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Add virDirOpenIfExists
Just like virDirOpen, but it returns 0 without reporting an error on ENOENT.
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parent
e81de04c10
commit
941ccbc174
@ -1496,6 +1496,7 @@ virBuildPathInternal;
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virDirClose;
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virDirCreate;
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virDirOpen;
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virDirOpenIfExists;
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virDirRead;
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virFileAbsPath;
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virFileAccessibleAs;
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@ -2723,10 +2723,12 @@ virFileRemove(const char *path,
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#endif /* WIN32 */
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static int
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virDirOpenInternal(DIR **dirp, const char *name)
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virDirOpenInternal(DIR **dirp, const char *name, bool ignoreENOENT)
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{
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*dirp = opendir(name);
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if (!*dirp) {
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if (ignoreENOENT && errno == ENOENT)
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return 0;
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virReportSystemError(errno, _("cannot open directory '%s'"), name);
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return -1;
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}
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@ -2744,7 +2746,22 @@ virDirOpenInternal(DIR **dirp, const char *name)
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int
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virDirOpen(DIR **dirp, const char *name)
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{
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return virDirOpenInternal(dirp, name);
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return virDirOpenInternal(dirp, name, false);
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}
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/**
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* virDirOpenIfExists
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* @dirp: directory stream
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* @name: path of the directory
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*
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* Returns 1 on success.
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* If opendir returns ENOENT, 0 is returned without reporting an error.
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* On other errors, -1 is returned and an error is reported.
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*/
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int
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virDirOpenIfExists(DIR **dirp, const char *name)
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{
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return virDirOpenInternal(dirp, name, true);
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}
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/**
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@ -232,6 +232,8 @@ int virDirCreate(const char *path, mode_t mode, uid_t uid, gid_t gid,
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unsigned int flags) ATTRIBUTE_RETURN_CHECK;
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int virDirOpen(DIR **dirp, const char *dirname)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
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int virDirOpenIfExists(DIR **dirp, const char *dirname)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
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int virDirRead(DIR *dirp, struct dirent **ent, const char *dirname)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
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void virDirClose(DIR **dirp)
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