fcontext_test.cpp

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// Copyright 2023 owent
 
#include <libcopp/utils/config/libcopp_build_features.h>
 
#include <cstdio>
#include <cstring>
#include <iostream>
 
#if defined(LIBCOPP_MACRO_USE_VALGRIND)
#  include <valgrind/valgrind.h>
#endif
 
#include "frame/test_macros.h"
#include "libcopp/fcontext/all.hpp"
 
copp::fcontext::fcontext_t test_core_fcontext_main_func, test_core_fcontext_a_func, test_core_fcontext_b_func;
char test_core_fcontext_stack_a[128 * 1024] = {0};
char test_core_fcontext_stack_b[128 * 1024] = {0};
int g_test_core_fcontext_status = 0;
 
void test_core_fcontext_func_a(LIBCOPP_COPP_NAMESPACE_ID::fcontext::transfer_t src) {
  test_core_fcontext_main_func = src.fctx;
 
  copp::fcontext::fcontext_t* fc = reinterpret_cast<copp::fcontext::fcontext_t*>(src.data);
 
  ++g_test_core_fcontext_status;
  CASE_EXPECT_EQ(g_test_core_fcontext_status, 2);
  CASE_EXPECT_EQ(fc, &test_core_fcontext_a_func);
 
  src = copp::fcontext::copp_jump_fcontext_v2(test_core_fcontext_b_func, &test_core_fcontext_b_func);
  fc = reinterpret_cast<copp::fcontext::fcontext_t*>(src.data);
  CASE_EXPECT_EQ(fc, &test_core_fcontext_b_func);
  test_core_fcontext_b_func = src.fctx;
 
  ++g_test_core_fcontext_status;
  CASE_EXPECT_EQ(g_test_core_fcontext_status, 4);
 
  copp::fcontext::copp_jump_fcontext_v2(test_core_fcontext_main_func, &test_core_fcontext_main_func);
}
 
void test_core_fcontext_func_b(LIBCOPP_COPP_NAMESPACE_ID::fcontext::transfer_t src) {
  ++g_test_core_fcontext_status;
  CASE_EXPECT_EQ(g_test_core_fcontext_status, 3);
 
  copp::fcontext::fcontext_t* fc = reinterpret_cast<copp::fcontext::fcontext_t*>(src.data);
  CASE_EXPECT_EQ(fc, &test_core_fcontext_b_func);
 
  test_core_fcontext_a_func = src.fctx;
  copp::fcontext::copp_jump_fcontext_v2(test_core_fcontext_a_func, fc);
}
 
CASE_TEST(core, fcontext) {
#if defined(LIBCOPP_MACRO_USE_VALGRIND)
  unsigned valgrind_stack_id_a = VALGRIND_STACK_REGISTER(
      test_core_fcontext_stack_a, test_core_fcontext_stack_a + sizeof(test_core_fcontext_stack_a));
  unsigned valgrind_stack_id_b = VALGRIND_STACK_REGISTER(
      test_core_fcontext_stack_b, test_core_fcontext_stack_b + sizeof(test_core_fcontext_stack_b));
#endif
  ++g_test_core_fcontext_status;
  CASE_EXPECT_EQ(g_test_core_fcontext_status, 1);
 
  test_core_fcontext_a_func =
      copp::fcontext::copp_make_fcontext_v2(test_core_fcontext_stack_a + sizeof(test_core_fcontext_stack_a),
                                            sizeof(test_core_fcontext_stack_a), test_core_fcontext_func_a);
  test_core_fcontext_b_func =
      copp::fcontext::copp_make_fcontext_v2(test_core_fcontext_stack_b + sizeof(test_core_fcontext_stack_b),
                                            sizeof(test_core_fcontext_stack_b), test_core_fcontext_func_b);
 
  copp::fcontext::copp_jump_fcontext_v2(test_core_fcontext_a_func, &test_core_fcontext_a_func);
 
  ++g_test_core_fcontext_status;
  CASE_EXPECT_EQ(g_test_core_fcontext_status, 5);
 
#if defined(LIBCOPP_MACRO_USE_VALGRIND)
  VALGRIND_STACK_DEREGISTER(valgrind_stack_id_a);
  VALGRIND_STACK_DEREGISTER(valgrind_stack_id_b);
#endif
}