mirror of
https://github.com/Zygo/bees.git
synced 2025-05-17 13:25:45 +02:00
d2ecb4c9ea
NamedPtr provides reference-counted handles to named objects. The object is created the first time the associated name is used, and stored under the associated name until the last handle is destroyed. NamedPtr may itself be destroyed while handles are still active. This template is intended to replace ResourceHandle with a more general and less invasive implementation. Signed-off-by: Zygo Blaxell <bees@furryterror.org>
85 lines
1.8 KiB
C++
85 lines
1.8 KiB
C++
#include "tests.h"
|
|
#include "crucible/error.h"
|
|
#include "crucible/namedptr.h"
|
|
|
|
#include <cassert>
|
|
#include <set>
|
|
|
|
using namespace crucible;
|
|
|
|
struct named_thing {
|
|
static set<named_thing*> s_set;
|
|
int m_a, m_b;
|
|
named_thing() = delete;
|
|
named_thing(const named_thing &that) :
|
|
m_a(that.m_a),
|
|
m_b(that.m_b)
|
|
{
|
|
cerr << "named_thing(" << m_a << ", " << m_b << ") " << this << " copied from " << &that << "." << endl;
|
|
auto rv = s_set.insert(this);
|
|
THROW_CHECK1(runtime_error, *rv.first, rv.second);
|
|
}
|
|
named_thing(int a, int b) :
|
|
m_a(a), m_b(b)
|
|
{
|
|
cerr << "named_thing(" << a << ", " << b << ") " << this << " constructed." << endl;
|
|
auto rv = s_set.insert(this);
|
|
THROW_CHECK1(runtime_error, *rv.first, rv.second);
|
|
}
|
|
~named_thing() {
|
|
auto rv = s_set.erase(this);
|
|
assert(rv == 1);
|
|
cerr << "named_thing(" << m_a << ", " << m_b << ") " << this << " destroyed." << endl;
|
|
m_a = ~m_a;
|
|
m_b = ~m_b;
|
|
}
|
|
void check(int a, int b) {
|
|
THROW_CHECK2(runtime_error, m_a, a, m_a == a);
|
|
THROW_CHECK2(runtime_error, m_b, b, m_b == b);
|
|
}
|
|
static void check_empty() {
|
|
THROW_CHECK1(runtime_error, s_set.size(), s_set.empty());
|
|
}
|
|
};
|
|
|
|
set<named_thing*> named_thing::s_set;
|
|
|
|
static
|
|
void
|
|
test_namedptr()
|
|
{
|
|
NamedPtr<named_thing, int, int> names;
|
|
names.func([](int a, int b) -> shared_ptr<named_thing> { return make_shared<named_thing>(a, b); });
|
|
|
|
auto a_3_5 = names(3, 5);
|
|
auto b_3_5 = names(3, 5);
|
|
{
|
|
auto c_2_7 = names(2, 7);
|
|
b_3_5 = a_3_5;
|
|
a_3_5->check(3, 5);
|
|
b_3_5->check(3, 5);
|
|
c_2_7->check(2, 7);
|
|
}
|
|
auto d_2_7 = names(2, 7);
|
|
a_3_5->check(3, 5);
|
|
a_3_5.reset();
|
|
b_3_5->check(3, 5);
|
|
d_2_7->check(2, 7);
|
|
}
|
|
|
|
static
|
|
void
|
|
test_leak()
|
|
{
|
|
named_thing::check_empty();
|
|
}
|
|
|
|
int
|
|
main(int, char**)
|
|
{
|
|
RUN_A_TEST(test_namedptr());
|
|
RUN_A_TEST(test_leak());
|
|
|
|
exit(EXIT_SUCCESS);
|
|
}
|