alex/mex
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Equality checking

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This commit is contained in:
Alex Yatskov 2023-11-03 17:39:33 -07:00
parent 9af373fdab
commit 61b1dadb11
1 changed files with 28 additions and 11 deletions
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39
media.go
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@ -163,16 +163,30 @@ func (self *Volume) export(path string, config ExportConfig, allocator *TempDirA
return nil
}
func (self *Volume) supercedes(other *Volume) bool {
func (self *Volume) compare(other *Volume) int {
if len(self.Pages) == len(other.Pages) {
var different bool
for i := range self.Pages {
if self.Pages[i].Node.Info.Size() != other.Pages[i].Node.Info.Size() {
different = true
break
}
}
if !different {
return 0
}
}
if len(self.Pages) > len(other.Pages) {
return true
return 1
}
if self.AveragePageSize() > other.AveragePageSize() {
return true
return 1
}
return false
return -1
}
type Book struct {
@ -247,7 +261,7 @@ func (self *Book) Export(path string, config ExportConfig, allocator *TempDirAll
return nil
}
func (self *Book) addVolume(volume *Volume) {
func (self *Book) addVolume(newVolume *Volume) {
insert := func(v *Volume) {
self.Volumes[v.Index] = v
if v.Index >= self.VolumeCount {
@ -255,14 +269,17 @@ func (self *Book) addVolume(volume *Volume) {
}
}
currVolume, _ := self.Volumes[volume.Index]
currVolume, _ := self.Volumes[newVolume.Index]
if currVolume == nil {
insert(volume)
} else if volume.supercedes(currVolume) {
self.addOrphan(currVolume)
insert(volume)
insert(newVolume)
} else {
self.addOrphan(volume)
switch newVolume.compare(currVolume) {
case 1:
insert(newVolume)
self.addOrphan(currVolume)
case -1:
self.addOrphan(newVolume)
}
}
}