perf: Fix memory leak: counterwidth
[linux-2.6.git] / tools / perf / util / values.c
1 #include <stdlib.h>
2
3 #include "util.h"
4 #include "values.h"
5
6 void perf_read_values_init(struct perf_read_values *values)
7 {
8         values->threads_max = 16;
9         values->pid = malloc(values->threads_max * sizeof(*values->pid));
10         values->tid = malloc(values->threads_max * sizeof(*values->tid));
11         values->value = malloc(values->threads_max * sizeof(*values->value));
12         if (!values->pid || !values->tid || !values->value)
13                 die("failed to allocate read_values threads arrays");
14         values->threads = 0;
15
16         values->counters_max = 16;
17         values->counterrawid = malloc(values->counters_max
18                                       * sizeof(*values->counterrawid));
19         values->countername = malloc(values->counters_max
20                                      * sizeof(*values->countername));
21         if (!values->counterrawid || !values->countername)
22                 die("failed to allocate read_values counters arrays");
23         values->counters = 0;
24 }
25
26 void perf_read_values_destroy(struct perf_read_values *values)
27 {
28         int i;
29
30         if (!values->threads_max || !values->counters_max)
31                 return;
32
33         for (i = 0; i < values->threads; i++)
34                 free(values->value[i]);
35         free(values->pid);
36         free(values->tid);
37         free(values->counterrawid);
38         for (i = 0; i < values->counters; i++)
39                 free(values->countername[i]);
40         free(values->countername);
41 }
42
43 static void perf_read_values__enlarge_threads(struct perf_read_values *values)
44 {
45         values->threads_max *= 2;
46         values->pid = realloc(values->pid,
47                               values->threads_max * sizeof(*values->pid));
48         values->tid = realloc(values->tid,
49                               values->threads_max * sizeof(*values->tid));
50         values->value = realloc(values->value,
51                                 values->threads_max * sizeof(*values->value));
52         if (!values->pid || !values->tid || !values->value)
53                 die("failed to enlarge read_values threads arrays");
54 }
55
56 static int perf_read_values__findnew_thread(struct perf_read_values *values,
57                                             u32 pid, u32 tid)
58 {
59         int i;
60
61         for (i = 0; i < values->threads; i++)
62                 if (values->pid[i] == pid && values->tid[i] == tid)
63                         return i;
64
65         if (values->threads == values->threads_max)
66                 perf_read_values__enlarge_threads(values);
67
68         i = values->threads++;
69         values->pid[i] = pid;
70         values->tid[i] = tid;
71         values->value[i] = malloc(values->counters_max * sizeof(**values->value));
72         if (!values->value[i])
73                 die("failed to allocate read_values counters array");
74
75         return i;
76 }
77
78 static void perf_read_values__enlarge_counters(struct perf_read_values *values)
79 {
80         int i;
81
82         values->counters_max *= 2;
83         values->counterrawid = realloc(values->counterrawid,
84                                        values->counters_max * sizeof(*values->counterrawid));
85         values->countername = realloc(values->countername,
86                                       values->counters_max * sizeof(*values->countername));
87         if (!values->counterrawid || !values->countername)
88                 die("failed to enlarge read_values counters arrays");
89
90         for (i = 0; i < values->threads; i++) {
91                 values->value[i] = realloc(values->value[i],
92                                            values->counters_max * sizeof(**values->value));
93                 if (!values->value[i])
94                         die("failed to enlarge read_values counters arrays");
95         }
96 }
97
98 static int perf_read_values__findnew_counter(struct perf_read_values *values,
99                                              u64 rawid, const char *name)
100 {
101         int i;
102
103         for (i = 0; i < values->counters; i++)
104                 if (values->counterrawid[i] == rawid)
105                         return i;
106
107         if (values->counters == values->counters_max)
108                 perf_read_values__enlarge_counters(values);
109
110         i = values->counters++;
111         values->counterrawid[i] = rawid;
112         values->countername[i] = strdup(name);
113
114         return i;
115 }
116
117 void perf_read_values_add_value(struct perf_read_values *values,
118                                 u32 pid, u32 tid,
