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Add getters for metrics and configuration options

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This commit is contained in:
alitto
2020-12-31 12:31:23 -03:00
parent 5f7cd69f18
commit bb00d6603a
5 changed files with 656 additions and 58 deletions
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examples/prometheus/go.mod
+10
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@@ -0,0 +1,10 @@
module github.com/alitto/pond/examples/fixed_size
go 1.14
require (
github.com/alitto/pond v1.3.0
github.com/prometheus/client_golang v1.9.0
)
replace github.com/alitto/pond => ../../
examples/prometheus/go.sum
+400
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@@ -0,0 +1,400 @@
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github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
github.com/urfave/cli v1.22.1/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
go.etcd.io/etcd v0.0.0-20191023171146-3cf2f69b5738/go.mod h1:dnLIgRNXwCJa5e+c6mIZCrds/GIG4ncV9HhK5PX7jPg=
go.opencensus.io v0.20.1/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
go.opencensus.io v0.20.2/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
go.uber.org/atomic v1.5.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
go.uber.org/multierr v1.3.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
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go.uber.org/zap v1.13.0/go.mod h1:zwrFLgMcdUuIBviXEYEH1YKNaOBnKXsx2IPda5bBwHM=
golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
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golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181023162649-9b4f9f5ad519/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181201002055-351d144fa1fc/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190125091013-d26f9f9a57f3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181026203630-95b1ffbd15a5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191220142924-d4481acd189f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201214210602-f9fddec55a1e h1:AyodaIpKjppX+cBfTASF2E1US3H2JFBj920Ot3rtDjs=
golang.org/x/sys v0.0.0-20201214210602-f9fddec55a1e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20200103221440-774c71fcf114/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/api v0.3.1/go.mod h1:6wY9I6uQWHQ8EM57III9mq/AjF+i8G65rmVagqKMtkk=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190530194941-fb225487d101/go.mod h1:z3L6/3dTEVtUr6QSP8miRzeRqwQOioJ9I66odjN4I7s=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.20.0/go.mod h1:chYK+tFQF0nDUGJgXMSgLCQk3phJEuONr2DCgLDdAQM=
google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
google.golang.org/grpc v1.22.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o=
gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=
examples/prometheus/prometheus.go
+56
View File
@@ -0,0 +1,56 @@
package main
import (
"fmt"
"net/http"
"time"
"github.com/alitto/pond"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
func main() {
// Create a worker pool
pool := pond.New(10, 0)
// Register pool metrics collectors
prometheus.MustRegister(prometheus.NewGaugeFunc(
prometheus.GaugeOpts{
Name: "pond_running_workers",
Help: "Number of running worker goroutines",
},
func() float64 {
return float64(pool.RunningWorkers())
}))
prometheus.MustRegister(prometheus.NewGaugeFunc(
prometheus.GaugeOpts{
Name: "pond_idle_workers",
Help: "Number of idle worker goroutines",
},
func() float64 {
return float64(pool.IdleWorkers())
}))
// Expose the registered metrics via HTTP
http.Handle("/metrics", promhttp.Handler())
go submitTasks(pool)
// Start the server
http.ListenAndServe(":8080", nil)
}
func submitTasks(pool *pond.WorkerPool) {
// Submit 1000 tasks
for i := 0; i < 1000; i++ {
n := i
pool.Submit(func() {
fmt.Printf("Running task #%d\n", n)
time.Sleep(3 * time.Second)
})
}
}
pond.go
+123 -38
View File
@@ -65,8 +65,12 @@ type WorkerPool struct {
strategy ResizingStrategy
panicHandler func(interface{})
