Re: [libvirt] [PATCH 3/4] Introduce virXMLSaveFile as a wrapper for virFileRewrite

Every time we write XML into a file we call virEmitXMLWarning to write a warning that the file is automatically generated. virXMLSaveFile simplifies this into a single step and makes rewriting existing XML file safe by using virFileRewrite internally. --- src/conf/domain_conf.c | 25 +++++++++++++++++++++---- src/libvirt_private.syms | 1 + src/util/util.c | 4 +++- src/util/xml.c | 36 ++++++++++++++++++++++++++++++++++++ src/util/xml.h | 5 +++++ 5 files changed, 66 insertions(+), 5 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c

- if ((fd = open(configFile, + if (virAsprintf(&newfile, "%s.new", configFile)< 0) { + virReportOOMError(); + goto cleanup; + } + + if ((fd = open(newfile, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR ))< 0) {

@@ -11121,6 +11134,10 @@ int virDomainSaveXML(const char *configDir, cleanup: VIR_FORCE_CLOSE(fd); + if (newfile) { + unlink(newfile);