diff options
Diffstat (limited to 'lib/asio/detail/impl/service_registry.ipp')
-rw-r--r-- | lib/asio/detail/impl/service_registry.ipp | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/lib/asio/detail/impl/service_registry.ipp b/lib/asio/detail/impl/service_registry.ipp deleted file mode 100644 index a465033..0000000 --- a/lib/asio/detail/impl/service_registry.ipp +++ /dev/null @@ -1,197 +0,0 @@ -// -// detail/impl/service_registry.ipp -// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -// -// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com) -// -// Distributed under the Boost Software License, Version 1.0. (See accompanying -// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -// - -#ifndef ASIO_DETAIL_IMPL_SERVICE_REGISTRY_IPP -#define ASIO_DETAIL_IMPL_SERVICE_REGISTRY_IPP - -#if defined(_MSC_VER) && (_MSC_VER >= 1200) -# pragma once -#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) - -#include "asio/detail/config.hpp" -#include <vector> -#include "asio/detail/service_registry.hpp" -#include "asio/detail/throw_exception.hpp" - -#include "asio/detail/push_options.hpp" - -namespace asio { -namespace detail { - -service_registry::service_registry(execution_context& owner) - : owner_(owner), - first_service_(0) -{ -} - -service_registry::~service_registry() -{ -} - -void service_registry::shutdown_services() -{ - execution_context::service* service = first_service_; - while (service) - { - service->shutdown(); - service = service->next_; - } -} - -void service_registry::destroy_services() -{ - while (first_service_) - { - execution_context::service* next_service = first_service_->next_; - destroy(first_service_); - first_service_ = next_service; - } -} - -void service_registry::notify_fork(execution_context::fork_event fork_ev) -{ - // Make a copy of all of the services while holding the lock. We don't want - // to hold the lock while calling into each service, as it may try to call - // back into this class. - std::vector<execution_context::service*> services; - { - asio::detail::mutex::scoped_lock lock(mutex_); - execution_context::service* service = first_service_; - while (service) - { - services.push_back(service); - service = service->next_; - } - } - - // If processing the fork_prepare event, we want to go in reverse order of - // service registration, which happens to be the existing order of the - // services in the vector. For the other events we want to go in the other - // direction. - std::size_t num_services = services.size(); - if (fork_ev == execution_context::fork_prepare) - for (std::size_t i = 0; i < num_services; ++i) - services[i]->notify_fork(fork_ev); - else - for (std::size_t i = num_services; i > 0; --i) - services[i - 1]->notify_fork(fork_ev); -} - -void service_registry::init_key_from_id(execution_context::service::key& key, - const execution_context::id& id) -{ - key.type_info_ = 0; - key.id_ = &id; -} - -bool service_registry::keys_match( - const execution_context::service::key& key1, - const execution_context::service::key& key2) -{ - if (key1.id_ && key2.id_) - if (key1.id_ == key2.id_) - return true; - if (key1.type_info_ && key2.type_info_) - if (*key1.type_info_ == *key2.type_info_) - return true; - return false; -} - -void service_registry::destroy(execution_context::service* service) -{ - delete service; -} - -execution_context::service* service_registry::do_use_service( - const execution_context::service::key& key, - factory_type factory, void* owner) -{ - asio::detail::mutex::scoped_lock lock(mutex_); - - // First see if there is an existing service object with the given key. - execution_context::service* service = first_service_; - while (service) - { - if (keys_match(service->key_, key)) - return service; - service = service->next_; - } - - // Create a new service object. The service registry's mutex is not locked - // at this time to allow for nested calls into this function from the new - // service's constructor. - lock.unlock(); - auto_service_ptr new_service = { factory(owner) }; - new_service.ptr_->key_ = key; - lock.lock(); - - // Check that nobody else created another service object of the same type - // while the lock was released. - service = first_service_; - while (service) - { - if (keys_match(service->key_, key)) - return service; - service = service->next_; - } - - // Service was successfully initialised, pass ownership to registry. - new_service.ptr_->next_ = first_service_; - first_service_ = new_service.ptr_; - new_service.ptr_ = 0; - return first_service_; -} - -void service_registry::do_add_service( - const execution_context::service::key& key, - execution_context::service* new_service) -{ - if (&owner_ != &new_service->context()) - asio::detail::throw_exception(invalid_service_owner()); - - asio::detail::mutex::scoped_lock lock(mutex_); - - // Check if there is an existing service object with the given key. - execution_context::service* service = first_service_; - while (service) - { - if (keys_match(service->key_, key)) - asio::detail::throw_exception(service_already_exists()); - service = service->next_; - } - - // Take ownership of the service object. - new_service->key_ = key; - new_service->next_ = first_service_; - first_service_ = new_service; -} - -bool service_registry::do_has_service( - const execution_context::service::key& key) const -{ - asio::detail::mutex::scoped_lock lock(mutex_); - - execution_context::service* service = first_service_; - while (service) - { - if (keys_match(service->key_, key)) - return true; - service = service->next_; - } - - return false; -} - -} // namespace detail -} // namespace asio - -#include "asio/detail/pop_options.hpp" - -#endif // ASIO_DETAIL_IMPL_SERVICE_REGISTRY_IPP |