mirror of
https://github.com/slsdetectorgroup/slsDetectorPackage.git
synced 2025-04-22 14:38:14 +02:00
130 lines
2.9 KiB
C++
130 lines
2.9 KiB
C++
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#include "SharedMemory.h"
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#include "catch.hpp"
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#include "string_utils.h"
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#include <iostream>
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struct Data {
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int x;
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double y;
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char mess[50];
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};
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using namespace sls;
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TEST_CASE("Create SharedMemory read and write") {
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SharedMemory<Data> shm(0, -1);
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shm.CreateSharedMemory();
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CHECK(shm.GetName() == "/slsDetectorPackage_multi_0");
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shm()->x = 3;
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shm()->y = 5.7;
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sls::strcpy_safe(shm()->mess, "Some string");
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CHECK(shm()->x == 3);
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CHECK(shm()->y == 5.7);
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CHECK(std::string(shm()->mess) == "Some string");
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shm.UnmapSharedMemory();
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shm.RemoveSharedMemory();
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CHECK(shm.IsExisting() == false);
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}
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TEST_CASE("Open existing SharedMemory and read") {
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{
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SharedMemory<double> shm(0, -1);
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shm.CreateSharedMemory();
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*shm() = 5.3;
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}
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SharedMemory<double> shm2(0, -1);
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shm2.OpenSharedMemory();
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CHECK(*shm2() == 5.3);
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shm2.RemoveSharedMemory();
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}
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TEST_CASE("Creating a second shared memory with the same name throws") {
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SharedMemory<double> shm0(0, -1);
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SharedMemory<double> shm1(0, -1);
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shm0.CreateSharedMemory();
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CHECK_THROWS(shm1.CreateSharedMemory());
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shm0.RemoveSharedMemory();
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}
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TEST_CASE("Open two shared memories to the same place") {
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//Create the first shared memory
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SharedMemory<Data> shm(0, -1);
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shm.CreateSharedMemory();
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shm()->x = 5;
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CHECK(shm()->x == 5);
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//Open the second shared memory with the same name
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SharedMemory<Data> shm2(0, -1);
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shm2.OpenSharedMemory();
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CHECK(shm2()->x == 5);
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CHECK(shm.GetName() == shm2.GetName());
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//Check that they still point to the same place
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shm2()->x = 7;
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CHECK(shm()->x == 7);
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//Remove only needs to be done once since they refer
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//to the same memory
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shm2.RemoveSharedMemory();
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CHECK(shm.IsExisting() == false);
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CHECK(shm2.IsExisting() == false);
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}
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TEST_CASE("Move SharedMemory"){
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SharedMemory<Data> shm(0,-1);
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CHECK(shm.GetName() == "/slsDetectorPackage_multi_0");
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shm.CreateSharedMemory();
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shm()->x = 9;
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CHECK(shm.size()== sizeof(Data));
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SharedMemory<Data> shm2(1,-1);
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shm2 = std::move(shm); //shm is now a moved from object!
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CHECK(shm2()->x == 9);
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CHECK(shm() == nullptr);
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CHECK(shm.size() == 0);
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CHECK(shm2.GetName() == "/slsDetectorPackage_multi_0");
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shm2.RemoveSharedMemory();
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}
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TEST_CASE("Create several shared memories") {
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constexpr int N = 5;
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std::vector<SharedMemory<int>> v;
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v.reserve(N);
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for (int i = 0; i != N; ++i) {
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v.emplace_back(i, -1);
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CHECK(v[i].IsExisting() == false);
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v[i].CreateSharedMemory();
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*v[i]() = i;
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CHECK(*v[i]() == i);
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}
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for (int i = 0; i != N; ++i) {
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CHECK(*v[i]() == i);
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CHECK(v[i].GetName() == std::string("/slsDetectorPackage_multi_")+std::to_string(i));
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}
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for (int i = 0; i != N; ++i) {
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v[i].RemoveSharedMemory();
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CHECK(v[i].IsExisting() == false);
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}
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} |