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Common: Correct fcontext fibers.

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This commit is contained in:
Fernando Sahmkow 2020-02-10 13:18:23 -04:00
parent e3524d1142
commit 03e4f5dac4
1 changed files with 4 additions and 5 deletions
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9
src/common/fiber.cpp
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@ -12,6 +12,7 @@
namespace Common { namespace Common {
#ifdef _MSC_VER #ifdef _MSC_VER
struct Fiber::FiberImpl { struct Fiber::FiberImpl {
@ -82,7 +83,6 @@ std::shared_ptr<Fiber> Fiber::ThreadToFiber() {
} }
#else #else
constexpr std::size_t default_stack_size = 1024 * 1024 * 4; // 4MB constexpr std::size_t default_stack_size = 1024 * 1024 * 4; // 4MB
struct alignas(64) Fiber::FiberImpl { struct alignas(64) Fiber::FiberImpl {
@ -108,9 +108,8 @@ void Fiber::FiberStartFunc(boost::context::detail::transfer_t transfer)
Fiber::Fiber(std::function<void(void*)>&& entry_point_func, void* start_parameter) Fiber::Fiber(std::function<void(void*)>&& entry_point_func, void* start_parameter)
: guard{}, entry_point{std::move(entry_point_func)}, start_parameter{start_parameter}, previous_fiber{} { : guard{}, entry_point{std::move(entry_point_func)}, start_parameter{start_parameter}, previous_fiber{} {
impl = std::make_unique<FiberImpl>(); impl = std::make_unique<FiberImpl>();
auto start_func = std::bind(&Fiber::start, this); impl->context = boost::context::detail::make_fcontext(impl->stack.data(), impl->stack.size(),
impl->context = FiberStartFunc);
boost::context::detail::make_fcontext(impl->stack.data(), impl->stack.size(), &start_func);
} }
Fiber::Fiber() : guard{}, entry_point{}, start_parameter{}, previous_fiber{} { Fiber::Fiber() : guard{}, entry_point{}, start_parameter{}, previous_fiber{} {
@ -139,7 +138,7 @@ void Fiber::YieldTo(std::shared_ptr<Fiber> from, std::shared_ptr<Fiber> to) {
ASSERT_MSG(to != nullptr, "Next fiber is null!"); ASSERT_MSG(to != nullptr, "Next fiber is null!");
to->guard.lock(); to->guard.lock();
to->previous_fiber = from; to->previous_fiber = from;
auto transfer = boost::context::detail::jump_fcontext(to->impl.context, nullptr); auto transfer = boost::context::detail::jump_fcontext(to->impl->context, nullptr);
auto previous_fiber = from->previous_fiber; auto previous_fiber = from->previous_fiber;
ASSERT(previous_fiber != nullptr); ASSERT(previous_fiber != nullptr);
previous_fiber->impl->context = transfer.fctx; previous_fiber->impl->context = transfer.fctx;