[libvirt] [PATCH 16/n] conf: manage disk source by struct instead of pieces
Eric Blake
eblake at redhat.com
Mon Mar 31 18:09:17 UTC 2014
Now that we have a dedicated type for representing a disk source,
we might as well parse and format directly into that type instead
of piecemeal into pointers to members of the type.
* src/conf/domain_conf.h (virDomainDiskSourceDefFormatInternal)
(virDomainDiskSourceDefParse): Rename...
(virDomainDiskSourceFormat, virDomainDiskSourceParse): ...and
compress signatures.
* src/conf/domain_conf.c (virDomainDiskSourceParse)
(virDomainDiskSourceFormat): Rewrite to use common struct.
(virDomainDiskSourceDefFormat): Delete.
(virDomainDiskDefParseXML, virDomainDiskDefFormat): Update
callers.
* src/conf/snapshot_conf.c (virDomainSnapshotDiskDefParseXML)
(virDomainSnapshotDiskDefFormat): Likewise.
Signed-off-by: Eric Blake <eblake at redhat.com>
---
src/conf/domain_conf.c | 133 ++++++++++++++++++-----------------------------
src/conf/domain_conf.h | 24 +++------
src/conf/snapshot_conf.c | 17 +-----
3 files changed, 60 insertions(+), 114 deletions(-)
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 0af5be7..fba13e2 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -4954,13 +4954,8 @@ virDomainDiskSourcePoolDefParse(xmlNodePtr node,
int
-virDomainDiskSourceDefParse(xmlNodePtr node,
- int type,
- char **source,
- int *proto,
- size_t *nhosts,
- virStorageNetHostDefPtr *hosts,
- virStorageSourcePoolDefPtr *srcpool)
+virDomainDiskSourceParse(xmlNodePtr node,
+ virStorageSourcePtr src)
{
char *protocol = NULL;
char *transport = NULL;
@@ -4970,15 +4965,15 @@ virDomainDiskSourceDefParse(xmlNodePtr node,
memset(&host, 0, sizeof(host));
- switch (type) {
+ switch (src->type) {
case VIR_STORAGE_TYPE_FILE:
- *source = virXMLPropString(node, "file");
+ src->path = virXMLPropString(node, "file");
break;
case VIR_STORAGE_TYPE_BLOCK:
- *source = virXMLPropString(node, "dev");
+ src->path = virXMLPropString(node, "dev");
break;
case VIR_STORAGE_TYPE_DIR:
- *source = virXMLPropString(node, "dir");
+ src->path = virXMLPropString(node, "dir");
break;
case VIR_STORAGE_TYPE_NETWORK:
if (!(protocol = virXMLPropString(node, "protocol"))) {
@@ -4987,14 +4982,14 @@ virDomainDiskSourceDefParse(xmlNodePtr node,
goto cleanup;
}
- if ((*proto = virStorageNetProtocolTypeFromString(protocol)) < 0){
+ if ((src->protocol = virStorageNetProtocolTypeFromString(protocol)) < 0){
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown protocol type '%s'"), protocol);
goto cleanup;
}
- if (!(*source = virXMLPropString(node, "name")) &&
- *proto != VIR_STORAGE_NET_PROTOCOL_NBD) {
+ if (!(src->path = virXMLPropString(node, "name")) &&
+ src->protocol != VIR_STORAGE_NET_PROTOCOL_NBD) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing name for disk source"));
goto cleanup;
@@ -5048,28 +5043,28 @@ virDomainDiskSourceDefParse(xmlNodePtr node,
host.port = virXMLPropString(child, "port");
}
- if (VIR_APPEND_ELEMENT(*hosts, *nhosts, host) < 0)
+ if (VIR_APPEND_ELEMENT(src->hosts, src->nhosts, host) < 0)
goto cleanup;
}
child = child->next;
}
break;
case VIR_STORAGE_TYPE_VOLUME:
- if (virDomainDiskSourcePoolDefParse(node, srcpool) < 0)
+ if (virDomainDiskSourcePoolDefParse(node, &src->srcpool) < 0)
goto cleanup;
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unexpected disk type %s"),
- virStorageTypeToString(type));
+ virStorageTypeToString(src->type));
goto cleanup;
}
/* People sometimes pass a bogus '' source path when they mean to omit the
* source element completely (e.g. CDROM without media). This is just a
* little compatibility check to help those broken apps */
- if (*source && STREQ(*source, ""))
- VIR_FREE(*source);
+ if (src->path && !*src->path)
+ VIR_FREE(src->path);
ret = 0;
@@ -5176,12 +5171,7 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt,
