diff options
Diffstat (limited to 'ace/Remote_Tokens.cpp')
| -rw-r--r-- | ace/Remote_Tokens.cpp | 428 |
1 files changed, 0 insertions, 428 deletions
diff --git a/ace/Remote_Tokens.cpp b/ace/Remote_Tokens.cpp deleted file mode 100644 index 4ff3578ca23..00000000000 --- a/ace/Remote_Tokens.cpp +++ /dev/null @@ -1,428 +0,0 @@ -// Remote_Tokens.cpp -// $Id$ - -#define ACE_BUILD_DLL -#include "ace/Remote_Tokens.h" -#include "ace/Singleton.h" - -#if !defined (__ACE_INLINE__) -#include "ace/Remote_Tokens.i" -#endif /* __ACE_INLINE__ */ - -#if defined (ACE_MT_SAFE) && (ACE_MT_SAFE != 0) -typedef ACE_Thread_Mutex ACE_TSS_CONNECTION_MUTEX; -#else -typedef ACE_Null_Mutex ACE_TSS_CONNECTION_MUTEX; -#endif /* ACE_MT_SAFE */ - -// Make a typedef to simplify access to the Singleton below. -typedef ACE_Singleton<ACE_TSS_Connection, ACE_TSS_CONNECTION_MUTEX> - ACE_Token_Connections; - -// Initialize the statics from ACE_TSS_Connection; -ACE_INET_Addr ACE_TSS_Connection::server_address_; - -// ************************************************************ - -void -ACE_TSS_Connection::set_server_address (const ACE_INET_Addr &server_address) -{ - ACE_TRACE ("ACE_TSS_Connection::set_server_address"); - server_address_ = server_address; -} - -// Necessary to make some compilers work... -ACE_TSS_Connection::ACE_TSS_Connection (void) -{ - ACE_TRACE ("ACE_TSS_Connection::ACE_TSS_Connection"); -} - -ACE_TSS_Connection::~ACE_TSS_Connection (void) -{ - ACE_TRACE ("ACE_TSS_Connection::~ACE_TSS_Connection"); -} - -ACE_SOCK_Stream * -ACE_TSS_Connection::get_connection (void) -{ - return ACE_TSS<ACE_SOCK_Stream>::operator-> (); -} - -ACE_SOCK_Stream * -ACE_TSS_Connection::make_TSS_TYPE (void) const -{ - ACE_TRACE ("ACE_TSS_Connection::make_TSS_TYPE"); - - ACE_SOCK_Connector connector; - ACE_SOCK_Stream *stream = 0; - - ACE_NEW_RETURN (stream, ACE_SOCK_Stream, 0); - - if (connector.connect (*stream, server_address_) == -1) - { - delete stream; - errno = ECONNREFUSED; - return 0; - } - - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("ACE_TSS_Connection new connection\n"))); - return stream; -} - -ACE_TSS_Connection::operator ACE_SOCK_Stream *(void) -{ - return this->get_connection (); -} - -void -ACE_TSS_Connection::dump (void) const -{ - ACE_TRACE ("ACE_TSS_Connection::dump"); - ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this)); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("ACE_TSS_Connection::dump:\n"))); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("server_address_\n"))); - server_address_.dump (); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("base:\n"))); - ACE_TSS<ACE_SOCK_Stream>::dump (); - ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP)); -} - -ACE_Remote_Token_Proxy::ACE_Remote_Token_Proxy (void) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::ACE_Remote_Token_Proxy"); -} - -ACE_Remote_Token_Proxy::~ACE_Remote_Token_Proxy (void) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::~ACE_Remote_Token_Proxy"); -} - -int -ACE_Remote_Token_Proxy::open (const char *name, - int ignore_deadlock, - int debug) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::open"); - ignore_shadow_deadlock_ = ignore_deadlock; - return ACE_Token_Proxy::open (name, 0, debug); -} - -void -ACE_Remote_Token_Proxy::set_server_address (const ACE_INET_Addr &server_address) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::set_server_address"); - ACE_Token_Connections::instance ()->set_server_address (server_address); -} - -int -ACE_Remote_Token_Proxy::initiate_connection (void) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::initiate_connection"); - if (token_ == 0) - { - errno = ENOENT; - ACE_ERROR_RETURN ((LM_ERROR, "ACE_Remote_Token_Proxy not open.\n"), -1); - } - - ACE_SOCK_Stream *peer = ACE_Token_Connections::instance ()->get_connection (); - return peer == 0 ? 