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#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>
int colored = 1;
log_importance_t loglevel_default = L_ERROR;
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;
}
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);
}
#ifndef NDEBUG
void _sway_log(const char *filename, int line, log_importance_t verbosity, const char* format, ...) {
#else
void _sway_log(log_importance_t verbosity, const char* format, ...) {
#endif
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);
#ifndef NDEBUG
char *file = strdup(filename);
fprintf(stderr, "[%s:%d] ", basename(file), line);
free(file);
#endif
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);
}
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