[libvirt] [PATCH 4/8] Add new API virDomainGetBlockIoThrottle
Support virDomainGetBlockIoThrottle to src/libvirt.c
Signed-off-by: Zhi Yong Wu <wuzhy(a)linux.vnet.ibm.com>
Signed-off-by: Lei Li <lilei(a)linux.vnet.ibm.com>
---
include/libvirt/libvirt.h.in | 5 +++
src/driver.h | 6 ++++
src/libvirt.c | 57 ++++++++++++++++++++++++++++++++++++++++++
src/libvirt_public.syms | 1 +
4 files changed, 69 insertions(+), 0 deletions(-)
diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
index ff2926e..a844f61 100644
--- a/include/libvirt/libvirt.h.in
+++ b/include/libvirt/libvirt.h.in
@@ -1592,6 +1592,11 @@ virDomainSetBlockIoThrottle(virDomainPtr dom,
virDomainBlockIoThrottleInfoPtr info,
unsigned int flags);
+int
+virDomainGetBlockIoThrottle(virDomainPtr dom,
+ const char *disk,
+ virDomainBlockIoThrottleInfoPtr reply,
+ unsigned int flags);
/*
* NUMA support
diff --git a/src/driver.h b/src/driver.h
index ffa71c8..936fc09 100644
--- a/src/driver.h
+++ b/src/driver.h
@@ -745,6 +745,11 @@ typedef int
virDomainBlockIoThrottleInfoPtr info,
unsigned int flags);
+typedef int
+ (*virDrvDomainGetBlockIoThrottle)(virDomainPtr dom,
+ const char *disk,
+ virDomainBlockIoThrottleInfoPtr reply,
+ unsigned int flags);
/**
* _virDriver:
@@ -904,6 +909,7 @@ struct _virDriver {
virDrvDomainBlockJobSetSpeed domainBlockJobSetSpeed;
virDrvDomainBlockPull domainBlockPull;
virDrvDomainSetBlockIoThrottle domainSetBlockIoThrottle;
+ virDrvDomainGetBlockIoThrottle domainGetBlockIoThrottle;
};
typedef int
diff --git a/src/libvirt.c b/src/libvirt.c
index dfc74fb..cf6ce38 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -17026,3 +17026,60 @@ error:
return -1;
}
+/**
+ * virDomainGetBlockIoThrottle:
+ * @dom: pointer to domain object
+ * @disk: Fully-qualified disk name
+ * @reply: specify block I/O info in bytes
+ * @flags: indicate if it set or display block I/O limits info
+ *
+ * This function is mainly to enable Block I/O throttling function in libvirt.
+ * It is used to get the block I/O throttling setting for specified domain.
+ *
+ * Returns 0 if the operation has started, -1 on failure.
+ */
+
+int virDomainGetBlockIoThrottle(virDomainPtr dom,
+ const char *disk,
+ virDomainBlockIoThrottleInfoPtr reply,
+ unsigned int flags)
+{
+ virConnectPtr conn;
+
+ VIR_DOMAIN_DEBUG(dom, "disk=%p, reply=%p, flags=%x",
+ disk, reply, flags);
+
+ virResetLastError();
+
+ if (!VIR_IS_CONNECTED_DOMAIN (dom)) {
+ virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__);
+ virDispatchError(NULL);
+ return -1;
+ }
+ conn = dom->conn;
+
+ if (dom->conn->flags & VIR_CONNECT_RO) {
+ virLibDomainError(VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+ goto error;
+ }
+
+ if (!disk) {
+ virLibDomainError(VIR_ERR_INVALID_ARG, __FUNCTION__);
+ goto error;
+ }
+
+ if (conn->driver->domainGetBlockIoThrottle) {
+ int ret;
+ ret = conn->driver->domainGetBlockIoThrottle(dom, disk, reply, flags);
+ if (ret < 0)
+ goto error;
+ return ret;
+ }
+
+ virLibDomainError(VIR_ERR_NO_SUPPORT, __FUNCTION__);
+
+error:
+ virDispatchError(dom->conn);
+ return -1;
+
+}
diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms
index ce29978..3acfa6c 100644
--- a/src/libvirt_public.syms
+++ b/src/libvirt_public.syms
@@ -496,6 +496,7 @@ LIBVIRT_0.9.7 {
virDomainSnapshotListChildrenNames;
virDomainSnapshotNumChildren;
virDomainSetBlockIoThrottle;
+ virDomainGetBlockIoThrottle;
} LIBVIRT_0.9.5;
# .... define new API here using predicted next version number ....
--
1.7.1