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numa_conf: Expose virNumaDistance formatter

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Expose virNumaDistance XML formatter so that it can be re-used by
other parts of the code.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Michal Privoznik 2021-05-14 15:25:47 +02:00
parent ccb8acc966
commit 773118632e
3 changed files with 36 additions and 22 deletions
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47
src/conf/numa_conf.c
View File

@ -82,8 +82,6 @@ VIR_ENUM_IMPL(virDomainMemoryLatency,
"write"
);
typedef struct _virNumaDistance virNumaDistance;
typedef struct _virDomainNumaCache virDomainNumaCache;
typedef struct _virDomainNumaInterconnect virDomainNumaInterconnect;
@ -106,10 +104,7 @@ struct _virDomainNuma {
virDomainMemoryAccess memAccess; /* shared memory access configuration */
virTristateBool discard; /* discard-data for memory-backend-file */
struct _virNumaDistance {
unsigned int value; /* locality value for node i->j or j->i */
unsigned int cellid;
} *distances; /* remote node distances */
virNumaDistance *distances; /* remote node distances */
size_t ndistances;
struct _virDomainNumaCache {
@ -1132,22 +1127,9 @@ virDomainNumaDefFormatXML(virBuffer *buf,
virBufferAsprintf(&attrBuf, " discard='%s'",
virTristateBoolTypeToString(discard));
if (def->mem_nodes[i].ndistances) {
virNumaDistance *distances = def->mem_nodes[i].distances;
virBufferAddLit(&childBuf, "<distances>\n");
virBufferAdjustIndent(&childBuf, 2);
for (j = 0; j < def->mem_nodes[i].ndistances; j++) {
if (distances[j].value) {
virBufferAddLit(&childBuf, "<sibling");
virBufferAsprintf(&childBuf, " id='%d'", distances[j].cellid);
virBufferAsprintf(&childBuf, " value='%d'", distances[j].value);
virBufferAddLit(&childBuf, "/>\n");
}
}
virBufferAdjustIndent(&childBuf, -2);
virBufferAddLit(&childBuf, "</distances>\n");
}
virNumaDistanceFormat(&childBuf,
def->mem_nodes[i].distances,
def->mem_nodes[i].ndistances);
for (j = 0; j < def->mem_nodes[i].ncaches; j++) {
virDomainNumaCache *cache = &def->mem_nodes[i].caches[j];
@ -1836,3 +1818,24 @@ virDomainNumaGetInterconnect(const virDomainNuma *numa,
*value = l->value;
return 0;
}
void
virNumaDistanceFormat(virBuffer *buf,
const virNumaDistance *distances,
size_t ndistances)
{
g_auto(virBuffer) childBuf = VIR_BUFFER_INIT_CHILD(buf);
size_t i;
for (i = 0; i < ndistances; i++) {
if (distances[i].value == 0)
continue;
virBufferAddLit(&childBuf, "<sibling");
virBufferAsprintf(&childBuf, " id='%d'", distances[i].cellid);
virBufferAsprintf(&childBuf, " value='%d'", distances[i].value);
virBufferAddLit(&childBuf, "/>\n");
}
virXMLFormatElement(buf, "distances", NULL, &childBuf);
}

10
src/conf/numa_conf.h
View File

@ -249,3 +249,13 @@ int virDomainNumaGetInterconnect(const virDomainNuma *numa,
unsigned int *cache,
virDomainMemoryLatency *accessType,
unsigned long *value);
typedef struct _virNumaDistance virNumaDistance;
struct _virNumaDistance {
unsigned int value; /* locality value for node i->j or j->i */
unsigned int cellid;
};
void virNumaDistanceFormat(virBuffer *buf,
const virNumaDistance *distances,
size_t ndistances);

1
src/libvirt_private.syms
View File

@ -915,6 +915,7 @@ virDomainNumatunePlacementTypeFromString;
virDomainNumatunePlacementTypeToString;
virDomainNumatuneSet;
virDomainNumatuneSpecifiedMaxNode;
virNumaDistanceFormat;
# conf/nwfilter_conf.h