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clj-leveldb's Issues

Seeming race condition with iterator: "libc++abi.dylib: pure virtual method called"

When I use Clojure 1.6 with 0.1.1, on OS X, it looks like there's a race condition in the iterator. When I do (count (clj-leveldb/iterator <my-db>)) I almost immediately get an error, libc++abi.dylib: pure virtual method called.

When I (count (map (fn [x] (Thread/sleep 1) x) (clj-leveldb/iterator <my-db>)) I don't see this problem.

When I use Clojure 1.5.1 with 0.1.0, on OS X, everything works great.

NullPointerException thrown by clj-leveldb/iterator 

(def db (clj-leveldb/create-db "/tmp/leveldb" {:key-decoder byte-streams/to-string :val-decoder byte-streams/to-string}))

(clj-leveldb/iterator db)
;=> java.lang.NullPointerException

(clj-leveldb/put db "foo" "bar")

(clj-leveldb/iterator db)
;=> (["foo" "bar"])

(clj-leveldb/iterator db "z")
;=> java.lang.NullPointerException

I would expect clj-leveldb/iterator to return an empty closeable seq instead of throwing a NullPointerException.

old version of byte-streams is prevent clj-leveldb from running on clojure 1.9+

newer byte-streams versions (2+) include a newer version of clj-tuple which avoids the issue which older versions of clj-tuple hae with failing runtime spec validation for a call to defn-.

anyone trying to use clj-leveldb with the latest clojure alphas will get this error when trying to require clj-leveldb:



