error: bootstrap errno like error code approach

src/threads.h

@@ -27,6 +27,8 @@
 #ifndef __THREADS_H__
 #define __THREADS_H__
 
+#include "suricata-common.h"
+
 #ifndef THREAD_NAME_LEN
 #define THREAD_NAME_LEN 16
 #endif

src/util-error.c

@@ -28,6 +28,7 @@
 
 #include "util-error.h"
 
+thread_local SCError sc_errno = SC_OK;
 #define CASE_CODE(E)  case E: return #E
 
 /**
@@ -41,6 +42,10 @@ const char * SCErrorToString(SCError err)
 {
     switch (err) {
         CASE_CODE (SC_OK);
+
+        CASE_CODE(SC_ENOMEM);
+        CASE_CODE(SC_EINVAL);
+
         CASE_CODE (SC_ERR_MEM_ALLOC);
         CASE_CODE (SC_ERR_ACTION_ORDER);
         CASE_CODE (SC_ERR_PCRE_MATCH);

src/util-error.h

@@ -24,10 +24,13 @@
 #ifndef __ERROR_H__
 #define __ERROR_H__
 
-
 /* different error types */
 typedef enum {
     SC_OK,
+
+    SC_ENOMEM,
+    SC_EINVAL,
+
     SC_ERR_MEM_ALLOC,
     SC_ERR_PCRE_MATCH,
     SC_ERR_ACTION_ORDER,
@@ -391,5 +394,8 @@ typedef enum {
 
 const char *SCErrorToString(SCError);
 
+#include "threads.h"
+
+extern thread_local SCError sc_errno;
 
 #endif /* __ERROR_H__ */