a-game

commit a112d920bd70eca35f43501c766a4555e7136c74
parent 64a46e1ed61f9fb674ff5c1e7346d17c42cb0f5d
Author: Amin Mesbah <dev@aminmesbah.com>
Date:   Tue, 16 Jul 2019 20:27:39 -0700

Handle JS file loading failure

Diffstat:
M
src/platform_wasm.c
 | 
16
+++++++++++++---

1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/src/platform_wasm.c b/src/platform_wasm.c
@@ -128,11 +128,21 @@ PLATFORM_READ_ENTIRE_FILE(wasm_read_entire_file)
         *out_num_bytes = num_bytes_in_file;
     }
 
+    size_t fail_reversion_marker = mem_st_get_marker(a);
     u8 *buf = mem_st_alloc_buffer(a, u8, num_bytes_in_file + 1);
     assert(buf);
 
-    js_read_entire_file((i32)file_path, str_length(file_path), buf);
-    buf[num_bytes_in_file] = '\0';
-    wasm_print("Succeeded in reading file.");
+    bool success = js_read_entire_file((i32)file_path, str_length(file_path), buf);
+    if (success)
+    {
+        buf[num_bytes_in_file] = '\0';
+        wasm_print("Succeeded in reading file.");
+    }
+    else
+    {
+        mem_st_free_to_marker(a, fail_reversion_marker);
+        buf = NULL;
+        wasm_print("Failed to read file.");
+    }
     return buf;
 }