Starting nREPL server...
C:\dev\jdk\bin\java -Dfile.encoding=Cp1252 -XX:-OmitStackTraceInFastThrow -Dclojure.compile.path=C:\dev\workspace\compose\target\classes -Dcompose.version=0.1.0-SNAPSHOT -Dclojure.debug=false -Didea.launcher.port=7532 "-Didea.launcher.bin.path=C:\Program Files (x86)\JetBrains\IntelliJ IDEA Community Edition 2016.2\bin" -classpath "C:\dev\workspace\compose\test;C:\dev\workspace\compose\src;C:\dev\workspace\compose\dev-resources;C:\dev\workspace\compose\resources;C:\dev\workspace\compose\target\classes;C:\Users\sub\.m2\repository\clj-tuple\clj-tuple\0.1.5\clj-tuple-0.1.5.jar;C:\Users\sub\.m2\repository\factual\clj-leveldb\0.1.1\clj-leveldb-0.1.1.jar;C:\Users\sub\.m2\repository\org\clojure\clojure\1.9.0-alpha13\clojure-1.9.0-alpha13.jar;C:\Users\sub\.m2\repository\org\clojure\tools.nrepl\0.2.12\tools.nrepl-0.2.12.jar;C:\Users\sub\.m2\repository\com\google\javascript\closure-compiler-externs\v20160315\closure-compiler-externs-v20160315.jar;C:\Users\sub\.m2\repository\clojure-complete\clojure-complete\0.2.4\clojure-complete-0.2.4.jar;C:\Users\sub\.m2\repository\args4j\args4j\2.0.26\args4j-2.0.26.jar;C:\Users\sub\.m2\repository\org\clojure\google-closure-library-third-party\0.0-20160609-f42b4a24\google-closure-library-third-party-0.0-20160609-f42b4a24.jar;C:\Users\sub\.m2\repository\org\clojure\google-closure-library\0.0-20160609-f42b4a24\google-closure-library-0.0-20160609-f42b4a24.jar;C:\Users\sub\.m2\repository\byte-streams\byte-streams\0.1.13\byte-streams-0.1.13.jar;C:\Users\sub\.m2\repository\com\google\code\findbugs\jsr305\1.3.9\jsr305-1.3.9.jar;C:\Users\sub\.m2\repository\org\iq80\leveldb\leveldb-api\0.7\leveldb-api-0.7.jar;C:\Users\sub\.m2\repository\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\sub\.m2\repository\org\clojure\data.json\0.2.6\data.json-0.2.6.jar;C:\Users\sub\.m2\repository\org\clojure\tools.reader\1.0.0-beta3\tools.reader-1.0.0-beta3.jar;C:\Users\sub\.m2\repository\primitive-math\primitive-math\0.1.3\primitive-math-0.1.3.jar;C:\Users\sub\.m2\repository\com\google\javascript\closure-compiler-unshaded\v20160315\closure-compiler-unshaded-v20160315.jar;C:\Users\sub\.m2\repository\org\mozilla\rhino\1.7R5\rhino-1.7R5.jar;C:\Users\sub\.m2\repository\org\clojure\clojurescript\1.9.229\clojurescript-1.9.229.jar;C:\Users\sub\.m2\repository\com\google\guava\guava\19.0\guava-19.0.jar;C:\Users\sub\.m2\repository\org\fusesource\leveldbjni\leveldbjni-all\1.8\leveldbjni-all-1.8.jar;C:\Users\sub\.m2\repository\com\google\protobuf\protobuf-java\2.5.0\protobuf-java-2.5.0.jar;C:\Program Files (x86)\JetBrains\IntelliJ IDEA Community Edition 2016.2\lib\idea_rt.jar" com.intellij.rt.execution.application.AppMain clojure.main -i C:\Users\sub\AppData\Local\Temp\form-init2785844419347275116.clj
#error {
 :cause Call to clojure.core/defn- did not conform to spec:
In: [0] val: clj-tuple/conj-tuple fails spec: :clojure.core.specs/defn-args at: [:args :name] predicate: simple-symbol?
:clojure.spec/args  (clj-tuple/conj-tuple [t__766__unified__ x__767__unified__] (clojure.core/let [t__766__unified__ t__766__unified__] (clojure.core/case (.count t__766__unified__) 0 (new Tuple1 x__767__unified__ (clojure.core/meta t__766__unified__)) 1 (new Tuple2 (. t__766__unified__ e0) x__767__unified__ (clojure.core/meta t__766__unified__)) 2 (new Tuple3 (. t__766__unified__ e0) (. t__766__unified__ e1) x__767__unified__ (clojure.core/meta t__766__unified__)) 3 (new Tuple4 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) x__767__unified__ (clojure.core/meta t__766__unified__)) 4 (new Tuple5 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) (. t__766__unified__ e3) x__767__unified__ (clojure.core/meta t__766__unified__)) 5 (new Tuple6 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) (. t__766__unified__ e3) (. t__766__unified__ e4) x__767__unified__ (clojure.core/meta t__766__unified__)) 6 (clojure.core/let [t__766__unified__ t__766__unified__] (clj_tuple.VectorSeq. 0 7 (clojure.core/-> [] clojure.core/transient (clojure.core/conj! (.nth t__766__unified__ 0)) (clojure.core/conj! (.nth t__766__unified__ 1)) (clojure.core/conj! (.nth t__766__unified__ 2)) (clojure.core/conj! (.nth t__766__unified__ 3)) (clojure.core/conj! (.nth t__766__unified__ 4)) (clojure.core/conj! (.nth t__766__unified__ 5)) (clojure.core/conj! x__767__unified__) clojure.core/persistent!) (clojure.core/meta t__766__unified__))))))

