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