完善 cache 相关内容
This commit is contained in:
dragon
12
go.mod
12
go.mod
@@ -2,16 +2,18 @@ module code.d7z.net/d7z-project/gitea-pages
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go 1.23.2
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require code.gitea.io/sdk/gitea v0.19.0
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require (
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code.gitea.io/sdk/gitea v0.19.0
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github.com/stretchr/testify v1.8.1
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)
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require (
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github.com/davecgh/go-spew v1.1.1 // indirect
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github.com/davidmz/go-pageant v1.0.2 // indirect
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github.com/go-fed/httpsig v1.1.0 // indirect
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github.com/hashicorp/go-version v1.6.0 // indirect
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github.com/ncruces/go-sqlite3 v0.21.3 // indirect
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github.com/ncruces/julianday v1.0.0 // indirect
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github.com/stretchr/testify v1.8.1 // indirect
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github.com/tetratelabs/wazero v1.8.2 // indirect
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github.com/pmezard/go-difflib v1.0.0 // indirect
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golang.org/x/crypto v0.31.0 // indirect
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golang.org/x/sys v0.28.0 // indirect
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gopkg.in/yaml.v3 v3.0.1 // indirect
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)
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15
go.sum
15
go.sum
@@ -9,10 +9,6 @@ github.com/go-fed/httpsig v1.1.0 h1:9M+hb0jkEICD8/cAiNqEB66R87tTINszBRTjwjQzWcI=
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github.com/go-fed/httpsig v1.1.0/go.mod h1:RCMrTZvN1bJYtofsG4rd5NaO5obxQ5xBkdiS7xsT7bM=
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github.com/hashicorp/go-version v1.6.0 h1:feTTfFNnjP967rlCxM/I9g701jU+RN74YKx2mOkIeek=
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github.com/hashicorp/go-version v1.6.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
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github.com/ncruces/go-sqlite3 v0.21.3 h1:hHkfNQLcbnxPJZhC/RGw9SwP3bfkv/Y0xUHWsr1CdMQ=
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github.com/ncruces/go-sqlite3 v0.21.3/go.mod h1:zxMOaSG5kFYVFK4xQa0pdwIszqxqJ0W0BxBgwdrNjuA=
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github.com/ncruces/julianday v1.0.0 h1:fH0OKwa7NWvniGQtxdJRxAgkBMolni2BjDHaWTxqt7M=
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github.com/ncruces/julianday v1.0.0/go.mod h1:Dusn2KvZrrovOMJuOt0TNXL6tB7U2E8kvza5fFc9G7g=
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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@@ -22,30 +18,25 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
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github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
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github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
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github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
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github.com/tetratelabs/wazero v1.8.2 h1:yIgLR/b2bN31bjxwXHD8a3d+BogigR952csSDdLYEv4=
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github.com/tetratelabs/wazero v1.8.2/go.mod h1:yAI0XTsMBhREkM/YDAK/zNou3GoiAce1P6+rp/wQhjs=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
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golang.org/x/crypto v0.22.0 h1:g1v0xeRhjcugydODzvb3mEM9SQ0HGp9s/nh3COQ/C30=
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golang.org/x/crypto v0.22.0/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M=
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golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
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golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
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golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
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golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
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golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
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golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
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golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
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golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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golang.org/x/term v0.19.0 h1:+ThwsDv+tYfnJFhF4L8jITxu1tdTWRTZpdsWgEgjL6Q=
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golang.org/x/term v0.19.0/go.mod h1:2CuTdWZ7KHSQwUzKva0cbMg6q2DMI3Mmxp+gKJbskEk=
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golang.org/x/term v0.27.0 h1:WP60Sv1nlK1T6SupCHbXzSaN0b9wUmsPoRS9b61A23Q=
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golang.org/x/term v0.27.0/go.mod h1:iMsnZpn0cago0GOrHO2+Y7u7JPn5AylBrcoWkElMTSM=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
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@@ -1,10 +1,12 @@
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package services
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import (
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"bytes"
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"errors"
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"io"
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"os"
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"strings"
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"sync"
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"time"
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)
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type Cache interface {
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@@ -17,11 +19,10 @@ type Cache interface {
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var ErrCacheOutOfMemory = errors.New("内容无法被缓存，超过最大限定值")
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type CacheMemory struct {
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l sync.RWMutex
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data map[string][]byte
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maxAge time.Duration
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sizeGl int
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sizeOne int
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l sync.RWMutex
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data map[string][]byte
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sizeGlobal int
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sizeItem int
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current int
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cache []byte
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@@ -30,10 +31,10 @@ type CacheMemory struct {
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func NewCacheMemory(maxUsage, maxGlobalUsage int) *CacheMemory {
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return &CacheMemory{
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data: make(map[string][]byte),
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l: sync.RWMutex{},
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sizeGl: maxGlobalUsage,
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sizeOne: maxUsage,
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data: make(map[string][]byte),
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l: sync.RWMutex{},
