/usr/share/gocode/src/github.com/alicebob/miniredis/cmd_transactions.go is in golang-github-alicebob-miniredis-dev 2.2.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 | // Commands from http://redis.io/commands#transactions
package miniredis
import (
"github.com/alicebob/miniredis/server"
)
// commandsTransaction handles MULTI &c.
func commandsTransaction(m *Miniredis) {
m.srv.Register("DISCARD", m.cmdDiscard)
m.srv.Register("EXEC", m.cmdExec)
m.srv.Register("MULTI", m.cmdMulti)
m.srv.Register("UNWATCH", m.cmdUnwatch)
m.srv.Register("WATCH", m.cmdWatch)
}
// MULTI
func (m *Miniredis) cmdMulti(c *server.Peer, cmd string, args []string) {
if len(args) != 0 {
c.WriteError(errWrongNumber(cmd))
return
}
if !m.handleAuth(c) {
return
}
ctx := getCtx(c)
if inTx(ctx) {
c.WriteError("ERR MULTI calls can not be nested")
return
}
startTx(ctx)
c.WriteOK()
}
// EXEC
func (m *Miniredis) cmdExec(c *server.Peer, cmd string, args []string) {
if len(args) != 0 {
setDirty(c)
c.WriteError(errWrongNumber(cmd))
return
}
if !m.handleAuth(c) {
return
}
ctx := getCtx(c)
if !inTx(ctx) {
c.WriteError("ERR EXEC without MULTI")
return
}
if ctx.dirtyTransaction {
c.WriteError("EXECABORT Transaction discarded because of previous errors.")
return
}
m.Lock()
defer m.Unlock()
// Check WATCHed keys.
for t, version := range ctx.watch {
if m.db(t.db).keyVersion[t.key] > version {
// Abort! Abort!
stopTx(ctx)
c.WriteLen(0)
return
}
}
c.WriteLen(len(ctx.transaction))
for _, cb := range ctx.transaction {
cb(c, ctx)
}
// wake up anyone who waits on anything.
m.signal.Broadcast()
stopTx(ctx)
}
// DISCARD
func (m *Miniredis) cmdDiscard(c *server.Peer, cmd string, args []string) {
if len(args) != 0 {
setDirty(c)
c.WriteError(errWrongNumber(cmd))
return
}
if !m.handleAuth(c) {
return
}
ctx := getCtx(c)
if !inTx(ctx) {
c.WriteError("ERR DISCARD without MULTI")
return
}
stopTx(ctx)
c.WriteOK()
}
// WATCH
func (m *Miniredis) cmdWatch(c *server.Peer, cmd string, args []string) {
if len(args) == 0 {
setDirty(c)
c.WriteError(errWrongNumber(cmd))
return
}
if !m.handleAuth(c) {
return
}
ctx := getCtx(c)
if inTx(ctx) {
c.WriteError("ERR WATCH in MULTI")
return
}
m.Lock()
defer m.Unlock()
db := m.db(ctx.selectedDB)
for _, key := range args {
watch(db, ctx, key)
}
c.WriteOK()
}
// UNWATCH
func (m *Miniredis) cmdUnwatch(c *server.Peer, cmd string, args []string) {
if len(args) != 0 {
setDirty(c)
c.WriteError(errWrongNumber(cmd))
return
}
if !m.handleAuth(c) {
return
}
// Doesn't matter if UNWATCH is in a TX or not. Looks like a Redis bug to me.
unwatch(getCtx(c))
withTx(m, c, func(c *server.Peer, ctx *connCtx) {
// Do nothing if it's called in a transaction.
c.WriteOK()
})
}
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