1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
#include "log.h"
#include "sway.h"
#include "readline.h"
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <libgen.h>
#include <fcntl.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <string.h>
#include <stringop.h>
static int colored = 1;
static log_importance_t loglevel_default = L_ERROR;
static log_importance_t v = L_SILENT;
static const char *verbosity_colors[] = {
[L_SILENT] = "",
[L_ERROR ] = "\x1B[1;31m",
[L_INFO ] = "\x1B[1;34m",
[L_DEBUG ] = "\x1B[1;30m",
};
void init_log(log_importance_t verbosity) {
if (verbosity != L_DEBUG) {
// command "debuglog" needs to know the user specified log level when
// turning off debug logging.
loglevel_default = verbosity;
}
v = verbosity;
signal(SIGSEGV, error_handler);
signal(SIGABRT, error_handler);
}
void set_log_level(log_importance_t verbosity) {
v = verbosity;
}
log_importance_t get_log_level(void) {
return v;
}
void reset_log_level(void) {
v = loglevel_default;
}
bool toggle_debug_logging(void) {
v = (v == L_DEBUG) ? loglevel_default : L_DEBUG;
return (v == L_DEBUG);
}
void sway_log_colors(int mode) {
colored = (mode == 1) ? 1 : 0;
}
void sway_abort(const char *format, ...) {
fprintf(stderr, "ERROR: ");
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
fprintf(stderr, "\n");
sway_terminate(EXIT_FAILURE);
}
void _sway_log(const char *filename, int line, log_importance_t verbosity, const char* format, ...) {
if (verbosity <= v) {
unsigned int c = verbosity;
if (c > sizeof(verbosity_colors) / sizeof(char *) - 1) {
c = sizeof(verbosity_colors) / sizeof(char *) - 1;
}
if (colored && isatty(STDERR_FILENO)) {
fprintf(stderr, "%s", verbosity_colors[c]);
}
if (filename && line) {
char *file = strdup(filename);
fprintf(stderr, "[%s:%d] ", basename(file), line);
free(file);
}
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
if (colored && isatty(STDERR_FILENO)) {
fprintf(stderr, "\x1B[0m");
}
fprintf(stderr, "\n");
}
}
void sway_log_errno(log_importance_t verbosity, char* format, ...) {
if (verbosity <= v) {
unsigned int c = verbosity;
if (c > sizeof(verbosity_colors) / sizeof(char *) - 1) {
c = sizeof(verbosity_colors) / sizeof(char *) - 1;
}
if (colored && isatty(STDERR_FILENO)) {
fprintf(stderr, "%s", verbosity_colors[c]);
}
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
fprintf(stderr, ": ");
fprintf(stderr, "%s", strerror(errno));
if (colored && isatty(STDERR_FILENO)) {
fprintf(stderr, "\x1B[0m");
}
fprintf(stderr, "\n");
}
}
bool _sway_assert(bool condition, const char* format, ...) {
if (condition) {
return true;
}
va_list args;
va_start(args, format);
sway_log(L_ERROR, format, args);
va_end(args);
#ifndef NDEBUG
raise(SIGABRT);
#endif
return false;
}
void error_handler(int sig) {
#if SWAY_Backtrace_FOUND
int i;
int max_lines = 20;
void *array[max_lines];
char **bt;
size_t bt_len;
char maps_file[256];
char maps_buffer[1024];
sway_log(L_ERROR, "Error: Signal %d. Printing backtrace", sig);
bt_len = backtrace(array, max_lines);
bt = backtrace_symbols(array, bt_len);
if (!bt) {
sway_log(L_ERROR, "Could not allocate sufficient memory for backtrace_symbols(), falling back to stderr");
backtrace_symbols_fd(array, bt_len, STDERR_FILENO);
exit(1);
}
for (i = 0; (size_t)i < bt_len; i++) {
sway_log(L_ERROR, "Backtrace: %s", bt[i]);
}
sway_log(L_ERROR, "Maps:");
pid_t pid = getpid();
if (snprintf(maps_file, 255, "/proc/%zd/maps", (size_t)pid) < 255) {
FILE *maps = fopen(maps_file, "r");
while (!feof(maps)) {
char *m = read_line_buffer(maps, maps_buffer, 1024);
if (!m) {
sway_log(L_ERROR, "Unable to allocate memory to show maps");
break;
}
sway_log(L_ERROR, "%s", m);
}
fclose(maps);
}
#else
sway_log(L_ERROR, "Error: Signal %d.", sig);
#endif
exit(1);
}
|