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sizeGlobal: maxGlobalUsage,
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sizeItem: maxUsage,
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cache: make([]byte, maxUsage+1),
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ordered: make([]string, 0),
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@@ -43,32 +44,32 @@ func NewCacheMemory(maxUsage, maxGlobalUsage int) *CacheMemory {
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func (c *CacheMemory) Put(key string, reader io.Reader) error {
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c.l.Lock()
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defer c.l.Unlock()
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size, err := io.ReadAtLeast(reader, c.cache, 0)
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size, err := io.ReadAtLeast(reader, c.cache, 1)
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if err != nil {
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return err
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}
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if size == len(c.cache) {
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return ErrCacheOutOfMemory
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}
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needed := c.sizeGl - c.current + size
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if needed < 0 {
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currentItemSize := len(c.data[key])
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available := c.sizeGlobal + currentItemSize - (c.current + size)
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if available < 0 {
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// 清理旧的内容
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count := 0
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for i, k := range c.ordered {
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needed += len(c.data[k])
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if needed > 0 {
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available += len(c.data[k])
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if available > 0 {
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break
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}
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count = i + 1
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}
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if needed < 0 {
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if available < 0 {
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// 清理全部内容也无法留出空间
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return ErrCacheOutOfMemory
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}
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for _, s := range c.ordered[:count] {
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delete(c.data, s)
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c.current -= len(c.data)
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}
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c.ordered = c.ordered[count:]
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}
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@@ -76,22 +77,59 @@ func (c *CacheMemory) Put(key string, reader io.Reader) error {
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dest := make([]byte, size)
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copy(dest, c.cache[:size])
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c.data[key] = dest
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c.ordered = append(c.ordered, key)
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c.current -= currentItemSize
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c.current += len(dest)
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nextOrdered := make([]string, 0, len(c.ordered))
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for _, s := range c.ordered {
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if s != key {
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nextOrdered = append(nextOrdered, s)
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}
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}
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c.ordered = append(nextOrdered, key)
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return nil
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}
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func (c *CacheMemory) Get(key string) (io.ReadSeekCloser, error) {
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//TODO implement me
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panic("implement me")
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c.l.RLock()
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defer c.l.RUnlock()
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if i, ok := c.data[key]; ok {
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return nopCloser{
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bytes.NewReader(i),
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}, nil
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}
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return nil, os.ErrNotExist
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}
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func (c *CacheMemory) Delete(key string) error {
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//TODO implement me
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panic("implement me")
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func (c *CacheMemory) Delete(pattern string) error {
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c.l.Lock()
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defer c.l.Unlock()
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nextOrder := make([]string, 0, len(c.ordered))
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for _, key := range c.ordered {
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if strings.HasPrefix(key, pattern) {
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c.current -= len(c.data[key])
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delete(c.data, key)
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} else {
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nextOrder = append(nextOrder, key)
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}
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}
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clear(c.ordered)
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c.ordered = nextOrder
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return nil
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}
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func (c *CacheMemory) Close() error {
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//TODO implement me
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panic("implement me")
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c.l.Lock()
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defer c.l.Unlock()
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clear(c.ordered)
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clear(c.data)
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c.current = 0
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return nil
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}
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type nopCloser struct {
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io.ReadSeeker
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}
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func (nopCloser) Close() error { return nil }
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69
pkg/services/cache_test.go
Normal file
69
pkg/services/cache_test.go
Normal file
@@ -0,0 +1,69 @@
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package services
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import (
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"fmt"
