Commit | Line | Data |
---|---|---|
e7f01d1e | 1 | #include <linux/kernel.h> |
8fc0321f IM |
2 | #include "cache.h" |
3 | #include "color.h" | |
f77c6e9c | 4 | #include <math.h> |
8fc0321f | 5 | |
13d0ab5e | 6 | int perf_use_color_default = -1; |
8fc0321f | 7 | |
8fc0321f IM |
8 | int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty) |
9 | { | |
10 | if (value) { | |
11 | if (!strcasecmp(value, "never")) | |
12 | return 0; | |
13 | if (!strcasecmp(value, "always")) | |
14 | return 1; | |
15 | if (!strcasecmp(value, "auto")) | |
16 | goto auto_color; | |
17 | } | |
18 | ||
19 | /* Missing or explicit false to turn off colorization */ | |
20 | if (!perf_config_bool(var, value)) | |
21 | return 0; | |
22 | ||
23 | /* any normal truth value defaults to 'auto' */ | |
24 | auto_color: | |
25 | if (stdout_is_tty < 0) | |
26 | stdout_is_tty = isatty(1); | |
de7cf7ca | 27 | if (stdout_is_tty || pager_in_use()) { |
8fc0321f IM |
28 | char *term = getenv("TERM"); |
29 | if (term && strcmp(term, "dumb")) | |
30 | return 1; | |
31 | } | |
32 | return 0; | |
33 | } | |
34 | ||
b8cbb349 WN |
35 | int perf_color_default_config(const char *var, const char *value, |
36 | void *cb __maybe_unused) | |
8fc0321f IM |
37 | { |
38 | if (!strcmp(var, "color.ui")) { | |
39 | perf_use_color_default = perf_config_colorbool(var, value, -1); | |
40 | return 0; | |
41 | } | |
42 | ||
b8cbb349 | 43 | return 0; |
8fc0321f IM |
44 | } |
45 | ||
a4e3b956 ACM |
46 | static int __color_vsnprintf(char *bf, size_t size, const char *color, |
47 | const char *fmt, va_list args, const char *trail) | |
48 | { | |
49 | int r = 0; | |
50 | ||
51 | /* | |
52 | * Auto-detect: | |
53 | */ | |
54 | if (perf_use_color_default < 0) { | |
55 | if (isatty(1) || pager_in_use()) | |
56 | perf_use_color_default = 1; | |
57 | else | |
58 | perf_use_color_default = 0; | |
59 | } | |
60 | ||
61 | if (perf_use_color_default && *color) | |
e7f01d1e ACM |
62 | r += scnprintf(bf, size, "%s", color); |
63 | r += vscnprintf(bf + r, size - r, fmt, args); | |
a4e3b956 | 64 | if (perf_use_color_default && *color) |
e7f01d1e | 65 | r += scnprintf(bf + r, size - r, "%s", PERF_COLOR_RESET); |
a4e3b956 | 66 | if (trail) |
e7f01d1e | 67 | r += scnprintf(bf + r, size - r, "%s", trail); |
a4e3b956 ACM |
68 | return r; |
69 | } | |
70 | ||
b7a001d2 | 71 | /* Colors are not included in return value */ |
8f28827a | 72 | static int __color_vfprintf(FILE *fp, const char *color, const char *fmt, |
8011de7a | 73 | va_list args) |
8fc0321f IM |
74 | { |
75 | int r = 0; | |
76 | ||
13d0ab5e IM |
77 | /* |
78 | * Auto-detect: | |
79 | */ | |
80 | if (perf_use_color_default < 0) { | |
4aa9015f | 81 | if (isatty(fileno(fp)) || pager_in_use()) |
13d0ab5e IM |
82 | perf_use_color_default = 1; |
83 | else | |
84 | perf_use_color_default = 0; | |
85 | } | |
86 | ||
87 | if (perf_use_color_default && *color) | |
b7a001d2 | 88 | fprintf(fp, "%s", color); |
8fc0321f | 89 | r += vfprintf(fp, fmt, args); |
13d0ab5e | 90 | if (perf_use_color_default && *color) |
b7a001d2 | 91 | fprintf(fp, "%s", PERF_COLOR_RESET); |
8fc0321f IM |
92 | return r; |
93 | } | |
94 | ||
a4e3b956 ACM |
95 | int color_vsnprintf(char *bf, size_t size, const char *color, |
96 | const char *fmt, va_list args) | |
97 | { | |
98 | return __color_vsnprintf(bf, size, color, fmt, args, NULL); | |
99 | } | |
100 | ||
8f28827a FW |
101 | int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args) |
102 | { | |
8011de7a | 103 | return __color_vfprintf(fp, color, fmt, args); |
8f28827a | 104 | } |
8fc0321f | 105 | |
a4e3b956 ACM |
