/usr/include/ace/Connector.cpp is in libace-dev 6.3.3+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 | #ifndef ACE_CONNECTOR_CPP
#define ACE_CONNECTOR_CPP
#include "ace/Connector.h"
#include "ace/ACE.h"
#include "ace/OS_NS_stdio.h"
#include "ace/OS_NS_string.h"
#include "ace/os_include/os_fcntl.h" /* Has ACE_NONBLOCK */
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
ACE_ALLOC_HOOK_DEFINE(ACE_Connector)
template <typename SVC_HANDLER>
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::ACE_NonBlocking_Connect_Handler (ACE_Connector_Base<SVC_HANDLER> &connector,
SVC_HANDLER *sh,
long id)
: connector_ (connector),
svc_handler_ (sh),
cleanup_svc_handler_ (0),
timer_id_ (id)
{
ACE_TRACE ("ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::ACE_NonBlocking_Connect_Handler");
this->reference_counting_policy ().value
(ACE_Event_Handler::Reference_Counting_Policy::ENABLED);
if (this->svc_handler_ != 0 &&
this->svc_handler_->reference_counting_policy ().value () ==
ACE_Event_Handler::Reference_Counting_Policy::ENABLED)
{
// If SVC_HANDLER is reference counted then NBCH holds a reference
// in cleanup_svc_handle_ which is both a pointer to SVC_HANDLER
// and a flag that triggers remove_reference in NBCH destructor.
this->cleanup_svc_handler_ = sh;
this->cleanup_svc_handler_->add_reference ();
}
}
template <typename SVC_HANDLER>
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::~ACE_NonBlocking_Connect_Handler (void)
{
if (this->cleanup_svc_handler_)
this->cleanup_svc_handler_->remove_reference ();
}
template <typename SVC_HANDLER> SVC_HANDLER *
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::svc_handler (void)
{
ACE_TRACE ("ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::svc_handler");
return this->svc_handler_;
}
template <typename SVC_HANDLER> long
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::timer_id (void)
{
ACE_TRACE ("ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::timer_id");
return this->timer_id_;
}
template <typename SVC_HANDLER> void
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::timer_id (long id)
{
ACE_TRACE ("ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::timer_id");
this->timer_id_ = id;
}
template <typename SVC_HANDLER> void
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::dump (void) const
{
#if defined (ACE_HAS_DUMP)
ACE_TRACE ("ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::dump");
ACELIB_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
ACELIB_DEBUG ((LM_DEBUG, ACE_TEXT ("svc_handler_ = %x"), this->svc_handler_));
ACELIB_DEBUG ((LM_DEBUG, ACE_TEXT ("\ntimer_id_ = %d"), this->timer_id_));
ACELIB_DEBUG ((LM_DEBUG, ACE_END_DUMP));
#endif /* ACE_HAS_DUMP */
}
template <typename SVC_HANDLER> bool
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::close (SVC_HANDLER *&sh)
{
// Make sure that we haven't already initialized the Svc_Handler.
if (!this->svc_handler_)
return false;
{
// Exclusive access to the Reactor.
ACE_GUARD_RETURN (ACE_Lock,
ace_mon,
this->reactor ()->lock (),
0);
// Double check.
if (!this->svc_handler_)
return false;
// Remember the Svc_Handler.
sh = this->svc_handler_;
ACE_HANDLE h = sh->get_handle ();
this->svc_handler_ = 0;
// Remove this handle from the set of non-blocking handles
// in the Connector.
this->connector_.non_blocking_handles ().remove (h);
// Cancel timer.
if (this->reactor ()->cancel_timer (this->timer_id (),
0,
0) == -1)
return false;
// Remove from Reactor.
if (-1 == this->reactor ()->remove_handler (
h,
ACE_Event_Handler::ALL_EVENTS_MASK | ACE_Event_Handler::DONT_CALL))
return false;
}
return true;
}
template <typename SVC_HANDLER> int
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::handle_timeout
(const ACE_Time_Value &tv,
const void *arg)
{
// This method is called if a connection times out before completing.
