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67 lines
1.3 KiB
67 lines
1.3 KiB
#include "log.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 <fcntl.h>
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#include <unistd.h>
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int colored = 1;
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int v = 0;
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static const char *verbosity_colors[] = {
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"", // L_SILENT
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"\x1B[1;31m", // L_ERROR
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"\x1B[1;34m", // L_INFO
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"\x1B[1;30m", // L_DEBUG
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};
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void init_log(int verbosity) {
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v = verbosity;
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/* set FD_CLOEXEC flag to prevent programs called with exec to write into logs */
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int i, flag;
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int fd[] = { STDOUT_FILENO, STDIN_FILENO, STDERR_FILENO };
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for (i = 0; i < 3; ++i) {
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flag = fcntl(fd[i], F_GETFD);
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if (flag != -1) {
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fcntl(fd[i], F_SETFD, flag | FD_CLOEXEC);
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}
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}
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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(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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exit(1);
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}
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void sway_log(int verbosity, char* format, ...) {
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if (verbosity <= v) {
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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) {
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fprintf(stderr, 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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if (colored) {
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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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