 :data #:clojure.spec{:problems [{:path [:args :name], :pred simple-symbol?, :val clj-tuple/conj-tuple, :via [:clojure.core.specs/defn-args :clojure.core.specs/defn-args], :in [0]}], :args (clj-tuple/conj-tuple [t__766__unified__ x__767__unified__] (clojure.core/let [t__766__unified__ t__766__unified__] (clojure.core/case (.count t__766__unified__) 0 (new Tuple1 x__767__unified__ (clojure.core/meta t__766__unified__)) 1 (new Tuple2 (. t__766__unified__ e0) x__767__unified__ (clojure.core/meta t__766__unified__)) 2 (new Tuple3 (. t__766__unified__ e0) (. t__766__unified__ e1) x__767__unified__ (clojure.core/meta t__766__unified__)) 3 (new Tuple4 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) x__767__unified__ (clojure.core/meta t__766__unified__)) 4 (new Tuple5 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) (. t__766__unified__ e3) x__767__unified__ (clojure.core/meta t__766__unified__)) 5 (new Tuple6 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) (. t__766__unified__ e3) (. t__766__unified__ e4) x__767__unified__ (clojure.core/meta t__766__unified__)) 6 (clojure.core/let [t__766__unified__ t__766__unified__] (clj_tuple.VectorSeq. 0 7 (clojure.core/-> [] clojure.core/transient (clojure.core/conj! (.nth t__766__unified__ 0)) (clojure.core/conj! (.nth t__766__unified__ 1)) (clojure.core/conj! (.nth t__766__unified__ 2)) (clojure.core/conj! (.nth t__766__unified__ 3)) (clojure.core/conj! (.nth t__766__unified__ 4)) (clojure.core/conj! (.nth t__766__unified__ 5)) (clojure.core/conj! x__767__unified__) clojure.core/persistent!) (clojure.core/meta t__766__unified__))))))}
 :via
 [{:type clojure.lang.Compiler$CompilerException
   :message clojure.lang.ExceptionInfo: Call to clojure.core/defn- did not conform to spec:
In: [0] val: clj-tuple/conj-tuple fails spec: :clojure.core.specs/defn-args at: [:args :name] predicate: simple-symbol?
:clojure.spec/args  (clj-tuple/conj-tuple [t__766__unified__ x__767__unified__] (clojure.core/let [t__766__unified__ t__766__unified__] (clojure.core/case (.count t__766__unified__) 0 (new Tuple1 x__767__unified__ (clojure.core/meta t__766__unified__)) 1 (new Tuple2 (. t__766__unified__ e0) x__767__unified__ (clojure.core/meta t__766__unified__)) 2 (new Tuple3 (. t__766__unified__ e0) (. t__766__unified__ e1) x__767__unified__ (clojure.core/meta t__766__unified__)) 3 (new Tuple4 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) x__767__unified__ (clojure.core/meta t__766__unified__)) 4 (new Tuple5 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) (. t__766__unified__ e3) x__767__unified__ (clojure.core/meta t__766__unified__)) 5 (new Tuple6 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) (. t__766__unified__ e3) (. t__766__unified__ e4) x__767__unified__ (clojure.core/meta t__766__unified__)) 6 (clojure.core/let [t__766__unified__ t__766__unified__] (clj_tuple.VectorSeq. 0 7 (clojure.core/-> [] clojure.core/transient (clojure.core/conj! (.nth t__766__unified__ 0)) (clojure.core/conj! (.nth t__766__unified__ 1)) (clojure.core/conj! (.nth t__766__unified__ 2)) (clojure.core/conj! (.nth t__766__unified__ 3)) (clojure.core/conj! (.nth t__766__unified__ 4)) (clojure.core/conj! (.nth t__766__unified__ 5)) (clojure.core/conj! x__767__unified__) clojure.core/persistent!) (clojure.core/meta t__766__unified__))))))
 #:clojure.spec{:problems [{:path [:args :name], :pred simple-symbol?, :val clj-tuple/conj-tuple, :via [:clojure.core.specs/defn-args :clojure.core.specs/defn-args], :in [0]}], :args (clj-tuple/conj-tuple [t__766__unified__ x__767__unified__] (clojure.core/let [t__766__unified__ t__766__unified__] (clojure.core/case (.count t__766__unified__) 0 (new Tuple1 x__767__unified__ (clojure.core/meta t__766__unified__)) 1 (new Tuple2 (. t__766__unified__ e0) x__767__unified__ (clojure.core/meta t__766__unified__)) 2 (new Tuple3 (. t__766__unified__ e0) (. t__766__unified__ e1) x__767__unified__ (clojure.core/meta t__766__unified__)) 3 (new Tuple4 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) x__767__unified__ (clojure.core/meta t__766__unified__)) 4 (new Tuple5 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) (. t__766__unified__ e3) x__767__unified__ (clojure.core/meta t__766__unified__)) 5 (new Tuple6 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) (. t__766__unified__ e3) (. t__766__unified__ e4) x__767__unified__ (clojure.core/meta t__766__unified__)) 6 (clojure.core/let [t__766__unified__ t__766__unified__] (clj_tuple.VectorSeq. 0 7 (clojure.core/-> [] clojure.core/transient (clojure.core/conj! (.nth t__766__unified__ 0)) (clojure.core/conj! (.nth t__766__unified__ 1)) (clojure.core/conj! (.nth t__766__unified__ 2)) (clojure.core/conj! (.nth t__766__unified__ 3)) (clojure.core/conj! (.nth t__766__unified__ 4)) (clojure.core/conj! (.nth t__766__unified__ 5)) (clojure.core/conj! x__767__unified__) clojure.core/persistent!) (clojure.core/meta t__766__unified__))))))}, compiling:(clj_tuple.clj:556:1)
   :at [clojure.lang.Compiler load Compiler.java 7441]}
  {:type clojure.lang.ExceptionInfo
   :message Call to clojure.core/defn- did not conform to spec:
In: [0] val: clj-tuple/conj-tuple fails spec: :clojure.core.specs/defn-args at: [:args :name] predicate: simple-symbol?
:clojure.spec/args  (clj-tuple/conj-tuple [t__766__unified__ x__767__unified__] (clojure.core/let [t__766__unified__ t__766__unified__] (clojure.core/case (.count t__766__unified__) 0 (new Tuple1 x__767__unified__ (clojure.core/meta t__766__unified__)) 1 (new Tuple2 (. t__766__unified__ e0) x__767__unified__ (clojure.core/meta t__766__unified__)) 2 (new Tuple3 (. t__766__unified__ e0) (. t__766__unified__ e1) x__767__unified__ (clojure.core/meta t__766__unified__)) 3 (new Tuple4 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) x__767__unified__ (clojure.core/meta t__766__unified__)) 4 (new Tuple5 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) (. t__766__unified__ e3) x__767__unified__ (clojure.core/meta t__766__unified__)) 5 (new Tuple6 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) (. t__766__unified__ e3) (. t__766__unified__ e4) x__767__unified__ (clojure.core/meta t__766__unified__)) 6 (clojure.core/let [t__766__unified__ t__766__unified__] (clj_tuple.VectorSeq. 0 7 (clojure.core/-> [] clojure.core/transient (clojure.core/conj! (.nth t__766__unified__ 0)) (clojure.core/conj! (.nth t__766__unified__ 1)) (clojure.core/conj! (.nth t__766__unified__ 2)) (clojure.core/conj! (.nth t__766__unified__ 3)) (clojure.core/conj! (.nth t__766__unified__ 4)) (clojure.core/conj! (.nth t__766__unified__ 5)) (clojure.core/conj! x__767__unified__) clojure.core/persistent!) (clojure.core/meta t__766__unified__))))))

