1
2#include <inttypes.h>
3#include <stdio.h>
4#include <stdlib.h>
5#include <errno.h>
6#include <linux/zalloc.h>
7
8#include "values.h"
9#include "debug.h"
10
11int perf_read_values_init(struct perf_read_values *values)
12{
13 values->threads_max = 16;
14 values->pid = malloc(values->threads_max * sizeof(*values->pid));
15 values->tid = malloc(values->threads_max * sizeof(*values->tid));
16 values->value = zalloc(values->threads_max * sizeof(*values->value));
17 if (!values->pid || !values->tid || !values->value) {
18 pr_debug("failed to allocate read_values threads arrays");
19 goto out_free_pid;
20 }
21 values->threads = 0;
22
23 values->counters_max = 16;
24 values->counterrawid = malloc(values->counters_max
25 * sizeof(*values->counterrawid));
26 values->countername = malloc(values->counters_max
27 * sizeof(*values->countername));
28 if (!values->counterrawid || !values->countername) {
29 pr_debug("failed to allocate read_values counters arrays");
30 goto out_free_counter;
31 }
32 values->counters = 0;
33
34 return 0;
35
36out_free_counter:
37 zfree(&values->counterrawid);
38 zfree(&values->countername);
39out_free_pid:
40 zfree(&values->pid);
41 zfree(&values->tid);
42 zfree(&values->value);
43 return -ENOMEM;
44}
45
46void perf_read_values_destroy(struct perf_read_values *values)
47{
48 int i;
49
50 if (!values->threads_max || !values->counters_max)
51 return;
52
53 for (i = 0; i < values->threads; i++)
54 zfree(&values->value[i]);
55 zfree(&values->value);
56 zfree(&values->pid);
57 zfree(&values->tid);
58 zfree(&values->counterrawid);
59 for (i = 0; i < values->counters; i++)
60 zfree(&values->countername[i]);
61 zfree(&values->countername);
62}
63
64static int perf_read_values__enlarge_threads(struct perf_read_values *values)
65{
66 int nthreads_max = values->threads_max * 2;
67 void *npid = realloc(values->pid, nthreads_max * sizeof(*values->pid)),
68 *ntid = realloc(values->tid, nthreads_max * sizeof(*values->tid)),
69 *nvalue = realloc(values->value, nthreads_max * sizeof(*values->value));
70
71 if (!npid || !ntid || !nvalue)
72 goto out_err;
73
74 values->threads_max = nthreads_max;
75 values->pid = npid;
76 values->tid = ntid;
77 values->value = nvalue;
78 return 0;
79out_err:
80 free(npid);
81 free(ntid);
82 free(nvalue);
83 pr_debug("failed to enlarge read_values threads arrays");
84 return -ENOMEM;
85}
86
87static int perf_read_values__findnew_thread(struct perf_read_values *values,
88 u32 pid, u32 tid)
89{
90 int i;
91
92 for (i = 0; i < values->threads; i++)
93 if (values->pid[i] == pid && values->tid[i] == tid)
94 return i;
95
96 if (values->threads == values->threads_max) {
97 i = perf_read_values__enlarge_threads(values);
98 if (i < 0)
99 return i;
100 }
101
102 i = values->threads;
103
104 values->value[i] = zalloc(values->counters_max * sizeof(**values->value));
105 if (!values->value[i]) {
106 pr_debug("failed to allocate read_values counters array");
107 return -ENOMEM;
108 }
109 values->pid[i] = pid;
110 values->tid[i] = tid;
111 values->threads = i + 1;
112
113 return i;
114}
115
116static int perf_read_values__enlarge_counters(struct perf_read_values *values)
117{
118 char **countername;
119 int i, counters_max = values->counters_max * 2;
120 u64 *counterrawid = realloc(values->counterrawid, counters_max * sizeof(*values->counterrawid));
121
122 if (!counterrawid) {
123 pr_debug("failed to enlarge read_values rawid array");
124 goto out_enomem;
125 }
126
127 countername = realloc(values->countername, counters_max * sizeof(*values->countername));
128 if (!countername) {
129 pr_debug("failed to enlarge read_values rawid array");
130 goto out_free_rawid;
131 }
132
133 for (i = 0; i < values->threads; i++) {
134 u64 *value = realloc(values->value[i], counters_max * sizeof(**values->value));
135 int j;
136
137 if (!value) {
138 pr_debug("failed to enlarge read_values ->values array");
139 goto out_free_name;
140 }
141
142 for (j = values->counters_max; j < counters_max; j++)
143 value[j] = 0;
144
145 values->value[i] = value;
146 }
147
148 values->counters_max = counters_max;
149 values->counterrawid = counterrawid;
150 values->countername = countername;
151
152 return 0;
153out_free_name:
154 free(countername);
155out_free_rawid:
156 free(counterrawid);
157out_enomem:
158 return -ENOMEM;
159}
160
161static int perf_read_values__findnew_counter(struct perf_read_values *values,
162 u64 rawid, const char *name)
163{
164 int i;
165
166 for (i = 0; i < values->counters; i++)
167 if (values->counterrawid[i] == rawid)
168 return i;
169
170 if (values->counters == values->counters_max) {
171 i = perf_read_values__enlarge_counters(values);
172 if (i)
173 return i;
174 }
175
176 i = values->counters++;
177 values->counterrawid[i] = rawid;
178 values->countername[i] = strdup(name);
179
180 return i;
181}
182
183int perf_read_values_add_value(struct perf_read_values *values,
184 u32 pid, u32 tid,
185 u64 rawid, const char *name, u64 value)
186{
187 int tindex, cindex;
188
189 tindex = perf_read_values__findnew_thread(values, pid, tid);
190 if (tindex < 0)
191 return tindex;
192 cindex = perf_read_values__findnew_counter(values, rawid, name);
193 if (cindex < 0)
194 return cindex;
195
196 values->value[tindex][cindex] += value;
197 return 0;
198}
199
200static void perf_read_values__display_pretty(FILE *fp,
201 struct perf_read_values *values)
202{
203 int i, j;
204 int pidwidth, tidwidth;
205 int *counterwidth;
206
207 counterwidth = malloc(values->counters * sizeof(*counterwidth));
208 if (!counterwidth) {
209 fprintf(fp, "INTERNAL ERROR: Failed to allocate counterwidth array\n");
210 return;
211 }
212 tidwidth = 3;
213 pidwidth = 3;
214 for (j = 0; j < values->counters; j++)
215 counterwidth[j] = strlen(values->countername[j]);
216 for (i = 0; i < values->threads; i++) {
217 int width;
218
219 width = snprintf(NULL, 0, "%d", values->pid[i]);
220 if (width > pidwidth)
221 pidwidth = width;
222 width = snprintf(NULL, 0, "%d", values->tid[i]);
223 if (width > tidwidth)
224 tidwidth = width;
225 for (j = 0; j < values->counters; j++) {
226 width = snprintf(NULL, 0, "%" PRIu64, values->value[i][j]);
227 if (width > counterwidth[j])
228 counterwidth[j] = width;
229 }
230 }
231
232 fprintf(fp, "# %*s %*s", pidwidth, "PID", tidwidth, "TID");
233 for (j = 0; j < values->counters; j++)
234 fprintf(fp, " %*s", counterwidth[j], values->countername[j]);
235 fprintf(fp, "\n");
236
237 for (i = 0; i < values->threads; i++) {
238 fprintf(fp, " %*d %*d", pidwidth, values->pid[i],
239 tidwidth, values->tid[i]);
240 for (j = 0; j < values->counters; j++)
241 fprintf(fp, " %*" PRIu64,
242 counterwidth[j], values->value[i][j]);
243 fprintf(fp, "\n");
244 }
245 free(counterwidth);
246}
247
248static void perf_read_values__display_raw(FILE *fp,
249 struct perf_read_values *values)
250{
251 int width, pidwidth, tidwidth, namewidth, rawwidth, countwidth;
252 int i, j;
253
254 tidwidth = 3;
255 pidwidth = 3;
256 namewidth = 4;
257 rawwidth = 3;
258 countwidth = 5;
259
260 for (i = 0; i < values->threads; i++) {
261 width = snprintf(NULL, 0, "%d", values->pid[i]);
262 if (width > pidwidth)
263 pidwidth = width;
264 width = snprintf(NULL, 0, "%d", values->tid[i]);
265 if (width > tidwidth)
266 tidwidth = width;
267 }
268 for (j = 0; j < values->counters; j++) {
269 width = strlen(values->countername[j]);
270 if (width > namewidth)
271 namewidth = width;
272 width = snprintf(NULL, 0, "%" PRIx64, values->counterrawid[j]);
273 if (width > rawwidth)
274 rawwidth = width;
275 }
276 for (i = 0; i < values->threads; i++) {
277 for (j = 0; j < values->counters; j++) {
278 width = snprintf(NULL, 0, "%" PRIu64, values->value[i][j]);
279 if (width > countwidth)
280 countwidth = width;
281 }
282 }
283
284 fprintf(fp, "# %*s %*s %*s %*s %*s\n",
285 pidwidth, "PID", tidwidth, "TID",
286 namewidth, "Name", rawwidth, "Raw",
287 countwidth, "Count");
288 for (i = 0; i < values->threads; i++)
289 for (j = 0; j < values->counters; j++)
290 fprintf(fp, " %*d %*d %*s %*" PRIx64 " %*" PRIu64,
291 pidwidth, values->pid[i],
292 tidwidth, values->tid[i],
293 namewidth, values->countername[j],
294 rawwidth, values->counterrawid[j],
295 countwidth, values->value[i][j]);
296}
297
298void perf_read_values_display(FILE *fp, struct perf_read_values *values, int raw)
299{
300 if (raw)
301 perf_read_values__display_raw(fp, values);
302 else
303 perf_read_values__display_pretty(fp, values);
304}
305
