render / rpms / libvirt

Forked from rpms/libvirt 9 months ago
Clone
c313de
From b9490d128b1a65d4d1ca273ddd54c696fa62ad73 Mon Sep 17 00:00:00 2001
c313de
Message-Id: <b9490d128b1a65d4d1ca273ddd54c696fa62ad73@dist-git>
c313de
From: Peter Krempa <pkrempa@redhat.com>
c313de
Date: Fri, 21 Jun 2019 09:26:01 +0200
c313de
Subject: [PATCH] util: string: Introduce macro for automatic string lists
c313de
MIME-Version: 1.0
c313de
Content-Type: text/plain; charset=UTF-8
c313de
Content-Transfer-Encoding: 8bit
c313de
c313de
Similar to VIR_AUTOPTR, VIR_AUTOSTRINGLIST defines a list of strings
c313de
which will be freed if the pointer is leaving scope.
c313de
c313de
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
c313de
Reviewed-by: Erik Skultety <eskultet@redhat.com>
c313de
(cherry picked from commit daefda165b28b399478137c75b5466f865c65be5)
c313de
c313de
https://bugzilla.redhat.com/show_bug.cgi?id=1697627
c313de
c313de
Conflicts:
c313de
	src/util/virstring.h
c313de
            - different header file guard
c313de
            - no AUTOPTR for string lists
c313de
c313de
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
c313de
Message-Id: <7f1e7edf9c9a096fde1a2adf37090f8190e99be2.1561068591.git.jdenemar@redhat.com>
c313de
Reviewed-by: Ján Tomko <jtomko@redhat.com>
c313de
---
c313de
 src/libvirt_private.syms |  1 +
c313de
 src/util/virstring.c     | 10 ++++++++++
c313de
 src/util/virstring.h     | 10 ++++++++++
c313de
 3 files changed, 21 insertions(+)
c313de
c313de
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
c313de
index a20e0593f0..06374deaae 100644
c313de
--- a/src/libvirt_private.syms
c313de
+++ b/src/libvirt_private.syms
c313de
@@ -2923,6 +2923,7 @@ virStringHasControlChars;
c313de
 virStringIsEmpty;
c313de
 virStringIsPrintable;
c313de
 virStringListAdd;
c313de
+virStringListAutoFree;
c313de
 virStringListFree;
c313de
 virStringListFreeCount;
c313de
 virStringListGetFirstWithPrefix;
c313de
diff --git a/src/util/virstring.c b/src/util/virstring.c
c313de
index 15f367af7c..0f13b6c664 100644
c313de
--- a/src/util/virstring.c
c313de
+++ b/src/util/virstring.c
c313de
@@ -332,6 +332,16 @@ void virStringListFree(char **strings)
c313de
 }
c313de
 
c313de
 
c313de
+void virStringListAutoFree(char ***strings)
c313de
+{
c313de
+    if (!*strings)
c313de
+        return;
c313de
+
c313de
+    virStringListFree(*strings);
c313de
+    *strings = NULL;
c313de
+}
c313de
+
c313de
+
c313de
 /**
c313de
  * virStringListFreeCount:
c313de
  * @strings: array of strings to free
c313de
diff --git a/src/util/virstring.h b/src/util/virstring.h
c313de
index 607ae66e99..e68b9eec79 100644
c313de
--- a/src/util/virstring.h
c313de
+++ b/src/util/virstring.h
c313de
@@ -53,6 +53,7 @@ int virStringListCopy(char ***dst,
c313de
                       const char **src);
c313de
 
c313de
 void virStringListFree(char **strings);
c313de
+void virStringListAutoFree(char ***strings);
c313de
 void virStringListFreeCount(char **strings,
c313de
                             size_t count);
c313de
 
c313de
@@ -309,4 +310,13 @@ int virStringParsePort(const char *str,
c313de
                        unsigned int *port)
c313de
     ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
c313de
 
c313de
+/**
c313de
+ * VIR_AUTOSTRINGLIST:
c313de
+ *
c313de
+ * Declares a NULL-terminated list of strings which will be automatically freed
c313de
+ * when the pointer goes out of scope.
c313de
+ */
c313de
+# define VIR_AUTOSTRINGLIST \
c313de
+        __attribute__((cleanup(virStringListAutoFree))) char **
c313de
+
c313de
 #endif /* __VIR_STRING_H__ */
c313de
-- 
c313de
2.22.0
c313de