Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
e7f01d1e | 2 | #include <linux/kernel.h> |
8fc0321f | 3 | #include "cache.h" |
41840d21 | 4 | #include "config.h" |
d0761e37 ACM |
5 | #include <stdlib.h> |
6 | #include <stdio.h> | |
8fc0321f | 7 | #include "color.h" |
f77c6e9c | 8 | #include <math.h> |
16b7c9bd | 9 | #include <unistd.h> |
8fc0321f | 10 | |
13d0ab5e | 11 | int perf_use_color_default = -1; |
8fc0321f | 12 | |
8fc0321f IM |
13 | int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty) |
14 | { | |
15 | if (value) { | |
16 | if (!strcasecmp(value, "never")) | |
17 | return 0; | |
18 | if (!strcasecmp(value, "always")) | |
19 | return 1; | |
20 | if (!strcasecmp(value, "auto")) | |
21 | goto auto_color; | |
22 | } | |
23 | ||
24 | /* Missing or explicit false to turn off colorization */ | |
25 | if (!perf_config_bool(var, value)) | |
26 | return 0; | |
27 | ||
28 | /* any normal truth value defaults to 'auto' */ | |
29 | auto_color: | |
30 | if (stdout_is_tty < 0) | |
31 | stdout_is_tty = isatty(1); | |
de7cf7ca | 32 | if (stdout_is_tty || pager_in_use()) { |
8fc0321f IM |
33 | char *term = getenv("TERM"); |
34 | if (term && strcmp(term, "dumb")) | |
35 | return 1; | |
36 | } | |
37 | return 0; | |
38 | } | |
39 | ||
b8cbb349 WN |
40 | int perf_color_default_config(const char *var, const char *value, |
41 | void *cb __maybe_unused) | |
8fc0321f IM |
42 | { |
43 | if (!strcmp(var, "color.ui")) { | |
44 | perf_use_color_default = perf_config_colorbool(var, value, -1); | |
45 | return 0; | |
46 | } | |
47 | ||
b8cbb349 | 48 | return 0; |
8fc0321f IM |
49 | } |
50 | ||
a4e3b956 ACM |
51 | static int __color_vsnprintf(char *bf, size_t size, const char *color, |
52 | const char *fmt, va_list args, const char *trail) | |
53 | { | |
54 | int r = 0; | |
55 | ||
56 | /* | |
57 | * Auto-detect: | |
58 | */ | |
59 | if (perf_use_color_default < 0) { | |
60 | if (isatty(1) || pager_in_use()) | |
61 | perf_use_color_default = 1; | |
62 | else | |
63 | perf_use_color_default = 0; | |
64 | } | |
65 | ||
66 | if (perf_use_color_default && *color) | |
e7f01d1e ACM |
67 | r += scnprintf(bf, size, "%s", color); |
68 | r += vscnprintf(bf + r, size - r, fmt, args); | |
a4e3b956 | 69 | if (perf_use_color_default && *color) |
e7f01d1e | 70 | r += scnprintf(bf + r, size - r, "%s", PERF_COLOR_RESET); |
a4e3b956 | 71 | if (trail) |
e7f01d1e | 72 | r += scnprintf(bf + r, size - r, "%s", trail); |
a4e3b956 ACM |
73 | return r; |
74 | } | |
75 | ||
b7a001d2 | 76 | /* Colors are not included in return value */ |
8f28827a | 77 | static int __color_vfprintf(FILE *fp, const char *color, const char *fmt, |
8011de7a | 78 | va_list args) |
8fc0321f IM |
79 | { |
80 | int r = 0; | |
81 | ||
13d0ab5e IM |
82 | /* |
83 | * Auto-detect: | |
84 | */ | |
85 | if (perf_use_color_default < 0) { | |
4aa9015f | 86 | if (isatty(fileno(fp)) || pager_in_use()) |
13d0ab5e IM |
87 | perf_use_color_default = 1; |
88 | else | |
89 | perf_use_color_default = 0; | |
90 | } | |
91 | ||
92 | if (perf_use_color_default && *color) | |
b7a001d2 | 93 | fprintf(fp, "%s", color); |
8fc0321f | 94 | r += vfprintf(fp, fmt, args); |
13d0ab5e | 95 | if (perf_use_color_default && *color) |
b7a001d2 | 96 | fprintf(fp, "%s", PERF_COLOR_RESET); |
8fc0321f IM |
97 | return r; |
98 | } | |
99 | ||
a4e3b956 ACM |
100 | int color_vsnprintf(char *bf, size_t size, const char *color, |
101 | const char *fmt, va_list args) | |
102 | { | |
103 | return __color_vsnprintf(bf, size, color, fmt, args, NULL); | |
104 | } | |
105 | ||
8f28827a FW |
106 | int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args) |
107 | { | |
8011de7a | 108 | return __color_vfprintf(fp, color, fmt, args); |
