diff options
Diffstat (limited to 'tools/libxen/include/xen/api/xen_vbd_metrics.h')
-rw-r--r-- | tools/libxen/include/xen/api/xen_vbd_metrics.h | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/tools/libxen/include/xen/api/xen_vbd_metrics.h b/tools/libxen/include/xen/api/xen_vbd_metrics.h new file mode 100644 index 0000000000..1cb1a2bc85 --- /dev/null +++ b/tools/libxen/include/xen/api/xen_vbd_metrics.h @@ -0,0 +1,198 @@ +/* + * Copyright (c) 2006-2007, XenSource Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef XEN_VBD_METRICS_H +#define XEN_VBD_METRICS_H + +#include <xen/api/xen_common.h> +#include <xen/api/xen_vbd_metrics_decl.h> + + +/* + * The VBD_metrics class. + * + * The metrics associated with a virtual block device. + */ + + +/** + * Free the given xen_vbd_metrics. The given handle must have been + * allocated by this library. + */ +extern void +xen_vbd_metrics_free(xen_vbd_metrics vbd_metrics); + + +typedef struct xen_vbd_metrics_set +{ + size_t size; + xen_vbd_metrics *contents[]; +} xen_vbd_metrics_set; + +/** + * Allocate a xen_vbd_metrics_set of the given size. + */ +extern xen_vbd_metrics_set * +xen_vbd_metrics_set_alloc(size_t size); + +/** + * Free the given xen_vbd_metrics_set. The given set must have been + * allocated by this library. + */ +extern void +xen_vbd_metrics_set_free(xen_vbd_metrics_set *set); + + +typedef struct xen_vbd_metrics_record +{ + xen_vbd_metrics handle; + char *uuid; + double io_read_kbs; + double io_write_kbs; + time_t last_updated; +} xen_vbd_metrics_record; + +/** + * Allocate a xen_vbd_metrics_record. + */ +extern xen_vbd_metrics_record * +xen_vbd_metrics_record_alloc(void); + +/** + * Free the given xen_vbd_metrics_record, and all referenced values. + * The given record must have been allocated by this library. + */ +extern void +xen_vbd_metrics_record_free(xen_vbd_metrics_record *record); + + +typedef struct xen_vbd_metrics_record_opt +{ + bool is_record; + union + { + xen_vbd_metrics handle; + xen_vbd_metrics_record *record; + } u; +} xen_vbd_metrics_record_opt; + +/** + * Allocate a xen_vbd_metrics_record_opt. + */ +extern xen_vbd_metrics_record_opt * +xen_vbd_metrics_record_opt_alloc(void); + +/** + * Free the given xen_vbd_metrics_record_opt, and all referenced + * values. The given record_opt must have been allocated by this library. + */ +extern void +xen_vbd_metrics_record_opt_free(xen_vbd_metrics_record_opt *record_opt); + + +typedef struct xen_vbd_metrics_record_set +{ + size_t size; + xen_vbd_metrics_record *contents[]; +} xen_vbd_metrics_record_set; + +/** + * Allocate a xen_vbd_metrics_record_set of the given size. + */ +extern xen_vbd_metrics_record_set * +xen_vbd_metrics_record_set_alloc(size_t size); + +/** + * Free the given xen_vbd_metrics_record_set, and all referenced + * values. The given set must have been allocated by this library. + */ +extern void +xen_vbd_metrics_record_set_free(xen_vbd_metrics_record_set *set); + + + +typedef struct xen_vbd_metrics_record_opt_set +{ + size_t size; + xen_vbd_metrics_record_opt *contents[]; +} xen_vbd_metrics_record_opt_set; + +/** + * Allocate a xen_vbd_metrics_record_opt_set of the given size. + */ +extern xen_vbd_metrics_record_opt_set * +xen_vbd_metrics_record_opt_set_alloc(size_t size); + +/** + * Free the given xen_vbd_metrics_record_opt_set, and all referenced + * values. The given set must have been allocated by this library. + */ +extern void +xen_vbd_metrics_record_opt_set_free(xen_vbd_metrics_record_opt_set *set); + + +/** + * Get a record containing the current state of the given VBD_metrics. + */ +extern bool +xen_vbd_metrics_get_record(xen_session *session, xen_vbd_metrics_record **result, xen_vbd_metrics vbd_metrics); + + +/** + * Get a reference to the VBD_metrics instance with the specified UUID. + */ +extern bool +xen_vbd_metrics_get_by_uuid(xen_session *session, xen_vbd_metrics *result, char *uuid); + + +/** + * Get the uuid field of the given VBD_metrics. + */ +extern bool +xen_vbd_metrics_get_uuid(xen_session *session, char **result, xen_vbd_metrics vbd_metrics); + + +/** + * Get the io/read_kbs field of the given VBD_metrics. + */ +extern bool +xen_vbd_metrics_get_io_read_kbs(xen_session *session, double *result, xen_vbd_metrics vbd_metrics); + + +/** + * Get the io/write_kbs field of the given VBD_metrics. + */ +extern bool +xen_vbd_metrics_get_io_write_kbs(xen_session *session, double *result, xen_vbd_metrics vbd_metrics); + + +/** + * Get the last_updated field of the given VBD_metrics. + */ +extern bool +xen_vbd_metrics_get_last_updated(xen_session *session, time_t *result, xen_vbd_metrics vbd_metrics); + + +/** + * Return a list of all the VBD_metrics instances known to the system. + */ +extern bool +xen_vbd_metrics_get_all(xen_session *session, struct xen_vbd_metrics_set **result); + + +#endif |