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[libvirt] [PATCH 2/6] libvirt: Implements virDomainSetBlkioParameters and virDomainGetBlkioParameters and initialization



Implements virDomainSetBlkioParameters and virDomainGetBlkioParameters and initialization

Signed-off-by: Gui Jianfeng <guijianfeng cn fujitsu com>
---
 src/driver.h               |   14 ++++++
 src/esx/esx_driver.c       |    2 +
 src/libvirt.c              |  108 ++++++++++++++++++++++++++++++++++++++++++++
 src/libvirt_public.syms    |    6 +++
 src/lxc/lxc_driver.c       |    2 +
 src/openvz/openvz_driver.c |    2 +
 src/phyp/phyp_driver.c     |    2 +
 src/qemu/qemu_driver.c     |    2 +
 src/remote/remote_driver.c |    2 +
 src/test/test_driver.c     |    2 +
 src/uml/uml_driver.c       |    2 +
 src/vmware/vmware_driver.c |    2 +
 src/xen/xen_driver.c       |    2 +
 13 files changed, 148 insertions(+), 0 deletions(-)

diff --git a/src/driver.h b/src/driver.h
index 7451004..608efe9 100644
--- a/src/driver.h
+++ b/src/driver.h
@@ -135,6 +135,18 @@ typedef int
         (*virDrvDomainSetMemory)	(virDomainPtr domain,
                                          unsigned long memory);
 typedef int
+        (*virDrvDomainSetBlkioParameters)
+                                        (virDomainPtr domain,
+                                         virBlkioParameterPtr params,
+                                         int nparams,
+                                         unsigned int flags);
+typedef int
+        (*virDrvDomainGetBlkioParameters)
+                                        (virDomainPtr domain,
+                                         virBlkioParameterPtr params,
+                                         int *nparams,
+                                         unsigned int flags);
+typedef int
         (*virDrvDomainSetMemoryParameters)
                                         (virDomainPtr domain,
                                          virMemoryParameterPtr params,
@@ -615,6 +627,8 @@ struct _virDriver {
     virDrvDomainSetMemoryParameters domainSetMemoryParameters;
     virDrvDomainGetMemoryParameters domainGetMemoryParameters;
     virDrvDomainOpenConsole domainOpenConsole;
+    virDrvDomainSetBlkioParameters domainSetBlkioParameters;
+    virDrvDomainGetBlkioParameters domainGetBlkioParameters;
 };
 
 typedef int
diff --git a/src/esx/esx_driver.c b/src/esx/esx_driver.c
index 97f3dbe..38f07bd 100644
--- a/src/esx/esx_driver.c
+++ b/src/esx/esx_driver.c
@@ -4654,6 +4654,8 @@ static virDriver esxDriver = {
     esxDomainSetMemoryParameters,    /* domainSetMemoryParameters */
     esxDomainGetMemoryParameters,    /* domainGetMemoryParameters */
     NULL,                            /* domainOpenConsole */
+    NULL,                            /* domainSetBlkioParameters */
+    NULL,                            /* domainGetBlkioParameters */
 };
 
 
diff --git a/src/libvirt.c b/src/libvirt.c
index f65cc24..b79f3c2 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -2847,6 +2847,114 @@ error:
 }
 