0 : 1; -} - -// Do the work of sending a request and getting a reply. - -int -ACE_Remote_Token_Proxy::request_reply (ACE_Token_Request &request, - ACE_Synch_Options &) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::request_reply"); - void *buffer; - ssize_t length; - - if ((length = request.encode (buffer)) == -1) - ACE_ERROR_RETURN ((LM_ERROR, ASYS_TEXT ("%p\n"), ASYS_TEXT ("encode failed")), -1); - - ACE_SOCK_Stream *peer = ACE_Token_Connections::instance ()->get_connection (); - - if (peer == 0) - return -1; - - // Transmit request via a blocking send. - - if (peer->send_n (buffer, length) != length) - ACE_ERROR_RETURN ((LM_ERROR, ASYS_TEXT ("%p\n"), ASYS_TEXT ("send_n failed")), -1); - else - { - ACE_Token_Reply reply; - - // Receive reply via blocking read. - - if (peer->recv (&reply, sizeof reply) == -1) - ACE_ERROR_RETURN ((LM_ERROR, ASYS_TEXT ("%p\n"), ASYS_TEXT ("recv failed")), -1); - - if (reply.decode () == -1) - ACE_ERROR_RETURN ((LM_ERROR, ASYS_TEXT ("%p\n"), ASYS_TEXT ("decode failed")), -1); - - errno = int (reply.errnum ()); - if (errno != 0) - ACE_RETURN (-1); - else - return 0; - } -} - -int -ACE_Remote_Token_Proxy::acquire (int notify, - void (*sleep_hook)(void *), - ACE_Synch_Options &options) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::acquire"); - - // First grab the local shadow mutex. - if (ACE_Token_Proxy::acquire (notify, - sleep_hook, - ACE_Synch_Options::asynch) == -1) - { - // Acquire failed, deal with it... - switch (errno) - { - case EWOULDBLOCK : - // Whoah, we detected wouldblock via the shadow mutex! - if (debug_) - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("(%t) shadow: acquire will block, owner is %s\n"), - this->token_->owner_id ())); - // No error, but would block, - break; - - case EDEADLK : - if (debug_) - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("(%t) shadow: deadlock detected\n"))); - - if (ignore_shadow_deadlock_) - break; - else - { - errno = EDEADLK; - ACE_RETURN (-1); - } - - default : - ACE_ERROR_RETURN ((LM_ERROR, - "(%t) %p shadow acquire failed\n", - "ACE_Remote_Token_Proxy"), - -1); - } - } - - ACE_Token_Request request (token_->type (), - this->type (), - ACE_Token_Request::ACQUIRE, - this->name (), - this->client_id (), - options); - - request.notify (notify); - - int result = this->request_reply (request, options); - - if (result == -1) - { - // Update the local shadow copy. - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("error on remote acquire, releasing shadow mutex.\n"))); - ACE_Token_Proxy::release (); - } - else - { - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("(%t) acquired %s remotely.\n"), this->name ())); - // Our shadow call may have failed. However, it's still a race - // to the remote server. If we beat the client which holds the - // local token, we need to fix things locally to reflect the - // actual ownership. All that should happen is that our waiter - // is moved to the front of the waiter list. - token_->make_owner (waiter_); - } - - return result; -} - -int -ACE_Remote_Token_Proxy::tryacquire (void (*sleep_hook)(void *)) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::tryacquire"); - - // If we can detect locally that the tryacquire will fail, there is - // no need to go remote. - if (ACE_Token_Proxy::tryacquire (sleep_hook) == -1) - { - if (debug_) - { - int error = errno; - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("shadow try acquire failed\n"))); - errno = error; - } - - return -1; - } - - ACE_Token_Request request (token_->type (), - this->type (), - ACE_Token_Request::RELEASE, - this->name (), - this->client_id (), - ACE_Synch_Options::synch); - - return this->request_reply (request, - ACE_Synch_Options::synch); -} - -int -ACE_Remote_Token_Proxy::renew (int requeue_position, - ACE_Synch_Options &options) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::renew"); - - if (ACE_Token_Proxy::renew (requeue_position, - ACE_Synch_Options::asynch) == -1) - { - // Check for error. - if (errno != EWOULDBLOCK) - return -1; - else if (debug_) - ACE_DEBUG ((LM_DEBUG, - "(%t) shadow: renew would block. owner %s.