1 files changed, 94 insertions, 0 deletions
diff --git a/xxx/lib/logger/log.c b/xxx/lib/logger/log.c
new file mode 100644
index 0000000..430f982
--- /dev/null
+++ b/xxx/lib/logger/log.c
@@ -0,0 +1,94 @@
+#define FOOLOS_MODULE_NAME "log"
+
+#include <stdarg.h>
+#include <stdbool.h>
+
+#include "log.h"
+#include "kernel/config.h"
+#include "terminal/vt52.h"
+#include "lib/printf/printf.h"
+#include "kernel/timer.h"
+
+
+static char buffer[LOG_BUF_SIZE];
+static int first=0;
+static int last=0;
+static bool init=true;// 
+
+static void init_log()
+{
+}
+
+void log(char *module_name, int log_level, char *format_string, ...)
+{
+
+    #ifdef FOOLOS_LOG_OFF
+    return;
+    #endif
+
+    if(log_level<FOOLOS_LOG_INFO)return;
+
+    char buf_info[256];
+    char buf_log[256];
+    char buf_time[20];
+
+    uint32_t t=timer_get_ticks();
+    uint32_t s=t/25;
+    uint32_t ms=t*1000/25-1000*s;
+
+    tfp_sprintf(buf_time,"[%3d.%05d]",s,ms);
+
+    va_list va;
+    va_start(va,format_string);
+    tfp_vsprintf(buf_info,format_string,va);
+    va_end(va);
+
+    tfp_sprintf(buf_log,"%s %s: %s\n",buf_time,module_name,buf_info);
+
+    if(init)console_put_str_gray(buf_log);
+
+    for(int i=0;buf_log[i]!=0;i++)
+    {
+	buffer[last]=buf_log[i];
+	last=(last+1)%LOG_BUF_SIZE;
+	if(first<last)if(last-first>=LOG_BUF_SIZE)first=(first+1)%LOG_BUF_SIZE;
+	if(last>first)if(LOG_BUF_SIZE-last+first>=LOG_BUF_SIZE)first=(first+1)%LOG_BUF_SIZE;
+    }
+
+
+}
+
+void panic(char *module_name,  char *message)
+{
+    char buf_log[256];
+    tfp_sprintf(buf_log,"KERNEL PANIC !! %s: %s\n",module_name,message);
+    //console_put_str_red(buf_log);
+
+    while(1)
+    {
+        asm volatile("cli");
+	asm volatile("hlt");
+    }
+
+}
+
+// unused shit!
+/*
+static void log_log()
+{
+    #ifdef FOOLOS_LOG_OFF
+    return;
+    #endif
+
+    char buf_log[256];
+    tfp_sprintf(buf_log,"[  0.00000] log: buffer state: first=%d, last=%d, buf_size=%d\n",first,last,LOG_BUF_SIZE);
+    console_put_str_gray(buf_log);
+    for(int i=first;i!=last;i++)
+    {
+	console_put_char_gray(buffer[i]);
+
+    }
+
+    init=true;
+}
+*/