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[libvirt] [PATCH 2/6] virDomainStreamDisk: Add public symbols to libvirt API



* src/libvirt.c: implement the main entry points
* src/libvirt_public.syms: add them to the exported symbols

Signed-off-by: Adam Litke <agl us ibm com>
---
 src/libvirt.c           |  121 +++++++++++++++++++++++++++++++++++++++++++++++
 src/libvirt_public.syms |    6 ++
 2 files changed, 127 insertions(+), 0 deletions(-)

diff --git a/src/libvirt.c b/src/libvirt.c
index aebd3bc..4244d23 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -5897,6 +5897,127 @@ error:
 }
 
 /**
+ * virDomainStreamDisk:
+ * @dom: pointer to the domain object
+ * @path: path to the block device
+ * @offset: when streaming a single disk unit, the offset of the unit to stream
+ * @flags: flags to control disk streaming behavior
+ *
+ * Returns: Next offset or 0 on success, -1 on failure.
+ */
+unsigned long long
+virDomainStreamDisk(virDomainPtr dom,
+                    const char *path,
+                    unsigned long long offset,
+                    unsigned int flags)
+{
+    virConnectPtr conn;
+    unsigned long long ret = -1;
+
+    DEBUG("domain=%p, path=%p, offset=%llu, flags=%u",
+          dom, path, offset, flags);
+
+    if (path == NULL) {
+        virLibDomainError (dom, VIR_ERR_INVALID_ARG,
+                           _("path must not be NULL"));
+        goto error;
+    }
+
+    if (flags == VIR_STREAM_DISK_START || flags == VIR_STREAM_DISK_STOP) {
+        if (offset != 0) {
+            virLibDomainError (dom, VIR_ERR_INVALID_ARG,
+                               _("offset must be 0 for continuous streaming"));
+            goto error;
+        }
+    } else if (flags != VIR_STREAM_DISK_ONE) {
+        virLibDomainError (dom, VIR_ERR_INVALID_ARG,
+                           _("Invalid value for flags"));
+        goto error;
+    }
+
+    virResetLastError();
+    if (!VIR_IS_CONNECTED_DOMAIN (dom)) {
+        virLibDomainError (NULL, VIR_ERR_INVALID_DOMAIN, __FUNCTION__);
+        return -1;
+    }
+
+    conn = dom->conn;
+    if (conn->driver->domainStreamDisk) {
+        ret = conn->driver->domainStreamDisk (dom, path, offset, flags);
+        if (ret == -1)
+            goto error;
+        return ret;
+    }
+
+    virLibDomainError (dom, VIR_ERR_NO_SUPPORT, __FUNCTION__);
+
+error:
+    virDispatchError(dom->conn);
+    return -1;
+}
+
+/**
+ * virDomainStreamDiskInfo:
+ * @dom: pointer to the domain object
+ * @states: An array of virStreamDiskState structures to store stream info
+ * @nr_states: The maximimum number of stream states to report
+ * @flags: future flags, use 0 for now
+ *
+ * Returns: The number of streams reported or -1 on failure.
+ */
+int
+virDomainStreamDiskInfo(virDomainPtr dom,
+                        virStreamDiskStatePtr states,
+                        unsigned int nr_states,
+                        unsigned int flags)
+{
+    virConnectPtr conn;
+    int ret = -1;
+
+    DEBUG("dom=%p, states=%p, nr_states=%u, flags=%u",
+          dom, states, nr_states, flags);
+
+    if (states == NULL) {
+        virLibDomainError (dom, VIR_ERR_INVALID_ARG,
+                           _("states must not be NULL"));
+        goto error;
+    }
+
+    if (nr_states == 0) {
+        virLibDomainError (dom, VIR_ERR_INVALID_ARG,
+                           _("nr_states must be positive"));
+        goto error;
+    }
+
+    if (flags != 0) {
+        virLibDomainError (dom, VIR_ERR_INVALID_ARG,
+                           _("flags must be 0"));
+        goto error;
+    }
+
+    virResetLastError();
+    if (!VIR_IS_CONNECTED_DOMAIN (dom)) {
+        virLibDomainError (NULL, VIR_ERR_INVALID_DOMAIN, __FUNCTION__);
+        return -1;
+    }
+
+    conn = dom->conn;
+    if (conn->driver->domainStreamDiskInfo) {
+        ret = conn->driver->domainStreamDiskInfo (dom, states, nr_states,
+                                                  flags);
+        if (ret == -1)
+            goto error;
+        return ret;
+    }
+
+    virLibDomainError (dom, VIR_ERR_NO_SUPPORT, __FUNCTION__);
+
+error:
+    virDispatchError(dom->conn);
+    return -1;
+}
+
+/**
  * virNodeGetCellsFreeMemory:
  * @conn: pointer to the hypervisor connection
  * @freeMems: pointer to the array of unsigned long long
diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms
index a8091b1..a25596c 100644
--- a/src/libvirt_public.syms
+++ b/src/libvirt_public.syms
@@ -413,4 +413,10 @@ LIBVIRT_0.8.5 {
         virDomainSetVcpusFlags;
 } LIBVIRT_0.8.2;
 
+LIBVIRT_0.8.6 {
+    global:
+        virDomainStreamDisk;
+        virDomainStreamDiskInfo;
+} LIBVIRT_0.8.5;
+
 # .... define new API here using predicted next version number ....
-- 
1.7.3.2.164.g6f10c


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