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Adding additional APIs and pointing header directly into file #2

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Adding additional APIs and pointing header directly into file #2

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9f9dc63
adding sync and close methods
kris-watts-gravwell Mar 26, 2021
696176a
Adding in ability to open existing without truncating
kris-watts-gravwell Apr 1, 2021
569d0e7
working true circular buffer
kris-watts-gravwell Apr 8, 2021
d70330d
adding option to not specify a capacity on an existing buffer
kris-watts-gravwell Apr 8, 2021
e267467
fixing header stuff
kris-watts-gravwell Apr 8, 2021
68eddfc
removed debug statements
kris-watts-gravwell Apr 8, 2021
97e100f
OK, it totally works now
kris-watts-gravwell Apr 9, 2021
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10 changes: 4 additions & 6 deletions advise_linux.go
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Original file line number Diff line number Diff line change
Expand Up @@ -15,13 +15,11 @@ func (b *Buffer) Advise() error {
b.Lock()
defer b.Unlock()

m := b.readmeta()

// Start of next page above write offset
wo := int(m.woff) + (pageSize - int(m.woff)%pageSize)
wo := int(b.m.woff) + (pageSize - int(b.m.woff)%pageSize)

// Start of page below read offset
ro := int(m.roff) - int(m.roff)%pageSize
ro := int(b.m.roff) - int(b.m.roff)%pageSize

if ro > wo {
return syscall.Madvise(b.data[wo:ro], syscall.MADV_DONTNEED)
Expand All @@ -34,8 +32,8 @@ func (b *Buffer) Advise() error {
return err
}
}
if wo < int(m.cap) {
return syscall.Madvise(b.data[wo:m.cap], syscall.MADV_DONTNEED)
if wo < int(b.m.cap) {
return syscall.Madvise(b.data[wo:b.m.cap], syscall.MADV_DONTNEED)
}
return nil
}
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