106 | int color_snprintf(char *bf, size_t size, const char *color, |
107 | const char *fmt, ...) | |
108 | { | |
109 | va_list args; | |
110 | int r; | |
111 | ||
112 | va_start(args, fmt); | |
113 | r = color_vsnprintf(bf, size, color, fmt, args); | |
114 | va_end(args); | |
115 | return r; | |
116 | } | |
8fc0321f IM |
117 | |
118 | int color_fprintf(FILE *fp, const char *color, const char *fmt, ...) | |
119 | { | |
120 | va_list args; | |
121 | int r; | |
13d0ab5e | 122 | |
8fc0321f | 123 | va_start(args, fmt); |
a4e3b956 | 124 | r = color_vfprintf(fp, color, fmt, args); |
8fc0321f IM |
125 | va_end(args); |
126 | return r; | |
127 | } | |
128 | ||
8fc0321f IM |
129 | /* |
130 | * This function splits the buffer by newlines and colors the lines individually. | |
131 | * | |
132 | * Returns 0 on success. | |
133 | */ | |
134 | int color_fwrite_lines(FILE *fp, const char *color, | |
135 | size_t count, const char *buf) | |
136 | { | |
137 | if (!*color) | |
138 | return fwrite(buf, count, 1, fp) != 1; | |
f37a291c | 139 | |
8fc0321f IM |
140 | while (count) { |
141 | char *p = memchr(buf, '\n', count); | |
f37a291c | 142 | |
8fc0321f | 143 | if (p != buf && (fputs(color, fp) < 0 || |
f37a291c | 144 | fwrite(buf, p ? (size_t)(p - buf) : count, 1, fp) != 1 || |
8fc0321f IM |
145 | fputs(PERF_COLOR_RESET, fp) < 0)) |
146 | return -1; | |
147 | if (!p) | |
148 | return 0; | |
149 | if (fputc('\n', fp) < 0) | |
150 | return -1; | |
151 | count -= p + 1 - buf; | |
152 | buf = p + 1; | |
153 | } | |
154 | return 0; | |
155 | } | |
156 | ||
83a0944f | 157 | const char *get_percent_color(double percent) |
1e11fd82 | 158 | { |
83a0944f | 159 | const char *color = PERF_COLOR_NORMAL; |
1e11fd82 FW |
160 | |
161 | /* | |
162 | * We color high-overhead entries in red, mid-overhead | |
163 | * entries in green - and keep the low overhead places | |
164 | * normal: | |
165 | */ | |
f77c6e9c | 166 | if (fabs(percent) >= MIN_RED) |
1e11fd82 FW |
167 | color = PERF_COLOR_RED; |
168 | else { | |
f77c6e9c | 169 | if (fabs(percent) > MIN_GREEN) |
1e11fd82 FW |
170 | color = PERF_COLOR_GREEN; |
171 | } | |
172 | return color; | |
173 | } | |
8fc0321f | 174 | |
1e11fd82 FW |
175 | int percent_color_fprintf(FILE *fp, const char *fmt, double percent) |
176 | { | |
177 | int r; | |
83a0944f | 178 | const char *color; |
1e11fd82 FW |
179 | |
180 | color = get_percent_color(percent); | |
181 | r = color_fprintf(fp, color, fmt, percent); | |
182 | ||
183 | return r; | |
184 | } | |
a4e3b956 | 185 | |
1f513b2c RR |
186 | int value_color_snprintf(char *bf, size_t size, const char *fmt, double value) |
187 | { | |
188 | const char *color = get_percent_color(value); | |
189 | return color_snprintf(bf, size, color, fmt, value); | |
190 | } | |
191 | ||
53805eca | 192 | int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...) |
a4e3b956 | 193 | { |
53805eca MHD |
194 | va_list args; |
195 | double percent; | |
53805eca MHD |
196 | |
197 | va_start(args, fmt); | |
198 | percent = va_arg(args, double); | |
199 | va_end(args); | |
1f513b2c | 200 | return value_color_snprintf(bf, size, fmt, percent); |
a4e3b956 | 201 | } |
d675107c NK |
202 | |
203 | int percent_color_len_snprintf(char *bf, size_t size, const char *fmt, ...) | |
204 | { | |
205 | va_list args; | |
206 | int len; | |
207 | double percent; | |
208 | const char *color; | |
209 | ||
210 | va_start(args, fmt); | |
211 | len = va_arg(args, int); | |
212 | percent = va_arg(args, double); | |
213 | va_end(args); | |
214 | ||
215 | color = get_percent_color(percent); | |
216 | return color_snprintf(bf, size, color, fmt, len, percent); | |
217 | } |