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pht: provide simpler lookup callback

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From a user point of view, the structure Prefix doesn't make sense really. It's
better to provide a simpler callback function signature for the user then.
This commit is contained in:
Simon Désaulniers authored and Adrien Béraud committed 2016-09-01 18:02:23 -04:00
1 parent b6832869b1
commit fe1b8b88e1
1 file changed
+14 -1
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include/opendht/indexation/pht.h
+14 -1
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@@ -148,6 +148,15 @@ public:
raw_cb((std::vector<std::shared_ptr<Value>>*) &values, (Prefix*) &p, user_data);
};
}
using LookupCallbackSimple = std::function<void(std::vector<std::shared_ptr<Value>>& values)>;
typedef void (*LookupCallbackSimpleRaw)(std::vector<std::shared_ptr<Value>>* values, void *user_data);
static LookupCallbackSimple
bindLookupCbSimple(LookupCallbackSimpleRaw raw_cb, void* user_data) {
if (not raw_cb) return {};
return [=](std::vector<std::shared_ptr<Value>>& values) {
raw_cb((std::vector<std::shared_ptr<Value>>*) &values, user_data);
};
}
Pht(std::string name, KeySpec k_spec, std::shared_ptr<DhtRunner> dht)
: name_(INDEX_PREFIX + name), canary_(name_ + ".canary"), keySpec_(k_spec), dht_(dht)
@@ -160,7 +169,11 @@ public:
/**
* Lookup a key for a value.
*/
void lookup(Key k, LookupCallback cb = {}, DoneCallbackSimple doneCb = {}, bool exact_match = true);
void lookup(Key k, LookupCallback cb = {}, DoneCallbackSimple done_cb = {}, bool exact_match = true);
void lookup(Key k, LookupCallbackSimple cb = {}, DoneCallbackSimple done_cb = {}, bool exact_match = true)
{
lookup(k, [=](std::vector<std::shared_ptr<Value>>& values, Prefix) { cb(values); }, done_cb, exact_match);
}
/**
* Adds an entry into the index.
*/