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[libvirt] [libvirt-glib 1/2] Add gvir_set_error[_literal]



They mirror g_set_error[_literal] functionality but append the
error reported by libvirt to the error message.
---
 libvirt-glib/libvirt-glib-error.c |   49 +++++++++++++++++++++++++++++++++++++
 libvirt-glib/libvirt-glib-error.h |   11 ++++++++
 libvirt-glib/libvirt-glib.sym     |    2 +
 3 files changed, 62 insertions(+), 0 deletions(-)

diff --git a/libvirt-glib/libvirt-glib-error.c b/libvirt-glib/libvirt-glib-error.c
index b4d1f93..1fd32f0 100644
--- a/libvirt-glib/libvirt-glib-error.c
+++ b/libvirt-glib/libvirt-glib-error.c
@@ -126,3 +126,52 @@ GError *gvir_error_new_valist(GQuark domain,
 
     return err;
 }
+
+/**
+ * gvir_set_error: (skip)
+ * @error: a return location for a #GError, or #NULL
+ * @domain: error domain
+ * @code: error code
+ * @format: printf()-style format for error message
+ * @Varargs: parameters for message format
+ *
+ * Does nothing if @error is #NULL; if @error is non-#NULL, then * error
+ * must be #NULL. A new #GError is created and assigned to * error 
+ */
+void gvir_set_error(GError **error, GQuark domain, gint code,
+                    const gchar *format, ...)
+{
+    va_list args;
+
+    if (error == NULL) {
+        return;
+    }
+
+    va_start(args, format);
+    *error = gvir_error_new_valist(domain, code, format, args);
+    va_end(args);
+}
+
+/**
+ * gvir_set_error_literal: (skip)
+ * @error: a return location for a #GError, or #NULL
+ * @domain: error domain
+ * @code: error code
+ * @message: error message
+ *
+ * Does nothing if @error is #NULL; if @error is non-#NULL, then * error
+ * must be #NULL. A new #GError is created and assigned to * error 
+ * Unlike g_set_error(), message is not a printf()-style format string. Use
+ * this function if message contains text you don't have control over, that
+ * could include printf() escape sequences.
+ */
+
+void gvir_set_error_literal(GError **error, GQuark domain, gint code,
+                            const gchar *message)
+{
+    if (error == NULL) {
+        return;
+    }
+
+    *error = gvir_error_new_literal(domain, code, message);
+}
diff --git a/libvirt-glib/libvirt-glib-error.h b/libvirt-glib/libvirt-glib-error.h
index cfb5b95..aa581e5 100644
--- a/libvirt-glib/libvirt-glib-error.h
+++ b/libvirt-glib/libvirt-glib-error.h
@@ -42,6 +42,17 @@ GError *gvir_error_new_valist(GQuark domain,
                               const gchar *format,
                               va_list args);
 
+void gvir_set_error(GError **error,
+                    GQuark domain,
+                    gint code,
+                    const gchar *format,
+                    ...);
+
+void gvir_set_error_literal(GError **error,
+                            GQuark domain,
+                            gint code,
+                            const gchar *message);
+
 G_END_DECLS
 
 #endif /* __LIBVIRT_GLIB_ERROR_H__ */
diff --git a/libvirt-glib/libvirt-glib.sym b/libvirt-glib/libvirt-glib.sym
index cd41cb9..dca7dbb 100644
--- a/libvirt-glib/libvirt-glib.sym
+++ b/libvirt-glib/libvirt-glib.sym
@@ -7,6 +7,8 @@ LIBVIRT_GLIB_0.0.1 {
 	gvir_error_new;
 	gvir_error_new_valist;
 	gvir_error_new_literal;
+	gvir_set_error;
+	gvir_set_error_literal;
 
   local:
         *;
-- 
1.7.7.3


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