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|
#! /bin/sh
. $(realpath $(dirname $0))/common.sh
. ${SCRIPTPREFIX}/include/util.sh
. ${SCRIPTPREFIX}/include/hash.sh
. ${SCRIPTPREFIX}/include/shared_hash.sh
. ${SCRIPTPREFIX}/include/cache.sh
USE_CACHE_CALL=1
MASTERMNT=$(mktemp -d)
_lookup_key() {
[ $# -ge 2 ] || eargs _lookup_key var_return func [args]
local var_return="$1"
local func="$2"
shift 2
local encoded
encode_args encoded "$@"
setvar "${var_return}" "${func}-${encoded}"
}
real_func() {
msg_warn "in real_func $# $@"
local lookup lookup_key
_lookup_key lookup_key "real_func" "$@"
shash_get lookupcnt "${lookup_key}" lookup || lookup=0
lookup=$((lookup + 1))
shash_set lookupcnt "${lookup_key}" ${lookup}
echo "$# $@"
}
real_func_sv() {
msg_warn "in real_func_sv $# $@"
local var_return="$1"
shift
local lookup lookup_key
_lookup_key lookup_key "real_func_sv" "$@"
shash_get lookupcnt "${lookup_key}" lookup || lookup=0
lookup=$((lookup + 1))
shash_set lookupcnt "${lookup_key}" ${lookup}
setvar "${var_return}" "$# $@"
}
real_func_sv_2() {
msg_warn "in real_func_sv_2 $# $@"
local data="$1"
local var_return="$2"
local lookup lookup_key
_lookup_key lookup_key "real_func_sv_2" "${data}"
shash_get lookupcnt "${lookup_key}" lookup || lookup=0
lookup=$((lookup + 1))
shash_set lookupcnt "${lookup_key}" ${lookup}
setvar "${var_return}" "1 ${data}"
}
get_lookup_cnt() {
[ $# -ge 2 ] || eargs get_lookup_cnt var_return func [args]
local var_return="$1"
local func="$2"
shift 2
local key _lookup
_lookup_key key "${func}" "$@"
shash_get lookupcnt "${key}" _lookup || _lookup=0
setvar "${var_return}" "${_lookup}"
}
echo "Working on ${MASTERMNT}"
SHASH_VAR_PATH="${MASTERMNT}"
# Simple test with 1 argument
{
# First lookup, will call into the real function
lookup=0
value=
cache_call value real_func "1"
assert 0 $? "real_func 1 return status"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 1 "${argcnt}" "real_func 1 argcnt"
assert "1" "${value}" "real_func 1 value"
get_lookup_cnt lookup real_func "1"
assert 0 $? "lookupcnt real_func-1"
assert 1 ${lookup} "real_func 1 lookup count"
# Second lookup, should not call into the function
value=
cache_call value real_func "1"
assert 0 $? "real_func 1 return status 2"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 1 "${argcnt}" "real_func 1 argcnt 2"
assert "1" "${value}" "real_func 1 value 2"
get_lookup_cnt lookup real_func "1"
assert 0 $? "lookupcnt real_func-1 2"
assert 1 ${lookup} "real_func 1 lookup count 2"
}
# More complex argument test
{
# First lookup, will call into the real function
lookup=0
get_lookup_cnt lookup real_func "1" "2.0" "3 4"
value=
cache_call value real_func "1" "2.0" "3 4"
assert 0 $? "real_func 1 2.0 '3 4' return status"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 3 "${argcnt}" "real_func 1 2.0 '3 4' argcnt"
assert "1 2.0 3 4" "${value}" "real_func 1 2.0 '3 4' value"
get_lookup_cnt lookup real_func "1" "2.0" "3 4"
assert 0 $? "lookupcnt real_func-1 2.0 '3 4'"
assert 1 ${lookup} "real_func 1 2.0 '3 4' lookup count"
# Second lookup, should not call into the function
value=
cache_call value real_func "1" "2.0" "3 4"
assert 0 $? "real_func 1 2.0 '3 4' return status 2"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 3 "${argcnt}" "real_func 1 2.0 '3 4' argcnt 2"
assert "1 2.0 3 4" "${value}" "real_func 1 2.0 '3 4' value 2"
get_lookup_cnt lookup real_func "1" "2.0" "3 4"
assert 0 $? "lookupcnt real_func-1 2.0 '3 4' 2"
assert 1 ${lookup} "real_func 1 2.0 '3 4' lookup count 2"
# Manually call the function with the first data to force the
# counter up for later tests to ensure the new data find count 0
# and not 1 (as already cached).
real_func "1" "2.0" "3 4" >/dev/null
assert 0 $? "actual real_func 1 2.0 '3 4' return status"
get_lookup_cnt lookup real_func "1" "2.0" "3 4"
assert 2 ${lookup} "actual real_func 1 2.0 '3 4' lookup count"
# Third lookup with trailing empty argument
lookup=0
value=
cache_call value real_func "1" "2.0" "3" "4" ""
assert 0 $? "real_func 1 2.0 3 4 _ return status"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 5 "${argcnt}" "real_func 1 2.0 3 4 _ argcnt"
assert "1 2.0 3 4 " "${value}" "real_func 1 2.0 3 4 _ value"
get_lookup_cnt lookup real_func "1" "2.0" "3" "4" ""
assert 0 $? "lookupcnt real_func-1 2.0 3 4 _"
assert 1 ${lookup} "real_func 1 2.0 3 4 _ lookup count"
