Give reason while file open failed.

Review URL: https://codereview.chromium.org/1326743004
armansito · Sep 2, 2015 · 0881b95 · 0881b95
1 parent 5a42c33
commit 0881b95
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/ports/SkOSFile_stdio.cpp b/src/ports/SkOSFile_stdio.cpp
@@ -32,7 +32,12 @@ SkFILE* sk_fopen(const char path[], SkFILE_Flags flags) {
 
     //TODO: on Windows fopen is just ASCII or the current code page,
     //convert to utf16 and use _wfopen
-    return (SkFILE*)::fopen(path, perm);
+    SkFILE* file = (SkFILE*)::fopen(path, perm);
+    if (nullptr == file && (flags & kWrite_SkFILE_Flag)) {
+        SkDEBUGF(("sk_fopen: fopen(\"%s\", \"%s\") returned NULL (errno:%d): %s\n",
+                  path, perm, errno, strerror(errno)));
+    }
+    return file;
 }
 
 char* sk_fgets(char* str, int size, SkFILE* f) {