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examples/xtd.core.examples/threading/manual_reset_event/CMakeLists.txt
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| cmake_minimum_required(VERSION 3.5) | ||
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| project(manual_reset_event) | ||
| find_package(xtd REQUIRED) | ||
| add_sources(README.md src/manual_reset_event.cpp) | ||
| target_type(CONSOLE_APPLICATION) |
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examples/xtd.core.examples/threading/manual_reset_event/README.md
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| # manual_reset_event | ||
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| Shows how to use [xtd::threading::manual_reset_event](https://gammasoft71.github.io/xtd/reference_guides/latest/classxtd_1_1threading_1_1manual_reset_event.html) class. | ||
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| ## Sources | ||
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| [src/manual_reset_event.cpp](src/manual_reset_event.cpp) | ||
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| [CMakeLists.txt](CMakeLists.txt) | ||
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| # Build and run | ||
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| Open "Command Prompt" or "Terminal". Navigate to the folder that contains the project and type the following: | ||
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| ```cmake | ||
| xtdc run | ||
| ``` | ||
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| # Output | ||
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| ``` | ||
| Start 3 named threads that block on a ManualresetEvent: | ||
| Thread_0 starts and calls mre.WaitOne() | ||
| Thread_2 starts and calls mre.WaitOne() | ||
| Thread_1 starts and calls mre.WaitOne() | ||
| When all three threads have started, press Enter to call set() | ||
| to release all the threads. | ||
| Thread_2 ends. | ||
| Thread_0 ends. | ||
| Thread_1 ends. | ||
| When a ManualresetEvent is signaled, threads that call WaitOne() | ||
| do not block. Press Enter to show this. | ||
| Thread_3 starts and calls mre.WaitOne() | ||
| Thread_4 starts and calls mre.WaitOne() | ||
| Thread_3 ends. | ||
| Thread_4 ends. | ||
| Press Enter to call reset(), so that threads once again block | ||
| when they call WaitOne(). | ||
| Thread_5 starts and calls mre.WaitOne() | ||
| Press Enter to call set() and conclude the demo. | ||
| Thread_5 ends. | ||
| ``` |
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examples/xtd.core.examples/threading/manual_reset_event/src/manual_reset_event.cpp
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| #include <xtd/threading/manual_reset_event> | ||
| #include <xtd/threading/thread> | ||
| #include <xtd/console> | ||
| #include <xtd/startup> | ||
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| using namespace xtd; | ||
| using namespace xtd::threading; | ||
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| namespace manual_reset_event_example { | ||
| class program { | ||
| public: | ||
| static void main() { | ||
| console::write_line("\nStart 3 named threads that block on a ManualresetEvent:\n"); | ||
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| for(auto i = 0; i <= 2; ++i) { | ||
| auto t = thread {thread_start {thread_proc}}; | ||
| t.name(ustring::format("Thread_{}", i)); | ||
| t.start(); | ||
| } | ||
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| thread::sleep(500); | ||
| console::write_line("\nWhen all three threads have started, press Enter to call set()" | ||
| "\nto release all the threads.\n"); | ||
| console::read_line(); | ||
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| mre.set(); | ||
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| thread::sleep(500); | ||
| console::write_line("\nWhen a ManualresetEvent is signaled, threads that call WaitOne()" | ||
| "\ndo not block. Press Enter to show this.\n"); | ||
| console::read_line(); | ||
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| for(auto i = 3; i <= 4; ++i) { | ||
| auto t = thread {thread_start {thread_proc}}; | ||
| t.name(ustring::format("Thread_{}", i)); | ||
| t.start(); | ||
| } | ||
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| thread::sleep(500); | ||
| console::write_line("\nPress Enter to call reset(), so that threads once again block" | ||
| "\nwhen they call WaitOne().\n"); | ||
| console::read_line(); | ||
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| mre.reset(); | ||
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| // Start a thread that waits on the ManualresetEvent. | ||
| auto t5 = thread {thread_start {thread_proc}}; | ||
| t5.name("Thread_5"); | ||
| t5.start(); | ||
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| thread::sleep(500); | ||
| console::write_line("\nPress Enter to call set() and conclude the demo."); | ||
| console::read_line(); | ||
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| mre.set(); | ||
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| // If you run this example in Visual Studio, uncomment the following line: | ||
| //console::read_line(); | ||
| } | ||
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| private: | ||
| // mre is used to block and release threads manually. It is | ||
| // created in the unsignaled state. | ||
| inline static manual_reset_event mre {false}; | ||
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| static void thread_proc() { | ||
| ustring name = thread::current_thread().name(); | ||
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| console::write_line(name + " starts and calls mre.WaitOne()"); | ||
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| mre.wait_one(); | ||
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| console::write_line(name + " ends."); | ||
| } | ||
| }; | ||
| } | ||
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| startup_(manual_reset_event_example::program); | ||
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| // This example produces output similar to the following: | ||
| // | ||
| // Start 3 named threads that block on a ManualresetEvent: | ||
| // | ||
| // Thread_0 starts and calls mre.WaitOne() | ||
| // Thread_2 starts and calls mre.WaitOne() | ||
| // Thread_1 starts and calls mre.WaitOne() | ||
| // | ||
| // When all three threads have started, press Enter to call set() | ||
| // to release all the threads. | ||
| // | ||
| // | ||
| // Thread_2 ends. | ||
| // Thread_0 ends. | ||
| // Thread_1 ends. | ||
| // | ||
| // When a ManualresetEvent is signaled, threads that call WaitOne() | ||
| // do not block. Press Enter to show this. | ||
| // | ||
| // | ||
| // Thread_3 starts and calls mre.WaitOne() | ||
| // Thread_4 starts and calls mre.WaitOne() | ||
| // Thread_3 ends. | ||
| // Thread_4 ends. | ||
| // | ||
| // Press Enter to call reset(), so that threads once again block | ||
| // when they call WaitOne(). | ||
| // | ||
| // | ||
| // Thread_5 starts and calls mre.WaitOne() | ||
| // | ||
| // Press Enter to call set() and conclude the demo. | ||
| // | ||
| // Thread_5 ends. |