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fix crash in whowas circular buffer

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This commit is contained in:
Jeremy Latt 2014-04-10 11:53:34 -07:00
parent 142bf3d3bb
commit cab21782b4
2 changed files with 7 additions and 7 deletions
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2
irc/constants.go
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@ -1,7 +1,7 @@
package irc package irc
const ( const (
SEM_VER = "ergonomadic-1.4.2" SEM_VER = "ergonomadic-1.4.3"
CRLF = "\r\n" CRLF = "\r\n"
MAX_REPLY_LEN = 512 - len(CRLF) MAX_REPLY_LEN = 512 - len(CRLF)

12
irc/whowas.go
View File

@ -2,8 +2,8 @@ package irc
type WhoWasList struct { type WhoWasList struct {
buffer []*WhoWas buffer []*WhoWas
start uint start int
end uint end int
} }
type WhoWas struct { type WhoWas struct {
@ -26,9 +26,9 @@ func (list *WhoWasList) Append(client *Client) {
hostname: client.hostname, hostname: client.hostname,
realname: client.realname, realname: client.realname,
} }
list.end = (list.end + 1) % uint(len(list.buffer)) list.end = (list.end + 1) % len(list.buffer)
if list.end == list.start { if list.end == list.start {
list.start = (list.end + 1) % uint(len(list.buffer)) list.start = (list.end + 1) % len(list.buffer)
} }
} }
@ -46,10 +46,10 @@ func (list *WhoWasList) Find(nickname Name, limit int64) []*WhoWas {
return results return results
} }
func (list *WhoWasList) prev(index uint) uint { func (list *WhoWasList) prev(index int) int {
index -= 1 index -= 1
if index < 0 { if index < 0 {
index += uint(len(list.buffer)) index += len(list.buffer)
} }
return index return index
} }