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virDomainBlockPull: Implement the main entry points

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* src/libvirt.c: implement the main entry points

Signed-off-by: Adam Litke <agl@us.ibm.com>
Acked-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Adam Litke 2011-06-14 09:36:48 -05:00 committed by Eric Blake
parent 7d56a16d03
commit 6419f596e1
1 changed files with 228 additions and 0 deletions
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228
src/libvirt.c
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@ -15272,3 +15272,231 @@ error:
virDispatchError(conn);
return -1;
}
/**
* virDomainBlockPull:
* @dom: pointer to domain object
* @path: Fully-qualified filename of disk
* @info: A pointer to a virDomainBlockPullInfo structure, or NULL
* @flags: currently unused, for future extension
*
* Populate a disk image with data from its backing image. Once all data from
* its backing image has been pulled, the disk no longer depends on a backing
* image. This function works incrementally, performing a small amount of work
* each time it is called. When successful, @info is updated with the current
* progress.
*
* Returns -1 in case of failure, 0 when successful.
*/
int virDomainBlockPull(virDomainPtr dom,
const char *path,
virDomainBlockPullInfoPtr info,
unsigned int flags)
{
virConnectPtr conn;
VIR_DOMAIN_DEBUG(dom, "path=%p, info=%p, flags=%u", path, info, 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 (!path) {
virLibDomainError(VIR_ERR_INVALID_ARG,
_("path is NULL"));
goto error;
}
if (conn->driver->domainBlockPull) {
int ret;
ret = conn->driver->domainBlockPull(dom, path, info, flags);
if (ret < 0)
goto error;
return ret;
}
virLibDomainError(VIR_ERR_NO_SUPPORT, __FUNCTION__);
error:
virDispatchError(dom->conn);
return -1;
}
/**
* virDomainBlockPullAll:
* @dom: pointer to domain object
* @path: Fully-qualified filename of disk
* @flags: currently unused, for future extension
*
* Populate a disk image with data from its backing image. Once all data from
* its backing image has been pulled, the disk no longer depends on a backing
* image. This function pulls data for the entire device in the background.
* Progress of the operation can be checked with virDomainGetBlockPullInfo() and
* the operation can be aborted with virDomainBlockPullAbort(). When finished,
* an asynchronous event is raised to indicate the final status.
*
* Returns 0 if the operation has started, -1 on failure.
*/
int virDomainBlockPullAll(virDomainPtr dom,
const char *path,
unsigned int flags)
{
virConnectPtr conn;
VIR_DOMAIN_DEBUG(dom, "path=%p, flags=%u", path, 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 (!path) {
virLibDomainError(VIR_ERR_INVALID_ARG,
_("path is NULL"));
goto error;
}
if (conn->driver->domainBlockPullAll) {
int ret;
ret = conn->driver->domainBlockPullAll(dom, path, flags);
if (ret < 0)
goto error;
return ret;
}
virLibDomainError(VIR_ERR_NO_SUPPORT, __FUNCTION__);
error:
virDispatchError(dom->conn);
return -1;
}
/**
* virDomainBlockPullAbort:
* @dom: pointer to domain object
* @path: fully-qualified filename of disk
* @flags: currently unused, for future extension
*
* Cancel a pull operation previously started by virDomainBlockPullAll().
*
* Returns -1 in case of failure, 0 when successful.
*/
int virDomainBlockPullAbort(virDomainPtr dom,
const char *path,
unsigned int flags)
{
virConnectPtr conn;
VIR_DOMAIN_DEBUG(dom, "path=%p, flags=%u", path, 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 (!path) {
virLibDomainError(VIR_ERR_INVALID_ARG,
_("path is NULL"));
goto error;
}
if (conn->driver->domainBlockPullAbort) {
int ret;
ret = conn->driver->domainBlockPullAbort(dom, path, flags);
if (ret < 0)
goto error;
return ret;
}
virLibDomainError(VIR_ERR_NO_SUPPORT, __FUNCTION__);
error:
virDispatchError(dom->conn);
return -1;
}
/**
* virDomainGetBlockPullInfo:
* @dom: pointer to domain object
* @path: fully-qualified filename of disk
* @info: pointer to a virDomainBlockPullInfo structure
* @flags: currently unused, for future extension
*
* Request progress information on a block pull operation that has been started
* with virDomainBlockPullAll(). If an operation is active for the given
* parameters, @info will be updated with the current progress.
*
* Returns -1 in case of failure, 0 when successful.
*/
int virDomainGetBlockPullInfo(virDomainPtr dom,
const char *path,
virDomainBlockPullInfoPtr info,
unsigned int flags)
{
virConnectPtr conn;
VIR_DOMAIN_DEBUG(dom, "path=%p, info=%p, flags=%u", path, info, flags);
virResetLastError();
if (!VIR_IS_CONNECTED_DOMAIN (dom)) {
virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__);
virDispatchError(NULL);
return -1;
}
conn = dom->conn;
if (!path) {
virLibDomainError(VIR_ERR_INVALID_ARG,
_("path is NULL"));
goto error;
}
if (!info) {
virLibDomainError(VIR_ERR_INVALID_ARG,
_("info is NULL"));
goto error;
}
if (conn->driver->domainGetBlockPullInfo) {
int ret;
ret = conn->driver->domainGetBlockPullInfo(dom, path, info, flags);
if (ret < 0)
goto error;
return ret;
}
virLibDomainError(VIR_ERR_NO_SUPPORT, __FUNCTION__);
error:
virDispatchError(dom->conn);
return -1;
}