1 files changed, 109 insertions, 0 deletions
diff --git a/libwmc/src/errors.c b/libwmc/src/errors.c
new file mode 100644
index 00000000..a1d87ba1
--- /dev/null
+++ b/libwmc/src/errors.c
@@ -0,0 +1,109 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * Copyright (C) 2011 Red Hat, Inc.
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "errors.h"
+#include <stdlib.h>
+#include <string.h>
+
+WmcError *
+wmc_error_new (u_int32_t domain,
+               u_int32_t code,
+               const char *format,
+               ...)
+{
+    WmcError *error;
+    va_list args;
+    int n;
+
+    wmc_return_val_if_fail (format != NULL, NULL);
+    wmc_return_val_if_fail (format[0] != '\0', NULL);
+
+    error = malloc (sizeof (WmcError));
+    wmc_assert (error != NULL);
+
+    error->domain = domain;
+    error->code = code;
+
+    va_start (args, format);
+    n = vasprintf (&error->message, format, args);
+    va_end (args);
+
+    if (n < 0) {
+        free (error);
+        return NULL;
+    }
+
+    return error;
+}
+
+void
+wmc_error_set (WmcError **error,
+               u_int32_t domain,
+               u_int32_t code,
+               const char *format,
+               ...)
+{
+    va_list args;
+    int n;
+
+    if (error == NULL)
+        return;
+    wmc_return_if_fail (*error == NULL);
+    wmc_return_if_fail (format[0] != '\0');
+
+    *error = malloc (sizeof (WmcError));
+    wmc_assert (*error != NULL);
+
+    (*error)->domain = domain;
+    (*error)->code = code;
+
+    va_start (args, format);
+    n = vasprintf (&(*error)->message, format, args);
+    va_end (args);
+
+    if (n < 0) {
+        free (*error);
+        *error = NULL;
+    }
+}
+
+static void
+free_error (WmcError *error)
+{
+    if (error) {
+        if (error->message)
+            free (error->message);
+        memset (error, 0, sizeof (*error));
+        free (error);
+    }
+}
+
+void
+wmc_clear_error (WmcError **error)
+{
+    if (error) {
+        free_error (*error);
+        *error = NULL;
+    }
+}
+
+void
+wmc_free_error (WmcError *error)
+{
+    free_error (error);
+}
+