bunkum

commit ed1ca93cc304623a7ed8e397ff0062e8f277f453
parent d237bbe52df14b068b0948ff7d099ac47b4e0c63
Author: quantumish <freifeld.david@gmail.com>
Date:   Sun,  9 Apr 2023 01:08:50 -0700

Add logging utilities

Diffstat:
M
http.c
 | 
8
++++++++
A
utils/log.c
 | 
55
+++++++++++++++++++++++++++++++++++++++++++++++++++++++
A
utils/log.h
 | 
22
++++++++++++++++++++++

3 files changed, 85 insertions(+), 0 deletions(-)
diff --git a/http.c b/http.c
@@ -16,6 +16,7 @@
 
 #include <zlib.h>
 
+#include "utils/log.h"
 #include "utils/time.h"
 #include "utils/shitvec.h"
 #include "http/response.h"
@@ -128,6 +129,13 @@ void* handle_conn(void* ctxt) {
 }
 
 int main() {
+    log_trace("am i ever gonna use this");
+    log_debug("%d too many errors", 1);
+    log_info("uhhh hi %s", "world");
+    log_warn("listen here %s", "buckaroo");
+    log_error("that wasn't good");
+    log_fatal("AAAAAA");
+    
     int s = socket(AF_INET, SOCK_STREAM, 0);
     if (s == -1) die("socket");
 
diff --git a/utils/log.c b/utils/log.c
@@ -0,0 +1,55 @@
+#include <stdio.h>
+#include <stdarg.h>
+#include <time.h>
+
+#include "log.h"
+
+#define LOG_MAX_MSGLEN 128
+
+#define ANSI_RED "\x1b[31m"
+#define ANSI_BOLDRED "\x1b[1;31m"
+#define ANSI_GREY "\x1b[38;5;239m"
+#define ANSI_YELLOW "\x1b[33m"
+#define ANSI_GREEN "\x1b[32m"
+#define ANSI_CYAN "\x1b[36m"
+#define ANSI_MAGENTA "\x1b[36m"
+#define ANSI_RESET "\x1b[0m"
+
+char* lvl_to_color(enum log_level lvl) {
+    switch (lvl) {
+    case LOG_TRACE:
+        return ANSI_MAGENTA;
+    case LOG_DEBUG:
+        return ANSI_GREEN;
+    case LOG_INFO:
+        return ANSI_CYAN;
+    case LOG_WARN:
+        return ANSI_YELLOW;
+    case LOG_ERROR:
+        return ANSI_RED;
+    case LOG_FATAL:
+        return ANSI_BOLDRED;
+    }
+}
+
+size_t log_min_level = 0;
+
+void log_msg(enum log_level lvl, char* lvl_name, char* fmt, ...) {
+    if (lvl < log_min_level) return;
+    
+    char msg[LOG_MAX_MSGLEN];
+    
+    va_list args;
+    va_start(args, fmt);
+    vsprintf(msg, fmt, args);
+
+    time_t now = time(0);
+    struct tm* local = localtime(&now);
+
+    char* lvl_color = lvl_to_color(lvl);
+    
+    printf(ANSI_GREY "%02d/%02d/%02d %02d:%02d:%02d %s%s" ANSI_RESET ": %s\n",
+           local->tm_mon, local->tm_mday, local->tm_year,
+           local->tm_hour, local->tm_min, local->tm_sec,
+           lvl_color, lvl_name, msg);
+}
diff --git a/utils/log.h b/utils/log.h
@@ -0,0 +1,22 @@
+#ifndef LOG_H
+#define LOG_H
+
+enum log_level {
+    LOG_TRACE,
+    LOG_DEBUG,
+    LOG_INFO,
+    LOG_WARN,
+    LOG_ERROR,
+    LOG_FATAL
+};
+
+void log_msg(enum log_level lvl, char* lvl_name, char* fmt, ...);
+#define VA_ARGS(...) , ##__VA_ARGS__
+#define log_trace(fmt, ...) log_msg(LOG_TRACE, "TRACE", fmt, ##__VA_ARGS__)
+#define log_debug(fmt, ...) log_msg(LOG_DEBUG, "DEBUG", fmt, ##__VA_ARGS__)
+#define log_info(fmt, ...) log_msg(LOG_INFO, "INFO", fmt, ##__VA_ARGS__)
+#define log_warn(fmt, ...) log_msg(LOG_WARN, "WARN", fmt, ##__VA_ARGS__)
+#define log_error(fmt, ...) log_msg(LOG_ERROR, "ERROR", fmt, ##__VA_ARGS__)
+#define log_fatal(fmt, ...) log_msg(LOG_FATAL, "FATAL", fmt, ##__VA_ARGS__)
+
+#endif