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Diffstat (limited to 'indra/llmessage/llavatarnamecache.cpp')
-rw-r--r--indra/llmessage/llavatarnamecache.cpp285
1 files changed, 158 insertions, 127 deletions
diff --git a/indra/llmessage/llavatarnamecache.cpp b/indra/llmessage/llavatarnamecache.cpp
index 2f2d9099a3..97f2792686 100644
--- a/indra/llmessage/llavatarnamecache.cpp
+++ b/indra/llmessage/llavatarnamecache.cpp
@@ -81,8 +81,11 @@ namespace LLAvatarNameCache
// only need per-frame timing resolution
LLFrameTimer sRequestTimer;
- // Periodically clean out expired entries from the cache
- //LLFrameTimer sEraseExpiredTimer;
+ /// Maximum time an unrefreshed cache entry is allowed
+ const F64 MAX_UNREFRESHED_TIME = 20.0 * 60.0;
+
+ /// Time when unrefreshed cached names were checked last
+ static F64 sLastExpireCheck;
//-----------------------------------------------------------------------
// Internal methods
@@ -99,8 +102,9 @@ namespace LLAvatarNameCache
// Legacy name system callback
void legacyNameCallback(const LLUUID& agent_id,
- const std::string& full_name,
- bool is_group);
+ const std::string& full_name,
+ bool is_group
+ );
void requestNamesViaLegacy();
@@ -117,7 +121,7 @@ namespace LLAvatarNameCache
bool isRequestPending(const LLUUID& agent_id);
// Erase expired names from cache
- void eraseExpired();
+ void eraseUnrefreshed();
bool expirationFromCacheControl(LLSD headers, F64 *expires);
}
@@ -187,6 +191,7 @@ public:
{
// Pull expiration out of headers if available
F64 expires = LLAvatarNameCache::nameExpirationFromHeaders(mHeaders);
+ F64 now = LLFrameTimer::getTotalSeconds();
LLSD agents = content["agents"];
LLSD::array_const_iterator it = agents.beginArray();
@@ -207,100 +212,91 @@ public:
av_name.mDisplayName = av_name.mUsername;
}
+ LL_DEBUGS("AvNameCache") << "LLAvatarNameResponder::result for " << agent_id << " "
+ << "user '" << av_name.mUsername << "' "
+ << "display '" << av_name.mDisplayName << "' "
+ << "expires in " << expires - now << " seconds"
+ << LL_ENDL;
+
// cache it and fire signals
LLAvatarNameCache::processName(agent_id, av_name, true);
}
// Same logic as error response case
LLSD unresolved_agents = content["bad_ids"];
- if (unresolved_agents.size() > 0)
+ S32 num_unresolved = unresolved_agents.size();
+ if (num_unresolved > 0)
{
- const std::string DUMMY_NAME("\?\?\?");
- LLAvatarName av_name;
- av_name.mUsername = DUMMY_NAME;
- av_name.mDisplayName = DUMMY_NAME;
- av_name.mIsDisplayNameDefault = false;
- av_name.mIsDummy = true;
- av_name.mExpires = expires;
-
+ LL_WARNS("AvNameCache") << "LLAvatarNameResponder::result " << num_unresolved << " unresolved ids; "
+ << "expires in " << expires - now << " seconds"
+ << LL_ENDL;
it = unresolved_agents.beginArray();
for ( ; it != unresolved_agents.endArray(); ++it)
{
const LLUUID& agent_id = *it;
- // cache it and fire signals
- LLAvatarNameCache::processName(agent_id, av_name, true);
+
+ LL_WARNS("AvNameCache") << "LLAvatarNameResponder::result "
+ << "failed id " << agent_id
+ << LL_ENDL;
+
+ LLAvatarNameCache::handleAgentError(agent_id);
}
}
- }
+ LL_DEBUGS("AvNameCache") << "LLAvatarNameResponder::result "
+ << LLAvatarNameCache::sCache.size() << " cached names"
+ << LL_ENDL;
+ }
/*virtual*/ void error(U32 status, const std::string& reason)
{
- // We're going to construct a dummy record and cache it for a while,
- // either briefly for a 503 Service Unavailable, or longer for other
- // errors.
- F64 retry_timestamp = errorRetryTimestamp(status);
-
- // *NOTE: "??" starts trigraphs in C/C++, escape the question marks.
