Code cleanup.

[ruby-eet.git] / ext / ext.c

diff --git a/ext/ext.c b/ext/ext.c
index 94df85d4e8ff2d601c580ca91531228201331326..485bfc6062b9da6106912f5a98b612c5883b0e5e 100644 (file)
--- a/ext/ext.c
+++ b/ext/ext.c
@@ -1,5 +1,5 @@
 /*
- * $Id: ext.c 28 2005-04-11 20:58:23Z tilman $
+ * $Id: ext.c 29 2005-04-12 17:07:48Z tilman $
  *
  * Copyright (c) 2005 Tilman Sauerbeck (tilman at code-monkey de)
  *
@@ -33,6 +33,10 @@
                        1, INT2FIX (0)) == Qtrue) \
                rb_raise (rb_eArgError, "key must not contain binary zeroes");
 
+#define CHECK_CLOSED(ef) \
+       if (!*(ef)) \
+               rb_raise (rb_eIOError, "closed stream");
+
 static VALUE c_close (VALUE self);
 
 static void
@@ -152,15 +156,12 @@ c_close (VALUE self)
        Eet_File **ef = NULL;
 
        Data_Get_Struct (self, Eet_File *, ef);
+       CHECK_CLOSED (ef);
 
-       if (!*ef)
-               rb_raise (rb_eIOError, "closed stream");
-       else {
-               eet_close (*ef);
-               *ef = NULL;
+       eet_close (*ef);
+       *ef = NULL;
 
-               eet_shutdown ();
-       }
+       eet_shutdown ();
 
        return self;
 }
@@ -181,9 +182,7 @@ c_list (int argc, VALUE *argv, VALUE self)
        int i, count = 0;
 
        Data_Get_Struct (self, Eet_File *, ef);
-
-       if (!*ef)
-               rb_raise (rb_eIOError, "closed stream");
+       CHECK_CLOSED (ef);
 
        switch (eet_mode_get (*ef)) {
                case EET_FILE_MODE_READ:
@@ -225,9 +224,7 @@ c_delete (VALUE self, VALUE key)
        char *tmp;
 
        Data_Get_Struct (self, Eet_File *, ef);
-
-       if (!*ef)
-               rb_raise (rb_eIOError, "closed stream");
+       CHECK_CLOSED (ef);
 
        CHECK_KEY (key);
 
@@ -256,9 +253,7 @@ c_read (VALUE self, VALUE key)
        int size = 0;
 
        Data_Get_Struct (self, Eet_File *, ef);
-
-       if (!*ef)
-               rb_raise (rb_eIOError, "closed stream");
+       CHECK_CLOSED (ef);
 
        CHECK_KEY (key);
 
@@ -291,9 +286,7 @@ c_write (int argc, VALUE *argv, VALUE self)
        int n;
 
        Data_Get_Struct (self, Eet_File *, ef);
-
-       if (!*ef)
-               rb_raise (rb_eIOError, "closed stream");
+       CHECK_CLOSED (ef);
 
        rb_scan_args (argc, argv, "21", &key, &buf, &comp);
 
@@ -333,9 +326,7 @@ c_read_image (VALUE self, VALUE key)
        int w = 0, h = 0, has_alpha = 0, level = 0, quality = 0, lossy = 0;
 
        Data_Get_Struct (self, Eet_File *, ef);
-
-       if (!*ef)
-               rb_raise (rb_eIOError, "closed stream");
+       CHECK_CLOSED (ef);
 
        CHECK_KEY (key);
 
@@ -383,9 +374,7 @@ c_write_image (int argc, VALUE *argv, VALUE self)
        int n, lossy = 0, level = 9, quality = 100;
 
        Data_Get_Struct (self, Eet_File *, ef);
-
-       if (!*ef)
-               rb_raise (rb_eIOError, "closed stream");
+       CHECK_CLOSED (ef);
 
        rb_scan_args (argc, argv, "42", &key, &buf, &w, &h, &has_alpha,
                      &comp);