 /**
+ * virDomainSetBlkioParameters:
+ * @domain: pointer to domain object
+ * @params: pointer to blkio parameter objects
+ * @nparams: number of blkio parameter (this value should be same or
+ *          less than the number of parameters supported)
+ * @flags: currently unused, for future extension
+ *
+ * Change the blkio tunables
+ * This function requires privileged access to the hypervisor.
+ *
+ * Returns -1 in case of error, 0 in case of success.
+ */
+int
+virDomainSetBlkioParameters(virDomainPtr domain,
+                             virBlkioParameterPtr params,
+                             int nparams, unsigned int flags)
+{
+    virConnectPtr conn;
+
+    VIR_DOMAIN_DEBUG(domain, "params=%p, nparams=%d, flags=%u",
+                     params, nparams, flags);
+
+    virResetLastError();
+
+    if (!VIR_IS_CONNECTED_DOMAIN(domain)) {
+        virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__);
+        virDispatchError(NULL);
+        return -1;
+    }
+    if (domain->conn->flags & VIR_CONNECT_RO) {
+        virLibDomainError(VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        goto error;
+    }
+    if ((nparams <= 0) || (params == NULL)) {
+        virLibDomainError(VIR_ERR_INVALID_ARG, __FUNCTION__);
+        goto error;
+    }
+    conn = domain->conn;
+
+    if (conn->driver->domainSetBlkioParameters) {
+        int ret;
+        ret = conn->driver->domainSetBlkioParameters (domain, params, nparams, flags);
+        if (ret < 0)
+            goto error;
+        return ret;
+    }
+
+    virLibConnError(VIR_ERR_NO_SUPPORT, __FUNCTION__);
+
+error:
+    virDispatchError(domain->conn);
+    return -1;
+}
+
+/**
+ * virDomainGetBlkioParameters:
+ * @domain: pointer to domain object
+ * @params: pointer to blkio parameter object
+ *          (return value, allocated by the caller)
+ * @nparams: pointer to number of blkio parameters
+ * @flags: currently unused, for future extension
+ *
+ * Get the blkio parameters, the @params array will be filled with the values
+ * equal to the number of parameters suggested by @nparams
+ *
+ * This function requires privileged access to the hypervisor. This function
+ * expects the caller to allocate the @params.
+ *
+ * Returns -1 in case of error, 0 in case of success.
+ */
+int
+virDomainGetBlkioParameters(virDomainPtr domain,
+                             virBlkioParameterPtr params,
+                             int *nparams, unsigned int flags)
+{
+    virConnectPtr conn;
+
+    VIR_DOMAIN_DEBUG(domain, "params=%p, nparams=%d, flags=%u",
+                     params, (nparams) ? *nparams : -1, flags);
+
+    virResetLastError();
+
+    if (!VIR_IS_CONNECTED_DOMAIN(domain)) {
+        virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__);
+        virDispatchError(NULL);
+        return -1;
+    }
+    if ((nparams == NULL) || (*nparams < 0)) {
+        virLibDomainError(VIR_ERR_INVALID_ARG, __FUNCTION__);
+        goto error;
+    }
+    conn = domain->conn;
+
+    if (conn->driver->domainGetBlkioParameters) {
+        int ret;
+        ret = conn->driver->domainGetBlkioParameters (domain, params, nparams, flags);
+        if (ret < 0)
+            goto error;
+        return ret;
+    }
+    virLibConnError (VIR_ERR_NO_SUPPORT, __FUNCTION__);
+
+error:
+    virDispatchError(domain->conn);
+    return -1;
+}
+
+/**
  * virDomainSetMemoryParameters:
  * @domain: pointer to domain object
  * @params: pointer to memory parameter objects
diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms
index 1a45be1..d43bc94 100644
--- a/src/libvirt_public.syms
+++ b/src/libvirt_public.syms
@@ -424,4 +424,10 @@ LIBVIRT_0.8.8 {
         virConnectGetSysinfo;
 } LIBVIRT_0.8.6;
 
+LIBVIRT_0.8.7 {
+    global:
+        virDomainSetBlkioParameters;
+        virDomainGetBlkioParameters;
+} LIBVIRT_0.8.6;
+
 # .... define new API here using predicted next version number ....
diff --git a/src/lxc/lxc_driver.c b/src/lxc/lxc_driver.c
index 0f78579..1940a16 100644
--- a/src/lxc/lxc_driver.c
+++ b/src/lxc/lxc_driver.c
@@ -2930,6 +2930,8 @@ static virDriver lxcDriver = {
     lxcDomainSetMemoryParameters, /* domainSetMemoryParameters */
     lxcDomainGetMemoryParameters, /* domainGetMemoryParameters */
     lxcDomainOpenConsole, /* domainOpenConsole */
+    NULL, /* domainSetBlkioParameters */
+    NULL, /* domainGetBlkioParameters */
 };
 
 static virStateDriver lxcStateDriver = {
diff --git a/src/openvz/openvz_driver.c b/src/openvz/openvz_driver.c
index 00d378a..5dec2c6 100644
--- a/src/openvz/openvz_driver.c
+++ b/src/openvz/openvz_driver.c
@@ -1669,6 +1669,8 @@ static virDriver openvzDriver = {
     NULL, /* domainSetMemoryParameters */
     NULL, /* domainGetMemoryParameters */
     NULL, /* domainOpenConsole */
+    NULL, /* domainSetBlkioParameters */
+    NULL, /* domainGetBlkioParameters */
 };
 