// Atomic counters
workerCount int32
idleWorkerCount int32
workerCount int32
idleWorkerCount int32
waitingTaskCount uint64
submittedTaskCount uint64
successfulTaskCount uint64
failedTaskCount uint64
// Private properties
tasks chan func()
purgerQuit chan struct{}
@@ -131,16 +135,64 @@ func New(maxWorkers, maxCapacity int, options ...Option) *WorkerPool {
return pool
}
// Running returns the number of running workers
func (p *WorkerPool) Running() int {
// RunningWorkers returns the number of running workers
func (p *WorkerPool) RunningWorkers() int {
return int(atomic.LoadInt32(&p.workerCount))
}
// Idle returns the number of idle workers
func (p *WorkerPool) Idle() int {
// IdleWorkers returns the number of idle workers
func (p *WorkerPool) IdleWorkers() int {
return int(atomic.LoadInt32(&p.idleWorkerCount))
}
// MinWorkers returns minimum number of worker goroutines
func (p *WorkerPool) MinWorkers() int {
return p.minWorkers
}
// MaxWorkers returns maximum number of worker goroutines
func (p *WorkerPool) MaxWorkers() int {
return p.maxWorkers
}
// MaxCapacity returns the maximum number of tasks that can be waiting in the queue
// at any given time (queue size)
func (p *WorkerPool) MaxCapacity() int {
return p.maxCapacity
}
// Strategy returns the configured pool resizing strategy
func (p *WorkerPool) Strategy() ResizingStrategy {
return p.strategy
}
// SubmittedTasks returns the number of tasks submitted since the pool was created
func (p *WorkerPool) SubmittedTasks() uint64 {
return atomic.LoadUint64(&p.submittedTaskCount)
}
// WaitingTasks returns the current number of tasks in the queue that are waiting to be executed
func (p *WorkerPool) WaitingTasks() uint64 {
return atomic.LoadUint64(&p.waitingTaskCount)
}
// SuccessfulTasks returns the number of tasks that have successfully completed their exection
// since the pool was created
func (p *WorkerPool) SuccessfulTasks() uint64 {
return atomic.LoadUint64(&p.successfulTaskCount)
}
// FailedTasks returns the number of tasks that completed with panic since the pool was created
func (p *WorkerPool) FailedTasks() uint64 {
return atomic.LoadUint64(&p.failedTaskCount)
}
// CompletedTasks returns the number of tasks that have completed their exection either successfully
// or with panic since the pool was created
func (p *WorkerPool) CompletedTasks() uint64 {
return p.SuccessfulTasks() + p.FailedTasks()
}
// Submit sends a task to this worker pool for execution. If the queue is full,
// it will wait until the task is dispatched to a worker goroutine.
func (p *WorkerPool) Submit(task func()) {
@@ -154,38 +206,58 @@ func (p *WorkerPool) TrySubmit(task func()) bool {
return p.submit(task, false)
}
func (p *WorkerPool) submit(task func(), waitForIdle bool) bool {
func (p *WorkerPool) submit(task func(), canWaitForIdleWorker bool) (submitted bool) {
if task == nil {
return false
}
runningWorkerCount := p.Running()
defer func() {
if submitted {
// Increment submitted task count
atomic.AddUint64(&p.submittedTaskCount, 1)
// Increment waiting task count
atomic.AddUint64(&p.waitingTaskCount, 1)
}
}()
runningWorkerCount := p.RunningWorkers()
// Attempt to dispatch to an idle worker without blocking
if runningWorkerCount > 0 && p.Idle() > 0 {
if runningWorkerCount > 0 && p.IdleWorkers() > 0 {
select {
case p.tasks <- task:
return true
submitted = true
return
default:
// No idle worker available, continue
}
}
maxWorkersReached := runningWorkerCount >= p.maxWorkers
// Exit if we have reached the max. number of workers and can't wait for an idle worker
if maxWorkersReached && !waitForIdle {
return false
// Start a worker as long as we haven't reached the limit
if runningWorkerCount < p.maxWorkers {
if ok := p.maybeStartWorker(task); ok {
submitted = true
return
}
}
// Start a worker as long as we haven't reached the limit
if ok := p.maybeStartWorker(task); ok {
return true
if !canWaitForIdleWorker {
select {
case p.tasks <- task:
submitted = true
return
default:
// Channel is full and can't wait for an idle worker, so need to exit