- const std::string DUMMY_NAME("\?\?\?");
- LLAvatarName av_name;
- av_name.mUsername = DUMMY_NAME;
- av_name.mDisplayName = DUMMY_NAME;
- av_name.mIsDisplayNameDefault = false;
- av_name.mIsDummy = true;
- av_name.mExpires = retry_timestamp;
-
- // Add dummy records for all agent IDs in this request
+ // If there's an error, it might be caused by PeopleApi,
+ // or when loading textures on startup and using a very slow
+ // network, this query may time out.
+ // What we should do depends on whether or not we have a cached name
+ LL_WARNS("AvNameCache") << "LLAvatarNameResponder::error " << status << " " << reason
+ << LL_ENDL;
+
+ // Add dummy records for any agent IDs in this request that we do not have cached already
std::vector<LLUUID>::const_iterator it = mAgentIDs.begin();
for ( ; it != mAgentIDs.end(); ++it)
{
const LLUUID& agent_id = *it;
- // cache it and fire signals
- LLAvatarNameCache::processName(agent_id, av_name, true);
- }
- }
-
- // Return time to retry a request that generated an error, based on
- // error type and headers. Return value is seconds-since-epoch.
- F64 errorRetryTimestamp(S32 status)
- {
- F64 now = LLFrameTimer::getTotalSeconds();
-
- // Retry-After takes priority
- LLSD retry_after = mHeaders["retry-after"];
- if (retry_after.isDefined())
- {
- // We only support the delta-seconds type
- S32 delta_seconds = retry_after.asInteger();
- if (delta_seconds > 0)
- {
- // ...valid delta-seconds
- return now + F64(delta_seconds);
- }
- }
-
- // If no Retry-After, look for Cache-Control max-age
- F64 expires = 0.0;
- if (LLAvatarNameCache::expirationFromCacheControl(mHeaders, &expires))
- {
- return expires;
- }
-
- // No information in header, make a guess
- if (status == 503)
- {
- // ...service unavailable, retry soon
- const F64 SERVICE_UNAVAILABLE_DELAY = 600.0; // 10 min
- return now + SERVICE_UNAVAILABLE_DELAY;
- }
- else
- {
- // ...other unexpected error
- const F64 DEFAULT_DELAY = 3600.0; // 1 hour
- return now + DEFAULT_DELAY;
+ LLAvatarNameCache::handleAgentError(agent_id);
}
}
};
+// Provide some fallback for agents that return errors
+void LLAvatarNameCache::handleAgentError(const LLUUID& agent_id)
+{
+ std::map<LLUUID,LLAvatarName>::iterator existing = sCache.find(agent_id);
+ if (existing == sCache.end())
+ {
+ // there is no existing cache entry, so make a temporary name from legacy
+ LL_WARNS("AvNameCache") << "LLAvatarNameCache get legacy for agent "
+ << agent_id << LL_ENDL;
+ gCacheName->get(agent_id, false, // legacy compatibility
+ boost::bind(&LLAvatarNameCache::legacyNameCallback,
+ _1, _2, _3));
+ }
+ else
+ {
+ // we have a chached (but probably expired) entry - since that would have
+ // been returned by the get method, there is no need to signal anyone
+
+ // Clear this agent from the pending list
+ LLAvatarNameCache::sPendingQueue.erase(agent_id);
+
+ const LLAvatarName& av_name = existing->second;
+ LL_DEBUGS("AvNameCache") << "LLAvatarNameCache use cache for agent "
+ << agent_id
+ << "user '" << av_name.mUsername << "' "
+ << "display '" << av_name.mDisplayName << "' "
+ << "expires in " << av_name.mExpires - LLFrameTimer::getTotalSeconds() << " seconds"
+ << LL_ENDL;
+ }
+}
+
void LLAvatarNameCache::processName(const LLUUID& agent_id,
const LLAvatarName& av_name,
bool add_to_cache)
@@ -342,6 +338,7 @@ void LLAvatarNameCache::requestNamesViaCapability()
std::vector<LLUUID> agent_ids;
agent_ids.reserve(128);
+ U32 ids = 0;
ask_queue_t::const_iterator it = sAskQueue.begin();
for ( ; it != sAskQueue.end(); ++it)
{
@@ -352,11 +349,13 @@ void LLAvatarNameCache::requestNamesViaCapability()
// ...starting new request
url += sNameLookupURL;
url += "?ids=";
+ ids = 1;
}
else
{
// ...continuing existing request
url += "&ids=";
+ ids++;
}
url += agent_id.asString();
agent_ids.push_back(agent_id);
@@ -366,7 +365,9 @@ void LLAvatarNameCache::requestNamesViaCapability()
if (url.size() > NAME_URL_SEND_THRESHOLD)
{
- //llinfos << "requestNames " << url << llendl;
+ LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::requestNamesViaCapability first "
+ << ids << " ids"
+ << LL_ENDL;
LLHTTPClient::get(url, new LLAvatarNameResponder(agent_ids));
url.clear();
agent_ids.clear();
@@ -375,7 +376,9 @@ void LLAvatarNameCache::requestNamesViaCapability()
if (!url.empty())
{
- //llinfos << "requestNames " << url << llendl;
+ LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::requestNamesViaCapability all "
+ << ids << " ids"
+ << LL_ENDL;
LLHTTPClient::get(url, new LLAvatarNameResponder(agent_ids));
url.clear();
agent_ids.clear();
@@ -392,6 +395,11 @@ void LLAvatarNameCache::legacyNameCallback(const LLUUID& agent_id,
// Construct a dummy record for this name. By convention, SLID is blank
// Never expires, but not written to disk, so lasts until end of session.
LLAvatarName av_name;
+ LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::legacyNameCallback "
+ << "agent " << agent_id << " "
+ << "full name '" << full_name << "'"
+ << ( is_group ? " [group]" : "" )
+ << LL_ENDL;
buildLegacyName(full_name, &av_name);
// Don't add to cache, the data already exists in the legacy name system
@@ -413,6 +421,8 @@ void LLAvatarNameCache::requestNamesViaLegacy()
// invoked below. This should never happen in practice.
sPendingQueue[agent_id] = now;
+ LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::requestNamesViaLegacy agent " << agent_id << LL_ENDL;
+
gCacheName->get(agent_id, false, // legacy compatibility
boost::bind(&LLAvatarNameCache::legacyNameCallback,
_1, _2, _3));
@@ -451,21 +461,24 @@ void LLAvatarNameCache::importFile(std::istream& istr)
av_name.fromLLSD( it->second );
sCache[agent_id] = av_name;
}
- // entries may have expired since we last ran the viewer, just
- // clean them out now
- eraseExpired();
- llinfos << "loaded " << sCache.size() << llendl;
+ LL_INFOS("AvNameCache") << "loaded " << sCache.size() << LL_ENDL;
+
+ // Some entries may have expired since the cache was stored,
+ // but they will be flushed in the first call to eraseUnrefreshed
+ // from LLAvatarNameResponder::idle
}
void LLAvatarNameCache::exportFile(std::ostream& ostr)
{
LLSD agents;
+ F64 max_unrefreshed = LLFrameTimer::getTotalSeconds() - MAX_UNREFRESHED_TIME;
cache_t::const_iterator it = sCache.begin();
for ( ; it != sCache.end(); ++it)
{
const LLUUID& agent_id = it->first;
const LLAvatarName& av_name = it->second;
- if (!av_name.mIsDummy)
+ // Do not write temporary or expired entries to the stored cache
+ if (!av_name.mIsTemporaryName && av_name.mExpires >= max_unrefreshed)
{
// key must be a string
agents[agent_id.asString()] = av_name.asLLSD();
@@ -500,62 +513,65 @@ void LLAvatarNameCache::idle()
// return;
//}
- // Must be large relative to above
-
- // No longer deleting expired entries, just re-requesting in the get
- // this way first synchronous get call on an expired entry won't return
- // legacy name. LF
-
- //const F32 ERASE_EXPIRED_TIMEOUT = 60.f; // seconds
- //if (sEraseExpiredTimer.checkExpirationAndReset(ERASE_EXPIRED_TIMEOUT))
- //{
- // eraseExpired();
- //}
-
- if (sAskQueue.empty())
+ if (!sAskQueue.empty())
{
- return;
+ if (useDisplayNames())
+ {
+ requestNamesViaCapability();
+ }
+ else
+ {
+ // ...fall back to legacy name cache system
+ requestNamesViaLegacy();
+ }
}
- if (useDisplayNames())
- {
- requestNamesViaCapability();
- }
- else
- {
- // ...fall back to legacy name cache system
- requestNamesViaLegacy();
- }
+ // erase anything that has not been refreshed for more than MAX_UNREFRESHED_TIME
+ eraseUnrefreshed();
}
bool LLAvatarNameCache::isRequestPending(const LLUUID& agent_id)
{
+ bool isPending = false;
const F64 PENDING_TIMEOUT_SECS = 5.0 * 60.0;
- F64 now = LLFrameTimer::getTotalSeconds();
- F64 expire_time = now - PENDING_TIMEOUT_SECS;
pending_queue_t::const_iterator it = sPendingQueue.find(agent_id);
if (it != sPendingQueue.end())
{
- bool request_expired = (it->second < expire_time);
- return !request_expired;
+ // in the list of requests in flight, retry if too old
+ F64 expire_time = LLFrameTimer::getTotalSeconds() - PENDING_TIMEOUT_SECS;
+ isPending = (it->second > expire_time);
}