   :data #:clojure.spec{:problems [{:path [:args :name], :pred simple-symbol?, :val clj-tuple/conj-tuple, :via [:clojure.core.specs/defn-args :clojure.core.specs/defn-args], :in [0]}], :args (clj-tuple/conj-tuple [t__766__unified__ x__767__unified__] (clojure.core/let [t__766__unified__ t__766__unified__] (clojure.core/case (.count t__766__unified__) 0 (new Tuple1 x__767__unified__ (clojure.core/meta t__766__unified__)) 1 (new Tuple2 (. t__766__unified__ e0) x__767__unified__ (clojure.core/meta t__766__unified__)) 2 (new Tuple3 (. t__766__unified__ e0) (. t__766__unified__ e1) x__767__unified__ (clojure.core/meta t__766__unified__)) 3 (new Tuple4 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) x__767__unified__ (clojure.core/meta t__766__unified__)) 4 (new Tuple5 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) (. t__766__unified__ e3) x__767__unified__ (clojure.core/meta t__766__unified__)) 5 (new Tuple6 (. t__766__unified__ e0) (. t__766__unified__ e1) (. t__766__unified__ e2) (. t__766__unified__ e3) (. t__766__unified__ e4) x__767__unified__ (clojure.core/meta t__766__unified__)) 6 (clojure.core/let [t__766__unified__ t__766__unified__] (clj_tuple.VectorSeq. 0 7 (clojure.core/-> [] clojure.core/transient (clojure.core/conj! (.nth t__766__unified__ 0)) (clojure.core/conj! (.nth t__766__unified__ 1)) (clojure.core/conj! (.nth t__766__unified__ 2)) (clojure.core/conj! (.nth t__766__unified__ 3)) (clojure.core/conj! (.nth t__766__unified__ 4)) (clojure.core/conj! (.nth t__766__unified__ 5)) (clojure.core/conj! x__767__unified__) clojure.core/persistent!) (clojure.core/meta t__766__unified__))))))}
   :at [clojure.core$ex_info invokeStatic core.clj 4725]}]
 :trace
 [[clojure.core$ex_info invokeStatic core.clj 4725]
  [clojure.spec$macroexpand_check invokeStatic spec.clj 681]
  [clojure.spec$macroexpand_check invoke spec.clj 670]
  [clojure.lang.AFn applyToHelper AFn.java 156]
  [clojure.lang.AFn applyTo AFn.java 144]

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