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message broker: read also from sealed memory buffer

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This commit is contained in:
Chris Lu
2020-04-20 17:26:38 -07:00
parent bd43c62fbd
commit 4bf959edf0
3 changed files with 22 additions and 2 deletions
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17
weed/util/log_buffer/sealed_buffer.go
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@@ -4,6 +4,7 @@ import "time"
type MemBuffer struct {
buf []byte
size int
startTime time.Time
stopTime time.Time
}
@@ -25,16 +26,30 @@ func newSealedBuffers(size int) *SealedBuffers {
return sbs
}
func (sbs *SealedBuffers) SealBuffer(startTime, stopTime time.Time, buf []byte) (newBuf []byte) {
func (sbs *SealedBuffers) SealBuffer(startTime, stopTime time.Time, buf []byte, pos int) (newBuf []byte) {
oldMemBuffer := sbs.buffers[0]
size := len(sbs.buffers)
for i := 0; i < size-1; i++ {
sbs.buffers[i].buf = sbs.buffers[i+1].buf
sbs.buffers[i].size = sbs.buffers[i+1].size
sbs.buffers[i].startTime = sbs.buffers[i+1].startTime
sbs.buffers[i].stopTime = sbs.buffers[i+1].stopTime
}
sbs.buffers[size-1].buf = buf
sbs.buffers[size-1].size = pos
sbs.buffers[size-1].startTime = startTime
sbs.buffers[size-1].stopTime = stopTime
return oldMemBuffer.buf
}
func (mb *MemBuffer) locateByTs(lastReadTime time.Time) (pos int) {
lastReadTs := lastReadTime.UnixNano()
for pos < len(mb.buf) {
size, t := readTs(mb.buf, pos)
if t > lastReadTs {
return
}
pos += size + 4
}
return len(mb.buf)
}