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author | Drew DeVault <sir@cmpwn.com> | 2015-11-12 19:04:01 -0500 |
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committer | Drew DeVault <sir@cmpwn.com> | 2015-11-12 19:04:01 -0500 |
commit | bfcabe48ef3fc7a0388de007504fc232f826fb84 (patch) | |
tree | 8bef61a10259765dbafed49c9a2a76b4bf9ced2d /common/log.c | |
parent | Merge branch 'master' of github.com:SirCmpwn/sway (diff) | |
download | sway-bfcabe48ef3fc7a0388de007504fc232f826fb84.tar.gz sway-bfcabe48ef3fc7a0388de007504fc232f826fb84.tar.zst sway-bfcabe48ef3fc7a0388de007504fc232f826fb84.zip |
Start fleshing out wayland client implementation
This introduces a basic shared framework for making wayland clients
within sway itself.
Diffstat (limited to 'common/log.c')
-rw-r--r-- | common/log.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/common/log.c b/common/log.c new file mode 100644 index 00000000..02aac4c1 --- /dev/null +++ b/common/log.c | |||
@@ -0,0 +1,159 @@ | |||
1 | #include "log.h" | ||
2 | #include "sway.h" | ||
3 | #include <stdarg.h> | ||
4 | #include <stdio.h> | ||
5 | #include <stdlib.h> | ||
6 | #include <libgen.h> | ||
7 | #include <fcntl.h> | ||
8 | #include <unistd.h> | ||
9 | #include <signal.h> | ||
10 | #include <errno.h> | ||
11 | #include <string.h> | ||
12 | #include <stringop.h> | ||
13 | #include <execinfo.h> | ||
14 | |||
15 | int colored = 1; | ||
16 | log_importance_t loglevel_default = L_ERROR; | ||
17 | log_importance_t v = L_SILENT; | ||
18 | |||
19 | static const char *verbosity_colors[] = { | ||
20 | [L_SILENT] = "", | ||
21 | [L_ERROR ] = "\x1B[1;31m", | ||
22 | [L_INFO ] = "\x1B[1;34m", | ||
23 | [L_DEBUG ] = "\x1B[1;30m", | ||
24 | }; | ||
25 | |||
26 | void init_log(log_importance_t verbosity) { | ||
27 | if (verbosity != L_DEBUG) { | ||
28 | // command "debuglog" needs to know the user specified log level when | ||
29 | // turning off debug logging. | ||
30 | loglevel_default = verbosity; | ||
31 | } | ||
32 | v = verbosity; | ||
33 | signal(SIGSEGV, error_handler); | ||
34 | signal(SIGABRT, error_handler); | ||
35 | } | ||
36 | |||
37 | void set_log_level(log_importance_t verbosity) { | ||
38 | v = verbosity; | ||
39 | } | ||
40 | |||
41 | void reset_log_level(void) { | ||
42 | v = loglevel_default; | ||
43 | } | ||
44 | |||
45 | bool toggle_debug_logging(void) { | ||
46 | v = (v == L_DEBUG) ? loglevel_default : L_DEBUG; | ||
47 | return (v == L_DEBUG); | ||
48 | } | ||
49 | |||
50 | void sway_log_colors(int mode) { | ||
51 | colored = (mode == 1) ? 1 : 0; | ||
52 | } | ||
53 | |||
54 | void sway_abort(const char *format, ...) { | ||
55 | fprintf(stderr, "ERROR: "); | ||
56 | va_list args; | ||
57 | va_start(args, format); | ||
58 | vfprintf(stderr, format, args); | ||
59 | va_end(args); | ||
60 | fprintf(stderr, "\n"); | ||
61 | sway_terminate(); | ||
62 | } | ||
63 | |||
64 | #ifndef NDEBUG | ||
65 | void _sway_log(const char *filename, int line, log_importance_t verbosity, const char* format, ...) { | ||
