146 lines
2.8 KiB
C
146 lines
2.8 KiB
C
#include "../Inc/logger.h"
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#define LOG_USE_COLOR
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#define MAX_CALLBACKS 32
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typedef struct {
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log_LogFn fn;
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void *udata;
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int level;
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} Callback;
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static struct {
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void *udata;
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log_LockFn lock;
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int level;
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bool quiet;
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Callback callbacks[MAX_CALLBACKS];
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} L;
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static const char *level_strings[] = {
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"TRACE", "DEBUG", "INFO", "WARN", "ERROR", "FATAL"
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};
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#ifdef LOG_USE_COLOR
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static const char *level_colors[] = {
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"\x1b[94m", "\x1b[36m", "\x1b[32m", "\x1b[33m", "\x1b[31m", "\x1b[35m"
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};
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#endif
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static void stdout_callback(log_Event *ev) {
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char buf[16];
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buf[strftime(buf, sizeof(buf), "%H:%M:%S", ev->time)] = '\0';
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#ifdef LOG_USE_COLOR
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fprintf(
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ev->udata, "%s %s%-5s\x1b[0m \x1b[90m%s:%d:\x1b[0m ",
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buf, level_colors[ev->level], level_strings[ev->level],
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ev->file, ev->line);
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#else
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fprintf(
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ev->udata, "%s %-5s %s:%d: ",
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buf, level_strings[ev->level], ev->file, ev->line);
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#endif
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vfprintf(ev->udata, ev->fmt, ev->ap);
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fprintf(ev->udata, "\n");
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fflush(ev->udata);
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}
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static void file_callback(log_Event *ev) {
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char buf[64];
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buf[strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", ev->time)] = '\0';
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fprintf(
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ev->udata, "%s %-5s %s:%d: ",
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buf, level_strings[ev->level], ev->file, ev->line);
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vfprintf(ev->udata, ev->fmt, ev->ap);
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fprintf(ev->udata, "\n");
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fflush(ev->udata);
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}
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static void lock(void) {
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if (L.lock) { L.lock(true, L.udata); }
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}
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static void unlock(void) {
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if (L.lock) { L.lock(false, L.udata); }
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}
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const char* log_level_string(int level) {
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return level_strings[level];
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}
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void log_set_lock(log_LockFn fn, void *udata) {
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L.lock = fn;
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L.udata = udata;
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}
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void log_set_level(int level) {
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L.level = level;
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}
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void log_set_quiet(bool enable) {
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L.quiet = enable;
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}
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int log_add_callback(log_LogFn fn, void *udata, int level) {
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for (int i = 0; i < MAX_CALLBACKS; i++) {
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if (!L.callbacks[i].fn) {
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L.callbacks[i] = (Callback) { fn, udata, level };
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return 0;
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}
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}
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return -1;
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}
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int log_add_fp(FILE *fp, int level) {
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return log_add_callback(file_callback, fp, level);
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}
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static void init_event(log_Event *ev, void *udata) {
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if (!ev->time) {
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time_t t = time(NULL);
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ev->time = localtime(&t);
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}
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ev->udata = udata;
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}
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void log_log(int level, const char *file, int line, const char *fmt, ...) {
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log_Event ev = {
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.fmt = fmt,
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.file = file,
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.line = line,
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.level = level,
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};
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lock();
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if (!L.quiet && level >= L.level) {
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init_event(&ev, stderr);
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va_start(ev.ap, fmt);
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stdout_callback(&ev);
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va_end(ev.ap);
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}
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for (int i = 0; i < MAX_CALLBACKS && L.callbacks[i].fn; i++) {
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Callback *cb = &L.callbacks[i];
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if (level >= cb->level) {
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init_event(&ev, cb->udata);
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va_start(ev.ap, fmt);
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cb->fn(&ev);
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va_end(ev.ap);
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}
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}
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unlock();
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} |