BlackMATov/promise.hpp
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Merge pull request #28 from BlackMATov/dev

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Dev
This commit is contained in:
Matvey Cherevko
2019-10-02 20:44:26 +07:00
committed by GitHub
parent b550f83099 dd92ea6fb1
commit 8ed2aad253
2 changed files with 41 additions and 3 deletions
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7
headers/promise.hpp/promise.hpp
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@@ -1111,7 +1111,7 @@ namespace promise_hpp
} }
template < typename Iter template < typename Iter
, typename SubPromise = typename Iter::value_type , typename SubPromise = typename std::iterator_traits<Iter>::value_type
, typename SubPromiseResult = typename SubPromise::value_type , typename SubPromiseResult = typename SubPromise::value_type
, typename ResultPromiseValueType = std::vector<SubPromiseResult> > , typename ResultPromiseValueType = std::vector<SubPromiseResult> >
promise<ResultPromiseValueType> promise<ResultPromiseValueType>
@@ -1149,9 +1149,10 @@ namespace promise_hpp
// //
template < typename Iter template < typename Iter
, typename SubPromise = typename Iter::value_type , typename SubPromise = typename std::iterator_traits<Iter>::value_type
, typename SubPromiseResult = typename SubPromise::value_type > , typename SubPromiseResult = typename SubPromise::value_type >
auto make_race_promise(Iter begin, Iter end) { promise<SubPromiseResult>
make_race_promise(Iter begin, Iter end) {
if ( begin == end ) { if ( begin == end ) {
throw std::logic_error("at least one input promise must be provided for make_race_promise"); throw std::logic_error("at least one input promise must be provided for make_race_promise");
} }

37
untests/promise_tests.cpp
View File

@@ -7,6 +7,7 @@
#define CATCH_CONFIG_FAST_COMPILE #define CATCH_CONFIG_FAST_COMPILE
#include <catch2/catch.hpp> #include <catch2/catch.hpp>
#include <array>
#include <thread> #include <thread>
#include <numeric> #include <numeric>
#include <cstring> #include <cstring>
@@ -693,6 +694,22 @@ TEST_CASE("promise") {
REQUIRE(call_then_only_once == 1); REQUIRE(call_then_only_once == 1);
} }
{
auto p1 = pr::promise<int>();
auto p2 = pr::promise<int>();
int call_then_only_once = 0;
pr::make_all_promise(std::array<pr::promise<int>, 2>{p1, p2})
.then([&call_then_only_once](const std::vector<int>& c){
(void)c;
++call_then_only_once;
});
p1.resolve(1);
p2.resolve(2);
REQUIRE(call_then_only_once == 1);
}
{ {
class o_t { class o_t {
public: public:
@@ -749,6 +766,26 @@ TEST_CASE("promise") {
REQUIRE(check_42_int == 42); REQUIRE(check_42_int == 42);
REQUIRE(call_then_only_once == 1); REQUIRE(call_then_only_once == 1);
} }
{
auto p1 = pr::promise<int>();
auto p2 = pr::promise<int>();
int check_42_int = 0;
int call_then_only_once = 0;
pr::make_race_promise(std::array<pr::promise<int>,2>{p1, p2})
.then([&check_42_int, &call_then_only_once](const int& v){
check_42_int = v;
++call_then_only_once;
});
p2.resolve(42);
REQUIRE(check_42_int == 42);
REQUIRE(call_then_only_once == 1);
p1.resolve(84);
REQUIRE(check_42_int == 42);
REQUIRE(call_then_only_once == 1);
}
{ {
class o_t { class o_t {
public: public: