1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
#define _GNU_SOURCE
#include <stdio.h>
#undef _GNU_SOURCE
#include <stdlib.h>
#include <newt.h>
#include <sys/ttydefaults.h>
#include "cache.h"
#include "hist.h"
#include "session.h"
#include "sort.h"
#include "symbol.h"
static void newt_form__set_exit_keys(newtComponent self)
{
newtFormAddHotKey(self, NEWT_KEY_ESCAPE);
newtFormAddHotKey(self, 'Q');
newtFormAddHotKey(self, 'q');
newtFormAddHotKey(self, CTRL('c'));
}
static newtComponent newt_form__new(void)
{
newtComponent self = newtForm(NULL, NULL, 0);
if (self)
newt_form__set_exit_keys(self);
return self;
}
static size_t hist_entry__append_browser(struct hist_entry *self,
newtComponent listbox, u64 total)
{
char bf[1024];
size_t len;
FILE *fp;
if (symbol_conf.exclude_other && !self->parent)
return 0;
fp = fmemopen(bf, sizeof(bf), "w");
if (fp == NULL)
return 0;
len = hist_entry__fprintf(self, NULL, false, 0, fp, total);
fclose(fp);
newtListboxAppendEntry(listbox, bf, self);
return len;
}
static void hist_entry__annotate_browser(struct hist_entry *self)
{
FILE *fp;
int cols, rows;
newtComponent form, listbox;
struct newtExitStruct es;
char *str;
size_t line_len, max_line_len = 0;
size_t max_usable_width;
char *line = NULL;
if (self->sym == NULL)
return;
if (asprintf(&str, "perf annotate %s | expand", self->sym->name) < 0)
return;
fp = popen(str, "r");
if (fp == NULL)
goto out_free_str;
newtPushHelpLine("Press ESC to exit");
newtGetScreenSize(&cols, &rows);
listbox = newtListbox(0, 0, rows - 5, NEWT_FLAG_SCROLL);
while (!feof(fp)) {
if (getline(&line, &line_len, fp) < 0 || !line_len)
break;
while (line_len != 0 && isspace(line[line_len - 1]))
line[--line_len] = '\0';
if (line_len > max_line_len)
max_line_len = line_len;
newtListboxAppendEntry(listbox, line, NULL);
}
fclose(fp);
free(line);
max_usable_width = cols - 22;
if (max_line_len > max_usable_width)
max_line_len = max_usable_width;
newtListboxSetWidth(listbox, max_line_len);
newtCenteredWindow(max_line_len + 2, rows - 5, self->sym->name);
form = newt_form__new();
newtFormAddComponents(form, listbox, NULL);
newtFormRun(form, &es);
newtFormDestroy(form);
newtPopWindow();
newtPopHelpLine();
out_free_str:
free(str);
}
void perf_session__browse_hists(struct rb_root *hists, u64 session_total,
const char *helpline)
{
struct sort_entry *se;
struct rb_node *nd;
unsigned int width;
char *col_width = symbol_conf.col_width_list_str;
int rows;
size_t max_len = 0;
char str[1024];
newtComponent form, listbox;
struct newtExitStruct es;
snprintf(str, sizeof(str), "Samples: %Ld", session_total);
newtDrawRootText(0, 0, str);
newtPushHelpLine(helpline);
newtGetScreenSize(NULL, &rows);
form = newt_form__new();
listbox = newtListbox(1, 1, rows - 2, (NEWT_FLAG_SCROLL |
NEWT_FLAG_BORDER |
NEWT_FLAG_RETURNEXIT));
list_for_each_entry(se, &hist_entry__sort_list, list) {
if (se->elide)
continue;
width = strlen(se->header);
if (se->width) {
if (symbol_conf.col_width_list_str) {
if (col_width) {
*se->width = atoi(col_width);
col_width = strchr(col_width, ',');
if (col_width)
++col_width;
}
}
*se->width = max(*se->width, width);
}
}
for (nd = rb_first(hists); nd; nd = rb_next(nd)) {
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
size_t len = hist_entry__append_browser(h, listbox, session_total);
if (len > max_len)
max_len = len;
}
newtListboxSetWidth(listbox, max_len);
newtFormAddComponents(form, listbox, NULL);
while (1) {
struct hist_entry *selection;
newtFormRun(form, &es);
if (es.reason == NEWT_EXIT_HOTKEY)
break;
selection = newtListboxGetCurrent(listbox);
hist_entry__annotate_browser(selection);
}
newtFormDestroy(form);
}
int browser__show_help(const char *format, va_list ap)
{
int ret;
static int backlog;
static char msg[1024];
ret = vsnprintf(msg + backlog, sizeof(msg) - backlog, format, ap);
backlog += ret;
if (msg[backlog - 1] == '\n') {
newtPopHelpLine();
newtPushHelpLine(msg);
newtRefresh();
backlog = 0;
}
return ret;
}
void setup_browser(void)
{
if (!isatty(1))
return;
use_browser = true;
newtInit();
newtCls();
newtPushHelpLine(" ");
}
void exit_browser(void)
{
if (use_browser)
newtFinished();
}
|