xmlStrEqual(cur->name, BAD_CAST "source")) {
sourceNode = cur;
- if (virDomainDiskSourceDefParse(cur, def->src.type,
- &source,
- &def->src.protocol,
- &def->src.nhosts,
- &def->src.hosts,
- &def->src.srcpool) < 0)
+ if (virDomainDiskSourceParse(cur, &def->src) < 0)
goto error;
if (def->src.type == VIR_STORAGE_TYPE_NETWORK) {
@@ -14694,17 +14684,10 @@ virDomainDiskSourceDefFormatSeclabel(virBufferPtr buf,
}
int
-virDomainDiskSourceDefFormatInternal(virBufferPtr buf,
- int type,
- const char *src,
- int policy,
- int protocol,
- size_t nhosts,
- virStorageNetHostDefPtr hosts,
- size_t nseclabels,
- virSecurityDeviceLabelDefPtr *seclabels,
- virStorageSourcePoolDefPtr srcpool,
- unsigned int flags)
+virDomainDiskSourceFormat(virBufferPtr buf,
+ virStorageSourcePtr src,
+ int policy,
+ unsigned int flags)
{
size_t n;
const char *startupPolicy = NULL;
@@ -14712,51 +14695,56 @@ virDomainDiskSourceDefFormatInternal(virBufferPtr buf,
if (policy)
startupPolicy = virDomainStartupPolicyTypeToString(policy);
- if (src || nhosts > 0 || srcpool || startupPolicy) {
- switch (type) {
+ if (src->path || src->nhosts > 0 || src->srcpool || startupPolicy) {
+ switch ((enum virStorageType)src->type) {
case VIR_STORAGE_TYPE_FILE:
virBufferAddLit(buf, "<source");
- virBufferEscapeString(buf, " file='%s'", src);
+ virBufferEscapeString(buf, " file='%s'", src->path);
virBufferEscapeString(buf, " startupPolicy='%s'", startupPolicy);
- virDomainDiskSourceDefFormatSeclabel(buf, nseclabels, seclabels, flags);
+ virDomainDiskSourceDefFormatSeclabel(buf, src->nseclabels,
+ src->seclabels, flags);
break;
case VIR_STORAGE_TYPE_BLOCK:
virBufferAddLit(buf, "<source");
- virBufferEscapeString(buf, " dev='%s'", src);
+ virBufferEscapeString(buf, " dev='%s'", src->path);
virBufferEscapeString(buf, " startupPolicy='%s'", startupPolicy);
- virDomainDiskSourceDefFormatSeclabel(buf, nseclabels, seclabels, flags);
+ virDomainDiskSourceDefFormatSeclabel(buf, src->nseclabels,
+ src->seclabels, flags);
break;
case VIR_STORAGE_TYPE_DIR:
virBufferAddLit(buf, "<source");
- virBufferEscapeString(buf, " dir='%s'", src);
+ virBufferEscapeString(buf, " dir='%s'", src->path);
virBufferEscapeString(buf, " startupPolicy='%s'", startupPolicy);
virBufferAddLit(buf, "/>\n");
break;
case VIR_STORAGE_TYPE_NETWORK:
virBufferAsprintf(buf, "<source protocol='%s'",
- virStorageNetProtocolTypeToString(protocol));
- virBufferEscapeString(buf, " name='%s'", src);
+ virStorageNetProtocolTypeToString(src->protocol));
+ virBufferEscapeString(buf, " name='%s'", src->path);
- if (nhosts == 0) {
+ if (src->nhosts == 0) {
virBufferAddLit(buf, "/>\n");
} else {
virBufferAddLit(buf, ">\n");
virBufferAdjustIndent(buf, 2);
- for (n = 0; n < nhosts; n++) {
+ for (n = 0; n < src->nhosts; n++) {
virBufferAddLit(buf, "<host");
- virBufferEscapeString(buf, " name='%s'", hosts[n].name);
- virBufferEscapeString(buf, " port='%s'", hosts[n].port);
+ virBufferEscapeString(buf, " name='%s'",
+ src->hosts[n].name);
+ virBufferEscapeString(buf, " port='%s'",
+ src->hosts[n].port);
- if (hosts[n].transport)
+ if (src->hosts[n].transport)
virBufferAsprintf(buf, " transport='%s'",
- virStorageNetHostTransportTypeToString(hosts[n].transport));
+ virStorageNetHostTransportTypeToString(src->hosts[n].transport));
- virBufferEscapeString(buf, " socket='%s'", hosts[n].socket);
+ virBufferEscapeString(buf, " socket='%s'",
+ src->hosts[n].socket);
virBufferAddLit(buf, "/>\n");
}
@@ -14768,22 +14756,23 @@ virDomainDiskSourceDefFormatInternal(virBufferPtr buf,
case VIR_STORAGE_TYPE_VOLUME:
virBufferAddLit(buf, "<source");
- if (srcpool) {
- virBufferAsprintf(buf, " pool='%s' volume='%s'",
- srcpool->pool, srcpool->volume);
- if (srcpool->mode)
+ if (src->srcpool) {
+ virBufferEscapeString(buf, " pool='%s'", src->srcpool->pool);
+ virBufferEscapeString(buf, " volume='%s'",
+ src->srcpool->volume);
+ if (src->srcpool->mode)
virBufferAsprintf(buf, " mode='%s'",
- virStorageSourcePoolModeTypeToString(srcpool->mode));
+ virStorageSourcePoolModeTypeToString(src->srcpool->mode));
}
virBufferEscapeString(buf, " startupPolicy='%s'", startupPolicy);
- virDomainDiskSourceDefFormatSeclabel(buf, nseclabels, seclabels, flags);
+ virDomainDiskSourceDefFormatSeclabel(buf, src->nseclabels,
+ src->seclabels, flags);
break;
- default:
+ case VIR_STORAGE_TYPE_LAST:
virReportError(VIR_ERR_INTERNAL_ERROR,
- _("unexpected disk type %s"),
- virStorageTypeToString(type));
+ _("unexpected disk type %d"), src->type);
return -1;
}
}
@@ -14793,25 +14782,6 @@ virDomainDiskSourceDefFormatInternal(virBufferPtr buf,
static int
-virDomainDiskSourceDefFormat(virBufferPtr buf,
- virDomainDiskDefPtr def,
- unsigned int flags)
-{
- return virDomainDiskSourceDefFormatInternal(buf,
- def->src.type,
- def->src.path,
- def->startupPolicy,
- def->src.protocol,
- def->src.nhosts,
- def->src.hosts,
- def->src.nseclabels,
- def->src.seclabels,
- def->src.srcpool,
- flags);
-}
-
-
-static int
virDomainDiskDefFormat(virBufferPtr buf,
virDomainDiskDefPtr def,
unsigned int flags)
@@ -14932,7 +14902,8 @@ virDomainDiskDefFormat(virBufferPtr buf,
virBufferAddLit(buf, "</auth>\n");
}
- if (virDomainDiskSourceDefFormat(buf, def, flags) < 0)
+ if (virDomainDiskSourceFormat(buf, &def->src, def->startupPolicy,
+ flags) < 0)
return -1;
virDomainDiskGeometryDefFormat(buf, def);
virDomainDiskBlockIoDefFormat(buf, def);
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 02ac5de..2f874c5 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2271,17 +2271,10 @@ int virDomainDefFormatInternal(virDomainDefPtr def,
unsigned int flags,
virBufferPtr buf);
-int virDomainDiskSourceDefFormatInternal(virBufferPtr buf,
- int type,
- const char *src,
- int policy,
- int protocol,
- size_t nhosts,
- virStorageNetHostDefPtr hosts,
- size_t nseclabels,
- virSecurityDeviceLabelDefPtr *seclabels,
- virStorageSourcePoolDefPtr srcpool,
- unsigned int flags);
+int virDomainDiskSourceFormat(virBufferPtr buf,
+ virStorageSourcePtr src,
+ int policy,
+ unsigned int flags);
int virDomainNetDefFormat(virBufferPtr buf,
virDomainNetDefPtr def,
@@ -2328,13 +2321,8 @@ virDomainDiskDefPtr
virDomainDiskRemove(virDomainDefPtr def, size_t i);
virDomainDiskDefPtr
virDomainDiskRemoveByName(virDomainDefPtr def, const char *name);
-int virDomainDiskSourceDefParse(xmlNodePtr node,
- int type,
- char **source,
- int *proto,
- size_t *nhosts,
- virStorageNetHostDefPtr *hosts,
- virStorageSourcePoolDefPtr *srcpool);
+int virDomainDiskSourceParse(xmlNodePtr node,
+ virStorageSourcePtr src);
bool virDomainHasDiskMirror(virDomainObjPtr vm);
diff --git a/src/conf/snapshot_conf.c b/src/conf/snapshot_conf.c
index 3bd4732..374a104 100644
--- a/src/conf/snapshot_conf.c
+++ b/src/conf/snapshot_conf.c
@@ -150,13 +150,7 @@ virDomainSnapshotDiskDefParseXML(xmlNodePtr node,
if (!def->src.path &&
xmlStrEqual(cur->name, BAD_CAST "source")) {
- if (virDomainDiskSourceDefParse(cur,
- def->src.type,
- &def->src.path,
- &def->src.protocol,
- &def->src.nhosts,
- &def->src.hosts,
- NULL) < 0)
+ if (virDomainDiskSourceParse(cur, &def->src) < 0)
goto cleanup;
} else if (!def->src.format &&
@@ -635,14 +629,7 @@ virDomainSnapshotDiskDefFormat(virBufferPtr buf,
if (disk->src.format > 0)
virBufferEscapeString(buf, "<driver type='%s'/>\n",
virStorageFileFormatTypeToString(disk->src.format));
- virDomainDiskSourceDefFormatInternal(buf,
- type,
- disk->src.path,
- 0,
- disk->src.protocol,
- disk->src.nhosts,
- disk->src.hosts,
- 0, NULL, NULL, 0);
+ virDomainDiskSourceFormat(buf, &disk->src, 0, 0);
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</disk>\n");
--
1.9.0
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