 int openvzRegister(void) {
diff --git a/src/phyp/phyp_driver.c b/src/phyp/phyp_driver.c
index d954f2a..a93efde 100644
--- a/src/phyp/phyp_driver.c
+++ b/src/phyp/phyp_driver.c
@@ -4051,6 +4051,8 @@ static virDriver phypDriver = {
     NULL,                       /* domainSetMemoryParameters */
     NULL,                       /* domainGetMemoryParameters */
     NULL, /* domainOpenConsole */
+    NULL,                       /* domainSetBlkioParameters */
+    NULL,                       /* domainGetBlkioParameters */
 };
 
 static virStorageDriver phypStorageDriver = {
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 82a2210..882f323 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -10502,6 +10502,8 @@ static virDriver qemuDriver = {
     qemuDomainSetMemoryParameters, /* domainSetMemoryParameters */
     qemuDomainGetMemoryParameters, /* domainGetMemoryParameters */
     qemuDomainOpenConsole, /* domainOpenConsole */
+    NULL, /* domainSetBlkioParameters */
+    NULL, /* domainGetBlkioParameters */
 };
 
 
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index 4ca0d3b..6d148f1 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -10946,6 +10946,8 @@ static virDriver remote_driver = {
     remoteDomainSetMemoryParameters, /* domainSetMemoryParameters */
     remoteDomainGetMemoryParameters, /* domainGetMemoryParameters */
     remoteDomainOpenConsole, /* domainOpenConsole */
+    NULL, /* domainSetBlkioParameters */
+    NULL, /* domainGetBlkioParameters */
 };
 
 static virNetworkDriver network_driver = {
diff --git a/src/test/test_driver.c b/src/test/test_driver.c
index 1937da0..081652d 100644
--- a/src/test/test_driver.c
+++ b/src/test/test_driver.c
@@ -5443,6 +5443,8 @@ static virDriver testDriver = {
     NULL, /* domainSetMemoryParameters */
     NULL, /* domainGetMemoryParameters */
     NULL, /* domainOpenConsole */
+    NULL, /* domainSetBlkioParameters */
+    NULL, /* domainGetBlkioParameters */
 };
 
 static virNetworkDriver testNetworkDriver = {
diff --git a/src/uml/uml_driver.c b/src/uml/uml_driver.c
index 2af8002..ef11070 100644
--- a/src/uml/uml_driver.c
+++ b/src/uml/uml_driver.c
@@ -2245,6 +2245,8 @@ static virDriver umlDriver = {
     NULL, /* domainSetMemoryParamters */
     NULL, /* domainGetMemoryParamters */
     umlDomainOpenConsole, /* domainOpenConsole */
+    NULL, /* domainSetBlkioParameters */
+    NULL, /* domainGetBlkioParameters */
 };
 
 static int
diff --git a/src/vmware/vmware_driver.c b/src/vmware/vmware_driver.c
index 22b29d1..37e3346 100644
--- a/src/vmware/vmware_driver.c
+++ b/src/vmware/vmware_driver.c
@@ -1005,6 +1005,8 @@ static virDriver vmwareDriver = {
     NULL,                       /* domainSetMemoryParameters */
     NULL,                       /* domainGetMemoryParameters */
     NULL,                       /* domainOpenConsole */
+    NULL,                       /* domainSetBlkioParameters */
+    NULL,                       /* domainGetBlkioParameters */
 };
 
 int
diff --git a/src/xen/xen_driver.c b/src/xen/xen_driver.c
index b14c8db..508ed40 100644
--- a/src/xen/xen_driver.c
+++ b/src/xen/xen_driver.c
@@ -2101,6 +2101,8 @@ static virDriver xenUnifiedDriver = {
     NULL, /* domainSetMemoryParameters */
     NULL, /* domainGetMemoryParameters */
     xenUnifiedDomainOpenConsole, /* domainOpenConsole */
+    NULL, /* domainSetBlkioParameters */
+    NULL, /* domainGetBlkioParameters */
 };
 
 /**
-- 
1.7.1


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