119                                 u64 rawid, const char *name, u64 value)
120 {
121         int tindex, cindex;
122
123         tindex = perf_read_values__findnew_thread(values, pid, tid);
124         cindex = perf_read_values__findnew_counter(values, rawid, name);
125
126         values->value[tindex][cindex] = value;
127 }
128
129 static void perf_read_values__display_pretty(FILE *fp,
130                                              struct perf_read_values *values)
131 {
132         int i, j;
133         int pidwidth, tidwidth;
134         int *counterwidth;
135
136         counterwidth = malloc(values->counters * sizeof(*counterwidth));
137         if (!counterwidth)
138                 die("failed to allocate counterwidth array");
139         tidwidth = 3;
140         pidwidth = 3;
141         for (j = 0; j < values->counters; j++)
142                 counterwidth[j] = strlen(values->countername[j]);
143         for (i = 0; i < values->threads; i++) {
144                 int width;
145
146                 width = snprintf(NULL, 0, "%d", values->pid[i]);
147                 if (width > pidwidth)
148                         pidwidth = width;
149                 width = snprintf(NULL, 0, "%d", values->tid[i]);
150                 if (width > tidwidth)
151                         tidwidth = width;
152                 for (j = 0; j < values->counters; j++) {
153                         width = snprintf(NULL, 0, "%Lu", values->value[i][j]);
154                         if (width > counterwidth[j])
155                                 counterwidth[j] = width;
156                 }
157         }
158
159         fprintf(fp, "# %*s  %*s", pidwidth, "PID", tidwidth, "TID");
160         for (j = 0; j < values->counters; j++)
161                 fprintf(fp, "  %*s", counterwidth[j], values->countername[j]);
162         fprintf(fp, "\n");
163
164         for (i = 0; i < values->threads; i++) {
165                 fprintf(fp, "  %*d  %*d", pidwidth, values->pid[i],
166                         tidwidth, values->tid[i]);
167                 for (j = 0; j < values->counters; j++)
168                         fprintf(fp, "  %*Lu",
169                                 counterwidth[j], values->value[i][j]);
170                 fprintf(fp, "\n");
171         }
172         free(counterwidth);
173 }
174
175 static void perf_read_values__display_raw(FILE *fp,
176                                           struct perf_read_values *values)
177 {
178         int width, pidwidth, tidwidth, namewidth, rawwidth, countwidth;
179         int i, j;
180
181         tidwidth = 3; /* TID */
182         pidwidth = 3; /* PID */
183         namewidth = 4; /* "Name" */
184         rawwidth = 3; /* "Raw" */
185         countwidth = 5; /* "Count" */
186
187         for (i = 0; i < values->threads; i++) {
188                 width = snprintf(NULL, 0, "%d", values->pid[i]);
189                 if (width > pidwidth)
190                         pidwidth = width;
191                 width = snprintf(NULL, 0, "%d", values->tid[i]);
192                 if (width > tidwidth)
193                         tidwidth = width;
194         }
195         for (j = 0; j < values->counters; j++) {
196                 width = strlen(values->countername[j]);
197                 if (width > namewidth)
198                         namewidth = width;
199                 width = snprintf(NULL, 0, "%llx", values->counterrawid[j]);
200                 if (width > rawwidth)
201                         rawwidth = width;
202         }
203         for (i = 0; i < values->threads; i++) {
204                 for (j = 0; j < values->counters; j++) {
205                         width = snprintf(NULL, 0, "%Lu", values->value[i][j]);
206                         if (width > countwidth)
207                                 countwidth = width;
208                 }
209         }
210
211         fprintf(fp, "# %*s  %*s  %*s  %*s  %*s\n",
212                 pidwidth, "PID", tidwidth, "TID",
213                 namewidth, "Name", rawwidth, "Raw",
214                 countwidth, "Count");
215         for (i = 0; i < values->threads; i++)
216                 for (j = 0; j < values->counters; j++)
217                         fprintf(fp, "  %*d  %*d  %*s  %*llx  %*Lu\n",
218                                 pidwidth, values->pid[i],
219                                 tidwidth, values->tid[i],
220                                 namewidth, values->countername[j],
221                                 rawwidth, values->counterrawid[j],
222                                 countwidth, values->value[i][j]);
223 }
224
225 void perf_read_values_display(FILE *fp, struct perf_read_values *values, int raw)
226 {
227         if (raw)
228                 perf_read_values__display_raw(fp, values);
229         else
230                 perf_read_values__display_pretty(fp, values);
231 }