | for (k= 0; k < sizeof(moduleGraphFunctions) / | |
249 | sizeof(*moduleGraphFunctions); k++) | |
250 | { | |
251 | GraphFunction** writeOptions= (void*) | |
c6356aa7 | 252 | moduleGraphFunctions[k] + graphTypes[l].optionsOffset; |
467066ee BP |
253 | |
254 | if (*writeOptions) | |
255 | { | |
256 | (*writeOptions)(syncState, i, j); | |
257 | } | |
258 | } | |
259 | ||
260 | if (pos1 != pos2) | |
261 | { | |
262 | fprintf(syncState->graphsStream, "replot\n\n"); | |
263 | } | |
264 | else | |
265 | { | |
266 | fprintf(syncState->graphsStream, "\n"); | |
267 | } | |
268 | } | |
269 | } | |
270 | } | |
271 | } |