160 lines
3.4 KiB
C
160 lines
3.4 KiB
C
#include "log.h"
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#include "sway.h"
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <libgen.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <signal.h>
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#include <errno.h>
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#include <string.h>
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#include <stringop.h>
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#include <execinfo.h>
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int colored = 1;
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log_importance_t loglevel_default = L_ERROR;
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log_importance_t v = L_SILENT;
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static const char *verbosity_colors[] = {
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[L_SILENT] = "",
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[L_ERROR ] = "\x1B[1;31m",
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[L_INFO ] = "\x1B[1;34m",
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[L_DEBUG ] = "\x1B[1;30m",
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};
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void init_log(log_importance_t verbosity) {
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if (verbosity != L_DEBUG) {
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// command "debuglog" needs to know the user specified log level when
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// turning off debug logging.
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loglevel_default = verbosity;
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}
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v = verbosity;
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signal(SIGSEGV, error_handler);
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signal(SIGABRT, error_handler);
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}
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void set_log_level(log_importance_t verbosity) {
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v = verbosity;
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}
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void reset_log_level(void) {
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v = loglevel_default;
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}
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bool toggle_debug_logging(void) {
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v = (v == L_DEBUG) ? loglevel_default : L_DEBUG;
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return (v == L_DEBUG);
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}
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void sway_log_colors(int mode) {
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colored = (mode == 1) ? 1 : 0;
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}
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void sway_abort(const char *format, ...) {
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fprintf(stderr, "ERROR: ");
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va_list args;
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va_start(args, format);
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vfprintf(stderr, format, args);
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va_end(args);
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fprintf(stderr, "\n");
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sway_terminate();
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}
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#ifndef NDEBUG
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void _sway_log(const char *filename, int line, log_importance_t verbosity, const char* format, ...) {
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#else
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void _sway_log(log_importance_t verbosity, const char* format, ...) {
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#endif
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if (verbosity <= v) {
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unsigned int c = verbosity;
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if (c > sizeof(verbosity_colors) / sizeof(char *)) {
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c = sizeof(verbosity_colors) / sizeof(char *) - 1;
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}
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if (colored && isatty(STDERR_FILENO)) {
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fprintf(stderr, "%s", verbosity_colors[c]);
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}
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va_list args;
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va_start(args, format);
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#ifndef NDEBUG
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char *file = strdup(filename);
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fprintf(stderr, "[%s:%d] ", basename(file), line);
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free(file);
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#endif
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vfprintf(stderr, format, args);
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va_end(args);
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if (colored && isatty(STDERR_FILENO)) {
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fprintf(stderr, "\x1B[0m");
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}
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fprintf(stderr, "\n");
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}
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}
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void sway_log_errno(log_importance_t verbosity, char* format, ...) {
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if (verbosity <= v) {
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unsigned int c = verbosity;
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if (c > sizeof(verbosity_colors) / sizeof(char *)) {
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c = sizeof(verbosity_colors) / sizeof(char *) - 1;
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}
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if (colored && isatty(STDERR_FILENO)) {
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fprintf(stderr, "%s", verbosity_colors[c]);
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}
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va_list args;
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va_start(args, format);
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vfprintf(stderr, format, args);
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va_end(args);
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fprintf(stderr, ": ");
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fprintf(stderr, "%s", strerror(errno));
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if (colored && isatty(STDERR_FILENO)) {
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fprintf(stderr, "\x1B[0m");
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}
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fprintf(stderr, "\n");
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}
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}
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bool _sway_assert(bool condition, const char* format, ...) {
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if (condition) {
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return true;
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}
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va_list args;
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va_start(args, format);
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sway_log(L_ERROR, format, args);
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va_end(args);
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#ifndef NDEBUG
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raise(SIGABRT);
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#endif
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return false;
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}
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void error_handler(int sig) {
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int i;
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int max_lines = 20;
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void *array[max_lines];
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char **bt;
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size_t bt_len;
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sway_log(L_ERROR, "Error: Signal %d. Printing backtrace", sig);
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bt_len = backtrace(array, max_lines);
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bt = backtrace_symbols(array, bt_len);
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if (!bt) {
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sway_log(L_ERROR, "Could not allocate sufficient memory for backtrace_symbols(), falling back to stderr");
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backtrace_symbols_fd(array, bt_len, STDERR_FILENO);
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exit(1);
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}
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for (i = 0; (size_t)i < bt_len; i++) {
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sway_log(L_ERROR, "Backtrace: %s", bt[i]);
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}
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exit(1);
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}
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