\n", - this->token_->owner_id ())); - } - - ACE_Token_Request request (token_->type (), - this->type (), - ACE_Token_Request::RENEW, - this->name (), - this->client_id (), - options); - - request.requeue_position (requeue_position); - - int result = this->request_reply (request, options); - - if (result == -1) - { - int error = errno; - ACE_Token_Proxy::release (); - errno = error; - ACE_ERROR_RETURN ((LM_ERROR, "%p error on remote renew, releasing shadow mutex.\n", - "ACE_Remote_Token_Proxy"), -1); - } - else - { - if (debug_) - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("(%t) renewed %s remotely.\n"), this->name ())); - // Make sure that the local shadow reflects our new ownership. - token_->make_owner (waiter_); - return result; - } -} - -int -ACE_Remote_Token_Proxy::release (ACE_Synch_Options &options) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::release"); - - ACE_Token_Request request (token_->type (), - this->type (), - ACE_Token_Request::RELEASE, - this->name (), - this->client_id (), - options); - - int result = this->request_reply (request, options); - if (result == 0) - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("(%t) released %s remotely.\n"), this->name ())); - - // whether success or failure, we're going to release the shadow. - // If race conditions exist such that we are no longer the owner, - // this release will perform a remove. - if (ACE_Token_Proxy::release () == -1) - ACE_ERROR ((LM_ERROR, "(%t) shadow: release failed\n")); - - return result; -} - -int -ACE_Remote_Token_Proxy::remove (ACE_Synch_Options &) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::remove"); - return 0; -} - -void -ACE_Remote_Token_Proxy::token_acquired (ACE_TPQ_Entry *) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::token_acquired"); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("(%t) shadow token %s acquired\n"), - this->client_id (), - this->name ())); - // ACE_Token_Proxy::token_acquired (vp); -} - -const char* -ACE_Remote_Token_Proxy::owner_id (void) -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::owner_id"); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("owner_id called\n"))); - // @@ special operation - return 0; -} - -void -ACE_Remote_Token_Proxy::dump (void) const -{ - ACE_TRACE ("ACE_Remote_Token_Proxy::owner_id"); - ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this)); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("ACE_Tokens::dump:\n") - " ignore_shadow_deadlock_ = %d\n", - ignore_shadow_deadlock_)); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("base:\n"))); - ACE_Token_Proxy::dump (); - ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP)); -} - -void -ACE_Remote_Mutex::dump (void) const -{ - ACE_TRACE ("ACE_Remote_Mutex::dump"); - ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this)); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("ACE_Remote_Mutex::dump:\n"))); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("base:\n"))); - ACE_Remote_Token_Proxy::dump (); - ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP)); -} - -void -ACE_Remote_RLock::dump (void) const -{ - ACE_TRACE ("ACE_Remote_RLock::dump"); - ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this)); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("ACE_Remote_RLock::dump:\n"))); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("base:\n"))); - ACE_Remote_Token_Proxy::dump (); - ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP)); -} - -void -ACE_Remote_WLock::dump (void) const -{ - ACE_TRACE ("ACE_Remote_WLock::dump"); - ACE_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this)); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("ACE_Remote_WLock::dump:\n"))); - ACE_DEBUG ((LM_DEBUG, ASYS_TEXT ("base:\n"))); - ACE_Remote_Token_Proxy::dump (); - ACE_DEBUG ((LM_DEBUG, ACE_END_DUMP)); -} - -#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION) -template class ACE_TSS <ACE_SOCK_Stream>; -template class ACE_Singleton <ACE_TSS_Connection, ACE_TSS_CONNECTION_MUTEX>; -#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA) -#pragma instantiate ACE_TSS <ACE_SOCK_Stream> -#pragma instantiate ACE_Singleton <ACE_TSS_Connection, ACE_TSS_CONNECTION_MUTEX> -#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */ - |