refactor: made jsonrpc an independent library

lib/webfuse/core/json_util.c

@@ -0,0 +1,48 @@
+#include "webfuse/core/json_util.h"
+#include "jsonrpc/status.h"
+
+int wf_impl_json_get_int(json_t const * object, char const * key, int default_value)
+{
+	int result = default_value;
+
+	json_t * holder = json_object_get(object, key);
+	if ((NULL != holder) && (json_is_integer(holder)))
+	{
+		result = json_integer_value(holder);
+	}
+
+	return result;
+}
+
+static wf_status wf_impl_jsonrc_code_to_status(int code)
+{
+	switch (code)
+	{
+		case JSONRPC_GOOD:
+			return WF_GOOD;
+		case JSONRPC_BAD:
+			return WF_BAD;
+		case JSONRPC_BAD_BUSY:
+			return WF_BAD_BUSY;
+		case JSONRPC_BAD_TIMEOUT:
+			return WF_BAD_TIMEOUT;
+		case JSONRPC_BAD_FORMAT:
+			return WF_BAD_FORMAT;
+		default:
+			return (wf_status) code;
+	}
+}
+
+wf_status 
+wf_impl_jsonrpc_get_status(
+	json_t const * error)
+{
+	wf_status status = WF_GOOD;
+	if (NULL != error)
+	{
+		int code = wf_impl_json_get_int(error, "code", WF_BAD_FORMAT);
+		status = wf_impl_jsonrc_code_to_status(code);
+	}
+
+	return status;
+}

lib/webfuse/core/json_util.h

@@ -0,0 +1,26 @@
+#ifndef WF_JSON_UTIL_H
+#define WF_JSON_UTIL_H
+
+#include <jansson.h>
+#include "webfuse/core/status.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+extern int
+wf_impl_json_get_int(
+    json_t const * object,
+    char const * key,
+    int default_value);
+
+extern wf_status 
+wf_impl_jsonrpc_get_status(
+    json_t const * error);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif