Add imv_log

1 files changed, 24 insertions, 0 deletions

diff --git a/src/log.c b/src/log.c
new file mode 100644
index 0000000..4ce6ae8
--- /dev/null
+++ b/src/log.c
@@ -0,0 +1,24 @@
+#include "log.h"
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+
+static enum imv_log_level g_log_level = IMV_WARNING;
+
+void imv_log_set_level(enum imv_log_level level)
+{
+  g_log_level = level;
+}
+
+void imv_log(enum imv_log_level level, const char *fmt,  ...)
+{
+  if (level > g_log_level) {
+    return;
+  }
+
+  va_list args;
+  va_start(args, fmt);
+  vfprintf(stderr, fmt, args);
+  va_end(args);
+}