1 files changed, 31 insertions, 0 deletions
diff --git a/prb_os_io.c b/prb_os_io.c
new file mode 100644
index 0000000..d35b73f
--- /dev/null
+++ b/prb_os_io.c
@@ -0,0 +1,31 @@
+Str8 str8_read_entire_file(Arena *arena, Str8 filename)
+{
+	/* TODO(pryazha): Make it crossplatform already */
+	Assert(filename.ptr);
+	Assert(filename.length);
+
+	Str8 result = {0};
+	Arena *tmp = arena_alloc(0);
+
+	char *cfilename = str8_to_cstr(tmp, filename);
+
+	FILE *f = fopen(cfilename, "rb");
+	if (!f)
+		return result;
+
+	fseek(f, 0, SEEK_END);
+	U64 size = ftell(f);
+	rewind(f);
+
+	U8 *mem = arena_push(arena, size+1);
+	fread(mem, size, 1, f);
+	fclose(f);
+
+	mem[size] = 0;
+
+	result = str8(mem, size);
+
+	arena_release(tmp);
+
+	return result;
+}