From 2855c3d965bab5e88c4cd08dc3a92e705ff5ac9f Mon Sep 17 00:00:00 2001 From: AmineChikhaoui Date: Mon, 2 Apr 2018 12:45:18 +0100 Subject: Make the TTL for disk cache configurable, we can now completely disable disk cache lookup for example by doing: nix copy --from --option \ positive-disk-cache-ttl 0 Issues: #1885 #2035 --- src/libstore/nar-info-disk-cache.cc | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) (limited to 'src/libstore/nar-info-disk-cache.cc') diff --git a/src/libstore/nar-info-disk-cache.cc b/src/libstore/nar-info-disk-cache.cc index 3c52303f0ea4..1e143736f8e2 100644 --- a/src/libstore/nar-info-disk-cache.cc +++ b/src/libstore/nar-info-disk-cache.cc @@ -1,6 +1,7 @@ #include "nar-info-disk-cache.hh" #include "sync.hh" #include "sqlite.hh" +#include "globals.hh" #include @@ -47,10 +48,6 @@ class NarInfoDiskCacheImpl : public NarInfoDiskCache { public: - /* How long negative and positive lookups are valid. */ - const int ttlNegative = 3600; - const int ttlPositive = 30 * 24 * 3600; - /* How often to purge expired entries from the cache. */ const int purgeInterval = 24 * 3600; @@ -116,8 +113,8 @@ public: SQLiteStmt(state->db, "delete from NARs where ((present = 0 and timestamp < ?) or (present = 1 and timestamp < ?))") .use() - (now - ttlNegative) - (now - ttlPositive) + (now - settings.ttlNegativeDiskCache) + (now - settings.ttlPositiveDiskCache) .exec(); debug("deleted %d entries from the NAR info disk cache", sqlite3_changes(state->db)); @@ -186,8 +183,8 @@ public: auto queryNAR(state->queryNAR.use() (cache.id) (hashPart) - (now - ttlNegative) - (now - ttlPositive)); + (now - settings.ttlNegativeDiskCache) + (now - settings.ttlPositiveDiskCache)); if (!queryNAR.next()) return {oUnknown, 0}; -- cgit 1.4.1