static void
virLogHandlerLogFileFree(virLogHandlerLogFilePtr file)
{
if (!file)
return;
VIR_FORCE_CLOSE(file->pipefd);
virRotatingFileWriterFree(file->file);
if (file->watch != -1)
virEventRemoveHandle(file->watch);
VIR_FREE(file);
}
/**
* virRotatingFileWriterNew
* @path: the base path for files
* @maxlen: the maximum number of bytes to write before rollover
* @maxbackup: number of backup files to keep when rolling over
* @trunc: whether to truncate the current files when opening
* @mode: the file mode to use for creating new files
*
* Create a new object for writing data to a file with
* automatic rollover. If @maxbackup is zero, no backup
* files will be created. The primary file will just get
* truncated and reopened.
*
* The files will never exceed @maxlen bytes in size,
* but may be rolled over before they reach this size
* in order to avoid splitting lines
*/
virRotatingFileWriterPtr
virRotatingFileWriterNew(const char *path,
off_t maxlen,
size_t maxbackup,
bool trunc,
mode_t mode)
{
virRotatingFileWriterPtr file;
if (VIR_ALLOC(file) < 0)
goto error;
if (VIR_STRDUP(file->basepath, path) < 0)
goto error;
if (maxbackup > VIR_MAX_MAX_BACKUP) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Max backup %zu must be less than or equal to %d"),
maxbackup, VIR_MAX_MAX_BACKUP);
goto error;
}
file->mode = mode;
file->maxbackup = maxbackup;
file->maxlen = maxlen;
if (trunc &&
virRotatingFileWriterDelete(file) < 0)
goto error;
if (!(file->entry = virRotatingFileWriterEntryNew(file->basepath,
mode)))
goto error;
return file;
error:
virRotatingFileWriterFree(file);
return NULL;
}