submitted = false
return
}
}
// Submit the task to the tasks channel and wait for it to be picked up by a worker
p.tasks <- task
return true
submitted = true
return
}
// SubmitAndWait sends a task to this worker pool for execution and waits for it to complete
@@ -251,7 +323,7 @@ Purge:
select {
// Timed out waiting for any activity to happen, attempt to kill an idle worker
case <-idleTicker.C:
if p.Idle() > 0 && p.Running() > p.minWorkers {
if p.IdleWorkers() > 0 && p.RunningWorkers() > p.minWorkers {
p.tasks <- nil
}
case <-p.purgerQuit:
@@ -273,16 +345,38 @@ func (p *WorkerPool) maybeStartWorker(firstTask func()) bool {
}
// Launch worker
go worker(firstTask, p.tasks, &p.idleWorkerCount, p.decrementWorkerCount, p.panicHandler)
go worker(firstTask, p.tasks, &p.idleWorkerCount, p.decrementWorkerCount, p.executeTask)
return true
}
// executeTask executes the given task and updates task-related counters
func (p *WorkerPool) executeTask(task func()) {
defer func() {
if panic := recover(); panic != nil {
// Increment failed task count
atomic.AddUint64(&p.failedTaskCount, 1)
// Invoke panic handler
p.panicHandler(panic)
}
}()
// Decrement waiting task count
atomic.AddUint64(&p.waitingTaskCount, ^uint64(0))
task()
// Increment successful task count
atomic.AddUint64(&p.successfulTaskCount, 1)
}
func (p *WorkerPool) incrementWorkerCount() bool {
// Attempt to increment worker count
p.mutex.Lock()
runningWorkerCount := p.Running()
runningWorkerCount := p.RunningWorkers()
// Execute the resizing strategy to determine if we can create more workers
if !p.strategy.Resize(runningWorkerCount, p.minWorkers, p.maxWorkers) || runningWorkerCount >= p.maxWorkers {
p.mutex.Unlock()
@@ -316,28 +410,19 @@ func (p *WorkerPool) Group() *TaskGroup {
}
// worker launches a worker goroutine
func worker(firstTask func(), tasks chan func(), idleWorkerCount *int32, exitHandler func(), panicHandler func(interface{})) {
func worker(firstTask func(), tasks chan func(), idleWorkerCount *int32, exitHandler func(), taskExecutor func(func())) {
defer func() {
// Decrement idle count
atomic.AddInt32(idleWorkerCount, -1)
if panic := recover(); panic != nil {
// Handle panic
panicHandler(panic)
// Restart goroutine
go worker(nil, tasks, idleWorkerCount, exitHandler, panicHandler)
} else {
// Decrement idle count
atomic.AddInt32(idleWorkerCount, -1)
// Handle normal exit
exitHandler()
}
// Handle normal exit
exitHandler()
}()
// We have received a task, execute it
if firstTask != nil {
firstTask()
taskExecutor(firstTask)
}
// Increment idle count
atomic.AddInt32(idleWorkerCount, 1)
@@ -352,7 +437,7 @@ func worker(firstTask func(), tasks chan func(), idleWorkerCount *int32, exitHan
atomic.AddInt32(idleWorkerCount, -1)
// We have received a task, execute it
task()
taskExecutor(task)
// Increment idle count
atomic.AddInt32(idleWorkerCount, 1)
pond_blackbox_test.go
+67 -20
View File
@@ -16,6 +16,13 @@ func assertEqual(t *testing.T, expected interface{}, actual interface{}) {
}
}
func assertNotEqual(t *testing.T, expected interface{}, actual interface{}) {
if expected == actual {
t.Helper()
t.Errorf("Expected not equal to %T(%v) but was %T(%v)", expected, expected, actual, actual)
}
}
func TestSubmitAndStopWaiting(t *testing.T) {
pool := pond.New(1, 5)
@@ -97,7 +104,7 @@ func TestSubmitWithNilTask(t *testing.T) {
// Wait until all submitted tasks complete
pool.StopAndWait()
assertEqual(t, 0, pool.Running())
assertEqual(t, 0, pool.RunningWorkers())
}
func TestSubmitAndWait(t *testing.T) {
@@ -125,7 +132,7 @@ func TestSubmitAndWaitWithNilTask(t *testing.T) {
// Wait until all submitted tasks complete
pool.StopAndWait()
assertEqual(t, 0, pool.Running())
assertEqual(t, 0, pool.RunningWorkers())
}
func TestSubmitBefore(t *testing.T) {
@@ -161,12 +168,12 @@ func TestSubmitBeforeWithNilTask(t *testing.T) {
// Wait until all submitted tasks complete
pool.StopAndWait()
assertEqual(t, 0, pool.Running())
assertEqual(t, 0, pool.RunningWorkers())
}
func TestTrySubmit(t *testing.T) {
