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set testmodule [file normalize tests/modules/blockonkeys.so]
start_server {tags {"modules"}} {
r module load $testmodule
test "Module client blocked on keys: Circular BPOPPUSH" {
set rd1 [redis_deferring_client]
set rd2 [redis_deferring_client]
r del src dst
$rd1 fsl.bpoppush src dst 0
$rd2 fsl.bpoppush dst src 0
;# wait until clients are actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {2}
} else {
fail "Clients are not blocked"
}
r fsl.push src 42
assert_equal {42} [r fsl.getall src]
assert_equal {} [r fsl.getall dst]
}
test "Module client blocked on keys: Self-referential BPOPPUSH" {
set rd1 [redis_deferring_client]
r del src
$rd1 fsl.bpoppush src src 0
;# wait until clients are actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Clients are not blocked"
}
r fsl.push src 42
assert_equal {42} [r fsl.getall src]
}
test {Module client blocked on keys (no metadata): No block} {
r del k
r fsl.push k 33
r fsl.push k 34
r fsl.bpop k 0
} {34}
test {Module client blocked on keys (no metadata): Timeout} {
r del k
set rd [redis_deferring_client]
$rd fsl.bpop k 1
assert_equal {Request timedout} [$rd read]
}
test {Module client blocked on keys (no metadata): Blocked} {
r del k
set rd [redis_deferring_client]
$rd fsl.bpop k 0
;# wait until clients are actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Clients are not blocked"
}
r fsl.push k 34
assert_equal {34} [$rd read]
}
test {Module client blocked on keys (with metadata): No block} {
r del k
r fsl.push k 34
r fsl.bpopgt k 30 0
} {34}
test {Module client blocked on keys (with metadata): Timeout} {
r del k
set rd [redis_deferring_client]
$rd client id
set cid [$rd read]
r fsl.push k 33
$rd fsl.bpopgt k 35 1
assert_equal {Request timedout} [$rd read]
r client kill id $cid ;# try to smoke-out client-related memory leak
}
test {Module client blocked on keys (with metadata): Blocked, case 1} {
r del k
set rd [redis_deferring_client]
$rd client id
set cid [$rd read]
r fsl.push k 33
$rd fsl.bpopgt k 33 0
;# wait until clients are actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Clients are not blocked"
}
r fsl.push k 34
assert_equal {34} [$rd read]
r client kill id $cid ;# try to smoke-out client-related memory leak
}
test {Module client blocked on keys (with metadata): Blocked, case 2} {
r del k
set rd [redis_deferring_client]
$rd fsl.bpopgt k 35 0
;# wait until clients are actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Clients are not blocked"
}
r fsl.push k 33
r fsl.push k 34
r fsl.push k 35
r fsl.push k 36
assert_equal {36} [$rd read]
}
test {Module client blocked on keys (with metadata): Blocked, CLIENT KILL} {
r del k
set rd [redis_deferring_client]
$rd client id
set cid [$rd read]
$rd fsl.bpopgt k 35 0
;# wait until clients are actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Clients are not blocked"
}
r client kill id $cid ;# try to smoke-out client-related memory leak
}
test {Module client blocked on keys (with metadata): Blocked, CLIENT UNBLOCK TIMEOUT} {
r del k
set rd [redis_deferring_client]
$rd client id
set cid [$rd read]
$rd fsl.bpopgt k 35 0
;# wait until clients are actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Clients are not blocked"
}
r client unblock $cid timeout ;# try to smoke-out client-related memory leak
assert_equal {Request timedout} [$rd read]
}
test {Module client blocked on keys (with metadata): Blocked, CLIENT UNBLOCK ERROR} {
r del k
set rd [redis_deferring_client]
$rd client id
set cid [$rd read]
$rd fsl.bpopgt k 35 0
;# wait until clients are actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Clients are not blocked"
}
r client unblock $cid error ;# try to smoke-out client-related memory leak
assert_error "*unblocked*" {$rd read}
}
test {Module client blocked on keys, no timeout CB, CLIENT UNBLOCK TIMEOUT} {
r del k
set rd [redis_deferring_client]
$rd client id
set cid [$rd read]
$rd fsl.bpop k 0 NO_TO_CB
;# wait until clients are actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Clients are not blocked"
}
assert_equal [r client unblock $cid timeout] {0}
$rd close
}
test {Module client blocked on keys, no timeout CB, CLIENT UNBLOCK ERROR} {
r del k
set rd [redis_deferring_client]
$rd client id
set cid [$rd read]
$rd fsl.bpop k 0 NO_TO_CB
;# wait until clients are actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Clients are not blocked"
}
assert_equal [r client unblock $cid error] {0}
$rd close
}
test {Module client re-blocked on keys after woke up on wrong type} {
r del k
set rd [redis_deferring_client]
$rd fsl.bpop k 0
;# wait until clients are actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Clients are not blocked"
}
r lpush k 12
r lpush k 13
r lpush k 14
r del k
r fsl.push k 34
assert_equal {34} [$rd read]
assert_equal {1} [r get fsl_wrong_type] ;# first lpush caused one wrong-type wake-up
}
test {Module client blocked on keys woken up by LPUSH} {
r del k
set rd [redis_deferring_client]
$rd blockonkeys.popall k
# wait until client is actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Client is not blocked"
}
r lpush k 42 squirrel banana
assert_equal {banana squirrel 42} [$rd read]
$rd close
}
test {Module client unblocks BLPOP} {
r del k
set rd [redis_deferring_client]
$rd blpop k 3
# wait until client is actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Client is not blocked"
}
r blockonkeys.lpush k 42
assert_equal {k 42} [$rd read]
$rd close
}
test {Module unblocks module blocked on non-empty list} {
r del k
r lpush k aa
# Module client blocks to pop 5 elements from list
set rd [redis_deferring_client]
$rd blockonkeys.blpopn k 5
# Wait until client is actually blocked
wait_for_condition 50 100 {
[s 0 blocked_clients] eq {1}
} else {
fail "Client is not blocked"
}
# Check that RM_SignalKeyAsReady() can wake up BLPOPN
r blockonkeys.lpush_unblock k bb cc ;# Not enough elements for BLPOPN
r lpush k dd ee ff ;# Doesn't unblock module
r blockonkeys.lpush_unblock k gg ;# Unblocks module
assert_equal {gg ff ee dd cc} [$rd read]
$rd close
}
}
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