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FS-9775: Add sharelock api for dht nodes

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colm authored and Mike Jerris committed 2017-01-25 14:59:38 -06:00
1 parent 64a44ed3a5
commit 59608400d1
3 files changed
+109 -16
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libs/libks/src/dht/ks_dht.h
+1
View File
@@ -443,6 +443,7 @@ KS_DECLARE(ks_status_t) ks_dhtrt_expire_node(ks_dhtrt_routetable_t* table
KS_DECLARE(uint8_t) ks_dhtrt_findclosest_nodes(ks_dhtrt_routetable_t* table, ks_dhtrt_querynodes_t* query);
KS_DECLARE(ks_dht_node_t*) ks_dhtrt_find_node(ks_dhtrt_routetable_t* table, ks_dht_nodeid_t id);
KS_DECLARE(ks_status_t) ks_dhtrt_sharelock_node(ks_dht_node_t* node);
KS_DECLARE(ks_status_t) ks_dhtrt_release_node(ks_dht_node_t* node);
KS_DECLARE(ks_status_t) ks_dhtrt_release_querynodes(ks_dhtrt_querynodes_t* query);
libs/libks/src/dht/ks_dht_bucket.c
+11 -4
View File
@@ -44,7 +44,7 @@
#define KS_DHTRT_MAXPING 3
#define KS_DHTRT_PROCESSTABLE_INTERVAL (5*60)
#define KS_DHTRT_PROCESSTABLE_SHORTINTERVAL (120)
#define KS_DHTRT_RECYCLE_NODE_THRESHOLD 100
#define KS_DHTRT_RECYCLE_NODE_THRESHOLD 0
/* peer flags */
#define DHTPEER_DUBIOUS 0
@@ -795,6 +795,11 @@ KS_DECLARE(ks_status_t) ks_dhtrt_release_node(ks_dht_node_t* node)
return ks_rwl_read_unlock(node->reflock);
}
KS_DECLARE(ks_status_t) ks_dhtrt_sharelock_node(ks_dht_node_t* node)
{
return ks_rwl_read_lock(node->reflock);
}
KS_DECLARE(ks_status_t) ks_dhtrt_release_querynodes(ks_dhtrt_querynodes_t *query)
{
for(int ix=0; ix<query->count; ++ix) {
@@ -959,10 +964,12 @@ void ks_dhtrt_process_deleted(ks_dhtrt_routetable_t *table)
/* reclaim excess memory */
printf("%d %d %p\n", internal->deleted_count, KS_DHTRT_RECYCLE_NODE_THRESHOLD, (void*)deleted); fflush(stdout);
while(internal->deleted_count > KS_DHTRT_RECYCLE_NODE_THRESHOLD && deleted) {
ks_dht_node_t* node = deleted->node;
#ifdef KS_DHT_DEBUGPRINTFX__
#ifdef KS_DHT_DEBUGPRINTF_
ks_log(KS_LOG_DEBUG, "ALLOC process_deleted entry: try write lock\n");
#endif
@@ -973,7 +980,7 @@ void ks_dhtrt_process_deleted(ks_dhtrt_routetable_t *table)
deleted = deleted->next;
ks_pool_free(table->pool, &temp);
--internal->deleted_count;
#ifdef KS_DHT_DEBUGPRINTFX_
#ifdef KS_DHT_DEBUGPRINTF_
ks_log(KS_LOG_DEBUG, "ALLOC process_deleted: internal->deleted_count %d\n", internal->deleted_count);
#endif
if (prev != NULL) {
@@ -985,7 +992,7 @@ void ks_dhtrt_process_deleted(ks_dhtrt_routetable_t *table)
}
else {
#ifdef KS_DHT_DEBUGPRINTFX__
#ifdef KS_DHT_DEBUGPRINTF_
ks_log(KS_LOG_DEBUG, "ALLOC process_deleted entry: try write lock failed\n");
#endif
prev = deleted;