pool := pond.New(1, 5)
pool := pond.New(1, 0)
// Submit a long-running task
var doneCount int32
@@ -199,8 +206,8 @@ func TestSubmitToIdle(t *testing.T) {
time.Sleep(1 * time.Millisecond)
})
assertEqual(t, int(1), pool.Running())
assertEqual(t, int(1), pool.Idle())
assertEqual(t, int(1), pool.RunningWorkers())
assertEqual(t, int(1), pool.IdleWorkers())
// Submit another task (this one should go to the idle worker)
pool.SubmitAndWait(func() {
@@ -209,8 +216,8 @@ func TestSubmitToIdle(t *testing.T) {
pool.StopAndWait()
assertEqual(t, int(0), pool.Running())
assertEqual(t, int(0), pool.Idle())
assertEqual(t, int(0), pool.RunningWorkers())
assertEqual(t, int(0), pool.IdleWorkers())
}
func TestRunning(t *testing.T) {
@@ -219,7 +226,7 @@ func TestRunning(t *testing.T) {
taskCount := 10
pool := pond.New(workerCount, taskCount)
assertEqual(t, 0, pool.Running())
assertEqual(t, 0, pool.RunningWorkers())
// Submit tasks
var started = make(chan struct{}, workerCount)
@@ -237,7 +244,7 @@ func TestRunning(t *testing.T) {
<-started
}
assertEqual(t, workerCount, pool.Running())
assertEqual(t, workerCount, pool.RunningWorkers())
time.Sleep(1 * time.Millisecond)
// Make sure half the tasks tasks complete
@@ -257,13 +264,13 @@ func TestRunning(t *testing.T) {
pool.StopAndWait()
assertEqual(t, 0, pool.Running())
assertEqual(t, 0, pool.RunningWorkers())
}
func TestSubmitWithPanic(t *testing.T) {
pool := pond.New(1, 5)
assertEqual(t, 0, pool.Running())
assertEqual(t, 0, pool.RunningWorkers())
// Submit a task that panics
var doneCount int32
@@ -281,7 +288,7 @@ func TestSubmitWithPanic(t *testing.T) {
pool.StopAndWait()
assertEqual(t, 0, pool.Running())
assertEqual(t, 0, pool.RunningWorkers())
assertEqual(t, int32(1), atomic.LoadInt32(&doneCount))
}
@@ -302,7 +309,7 @@ func TestPoolWithCustomIdleTimeout(t *testing.T) {
started <- true
// There should be 1 worker running
assertEqual(t, 1, pool.Running())
assertEqual(t, 1, pool.RunningWorkers())
// Let the task complete
completed <- true
@@ -311,7 +318,7 @@ func TestPoolWithCustomIdleTimeout(t *testing.T) {
time.Sleep(10 * time.Millisecond)
// Worker should have been killed
assertEqual(t, 0, pool.Running())
assertEqual(t, 0, pool.RunningWorkers())
pool.StopAndWait()
}
@@ -351,19 +358,19 @@ func TestPoolWithCustomMinWorkers(t *testing.T) {
started <- struct{}{}
// 10 workers should have been started
assertEqual(t, 10, pool.Running())
assertEqual(t, 10, pool.RunningWorkers())
<-completed
pool.StopAndWait()
assertEqual(t, 0, pool.Running())
assertEqual(t, 0, pool.RunningWorkers())
}
func TestGroupSubmit(t *testing.T) {
pool := pond.New(5, 1000)
assertEqual(t, 0, pool.Running())
assertEqual(t, 0, pool.RunningWorkers())
// Submit groups of tasks
var doneCount, taskCount int32
@@ -404,9 +411,49 @@ func TestPoolWithCustomStrategy(t *testing.T) {
group.Wait()
// 2 workers should have been started
assertEqual(t, 2, pool.Running())
assertEqual(t, 2, pool.RunningWorkers())
pool.StopAndWait()
assertEqual(t, 0, pool.Running())
assertEqual(t, 0, pool.RunningWorkers())
}
func TestMetricsAndGetters(t *testing.T) {
pool := pond.New(5, 10)
assertEqual(t, 0, pool.RunningWorkers())
// Submit successful tasks
for i := 0; i < 18; i++ {
pool.TrySubmit(func() {
time.Sleep(5 * time.Millisecond)
})
}
// Submit a task that panics
pool.Submit(func() {
arr := make([]string, 0)
fmt.Printf("Out of range value: %s", arr[1])
})
// Submit another successful task
pool.Submit(func() {
time.Sleep(1 * time.Millisecond)
})
// Submit a nil task (it should not update counters)
pool.Submit(nil)
pool.StopAndWait()
assertEqual(t, 0, pool.RunningWorkers())
assertEqual(t, 0, pool.MinWorkers())
assertEqual(t, 5, pool.MaxWorkers())
assertEqual(t, 10, pool.MaxCapacity())
assertNotEqual(t, nil, pool.Strategy())
assertEqual(t, uint64(17), pool.SubmittedTasks())
assertEqual(t, uint64(16), pool.SuccessfulTasks())
assertEqual(t, uint64(1), pool.FailedTasks())
assertEqual(t, uint64(17), pool.CompletedTasks())
assertEqual(t, uint64(0), pool.WaitingTasks())
}