Re: [libvirt] [PATCH 2/8] virDomainBlockPull: Implement the main entry points

* src/libvirt.c: implement the main entry points Signed-off-by: Adam Litke <agl(a)us.ibm.com&gt; --- src/libvirt.c | 252 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 252 insertions(+), 0 deletions(-) diff --git a/src/libvirt.c b/src/libvirt.c index 997d4a2..71afea9 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -14957,3 +14957,255 @@ 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 (flags != 0) { + virLibDomainError(VIR_ERR_INVALID_ARG, + _("flags must be zero")); + 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 (flags != 0) { + virLibDomainError(VIR_ERR_INVALID_ARG, + _("flags must be zero")); + 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 (flags != 0) { + virLibDomainError(VIR_ERR_INVALID_ARG, + _("flags must be zero")); + 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 (flags != 0) { + virLibDomainError(VIR_ERR_INVALID_ARG, + _("flags must be zero")); + 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; +}