refactor: free linear memory func

runtime/include/sandbox.h

@@ -124,6 +124,7 @@ extern void worker_thread_wakeup_sandbox(struct sandbox *sandbox);
 
 struct sandbox *sandbox_allocate(struct sandbox_request *sandbox_request);
 void            sandbox_free(struct sandbox *sandbox);
+void            sandbox_free_linear_memory(struct sandbox *sandbox);
 void            sandbox_main(struct sandbox *sandbox);
 int             sandbox_parse_http_request(struct sandbox *sandbox, size_t length);
 

runtime/src/sandbox.c

@@ -484,6 +484,17 @@ err:
 	goto done;
 }
 
+/**
+ * Free Linear Memory, leaving stack in place
+ * @param sandbox
+ **/
+void
+sandbox_free_linear_memory(struct sandbox *sandbox)
+{
+	int rc = munmap(sandbox->linear_memory_start, SBOX_MAX_MEM + PAGE_SIZE);
+	if (rc == -1) panic("sandbox_free_linear_memory - munmap failed\n");
+}
+
 /**
  * Free stack and heap resources.. also any I/O handles.
  * @param sandbox

runtime/src/worker_thread.c

@@ -263,8 +263,7 @@ worker_thread_on_sandbox_exit(struct sandbox *exiting_sandbox)
 
 	/* Because the stack is still in use, only unmap linear memory and defer free resources until "main
 	function execution" */
-	int rc = munmap(exiting_sandbox->linear_memory_start, SBOX_MAX_MEM + PAGE_SIZE);
+	sandbox_free_linear_memory(exiting_sandbox);
-	if (rc == -1) perror("worker_thread_on_sandbox_exit - munmap failed\n");
 
 	/* TODO: I do not understand when software interrupts must be disabled? */
 	software_interrupt_disable();