66 | #else | ||
67 | void _sway_log(log_importance_t verbosity, const char* format, ...) { | ||
68 | #endif | ||
69 | if (verbosity <= v) { | ||
70 | unsigned int c = verbosity; | ||
71 | if (c > sizeof(verbosity_colors) / sizeof(char *)) { | ||
72 | c = sizeof(verbosity_colors) / sizeof(char *) - 1; | ||
73 | } | ||
74 | |||
75 | if (colored && isatty(STDERR_FILENO)) { | ||
76 | fprintf(stderr, "%s", verbosity_colors[c]); | ||
77 | } | ||
78 | |||
79 | va_list args; | ||
80 | va_start(args, format); | ||
81 | #ifndef NDEBUG | ||
82 | char *file = strdup(filename); | ||
83 | fprintf(stderr, "[%s:%d] ", basename(file), line); | ||
84 | free(file); | ||
85 | #endif | ||
86 | vfprintf(stderr, format, args); | ||
87 | va_end(args); | ||
88 | |||
89 | if (colored && isatty(STDERR_FILENO)) { | ||
90 | fprintf(stderr, "\x1B[0m"); | ||
91 | } | ||
92 | fprintf(stderr, "\n"); | ||
93 | } | ||
94 | } | ||
95 | |||
96 | void sway_log_errno(log_importance_t verbosity, char* format, ...) { | ||
97 | if (verbosity <= v) { | ||
98 | unsigned int c = verbosity; | ||
99 | if (c > sizeof(verbosity_colors) / sizeof(char *)) { | ||
100 | c = sizeof(verbosity_colors) / sizeof(char *) - 1; | ||
101 | } | ||
102 | |||
103 | if (colored && isatty(STDERR_FILENO)) { | ||
104 | fprintf(stderr, "%s", verbosity_colors[c]); | ||
105 | } | ||
106 | |||
107 | va_list args; | ||
108 | va_start(args, format); | ||
109 | vfprintf(stderr, format, args); | ||
110 | va_end(args); | ||
111 | |||
112 | fprintf(stderr, ": "); | ||
113 | fprintf(stderr, "%s", strerror(errno)); | ||
114 | |||
115 | if (colored && isatty(STDERR_FILENO)) { | ||
116 | fprintf(stderr, "\x1B[0m"); | ||
117 | } | ||
118 | fprintf(stderr, "\n"); | ||
119 | } | ||
120 | } | ||
121 | |||
122 | bool _sway_assert(bool condition, const char* format, ...) { | ||
123 | if (condition) { | ||
124 | return true; | ||
125 | } | ||
126 | |||
127 | va_list args; | ||
128 | va_start(args, format); | ||
129 | sway_log(L_ERROR, format, args); | ||
130 | va_end(args); | ||
131 | |||
132 | #ifndef NDEBUG | ||
133 | raise(SIGABRT); | ||
134 | #endif | ||
135 | |||
136 | return false; | ||
137 | } | ||
138 | |||
139 | void error_handler(int sig) { | ||
140 | int i; | ||
141 | int max_lines = 20; | ||
142 | void *array[max_lines]; | ||
143 | char **bt; | ||
144 | size_t bt_len; | ||
145 | |||
146 | sway_log(L_ERROR, "Error: Signal %d. Printing backtrace", sig); | ||
147 | bt_len = backtrace(array, max_lines); | ||
148 | bt = backtrace_symbols(array, bt_len); | ||
149 | if (!bt) { | ||
150 | sway_log(L_ERROR, "Could not allocate sufficient memory for backtrace_symbols(), falling back to stderr"); | ||
151 | backtrace_symbols_fd(array, bt_len, STDERR_FILENO); | ||
152 | exit(1); | ||
153 | } | ||
154 | |||
155 | for (i = 0; (size_t)i < bt_len; i++) { | ||
156 | sway_log(L_ERROR, "Backtrace: %s", bt[i]); | ||
157 | } | ||
158 | exit(1); | ||
159 | } | ||