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      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->value);
     36 	free(values->pid);
     37 	free(values->tid);
     38 	free(values->counterrawid);
     39 	for (i = 0; i < values->counters; i++)
     40 		free(values->countername[i]);
     41 	free(values->countername);
     42 }
     43 
     44 static void perf_read_values__enlarge_threads(struct perf_read_values *values)
     45 {
     46 	values->threads_max *= 2;
     47 	values->pid = realloc(values->pid,
     48 			      values->threads_max * sizeof(*values->pid));
     49 	values->tid = realloc(values->tid,
     50 			      values->threads_max * sizeof(*values->tid));
     51 	values->value = realloc(values->value,
     52 				values->threads_max * sizeof(*values->value));
     53 	if (!values->pid || !values->tid || !values->value)
     54 		die("failed to enlarge read_values threads arrays");
     55 }
     56 
     57 static int perf_read_values__findnew_thread(struct perf_read_values *values,
     58 					    u32 pid, u32 tid)
     59 {
     60 	int i;
     61 
     62 	for (i = 0; i < values->threads; i++)
     63 		if (values->pid[i] == pid && values->tid[i] == tid)
     64 			return i;
     65 
     66 	if (values->threads == values->threads_max)
     67 		perf_read_values__enlarge_threads(values);
     68 
     69 	i = values->threads++;
     70 	values->pid[i] = pid;
     71 	values->tid[i] = tid;
     72 	values->value[i] = malloc(values->counters_max * sizeof(**values->value));
     73 	if (!values->value[i])
     74 		die("failed to allocate read_values counters array");
     75 
     76 	return i;
     77 }
     78 
     79 static void perf_read_values__enlarge_counters(struct perf_read_values *values)
     80 {
     81 	int i;
     82 
     83 	values->counters_max *= 2;
     84 	values->counterrawid = realloc(values->counterrawid,
     85 				       values->counters_max * sizeof(*values->counterrawid));
     86 	values->countername = realloc(values->countername,
     87 				      values->counters_max * sizeof(*values->countername));
     88 	if (!values->counterrawid || !values->countername)
     89 		die("failed to enlarge read_values counters arrays");
     90 
     91 	for (i = 0; i < values->threads; i++) {
     92 		values->value[i] = realloc(values->value[i],
     93 					   values->counters_max * sizeof(**values->value));
     94 		if (!values->value[i])
     95 			die("failed to enlarge read_values counters arrays");
     96 	}
     97 }
     98 
     99 static int perf_read_values__findnew_counter(struct perf_read_values *values,
    100 					     u64 rawid, const char *name)
    101 {
    102 	int i;
    103 
    104 	for (i = 0; i < values->counters; i++)
    105 		if (values->counterrawid[i] == rawid)
    106 			return i;
    107 
    108 	if (values->counters == values->counters_max)
    109 		perf_read_values__enlarge_counters(values);
    110 
    111 	i = values->counters++;
    112 	values->counterrawid[i] = rawid;
    113 	values->countername[i] = strdup(name);
    114 
    115 	return i;
    116 }
    117 
    118 void perf_read_values_add_value(struct perf_read_values *values,
    119 				u32 pid, u32 tid,
    120 				u64 rawid, const char *name, u64 value)
    121 {
    122 	int tindex, cindex;
    123 
    124 	tindex = perf_read_values__findnew_thread(values, pid, tid);
    125 	cindex = perf_read_values__findnew_counter(values, rawid, name);
    126 
    127 	values->value[tindex][cindex] = value;
    128 }
    129 
    130 static void perf_read_values__display_pretty(FILE *fp,
    131 					     struct perf_read_values *values)
    132 {
