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// Test Suite for C-API interrupt functions
#include <tut/tut.hpp>
// geos
#include <geos_c.h>
#include <geos/util/Interrupt.h>
// std
#include <thread>
#include "capi_test_utils.h"
namespace tut {
//
// Test Group
//
// Common data used in test cases.
struct test_capiinterrupt_data : public capitest::utility {
static int numcalls;
static int maxcalls;
static GEOSInterruptCallback* nextcb;
static void
interruptNow()
{
GEOS_interruptRequest();
}
static void
countCalls()
{
++numcalls;
if(nextcb) {
(*nextcb)();
}
}
static int
interruptAfterMaxCalls(void* data)
{
return ++*static_cast<int*>(data) >= maxcalls;
}
};
int test_capiinterrupt_data::numcalls = 0;
int test_capiinterrupt_data::maxcalls = 0;
GEOSInterruptCallback* test_capiinterrupt_data::nextcb = nullptr;
typedef test_group<test_capiinterrupt_data> group;
typedef group::object object;
group test_capiinterrupt_group("capi::GEOSInterrupt");
//
// Test Cases
//
/// Test interrupt callback being called
template<>
template<>
void object::test<1>
()
{
numcalls = 0;
initGEOS(notice, notice);
GEOS_interruptRegisterCallback(countCalls);
ensure_equals(numcalls, 0);
GEOSGeometry* geom1 = GEOSGeomFromWKT("LINESTRING(0 0, 1 0)");
ensure("GEOSGeomFromWKT failed", nullptr != geom1);
GEOSGeometry* geom2 = GEOSBuffer(geom1, 1, 8);
ensure("GEOSBuffer failed", nullptr != geom2);
ensure("interrupt callback never called", numcalls > 0);
GEOSGeom_destroy(geom1);
GEOSGeom_destroy(geom2);
GEOS_interruptRegisterCallback(nullptr); /* unregister */
finishGEOS();
}
/// Test interrupt callback being called
template<>
template<>
void object::test<2>
()
{
numcalls = 0;
initGEOS(notice, notice);
GEOS_interruptRegisterCallback(countCalls);
ensure_equals(numcalls, 0);
GEOSGeometry* geom1 = GEOSGeomFromWKT("LINESTRING(0 0, 1 1, 2 2, 4 4)");
GEOSGeometry* geom2 = GEOSGeomFromWKT("LINESTRING(0 0, 1 1.01, 4 4.001)");
ensure("GEOSGeomFromWKT failed", nullptr != geom1);
GEOSGeometry* geom3 = GEOSSnap(geom1, geom2, 0.1);
ensure("GEOSSnap failed", nullptr != geom3);
ensure("interrupt callback never called", numcalls > 0);
GEOSGeom_destroy(geom1);
GEOSGeom_destroy(geom2);
GEOSGeom_destroy(geom3);
GEOS_interruptRegisterCallback(nullptr); /* unregister */
finishGEOS();
}
/// Test interrupt callback being NOT reset by initGEOS
template<>
template<>
void object::test<3>
()
{
numcalls = 0;
GEOS_interruptRegisterCallback(countCalls);
initGEOS(notice, notice);
ensure_equals(numcalls, 0);
GEOSGeometry* geom1 = GEOSGeomFromWKT("LINESTRING(0 0, 1 0)");
ensure("GEOSGeomFromWKT failed", nullptr != geom1);
GEOSGeometry* geom2 = GEOSBuffer(geom1, 1, 8);
ensure("GEOSBufferWithStyle failed", nullptr != geom2);
ensure("interrupt callback never called", numcalls > 0);
GEOSGeom_destroy(geom1);
GEOSGeom_destroy(geom2);
GEOS_interruptRegisterCallback(nullptr);
finishGEOS();
}
/// Test interrupting from callback
template<>
template<>
void object::test<4>
()
{
initGEOS(notice, notice);
GEOSGeometry* geom1 = GEOSGeomFromWKT("LINESTRING(0 0, 1 0)");
ensure("GEOSGeomFromWKT failed", nullptr != geom1);
GEOS_interruptRegisterCallback(interruptNow);
GEOSGeometry* geom2 = GEOSBuffer(geom1, 1, 8);
ensure("GEOSBuffer wasn't interrupted", nullptr == geom2);
GEOS_interruptRegisterCallback(nullptr); /* unregister */
// TODO: check the actual exception ? (sent to notice() callback)
GEOSGeom_destroy(geom1);
finishGEOS();
}
/// Test chaining interrupt callbacks
template<>
template<>
void object::test<5>
()
{
numcalls = 0;
initGEOS(notice, notice);
GEOSGeometry* geom1 = GEOSGeomFromWKT("LINESTRING(0 0, 1 0)");
ensure("GEOSGeomFromWKT failed", nullptr != geom1);
GEOS_interruptRegisterCallback(interruptNow);
nextcb = GEOS_interruptRegisterCallback(countCalls);
GEOSGeometry* geom2 = GEOSBuffer(geom1, 1, 8);
ensure("GEOSBuffer wasn't interrupted", nullptr == geom2);
ensure_equals(numcalls, 1);
GEOS_interruptRegisterCallback(nullptr); /* unregister */
nextcb = nullptr;
GEOSGeom_destroy(geom1);
finishGEOS();
}
// Test callback is thread-local
template<>
template<>
void object::test<6>
()
{
using geos::util::CurrentThreadInterrupt;
maxcalls = 3;
int calls_1 = 0;
int calls_2 = 0;
GEOSContextHandle_t h1 = initGEOS_r(notice, notice);
GEOSContextHandle_t h2 = initGEOS_r(notice, notice);
GEOSContext_setInterruptCallback_r(h1, interruptAfterMaxCalls, &calls_1);
GEOSContext_setInterruptCallback_r(h2, interruptAfterMaxCalls, &calls_2);
// get previously registered callback and verify there was none
// (the context registered its callback only when invoking a function)
ensure(CurrentThreadInterrupt::registerCallback(nullptr, nullptr) == nullptr);
auto buffer = [](GEOSContextHandle_t handle) {
GEOSWKTReader* reader = GEOSWKTReader_create_r(handle);
GEOSGeometry* geom1 = GEOSWKTReader_read_r(handle, reader, "LINESTRING (0 0, 1 0)");
GEOSGeometry* geom2 = GEOSBuffer_r(handle, geom1, 1, 8);
GEOSGeom_destroy_r(handle, geom2);
GEOSGeom_destroy_r(handle, geom1);
GEOSWKTReader_destroy_r(handle, reader);
};
std::thread t1(buffer, h1);
std::thread t2(buffer, h2);
t1.join();
t2.join();
ensure_equals(calls_1, maxcalls);
ensure_equals(calls_2, maxcalls);
// get previously registered callback and verify there was none
// (context unregistered its callback after completing GEOSBuffer)
ensure(CurrentThreadInterrupt::registerCallback(nullptr, nullptr) == nullptr);
finishGEOS_r(h1);
finishGEOS_r(h2);
}
} // namespace tut
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