[glib] Cleanups to debug env var handling

[Matthias Clasen <matthiasc src gnome org>]

commit 599f254066beb3bdad1d4fb70a7afd28c45d7634
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Nov 12 19:13:44 2011 -0500

    Cleanups to debug env var handling

 glib/glib-init.c |    6 +++---
 glib/gslice.c    |   48 ++++++++++++++++++------------------------------
 gobject/gtype.c  |   13 +++++--------
 3 files changed, 26 insertions(+), 41 deletions(-)
---
diff --git a/glib/glib-init.c b/glib/glib-init.c
index eb6d8e8..b86074b 100644
--- a/glib/glib-init.c
+++ b/glib/glib-init.c
@@ -108,10 +108,10 @@ g_parse_debug_string  (const gchar     *string,
   if (!strcasecmp (string, "help"))
     {
       /* using stdio directly for the reason stated above */
-      fprintf (stderr, "Supported debug values: ");
+      fprintf (stderr, "Supported debug values:");
       for (i = 0; i < nkeys; i++)
        fprintf (stderr, " %s", keys[i].key);
-      fprintf (stderr, "\n");
+      fprintf (stderr, " all help\n");
     }
   else
     {
@@ -123,7 +123,7 @@ g_parse_debug_string  (const gchar     *string,
        {
          q = strpbrk (p, ":;, \t");
          if (!q)
-           q = p + strlen(p);
+           q = p + strlen (p);
 
          if (debug_key_matches ("all", p, q - p))
            {
diff --git a/glib/gslice.c b/glib/gslice.c
index 396ce48..2687e27 100644
--- a/glib/gslice.c
+++ b/glib/gslice.c
@@ -279,40 +279,28 @@ g_slice_get_config_state (GSliceConfig ckey,
     }
 }
 
-static const gchar *
-getenv_nomalloc (const gchar *variable,
-                 gchar        buffer[1024])
-{
-  const gchar *retval = getenv (variable);
-  if (retval && retval[0])
-    {
-      gint l = strlen (retval);
-      if (l < 1024)
-        {
-          strncpy (buffer, retval, l);
-          buffer[l] = 0;
-          return buffer;
-        }
-    }
-  return NULL;
-}
-
 static void
 slice_config_init (SliceConfig *config)
 {
-  /* don't use g_malloc/g_message here */
-  gchar buffer[1024];
-  const gchar *val = getenv_nomalloc ("G_SLICE", buffer);
-  const GDebugKey keys[] = {
-    { "always-malloc", 1 << 0 },
-    { "debug-blocks",  1 << 1 },
-  };
-  gint flags = !val ? 0 : g_parse_debug_string (val, keys, G_N_ELEMENTS (keys));
+  const gchar *val;
+
   *config = slice_config;
-  if (flags & (1 << 0))         /* always-malloc */
-    config->always_malloc = TRUE;
-  if (flags & (1 << 1))         /* debug-blocks */
-    config->debug_blocks = TRUE;
+
+  val = getenv ("G_SLICE");
+  if (val != NULL)
+    {
+      gint flags;
+      const GDebugKey keys[] = {
+        { "always-malloc", 1 << 0 },
+        { "debug-blocks",  1 << 1 },
+      };
+
+      flags = g_parse_debug_string (val, keys, G_N_ELEMENTS (keys));
+      if (flags & (1 << 0))
+        config->always_malloc = TRUE;
+      if (flags & (1 << 1))
+        config->debug_blocks = TRUE;
+    }
 }
 
 static void
diff --git a/gobject/gtype.c b/gobject/gtype.c
index 3d79f7b..a0e9106 100644
--- a/gobject/gtype.c
+++ b/gobject/gtype.c
@@ -4290,15 +4290,12 @@ g_type_init_with_debug_flags (GTypeDebugFlags debug_flags)
   env_string = g_getenv ("GOBJECT_DEBUG");
   if (env_string != NULL)
     {
-      static GDebugKey debug_keys[] = {
-	{ "objects", G_TYPE_DEBUG_OBJECTS },
-	{ "signals", G_TYPE_DEBUG_SIGNALS },
+      GDebugKey debug_keys[] = {
+        { "objects", G_TYPE_DEBUG_OBJECTS },
+        { "signals", G_TYPE_DEBUG_SIGNALS },
       };
-      
-      _g_type_debug_flags |= g_parse_debug_string (env_string,
-						   debug_keys,
-						   sizeof (debug_keys) / sizeof (debug_keys[0]));
-      env_string = NULL;
+
+      _g_type_debug_flags |= g_parse_debug_string (env_string, debug_keys, G_N_ELEMENTS (debug_keys));
     }
   
   /* quarks */