# Fouth lookup with similar data as first but last is split into 2,
# should be unique.
lookup=0
value=
cache_call value real_func "1" "2.0" "3" "4"
assert 0 $? "real_func 1 2.0 3 4 return status"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 4 "${argcnt}" "real_func 1 2.0 3 4 argcnt"
assert "1 2.0 3 4" "${value}" "real_func 1 2.0 3 4 value"
get_lookup_cnt lookup real_func "1" "2.0" "3" "4"
assert 0 $? "lookupcnt real_func-1 2.0 3 4"
assert 1 ${lookup} "real_func 1 2.0 3 4 lookup count"
# Fifth lookup with similar data as the last
lookup=0
value=
cache_call value real_func "1" "2.0" "3 " "4"
assert 0 $? "real_func 1 2.0 3_ 4 return status"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 4 "${argcnt}" "real_func 1 2.0 3_ 4 argcnt"
assert "1 2.0 3 4" "${value}" "real_func 1 2.0 3_ 4 value"
get_lookup_cnt lookup real_func "1" "2.0" "3 " "4"
assert 0 $? "lookupcnt real_func-1 2.0 3_ 4"
assert 1 ${lookup} "real_func 1 2.0 3_ 4 lookup count"
}
# Test a lookup with a function with uses setvar rather than stdout for results.
{
# First lookup, will call into the real function
lookup=0
value=
cache_call_sv value real_func_sv sv_value "1"
assert 0 $? "real_func_sv 1 return status"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 1 "${argcnt}" "real_func_sv 1 argcnt"
assert "1" "${value}" "real_func_sv 1 value"
get_lookup_cnt lookup real_func_sv "1"
assert 0 $? "lookupcnt real_func_sv-1"
assert 1 ${lookup} "real_func_sv 1 lookup count"
# Second lookup, should not call into the function
value=
cache_call_sv value real_func_sv sv_value "1"
assert 0 $? "real_func_sv 1 return status 2"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 1 "${argcnt}" "real_func_sv 1 argcnt 2"
assert "1" "${value}" "real_func_sv 1 value 2"
get_lookup_cnt lookup real_func_sv "1"
assert 0 $? "lookupcnt real_func_sv-1 2"
assert 1 ${lookup} "real_func_sv 1 lookup count 2"
}
# Test a lookup with a function with uses setvar rather than stdout for results,
# but with return var not in first place.
{
# First lookup, will call into the real function
lookup=0
value=
cache_call_sv value real_func_sv_2 "1" sv_value
assert 0 $? "real_func_sv_2 1 return status"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 1 "${argcnt}" "real_func_sv_2 1 argcnt"
assert "1" "${value}" "real_func_sv_2 1 value"
get_lookup_cnt lookup real_func_sv_2 "1"
assert 0 $? "lookupcnt real_func_sv_2-1"
assert 1 ${lookup} "real_func_sv_2 1 lookup count"
# Second lookup, should not call into the function
value=
cache_call_sv value real_func_sv_2 "1" sv_value
assert 0 $? "real_func_sv_2 1 return status 2"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 1 "${argcnt}" "real_func_sv_2 1 argcnt 2"
assert "1" "${value}" "real_func_sv_2 1 value 2"
get_lookup_cnt lookup real_func_sv_2 "1"
assert 0 $? "lookupcnt real_func_sv_2-1 2"
assert 1 ${lookup} "real_func_sv_2 1 lookup count 2"
}
# Invalidation test
{
# First lookup, will call into the real function
lookup=0
value=
cache_call value real_func "1"
assert 0 $? "real_func 1 return status"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 1 "${argcnt}" "real_func 1 argcnt"
assert "1" "${value}" "real_func 1 value"
get_lookup_cnt lookup real_func "1"
assert 0 $? "lookupcnt real_func-1"
assert 1 ${lookup} "real_func 1 lookup count"
# now invalidate the cache and ensure it is looked up again.
cache_invalidate real_func "1"
cache_call value real_func "1"
assert 0 $? "real_func 1 return status - invalidated"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 1 "${argcnt}" "real_func 1 argcnt - invalidated"
assert "1" "${value}" "real_func 1 value - invalidated"
get_lookup_cnt lookup real_func "1"
assert 0 $? "lookupcnt real_func-1 - invalidated"
assert 2 ${lookup} "real_func 1 lookup count - invalidated"
}
# Forced cached set test
{
# First lookup, will call into the real function
lookup=0
value=
cache_call value real_func "5"
assert 0 $? "real_func 5 return status"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 1 "${argcnt}" "real_func 5 argcnt"
assert "5" "${value}" "real_func 5 value"
get_lookup_cnt lookup real_func "5"
assert 0 $? "lookupcnt real_func-5"
assert 1 ${lookup} "real_func 5 lookup count"
# now change the value in the cache ("1 " is due to real_func
# adding in its $#)
cache_set "1 SET-5-SET" real_func "5"
cache_call value real_func "5"
assert 0 $? "real_func 5 return status - set"
argcnt=${value%% *}
value="${value#[0-9] }"
assert 1 "${argcnt}" "real_func 5 argcnt - set"
assert "SET-5-SET" "${value}" "real_func 5 value - set"
get_lookup_cnt lookup real_func "5"
assert 0 $? "lookupcnt real_func-5 - set"
# Should not have called the real func
assert 1 ${lookup} "real_func 5 lookup count - set"
}
rm -rf "${MASTERMNT}"
exit 0
|
