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); | |
27 | if (stdout_is_tty || (pager_in_use() && pager_use_color)) { | |
28 | char *term = getenv("TERM"); | |
29 | if (term && strcmp(term, "dumb")) | |
30 | return 1; | |
31 | } | |
32 | return 0; | |
33 | } | |
34 | ||
35 | int perf_color_default_config(const char *var, const char *value, void *cb) | |
36 | { | |
37 | if (!strcmp(var, "color.ui")) { | |
38 | perf_use_color_default = perf_config_colorbool(var, value, -1); | |
39 | return 0; | |
40 | } | |
41 | ||
42 | return perf_default_config(var, value, cb); | |
43 | } | |
44 | ||
a4e3b956 ACM |
45 | static int __color_vsnprintf(char *bf, size_t size, const char *color, |
46 | const char *fmt, va_list args, const char *trail) | |
47 | { | |
48 | int r = 0; | |
49 | ||
50 | /* | |
51 | * Auto-detect: | |
52 | */ | |
53 | if (perf_use_color_default < 0) { | |
54 | if (isatty(1) || pager_in_use()) | |
55 | perf_use_color_default = 1; | |
56 | else | |
57 | perf_use_color_default = 0; | |
58 | } | |
59 | ||
60 | if (perf_use_color_default && *color) | |
e7f01d1e ACM |
61 | r += scnprintf(bf, size, "%s", color); |
62 | r += vscnprintf(bf + r, size - r, fmt, args); | |
a4e3b956 | 63 | if (perf_use_color_default && *color) |
e7f01d1e | 64 | r += scnprintf(bf + r, size - r, "%s", PERF_COLOR_RESET); |
a4e3b956 | 65 | if (trail) |
e7f01d1e | 66 | r += scnprintf(bf + r, size - r, "%s", trail); |
a4e3b956 ACM |
67 | return r; |
68 | } | |
69 | ||
b7a001d2 | 70 | /* Colors are not included in return value */ |
8f28827a | 71 | static int __color_vfprintf(FILE *fp, const char *color, const char *fmt, |
8011de7a | 72 | va_list args) |
8fc0321f IM |
73 | { |
74 | int r = 0; | |
75 | ||
13d0ab5e IM |
76 | /* |
77 | * Auto-detect: | |
78 | */ | |
79 | if (perf_use_color_default < 0) { | |
4aa9015f | 80 | if (isatty(fileno(fp)) || pager_in_use()) |
13d0ab5e IM |
81 | perf_use_color_default = 1; |
82 | else | |
83 | perf_use_color_default = 0; | |
84 | } | |
85 | ||
86 | if (perf_use_color_default && *color) | |
b7a001d2 | 87 | fprintf(fp, "%s", color); |
8fc0321f | 88 | r += vfprintf(fp, fmt, args); |
13d0ab5e | 89 | if (perf_use_color_default && *color) |
b7a001d2 | 90 | fprintf(fp, "%s", PERF_COLOR_RESET); |
8fc0321f IM |
91 | return r; |
92 | } | |
93 | ||
a4e3b956 ACM |
94 | int color_vsnprintf(char *bf, size_t size, const char *color, |
95 | const char *fmt, va_list args) | |
96 | { | |
97 | return __color_vsnprintf(bf, size, color, fmt, args, NULL); | |
98 | } | |
99 | ||
8f28827a FW |
100 | int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args) |
101 | { | |
8011de7a | 102 | return __color_vfprintf(fp, color, fmt, args); |
8f28827a | 103 | } |
8fc0321f | 104 | |
a4e3b956 ACM |
105 | int color_snprintf(char *bf, size_t size, const char *color, |
106 | const char *fmt, ...) | |
107 | { | |
108 | va_list args; | |
109 | int r; | |
110 | ||
111 | va_start(args, fmt); | |
112 | r = color_vsnprintf(bf, size, color, fmt, args); | |
113 | va_end(args); | |
114 | return r; | |
115 | } | |
8fc0321f IM |
116 | |
117 | int color_fprintf(FILE *fp, const char *color, const char *fmt, ...) | |
118 | { | |
119 | va_list args; | |
120 | int r; | |
13d0ab5e | 121 | |
8fc0321f | 122 | va_start(args, fmt); |
a4e3b956 | 123 | r = color_vfprintf(fp, color, fmt, args); |
8fc0321f IM |
124 | va_end(args); |
125 | return r; | |
126 | } | |
127 | ||
8fc0321f IM |
128 | /* |
129 | * This function splits the buffer by newlines and colors the lines individually. | |
130 | * | |
131 | * Returns 0 on success. | |
132 | */ | |
133 | int color_fwrite_lines(FILE *fp, const char *color, | |
134 | size_t count, const char *buf) | |
135 | { | |
136 | if (!*color) | |
137 | return fwrite(buf, count, 1, fp) != 1; | |
f37a291c | 138 | |
8fc0321f IM |
139 | while (count) { |
140 | char *p = memchr(buf, '\n', count); | |
f37a291c | 141 | |
8fc0321f | 142 | if (p != buf && (fputs(color, fp) < 0 || |
f37a291c | 143 | fwrite(buf, p ? (size_t)(p - buf) : count, 1, fp) != 1 || |
8fc0321f IM |
144 | fputs(PERF_COLOR_RESET, fp) < 0)) |
145 | return -1; | |
146 | if (!p) | |
147 | return 0; | |
148 | if (fputc('\n', fp) < 0) | |
149 | return -1; | |
150 | count -= p + 1 - buf; | |
151 | buf = p + 1; | |
152 | } | |
153 | return 0; | |
154 | } | |
155 | ||
83a0944f | 156 | const char *get_percent_color(double percent) |
1e11fd82 | 157 | { |
83a0944f | 158 | const char *color = PERF_COLOR_NORMAL; |
1e11fd82 FW |
159 | |
160 | /* | |
161 | * We color high-overhead entries in red, mid-overhead | |
162 | * entries in green - and keep the low overhead places | |
163 | * normal: | |
164 | */ | |
f77c6e9c | 165 | if (fabs(percent) >= MIN_RED) |
1e11fd82 FW |
166 | color = PERF_COLOR_RED; |
167 | else { | |
f77c6e9c | 168 | if (fabs(percent) > MIN_GREEN) |
1e11fd82 FW |
169 | color = PERF_COLOR_GREEN; |
170 | } | |
171 | return color; | |
172 | } | |
8fc0321f | 173 | |
1e11fd82 FW |
174 | int percent_color_fprintf(FILE *fp, const char *fmt, double percent) |
175 | { | |
176 | int r; | |
83a0944f | 177 | const char *color; |
1e11fd82 FW |
178 | |
179 | color = get_percent_color(percent); | |
180 | r = color_fprintf(fp, color, fmt, percent); | |
181 | ||
182 | return r; | |
183 | } | |
a4e3b956 | 184 | |
1f513b2c RR |
185 | int value_color_snprintf(char *bf, size_t size, const char *fmt, double value) |
186 | { | |
187 | const char *color = get_percent_color(value); | |
188 | return color_snprintf(bf, size, color, fmt, value); | |
189 | } | |
190 | ||
53805eca | 191 | int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...) |
a4e3b956 | 192 | { |
53805eca MHD |
193 | va_list args; |
194 | double percent; | |
53805eca MHD |
195 | |
196 | va_start(args, fmt); | |
197 | percent = va_arg(args, double); | |
198 | va_end(args); | |
1f513b2c | 199 | return value_color_snprintf(bf, size, fmt, percent); |
a4e3b956 | 200 | } |
d675107c NK |
201 | |
202 | int percent_color_len_snprintf(char *bf, size_t size, const char *fmt, ...) | |
203 | { | |
204 | va_list args; | |
205 | int len; | |
206 | double percent; | |
207 | const char *color; | |
208 | ||
209 | va_start(args, fmt); | |
210 | len = va_arg(args, int); | |
211 | percent = va_arg(args, double); | |
212 | va_end(args); | |
213 | ||
214 | color = get_percent_color(percent); | |
215 | return color_snprintf(bf, size, color, fmt, len, percent); | |
216 | } |