[libvirt] [PATCH v2 01/13] destroy: Define new public API virDomainDestroyFlags

[Michal Privoznik]

This introduces new API virDomainDestroyFlags to allow
domain destroying with flags, as the existing API virDomainDestroy
misses flags.

The set of flags is defined in virDomainDestroyFlagsValues enum,
which is currently commented, because it is empty.

Calling this API with no flags set (@flags == 0) is equivalent calling
virDomainDestroy.
---
 include/libvirt/libvirt.h.in |    7 +++++
 src/driver.h                 |    4 +++
 src/libvirt.c                |   52 ++++++++++++++++++++++++++++++++++++++++++
 src/libvirt_public.syms      |    1 +
 4 files changed, 64 insertions(+), 0 deletions(-)

diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
index 6afd591..c368a9f 100644
--- a/include/libvirt/libvirt.h.in
+++ b/include/libvirt/libvirt.h.in
@@ -913,6 +913,11 @@ virConnectPtr           virDomainGetConnect     (virDomainPtr domain);
 /*
  * Domain creation and destruction
  */
+
+/*
+ * typedef enum {
+ * } virDomainDestroyFlagsValues;
+ */
 virDomainPtr            virDomainCreateXML      (virConnectPtr conn,
                                                  const char *xmlDesc,
                                                  unsigned int flags);
@@ -929,6 +934,8 @@ int                     virDomainShutdown       (virDomainPtr domain);
 int                     virDomainReboot         (virDomainPtr domain,
                                                  unsigned int flags);
 int                     virDomainDestroy        (virDomainPtr domain);
+int                     virDomainDestroyFlags   (virDomainPtr domain,
+                                                 unsigned int flags);
 int                     virDomainRef            (virDomainPtr domain);
 int                     virDomainFree           (virDomainPtr domain);
 
diff --git a/src/driver.h b/src/driver.h
index 4c4955f..9400fb2 100644
--- a/src/driver.h
+++ b/src/driver.h
@@ -124,6 +124,9 @@ typedef int
                                          unsigned int flags);
 typedef int
         (*virDrvDomainDestroy)		(virDomainPtr domain);
+typedef int
+        (*virDrvDomainDestroyFlags) (virDomainPtr domain,
+                                         unsigned int flags);
 typedef char *
         (*virDrvDomainGetOSType)	(virDomainPtr domain);
 typedef unsigned long
@@ -701,6 +704,7 @@ struct _virDriver {
     virDrvDomainShutdown		domainShutdown;
     virDrvDomainReboot		domainReboot;
     virDrvDomainDestroy		domainDestroy;
+    virDrvDomainDestroyFlags    domainDestroyFlags;
     virDrvDomainGetOSType		domainGetOSType;
     virDrvDomainGetMaxMemory	domainGetMaxMemory;
     virDrvDomainSetMaxMemory	domainSetMaxMemory;
diff --git a/src/libvirt.c b/src/libvirt.c
index 16a9a02..baaf5fa 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -2078,6 +2078,58 @@ error:
 }
 
 /**
+ * virDomainDestroyFlags:
+ * @domain: a domain object
+ * @flags: an OR'ed set of virDomainDestroyFlagsValues
+ *
+ * Destroy the domain object. The running instance is shutdown if not down
+ * already and all resources used by it are given back to the hypervisor.
+ * This does not free the associated virDomainPtr object.
+ * This function may require privileged access.
+ *
+ * Calling this function with no @flags set (equal zero)
+ * is equivalent calling virDomainDestroy.
+ *
+ * Returns 0 in case of success and -1 in case of failure.
+ */
+int
+virDomainDestroyFlags(virDomainPtr domain,
+                      unsigned int flags)
+{
+    virConnectPtr conn;
+
+    VIR_DOMAIN_DEBUG(domain);
+
+    virResetLastError();
+
+    if (!VIR_IS_CONNECTED_DOMAIN(domain)) {
+        virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__);
+        virDispatchError(NULL);
+        return -1;
+    }
+
+    conn = domain->conn;
+    if (conn->flags & VIR_CONNECT_RO) {
+        virLibDomainError(VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+        goto error;
+    }
+
+    if (conn->driver->domainDestroyFlags) {
+        int ret;
+        ret = conn->driver->domainDestroyFlags(domain, flags);
+        if (ret < 0)
+            goto error;
+        return ret;
+    }
+
+    virLibConnError(VIR_ERR_NO_SUPPORT, __FUNCTION__);
+
+error:
+    virDispatchError(conn);
+    return -1;
+}
+
+/**
  * virDomainFree:
  * @domain: a domain object
  *
diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms
index 5cc480e..f8b8c2d 100644
--- a/src/libvirt_public.syms
+++ b/src/libvirt_public.syms
@@ -469,6 +469,7 @@ LIBVIRT_0.9.3 {
 LIBVIRT_0.9.4 {
     global:
         virDomainUndefineFlags;
+        virDomainDestroyFlags;
 } LIBVIRT_0.9.3;
 
 # .... define new API here using predicted next version number ....
-- 
1.7.5.rc3