- return false;
+ return isPending;
}
-void LLAvatarNameCache::eraseExpired()
+void LLAvatarNameCache::eraseUnrefreshed()
{
F64 now = LLFrameTimer::getTotalSeconds();
- cache_t::iterator it = sCache.begin();
- while (it != sCache.end())
- {
- cache_t::iterator cur = it;
- ++it;
- const LLAvatarName& av_name = cur->second;
- if (av_name.mExpires < now)
- {
- sCache.erase(cur);
- }
+ F64 max_unrefreshed = now - MAX_UNREFRESHED_TIME;
+
+ if (!sLastExpireCheck || sLastExpireCheck < max_unrefreshed)
+ {
+ sLastExpireCheck = now;
+
+ for (cache_t::iterator it = sCache.begin(); it != sCache.end();)
+ {
+ const LLAvatarName& av_name = it->second;
+ if (av_name.mExpires < max_unrefreshed)
+ {
+ const LLUUID& agent_id = it->first;
+ LL_DEBUGS("AvNameCache") << agent_id
+ << " user '" << av_name.mUsername << "' "
+ << "expired " << now - av_name.mExpires << " secs ago"
+ << LL_ENDL;
+ sCache.erase(it++);
+ }
+ else
+ {
+ ++it;
+ }
+ }
+ LL_INFOS("AvNameCache") << sCache.size() << " cached avatar names" << LL_ENDL;
}
}
@@ -566,8 +582,11 @@ void LLAvatarNameCache::buildLegacyName(const std::string& full_name,
av_name->mUsername = "";
av_name->mDisplayName = full_name;
av_name->mIsDisplayNameDefault = true;
- av_name->mIsDummy = true;
- av_name->mExpires = F64_MAX;
+ av_name->mIsTemporaryName = true;
+ av_name->mExpires = F64_MAX; // not used because these are not cached
+ LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::buildLegacyName "
+ << full_name
+ << LL_ENDL;
}
// fills in av_name if it has it in the cache, even if expired (can check expiry time)
@@ -590,6 +609,9 @@ bool LLAvatarNameCache::get(const LLUUID& agent_id, LLAvatarName *av_name)
{
if (!isRequestPending(agent_id))
{
+ LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::get "
+ << "refresh agent " << agent_id
+ << LL_ENDL;
sAskQueue.insert(agent_id);
}
}
@@ -611,6 +633,9 @@ bool LLAvatarNameCache::get(const LLUUID& agent_id, LLAvatarName *av_name)
if (!isRequestPending(agent_id))
{
+ LL_DEBUGS("AvNameCache") << "LLAvatarNameCache::get "
+ << "queue request for agent " << agent_id
+ << LL_ENDL;
sAskQueue.insert(agent_id);
}
@@ -643,7 +668,6 @@ void LLAvatarNameCache::get(const LLUUID& agent_id, callback_slot_t slot)
{
// ...name already exists in cache, fire callback now
fireSignal(agent_id, slot, av_name);
-
return;
}
}
@@ -739,6 +763,9 @@ F64 LLAvatarNameCache::nameExpirationFromHeaders(LLSD headers)
bool LLAvatarNameCache::expirationFromCacheControl(LLSD headers, F64 *expires)
{
+ bool fromCacheControl = false;
+ F64 now = LLFrameTimer::getTotalSeconds();
+
// Allow the header to override the default
LLSD cache_control_header = headers["cache-control"];
if (cache_control_header.isDefined())
@@ -747,12 +774,16 @@ bool LLAvatarNameCache::expirationFromCacheControl(LLSD headers, F64 *expires)
std::string cache_control = cache_control_header.asString();
if (max_age_from_cache_control(cache_control, &max_age))
{
- F64 now = LLFrameTimer::getTotalSeconds();
*expires = now + (F64)max_age;
- return true;
+ fromCacheControl = true;
}
}
- return false;
+ LL_DEBUGS("AvNameCache")
+ << ( fromCacheControl ? "expires based on cache control " : "default expiration " )
+ << "in " << *expires - now << " seconds"
+ << LL_ENDL;
+
+ return fromCacheControl;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 11:42:01 +0000