8f28827a | 109 | } |
8fc0321f | 110 | |
a4e3b956 ACM |
111 | int color_snprintf(char *bf, size_t size, const char *color, |
112 | const char *fmt, ...) | |
113 | { | |
114 | va_list args; | |
115 | int r; | |
116 | ||
117 | va_start(args, fmt); | |
118 | r = color_vsnprintf(bf, size, color, fmt, args); | |
119 | va_end(args); | |
120 | return r; | |
121 | } | |
8fc0321f IM |
122 | |
123 | int color_fprintf(FILE *fp, const char *color, const char *fmt, ...) | |
124 | { | |
125 | va_list args; | |
126 | int r; | |
13d0ab5e | 127 | |
8fc0321f | 128 | va_start(args, fmt); |
a4e3b956 | 129 | r = color_vfprintf(fp, color, fmt, args); |
8fc0321f IM |
130 | va_end(args); |
131 | return r; | |
132 | } | |
133 | ||
8fc0321f IM |
134 | /* |
135 | * This function splits the buffer by newlines and colors the lines individually. | |
136 | * | |
137 | * Returns 0 on success. | |
138 | */ | |
139 | int color_fwrite_lines(FILE *fp, const char *color, | |
140 | size_t count, const char *buf) | |
141 | { | |
142 | if (!*color) | |
143 | return fwrite(buf, count, 1, fp) != 1; | |
f37a291c | 144 | |
8fc0321f IM |
145 | while (count) { |
146 | char *p = memchr(buf, '\n', count); | |
f37a291c | 147 | |
8fc0321f | 148 | if (p != buf && (fputs(color, fp) < 0 || |
f37a291c | 149 | fwrite(buf, p ? (size_t)(p - buf) : count, 1, fp) != 1 || |
8fc0321f IM |
150 | fputs(PERF_COLOR_RESET, fp) < 0)) |
151 | return -1; | |
152 | if (!p) | |
153 | return 0; | |
154 | if (fputc('\n', fp) < 0) | |
155 | return -1; | |
156 | count -= p + 1 - buf; | |
157 | buf = p + 1; | |
158 | } | |
159 | return 0; | |
160 | } | |
161 | ||
83a0944f | 162 | const char *get_percent_color(double percent) |
1e11fd82 | 163 | { |
83a0944f | 164 | const char *color = PERF_COLOR_NORMAL; |
1e11fd82 FW |
165 | |
166 | /* | |
167 | * We color high-overhead entries in red, mid-overhead | |
168 | * entries in green - and keep the low overhead places | |
169 | * normal: | |
170 | */ | |
f77c6e9c | 171 | if (fabs(percent) >= MIN_RED) |
1e11fd82 FW |
172 | color = PERF_COLOR_RED; |
173 | else { | |
f77c6e9c | 174 | if (fabs(percent) > MIN_GREEN) |
1e11fd82 FW |
175 | color = PERF_COLOR_GREEN; |
176 | } | |
177 | return color; | |
178 | } | |
8fc0321f | 179 | |
1e11fd82 FW |
180 | int percent_color_fprintf(FILE *fp, const char *fmt, double percent) |
181 | { | |
182 | int r; | |
83a0944f | 183 | const char *color; |
1e11fd82 FW |
184 | |
185 | color = get_percent_color(percent); | |
186 | r = color_fprintf(fp, color, fmt, percent); | |
187 | ||
188 | return r; | |
189 | } | |
a4e3b956 | 190 | |
1f513b2c RR |
191 | int value_color_snprintf(char *bf, size_t size, const char *fmt, double value) |
192 | { | |
193 | const char *color = get_percent_color(value); | |
194 | return color_snprintf(bf, size, color, fmt, value); | |
195 | } | |
196 | ||
53805eca | 197 | int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...) |
a4e3b956 | 198 | { |
53805eca MHD |
199 | va_list args; |
200 | double percent; | |
53805eca MHD |
201 | |
202 | va_start(args, fmt); | |
203 | percent = va_arg(args, double); | |
204 | va_end(args); | |
1f513b2c | 205 | return value_color_snprintf(bf, size, fmt, percent); |
a4e3b956 | 206 | } |
d675107c NK |
207 | |
208 | int percent_color_len_snprintf(char *bf, size_t size, const char *fmt, ...) | |
209 | { | |
210 | va_list args; | |
211 | int len; | |
212 | double percent; | |
213 | const char *color; | |
214 | ||
215 | va_start(args, fmt); | |
216 | len = va_arg(args, int); | |
217 | percent = va_arg(args, double); | |
218 | va_end(args); | |
219 | ||
220 | color = get_percent_color(percent); | |
221 | return color_snprintf(bf, size, color, fmt, len, percent); | |
222 | } |