ACE_TRACE ("ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::handle_timeout");
SVC_HANDLER *svc_handler = 0;
int const retval = this->close (svc_handler) ? 0 : -1;
// Forward to the SVC_HANDLER the <arg> that was passed in as a
// magic cookie during ACE_Connector::connect(). This gives the
// SVC_HANDLER an opportunity to take corrective action (e.g., wait
// a few milliseconds and try to reconnect again.
if (svc_handler != 0 && svc_handler->handle_timeout (tv, arg) == -1)
svc_handler->handle_close (svc_handler->get_handle (),
ACE_Event_Handler::TIMER_MASK);
return retval;
}
template <typename SVC_HANDLER> int
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::handle_input (ACE_HANDLE)
{
// Called when a failure occurs during asynchronous connection
// establishment.
ACE_TRACE ("ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::handle_input");
SVC_HANDLER *svc_handler = 0;
int const retval = this->close (svc_handler) ? 0 : -1;
// Close Svc_Handler.
if (svc_handler != 0)
{
svc_handler->close (NORMAL_CLOSE_OPERATION);
}
return retval;
}
template <typename SVC_HANDLER> int
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::handle_close (ACE_HANDLE handle,
ACE_Reactor_Mask m)
{
// epoll on Linux will, at least sometimes, return EPOLLERR when a connect
// fails, triggering a total removal from the reactor. This is different from
// select()-based systems which select the fd for read on a connect failure.
// So just call handle_input() to rejoin common handling for a failed
// connect.
if (m == ACE_Event_Handler::ALL_EVENTS_MASK)
return this->handle_input (handle);
return -1;
}
template <typename SVC_HANDLER> int
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::handle_output (ACE_HANDLE handle)
{
// Called when a connection is establishment asynchronous.
ACE_TRACE ("ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::handle_output");
// Grab the connector ref before smashing ourselves in close().
ACE_Connector_Base<SVC_HANDLER> &connector = this->connector_;
SVC_HANDLER *svc_handler = 0;
int const retval = this->close (svc_handler) ? 0 : -1;
if (svc_handler != 0)
{
connector.initialize_svc_handler (handle, svc_handler);
}
return retval;
}
template <typename SVC_HANDLER> int
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::handle_exception (ACE_HANDLE h)
{
// On Win32, the except mask must also be set for asynchronous
// connects.
ACE_TRACE ("ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::handle_exception");
return this->handle_output (h);
}
template <typename SVC_HANDLER> int
ACE_NonBlocking_Connect_Handler<SVC_HANDLER>::resume_handler (void)
{
return ACE_Event_Handler::ACE_EVENT_HANDLER_NOT_RESUMED;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> void
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::dump (void) const
{
#if defined (ACE_HAS_DUMP)
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::dump");
ACELIB_DEBUG ((LM_DEBUG, ACE_BEGIN_DUMP, this));
ACELIB_DEBUG ((LM_DEBUG, ACE_TEXT ("\nflags_ = %d"), this->flags_));
ACELIB_DEBUG ((LM_DEBUG, ACE_END_DUMP));
#endif /* ACE_HAS_DUMP */
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::make_svc_handler (SVC_HANDLER *&sh)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::make_svc_handler");
if (sh == 0)
ACE_NEW_RETURN (sh,
SVC_HANDLER,
-1);
// Set the reactor of the newly created <SVC_HANDLER> to the same
// reactor that this <Connector> is using.
sh->reactor (this->reactor ());
return 0;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::activate_svc_handler (SVC_HANDLER *svc_handler)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::activate_svc_handler");
// No errors initially
int error = 0;
// See if we should enable non-blocking I/O on the <svc_handler>'s
// peer.
if (ACE_BIT_ENABLED (this->flags_, ACE_NONBLOCK) != 0)
{
if (svc_handler->peer ().enable (ACE_NONBLOCK) == -1)
error = 1;
}
// Otherwise, make sure it's disabled by default.
else if (svc_handler->peer ().disable (ACE_NONBLOCK) == -1)
error = 1;
// We are connected now, so try to open things up.
if (error || svc_handler->open ((void *) this) == -1)
{
// Make sure to close down the <svc_handler> to avoid descriptor
// leaks.