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"github.com/stretchr/testify/require"
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"io"
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"os"
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"strings"
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"testing"
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)
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func TestCacheGetPutDelete(t *testing.T) {
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memory := NewCacheMemory(1024, 10240)
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require.NoError(t, memory.Put("hello", strings.NewReader("world")))
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value, err := memory.Get("hello")
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require.NoError(t, err)
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all, err := io.ReadAll(value)
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require.NoError(t, err)
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require.Equal(t, "world", string(all))
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require.Equal(t, 5, memory.current)
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require.NoError(t, memory.Put("hello", strings.NewReader("kotlin")))
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value, err = memory.Get("hello")
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require.NoError(t, err)
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all, err = io.ReadAll(value)
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require.NoError(t, err)
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require.Equal(t, "kotlin", string(all))
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require.Equal(t, 6, memory.current)
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require.Equal(t, 1, len(memory.data))
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require.NoError(t, memory.Put("data", strings.NewReader("kotlin")))
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require.Equal(t, 12, memory.current)
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require.Equal(t, 2, len(memory.data))
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require.Equal(t, 2, len(memory.ordered))
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require.NoError(t, memory.Delete("hello"))
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value, err = memory.Get("hello")
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require.Error(t, err)
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require.Equal(t, 1, len(memory.data))
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require.Equal(t, 1, len(memory.ordered))
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}
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func TestCacheLimit(t *testing.T) {
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memory := NewCacheMemory(5, 5*5)
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require.NoError(t, memory.Put("hello", strings.NewReader("world")))
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require.Equal(t, 5, memory.current)
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require.ErrorIs(t, memory.Put("hello", strings.NewReader("world1")), ErrCacheOutOfMemory)
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require.Equal(t, 5, memory.current)
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for i := 0; i < 4; i++ {
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require.NoError(t, memory.Put(fmt.Sprintf("hello-%d", i), strings.NewReader("govet")))
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}
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value, err := memory.Get("hello")
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require.NoError(t, err)
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all, err := io.ReadAll(value)
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require.NoError(t, err)
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require.Equal(t, "world", string(all))
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require.NoError(t, memory.Put("test", strings.NewReader("govet")))
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value, err = memory.Get("hello")
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require.ErrorIs(t, err, os.ErrNotExist)
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require.Equal(t, 5, len(memory.data))
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require.Equal(t, 5, len(memory.ordered))
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}
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@@ -15,44 +15,33 @@ type Config interface {
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func NewConfigMemory() Config {
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return &ConfigMemory{
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data: make(map[string]string),
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lock: sync.RWMutex{},
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data: sync.Map{},
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}
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}
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// ConfigMemory 一个简单的内存配置归档，仅用于测试
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type ConfigMemory struct {
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data map[string]string
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lock sync.RWMutex
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data sync.Map
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}
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func (m *ConfigMemory) Put(key string, value string) error {
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m.lock.Lock()
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defer m.lock.Unlock()
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m.data[key] = value
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m.data.Store(key, value)
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return nil
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}
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func (m *ConfigMemory) Get(key string) (string, error) {
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m.lock.RLock()
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defer m.lock.RUnlock()
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v, ok := m.data[key]
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if !ok {
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return "", os.ErrNotExist
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if value, ok := m.data.Load(key); ok {
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return value.(string), nil
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}
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return v, nil
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return "", os.ErrNotExist
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}
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func (m *ConfigMemory) Delete(key string) error {
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m.lock.Lock()
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defer m.lock.Unlock()
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delete(m.data, key)
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m.data.Delete(key)
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return nil
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}
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func (m *ConfigMemory) Close() error {
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m.lock.Lock()
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defer m.lock.Unlock()
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clear(m.data)
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m.data.Clear()
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return nil
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}
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