[wip] error handling module

1 files changed, 28 insertions, 1 deletions

diff --git a/robot/errcatch.c b/robot/errcatch.c
index 5b42bb4..a70a409 100644
--- a/robot/errcatch.c
+++ b/robot/errcatch.c
@@ -1,7 +1,34 @@
+#include <stdlib.h>
+#include <string.h>
+
 #include "errcatch.h"
 
+w2_s_error g_w2_error_buffer[W2_ERROR_BUFFER_SIZE] = {};
+uint8_t g_w2_error_index = 0;
+uint8_t g_w2_error_offset = 0;
+
 void w2_errcatch_main() {}
 
-void w2_errcatch_throw_msg(enum w2_e_errorcodes code, uint16_t length, const char *message) {}
+
+/**
+ * allocate and initialize error struct
+ *
+ * TODO: doesn't handle null pointers from calloc
+ */
+inline w2_s_error* w2_alloc_error(enum w2_e_errorcodes code, uint16_t length, const char *message) {
+  w2_s_error* error = calloc(sizeof(w2_s_error) + length, 1);
+
+	memcpy(error, &(w2_s_error const){ .code = code, .message_length = length }, sizeof(w2_s_error));
+	
+	// strncpy(error->message, message, length);
+
+  return error;
+}
+
+void w2_errcatch_throw_msg(enum w2_e_errorcodes code, uint16_t length, const char *message) {
+	w2_s_error error = *w2_alloc_error(code, length, message);
+	g_w2_error_buffer[g_w2_error_index] = error;
+	g_w2_error_index = (g_w2_error_index) & W2_ERROR_BUFFER_SIZE;
+}
 
 void w2_errcatch_throw(enum w2_e_errorcodes code) { w2_errcatch_throw_msg(code, 0, ""); }