// The connection was already made; so this close is a "normal"
// close operation.
svc_handler->close (NORMAL_CLOSE_OPERATION);
return -1;
}
else
return 0;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> PEER_CONNECTOR &
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::connector (void) const
{
return const_cast<PEER_CONNECTOR &> (this->connector_);
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::connect_svc_handler
(SVC_HANDLER *&svc_handler,
const typename PEER_CONNECTOR::PEER_ADDR &remote_addr,
ACE_Time_Value *timeout,
const typename PEER_CONNECTOR::PEER_ADDR &local_addr,
int reuse_addr,
int flags,
int perms)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::connect_svc_handler");
return this->connector_.connect (svc_handler->peer (),
remote_addr,
timeout,
local_addr,
reuse_addr,
flags,
perms);
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::connect_svc_handler
(SVC_HANDLER *&svc_handler,
SVC_HANDLER *&sh_copy,
const typename PEER_CONNECTOR::PEER_ADDR &remote_addr,
ACE_Time_Value *timeout,
const typename PEER_CONNECTOR::PEER_ADDR &local_addr,
int reuse_addr,
int flags,
int perms)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::connect_svc_handler");
sh_copy = svc_handler;
return this->connector_.connect (svc_handler->peer (),
remote_addr,
timeout,
local_addr,
reuse_addr,
flags,
perms);
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::open (ACE_Reactor *r, int flags)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::open");
this->reactor (r);
this->flags_ = flags;
return 0;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR>
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::ACE_Connector (ACE_Reactor *r,
int flags)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::ACE_Connector");
(void) this->open (r, flags);
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::connect
(SVC_HANDLER *&sh,
const typename PEER_CONNECTOR::PEER_ADDR &remote_addr,
const ACE_Synch_Options &synch_options,
const typename PEER_CONNECTOR::PEER_ADDR &local_addr,
int reuse_addr,
int flags,
int perms)
{
// Initiate connection to peer.
return this->connect_i (sh,
0,
remote_addr,
synch_options,
local_addr,
reuse_addr,
flags,
perms);
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::connect
(SVC_HANDLER *&sh,
SVC_HANDLER *&sh_copy,
const typename PEER_CONNECTOR::PEER_ADDR &remote_addr,
const ACE_Synch_Options &synch_options,
const typename PEER_CONNECTOR::PEER_ADDR &local_addr,
int reuse_addr,
int flags,
int perms)
{
// Initiate connection to peer.
return this->connect_i (sh,
&sh_copy,
remote_addr,
synch_options,
local_addr,
reuse_addr,
flags,
perms);
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::connect_i
(SVC_HANDLER *&sh,
SVC_HANDLER **sh_copy,
const typename PEER_CONNECTOR::PEER_ADDR &remote_addr,
const ACE_Synch_Options &synch_options,
const typename PEER_CONNECTOR::PEER_ADDR &local_addr,
int reuse_addr,
int flags,
int perms)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::connect_i");
// If the user hasn't supplied us with a <SVC_HANDLER> we'll use the
// factory method to create one. Otherwise, things will remain as
// they are...
if (this->make_svc_handler (sh) == -1)
return -1;
ACE_Time_Value *timeout = 0;
int const use_reactor = synch_options[ACE_Synch_Options::USE_REACTOR];
if (use_reactor)
timeout = const_cast<ACE_Time_Value *> (&ACE_Time_Value::zero);
else
timeout = const_cast<ACE_Time_Value *> (synch_options.time_value ());
int result;
if (sh_copy == 0)
result = this->connect_svc_handler (sh,
remote_addr,
timeout,
local_addr,
reuse_addr,
flags,
perms);
else
result = this->connect_svc_handler (sh,
*sh_copy,
remote_addr,
timeout,
local_addr,
reuse_addr,
flags,
perms);
// Activate immediately if we are connected.
if (result != -1)
return this->activate_svc_handler (sh);
// Delegate to connection strategy.
if (use_reactor && ACE_OS::last_error () == EWOULDBLOCK)
{
// If the connection hasn't completed and we are using
// non-blocking semantics then register
// ACE_NonBlocking_Connect_Handler with the ACE_Reactor so that
// it will call us back when the connection is complete or we
// timeout, whichever comes first...
if (sh_copy == 0)
result = this->nonblocking_connect (sh, synch_options);
else
result = this->nonblocking_connect (*sh_copy, synch_options);
// If for some reason the <nonblocking_connect> call failed, then <errno>
// will be set to the new error. If the call succeeds, however,
// we need to make sure that <errno> remains set to
// <EWOULDBLOCK>.
if (result == 0)
errno = EWOULDBLOCK;
}
else
{
// Save/restore errno.
ACE_Errno_Guard error (errno);
// Make sure to close down the service handler to avoid handle
// leaks.
if (sh_copy == 0)
{
if (sh)
sh->close (CLOSE_DURING_NEW_CONNECTION);
}
else if (*sh_copy)
(*sh_copy)->close (CLOSE_DURING_NEW_CONNECTION);
}
return -1;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::connect_n
(size_t n,
SVC_HANDLER *sh[],
typename PEER_CONNECTOR::PEER_ADDR remote_addrs[],
ACE_TCHAR *failed_svc_handlers,
const ACE_Synch_Options &synch_options)
{
int result = 0;
for (size_t i = 0; i < n; i++)
{
if (this->connect (sh[i], remote_addrs[i], synch_options) == -1
&& !(synch_options[ACE_Synch_Options::USE_REACTOR]
&& errno == EWOULDBLOCK))
{
result = -1;
if (failed_svc_handlers != 0)
// Mark this entry as having failed.
failed_svc_handlers[i] = 1;
}
else if (failed_svc_handlers != 0)
// Mark this entry as having succeeded.
failed_svc_handlers[i] = 0;
}
return result;
}
// Cancel a <svc_handler> that was started asynchronously.
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::cancel (SVC_HANDLER *sh)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::cancel");
ACE_Event_Handler *handler =
this->reactor ()->find_handler (sh->get_handle ());
if (handler == 0)
return -1;
// find_handler() increments handler's refcount; ensure we decrement it.
ACE_Event_Handler_var safe_handler (handler);
NBCH *nbch =
dynamic_cast<NBCH *> (handler);
if (nbch == 0)
return -1;
SVC_HANDLER *tmp_sh = 0;
if (nbch->close (tmp_sh) == false)
return -1;
return 0;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::nonblocking_connect
(SVC_HANDLER *sh,
const ACE_Synch_Options &synch_options)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::nonblocking_connect");
// Must have a valid Reactor for non-blocking connects to work.
if (this->reactor () == 0)
return -1;
// Register the pending SVC_HANDLER so that it can be activated
// later on when the connection completes.
ACE_HANDLE handle = sh->get_handle ();
long timer_id = -1;
ACE_Time_Value *tv = 0;
NBCH *nbch = 0;
ACE_NEW_RETURN (nbch,
NBCH (*this,
sh,
-1),
-1);
ACE_Event_Handler_var safe_nbch (nbch);
// Exclusive access to the Reactor.
ACE_GUARD_RETURN (ACE_Lock, ace_mon, this->reactor ()->lock (), -1);
// Register handle with the reactor for connection events.
ACE_Reactor_Mask mask = ACE_Event_Handler::CONNECT_MASK;
if (this->reactor ()->register_handler (handle,
nbch,
mask) == -1)
goto reactor_registration_failure;
// Add handle to non-blocking handle set.
this->non_blocking_handles ().insert (handle);
// If we're starting connection under timer control then we need to
// schedule a timeout with the ACE_Reactor.
tv = const_cast<ACE_Time_Value *> (synch_options.time_value ());
if (tv != 0)
{
timer_id =
this->reactor ()->schedule_timer (nbch,
synch_options.arg (),
*tv);
if (timer_id == -1)
goto timer_registration_failure;
// Remember timer id.
nbch->timer_id (timer_id);
}
return 0;
// Undo previous actions using the ol' "goto label and fallthru"
// trick...
timer_registration_failure:
// Remove from Reactor.
this->reactor ()->remove_handler (handle, mask);
// Remove handle from the set of non-blocking handles.
this->non_blocking_handles ().remove (handle);
/* FALLTHRU */
reactor_registration_failure:
// Close the svc_handler
sh->close (CLOSE_DURING_NEW_CONNECTION);
return -1;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR>
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::~ACE_Connector (void)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::~ACE_Connector");
this->close ();
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> void
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::initialize_svc_handler
(ACE_HANDLE handle,
SVC_HANDLER *svc_handler)
{
// Try to find out if the reactor uses event associations for the
// handles it waits on. If so we need to reset it.
bool reset_new_handle =
this->reactor ()->uses_event_associations ();
if (reset_new_handle)
this->connector_.reset_new_handle (handle);
// Transfer ownership of the ACE_HANDLE to the SVC_HANDLER.
svc_handler->set_handle (handle);
typename PEER_CONNECTOR::PEER_ADDR raddr;
// Check to see if we're connected.
if (svc_handler->peer ().get_remote_addr (raddr) != -1)
this->activate_svc_handler (svc_handler);
else // Somethings gone wrong, so close down...
{
#if defined (ACE_WIN32)
// Win32 (at least prior to Windows 2000) has a timing problem.
// If you check to see if the connection has completed too fast,
// it will fail - so wait 35 milliseconds to let it catch up.
ACE_Time_Value tv (0, ACE_NON_BLOCKING_BUG_DELAY);
ACE_OS::sleep (tv);
if (svc_handler->peer ().get_remote_addr (raddr) != -1)
this->activate_svc_handler (svc_handler);
else // do the svc handler close below...
#endif /* ACE_WIN32 */
svc_handler->close (NORMAL_CLOSE_OPERATION);
}
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> void
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::reactor (ACE_Reactor *reactor)
{
this->reactor_ = reactor;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> ACE_Reactor *
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::reactor (void) const
{
return this->reactor_;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> ACE_Unbounded_Set<ACE_HANDLE> &
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::non_blocking_handles (void)
{
return this->non_blocking_handles_;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::close (void)
{
// If there are no non-blocking handle pending, return immediately.
if (this->non_blocking_handles ().size () == 0)
return 0;
// Exclusive access to the Reactor.
ACE_GUARD_RETURN (ACE_Lock, ace_mon, this->reactor ()->lock (), -1);
// Go through all the non-blocking handles. It is necessary to
// create a new iterator each time because we remove from the handle
// set when we cancel the Svc_Handler.
ACE_HANDLE *handle = 0;
while (1)
{
ACE_Unbounded_Set_Iterator<ACE_HANDLE>
iterator (this->non_blocking_handles ());
if (!iterator.next (handle))
break;
ACE_Event_Handler *handler =
this->reactor ()->find_handler (*handle);
if (handler == 0)
{
ACELIB_ERROR ((LM_ERROR,
ACE_TEXT ("%t: Connector::close h %d, no handler\n"),
*handle));
// Remove handle from the set of non-blocking handles.
this->non_blocking_handles ().remove (*handle);
continue;
}
// find_handler() incremented handler's refcount; ensure it's decremented
ACE_Event_Handler_var safe_handler (handler);
NBCH *nbch = dynamic_cast<NBCH *> (handler);
if (nbch == 0)
{
ACELIB_ERROR ((LM_ERROR,
ACE_TEXT ("%t: Connector::close h %d handler %@ ")
ACE_TEXT ("not a legit handler\n"),
*handle,
handler));
// Remove handle from the set of non-blocking handles.
this->non_blocking_handles ().remove (*handle);
continue;
}
SVC_HANDLER *svc_handler = nbch->svc_handler ();
// Cancel the non-blocking connection.
this->cancel (svc_handler);
// Close the associated Svc_Handler.
svc_handler->close (NORMAL_CLOSE_OPERATION);
}
return 0;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::fini (void)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::fini");
return this->close ();
}
// Hook called by the explicit dynamic linking facility.
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::init (int, ACE_TCHAR *[])
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::init");
return -1;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::suspend (void)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::suspend");
return -1;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::resume (void)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::resume");
return -1;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::info (ACE_TCHAR **strp, size_t length) const
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::info");
ACE_TCHAR buf[BUFSIZ];
ACE_OS::sprintf (buf,
ACE_TEXT ("%s\t %s"),
ACE_TEXT ("ACE_Connector"),
ACE_TEXT ("# connector factory\n"));
if (*strp == 0 && (*strp = ACE_OS::strdup (buf)) == 0)
return -1;
else
ACE_OS::strsncpy (*strp, buf, length);
return static_cast<int> (ACE_OS::strlen (buf));
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::open (ACE_Reactor *r,
int flags)
{
ACE_TRACE ("ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::open");
return this->open (r, 0, 0, 0, flags);
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::open
(ACE_Reactor *r,
ACE_Creation_Strategy<SVC_HANDLER> *cre_s,
ACE_Connect_Strategy<SVC_HANDLER, PEER_CONNECTOR> *conn_s,
ACE_Concurrency_Strategy<SVC_HANDLER> *con_s,
int flags)
{
ACE_TRACE ("ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::open");
this->reactor (r);
// @@ Not implemented yet.
// this->flags_ = flags;
ACE_UNUSED_ARG (flags);
// Initialize the creation strategy.
// First we decide if we need to clean up.
if (this->creation_strategy_ != 0 &&
this->delete_creation_strategy_ &&
cre_s != 0)
{
delete this->creation_strategy_;
this->creation_strategy_ = 0;
this->delete_creation_strategy_ = false;
}
if (cre_s != 0)
this->creation_strategy_ = cre_s;
else if (this->creation_strategy_ == 0)
{
ACE_NEW_RETURN (this->creation_strategy_,
CREATION_STRATEGY (0, r),
-1);
this->delete_creation_strategy_ = true;
}
// Initialize the accept strategy.
if (this->connect_strategy_ != 0 &&
this->delete_connect_strategy_ &&
conn_s != 0)
{
delete this->connect_strategy_;
this->connect_strategy_ = 0;
this->delete_connect_strategy_ = false;
}
if (conn_s != 0)
this->connect_strategy_ = conn_s;
else if (this->connect_strategy_ == 0)
{
ACE_NEW_RETURN (this->connect_strategy_,
CONNECT_STRATEGY,
-1);
this->delete_connect_strategy_ = true;
}
// Initialize the concurrency strategy.
if (this->concurrency_strategy_ != 0 &&
this->delete_concurrency_strategy_ &&
con_s != 0)
{
delete this->concurrency_strategy_;
this->concurrency_strategy_ = 0;
this->delete_concurrency_strategy_ = false;
}
if (con_s != 0)
this->concurrency_strategy_ = con_s;
else if (this->concurrency_strategy_ == 0)
{
ACE_NEW_RETURN (this->concurrency_strategy_,
CONCURRENCY_STRATEGY,
-1);
this->delete_concurrency_strategy_ = true;
}
return 0;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR>
ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::ACE_Strategy_Connector
(ACE_Reactor *reactor,
ACE_Creation_Strategy<SVC_HANDLER> *cre_s,
ACE_Connect_Strategy<SVC_HANDLER, PEER_CONNECTOR> *conn_s,
ACE_Concurrency_Strategy<SVC_HANDLER> *con_s,
int flags)
: base_type (reactor),
creation_strategy_ (0),
delete_creation_strategy_ (false),
connect_strategy_ (0),
delete_connect_strategy_ (false),
concurrency_strategy_ (0),
delete_concurrency_strategy_ (false)
{
ACE_TRACE ("ACE_Connector<SVC_HANDLER, PEER_CONNECTOR>::ACE_Strategy_Connector");
if (this->open (reactor, cre_s, conn_s, con_s, flags) == -1)
ACELIB_ERROR ((LM_ERROR, ACE_TEXT ("%p\n"), ACE_TEXT ("ACE_Strategy_Connector::ACE_Strategy_Connector")));
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR>
ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::~ACE_Strategy_Connector (void)
{
ACE_TRACE ("ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::~ACE_Strategy_Connector");
// Close down
this->close ();
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::close (void)
{
if (this->delete_creation_strategy_)
delete this->creation_strategy_;
this->delete_creation_strategy_ = false;
this->creation_strategy_ = 0;
if (this->delete_connect_strategy_)
delete this->connect_strategy_;
this->delete_connect_strategy_ = false;
this->connect_strategy_ = 0;
if (this->delete_concurrency_strategy_)
delete this->concurrency_strategy_;
this->delete_concurrency_strategy_ = false;
this->concurrency_strategy_ = 0;
return SUPER::close ();
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::make_svc_handler (SVC_HANDLER *&sh)
{
return this->creation_strategy_->make_svc_handler (sh);
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::connect_svc_handler
(SVC_HANDLER *&sh,
const typename PEER_CONNECTOR::PEER_ADDR &remote_addr,
ACE_Time_Value *timeout,
const typename PEER_CONNECTOR::PEER_ADDR &local_addr,
int reuse_addr,
int flags,
int perms)
{
return this->connect_strategy_->connect_svc_handler (sh,
remote_addr,
timeout,
local_addr,
reuse_addr,
flags,
perms);
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::connect_svc_handler
(SVC_HANDLER *&sh,
SVC_HANDLER *&sh_copy,
const typename PEER_CONNECTOR::PEER_ADDR &remote_addr,
ACE_Time_Value *timeout,
const typename PEER_CONNECTOR::PEER_ADDR &local_addr,
int reuse_addr,
int flags,
int perms)
{
return this->connect_strategy_->connect_svc_handler (sh,
sh_copy,
remote_addr,
timeout,
local_addr,
reuse_addr,
flags,
perms);
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> int
ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::activate_svc_handler (SVC_HANDLER *svc_handler)
{
return this->concurrency_strategy_->activate_svc_handler (svc_handler, this);
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> ACE_Creation_Strategy<SVC_HANDLER> *
ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::creation_strategy (void) const
{
return this->creation_strategy_;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> ACE_Connect_Strategy<SVC_HANDLER, PEER_CONNECTOR> *
ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::connect_strategy (void) const
{
return this->connect_strategy_;
}
template <typename SVC_HANDLER, typename PEER_CONNECTOR> ACE_Concurrency_Strategy<SVC_HANDLER> *
ACE_Strategy_Connector<SVC_HANDLER, PEER_CONNECTOR>::concurrency_strategy (void) const
{
return this->concurrency_strategy_;
}
ACE_END_VERSIONED_NAMESPACE_DECL
#endif /* ACE_CONNECTOR_C */
|