Merge pull request #220 from kirkshoop/with_latest_from

add with_latest_from

1 files changed, 85 insertions, 0 deletions

diff --git a/Rx/v2/examples/doxygen/with_latest_from.cpp b/Rx/v2/examples/doxygen/with_latest_from.cpp
new file mode 100644
index 0000000..200f446
--- /dev/null
+++ b/Rx/v2/examples/doxygen/with_latest_from.cpp
@@ -0,0 +1,85 @@
+#include "rxcpp/rx.hpp"
+
+#include "rxcpp/rx-test.hpp"
+#include "catch.hpp"
+
+SCENARIO("with_latest_from sample"){
+    printf("//! [with_latest_from sample]\n");
+    auto o1 = rxcpp::observable<>::interval(std::chrono::milliseconds(2));
+    auto o2 = rxcpp::observable<>::interval(std::chrono::milliseconds(3));
+    auto o3 = rxcpp::observable<>::interval(std::chrono::milliseconds(5));
+    auto values = o1.with_latest_from(o2, o3);
+    values.
+        take(5).
+        subscribe(
+            [](std::tuple<int, int, int> v){printf("OnNext: %d, %d, %d\n", std::get<0>(v), std::get<1>(v), std::get<2>(v));},
+            [](){printf("OnCompleted\n");});
+    printf("//! [with_latest_from sample]\n");
+}
+
+std::string get_pid();
+
+SCENARIO("Coordination with_latest_from sample"){
+    printf("//! [Coordination with_latest_from sample]\n");
+    printf("[thread %s] Start task\n", get_pid().c_str());
+    auto thr = rxcpp::synchronize_event_loop();
+    auto o1 = rxcpp::observable<>::interval(std::chrono::milliseconds(2)).map([](int v) {
+        printf("[thread %s] Source1 OnNext: %d\n", get_pid().c_str(), v);
+        return v;
+    });
+    auto o2 = rxcpp::observable<>::interval(std::chrono::milliseconds(3)).map([](int v) {
+        printf("[thread %s] Source2 OnNext: %d\n", get_pid().c_str(), v);
+        return v;
+    });
+    auto o3 = rxcpp::observable<>::interval(std::chrono::milliseconds(5)).map([](int v) {
+        printf("[thread %s] Source3 OnNext: %d\n", get_pid().c_str(), v);
+        return v;
+    });
+    auto values = o1.with_latest_from(thr, o2, o3);
+    values.
+        take(5).
+        as_blocking().
+        subscribe(
+            [](std::tuple<int, int, int> v){printf("[thread %s] OnNext: %d, %d, %d\n", get_pid().c_str(), std::get<0>(v), std::get<1>(v), std::get<2>(v));},
+            [](){printf("[thread %s] OnCompleted\n", get_pid().c_str());});
+    printf("[thread %s] Finish task\n", get_pid().c_str());
+    printf("//! [Coordination with_latest_from sample]\n");
+}
+
+SCENARIO("Selector with_latest_from sample"){
+    printf("//! [Selector with_latest_from sample]\n");
+    auto o1 = rxcpp::observable<>::interval(std::chrono::milliseconds(2));
+    auto o2 = rxcpp::observable<>::interval(std::chrono::milliseconds(3));
+    auto o3 = rxcpp::observable<>::interval(std::chrono::milliseconds(5));
+    auto values = o1.with_latest_from(
+        [](int v1, int v2, int v3) {
+            return 100 * v1 + 10 * v2 + v3;
+        },
+        o2, o3);
+    values.
+        take(5).
+        subscribe(
+            [](int v){printf("OnNext: %d\n", v);},
+            [](){printf("OnCompleted\n");});
+    printf("//! [Selector with_latest_from sample]\n");
+}
+
+SCENARIO("Coordination+Selector with_latest_from sample"){
+    printf("//! [Coordination+Selector with_latest_from sample]\n");
+    auto o1 = rxcpp::observable<>::interval(std::chrono::milliseconds(2));
+    auto o2 = rxcpp::observable<>::interval(std::chrono::milliseconds(3));
+    auto o3 = rxcpp::observable<>::interval(std::chrono::milliseconds(5));
+    auto values = o1.with_latest_from(
+        rxcpp::observe_on_new_thread(),
+        [](int v1, int v2, int v3) {
+            return 100 * v1 + 10 * v2 + v3;
+        },
+        o2, o3);
+    values.
+        take(5).
+        as_blocking().
+        subscribe(
+            [](int v){printf("OnNext: %d\n", v);},
+            [](){printf("OnCompleted\n");});
+    printf("//! [Coordination+Selector with_latest_from sample]\n");
+}