    133 	int i, j;
    134 	int pidwidth, tidwidth;
    135 	int *counterwidth;
    136 
    137 	counterwidth = malloc(values->counters * sizeof(*counterwidth));
    138 	if (!counterwidth)
    139 		die("failed to allocate counterwidth array");
    140 	tidwidth = 3;
    141 	pidwidth = 3;
    142 	for (j = 0; j < values->counters; j++)
    143 		counterwidth[j] = strlen(values->countername[j]);
    144 	for (i = 0; i < values->threads; i++) {
    145 		int width;
    146 
    147 		width = snprintf(NULL, 0, "%d", values->pid[i]);
    148 		if (width > pidwidth)
    149 			pidwidth = width;
    150 		width = snprintf(NULL, 0, "%d", values->tid[i]);
    151 		if (width > tidwidth)
    152 			tidwidth = width;
    153 		for (j = 0; j < values->counters; j++) {
    154 			width = snprintf(NULL, 0, "%" PRIu64, values->value[i][j]);
    155 			if (width > counterwidth[j])
    156 				counterwidth[j] = width;
    157 		}
    158 	}
    159 
    160 	fprintf(fp, "# %*s  %*s", pidwidth, "PID", tidwidth, "TID");
    161 	for (j = 0; j < values->counters; j++)
    162 		fprintf(fp, "  %*s", counterwidth[j], values->countername[j]);
    163 	fprintf(fp, "\n");
    164 
    165 	for (i = 0; i < values->threads; i++) {
    166 		fprintf(fp, "  %*d  %*d", pidwidth, values->pid[i],
    167 			tidwidth, values->tid[i]);
    168 		for (j = 0; j < values->counters; j++)
    169 			fprintf(fp, "  %*" PRIu64,
    170 				counterwidth[j], values->value[i][j]);
    171 		fprintf(fp, "\n");
    172 	}
    173 	free(counterwidth);
    174 }
    175 
    176 static void perf_read_values__display_raw(FILE *fp,
    177 					  struct perf_read_values *values)
    178 {
    179 	int width, pidwidth, tidwidth, namewidth, rawwidth, countwidth;
    180 	int i, j;
    181 
    182 	tidwidth = 3; /* TID */
    183 	pidwidth = 3; /* PID */
    184 	namewidth = 4; /* "Name" */
    185 	rawwidth = 3; /* "Raw" */
    186 	countwidth = 5; /* "Count" */
    187 
    188 	for (i = 0; i < values->threads; i++) {
    189 		width = snprintf(NULL, 0, "%d", values->pid[i]);
    190 		if (width > pidwidth)
    191 			pidwidth = width;
    192 		width = snprintf(NULL, 0, "%d", values->tid[i]);
    193 		if (width > tidwidth)
    194 			tidwidth = width;
    195 	}
    196 	for (j = 0; j < values->counters; j++) {
    197 		width = strlen(values->countername[j]);
    198 		if (width > namewidth)
    199 			namewidth = width;
    200 		width = snprintf(NULL, 0, "%" PRIx64, values->counterrawid[j]);
    201 		if (width > rawwidth)
    202 			rawwidth = width;
    203 	}
    204 	for (i = 0; i < values->threads; i++) {
    205 		for (j = 0; j < values->counters; j++) {
    206 			width = snprintf(NULL, 0, "%" PRIu64, values->value[i][j]);
    207 			if (width > countwidth)
    208 				countwidth = width;
    209 		}
    210 	}
    211 
    212 	fprintf(fp, "# %*s  %*s  %*s  %*s  %*s\n",
    213 		pidwidth, "PID", tidwidth, "TID",
    214 		namewidth, "Name", rawwidth, "Raw",
    215 		countwidth, "Count");
    216 	for (i = 0; i < values->threads; i++)
    217 		for (j = 0; j < values->counters; j++)
    218 			fprintf(fp, "  %*d  %*d  %*s  %*" PRIx64 "  %*" PRIu64,
    219 				pidwidth, values->pid[i],
    220 				tidwidth, values->tid[i],
    221 				namewidth, values->countername[j],
    222 				rawwidth, values->counterrawid[j],
    223 				countwidth, values->value[i][j]);
    224 }
    225 
    226 void perf_read_values_display(FILE *fp, struct perf_read_values *values, int raw)
    227 {
    228 	if (raw)
    229 		perf_read_values__display_raw(fp, values);
    230 	else
    231 		perf_read_values__display_pretty(fp, values);
    232 }
    233