Abstract factory for creating a service handler (SVC_HANDLER), accepting into the SVC_HANDLER, and activating the SVC_HANDLER.
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Public Types |
typedef ACE_PEER_ACCEPTOR_ADDR | addr_type |
typedef ACE_PEER_ACCEPTOR | acceptor_type |
typedef SVC_HANDLER | handler_type |
typedef SVC_HANDLER::stream_type | stream_type |
Public Member Functions |
| ACE_Acceptor (ACE_Reactor *=0, int use_select=1) |
| "Do-nothing" constructor.
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| ACE_Acceptor (const ACE_PEER_ACCEPTOR_ADDR &local_addr, ACE_Reactor *reactor=ACE_Reactor::instance(), int flags=0, int use_select=1, int reuse_addr=1) |
virtual int | open (const ACE_PEER_ACCEPTOR_ADDR &local_addr, ACE_Reactor *reactor=ACE_Reactor::instance(), int flags=0, int use_select=1, int reuse_addr=1) |
virtual | ~ACE_Acceptor (void) |
| Close down the Acceptor's resources.
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virtual | operator ACE_PEER_ACCEPTOR & () const |
| Return the underlying PEER_ACCEPTOR object.
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virtual ACE_PEER_ACCEPTOR & | acceptor (void) const |
| Return the underlying PEER_ACCEPTOR object.
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virtual ACE_HANDLE | get_handle (void) const |
| Returns the listening acceptor's {ACE_HANDLE}.
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virtual int | close (void) |
| Close down the Acceptor.
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virtual int | handle_accept_error (void) |
void | dump (void) const |
| Dump the state of an object.
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virtual int | suspend (void) |
| This method calls {Reactor::suspend}.
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virtual int | resume (void) |
| This method calls {Reactor::resume}.
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Public Attributes |
| ACE_ALLOC_HOOK_DECLARE |
| Declare the dynamic allocation hooks.
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Protected Member Functions |
virtual int | make_svc_handler (SVC_HANDLER *&sh) |
virtual int | accept_svc_handler (SVC_HANDLER *svc_handler) |
virtual int | activate_svc_handler (SVC_HANDLER *svc_handler) |
virtual int | handle_close (ACE_HANDLE=ACE_INVALID_HANDLE, ACE_Reactor_Mask=ACE_Event_Handler::ALL_EVENTS_MASK) |
virtual int | handle_input (ACE_HANDLE) |
virtual int | init (int argc, ACE_TCHAR *argv[]) |
virtual int | fini (void) |
| Calls {handle_close}.
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virtual int | info (ACE_TCHAR **buf, size_t) const |
| Default version returns address info in {buf}.
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Protected Attributes |
ACE_PEER_ACCEPTOR | peer_acceptor_ |
| Concrete factory for accepting connections from clients...
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ACE_PEER_ACCEPTOR_ADDR | peer_acceptor_addr_ |
| Needed to reopen the socket if {accept} fails.
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int | flags_ |
int | use_select_ |
int | reuse_addr_ |
| Needed to reopen the socket if {accept} fails.
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template<class SVC_HANDLER, ACE_PEER_ACCEPTOR_1>
class ACE_Acceptor< SVC_HANDLER, ACE_PEER_ACCEPTOR_1 >
Abstract factory for creating a service handler (SVC_HANDLER), accepting into the SVC_HANDLER, and activating the SVC_HANDLER.
Implements the basic strategy for passively establishing connections with clients. An ACE_Acceptor is parameterized by concrete types that conform to the interfaces of PEER_ACCEPTOR and SVC_HANDLER. The PEER_ACCEPTOR is instantiated with a transport mechanism that passively establishes connections. The SVC_HANDLER is instantiated with a concrete type that performs the application-specific service. An ACE_Acceptor inherits from ACE_Service_Object, which in turn inherits from ACE_Event_Handler. This enables the ACE_Reactor to dispatch the ACE_Acceptor's handle_input method when connection events occur. The handle_input method performs the ACE_Acceptor's default creation, connection establishment, and service activation strategies. These strategies can be overridden by subclasses individually or as a group.
template<class SVC_HANDLER, ACE_PEER_ACCEPTOR_1 >
Open the contained PEER_ACCEPTOR
object to begin listening, and register with the specified reactor for accept events. An acceptor can only listen to one port at a time, so make sure to close()
the acceptor before calling open()
again.
The PEER_ACCEPTOR
handle is put into non-blocking mode as a safeguard against the race condition that can otherwise occur between the time when the passive-mode socket handle is "ready" and when the actual accept()
call is made. During this interval, the client can shutdown the connection, in which case, the accept()
call can hang.
- Parameters:
-
local_addr | The address to listen at. |
reactor | Pointer to the ACE_Reactor instance to register this object with. The default is the singleton. |
flags | Flags to control what mode an accepted socket will be put into after it is accepted. The only legal value for this argument is ACE_NONBLOCK , which enables non-blocking mode on the accepted peer stream object in SVC_HANDLER . The default is 0. |
use_select | Affects behavior when called back by the reactor when a connection can be accepted. If non-zero, this object will accept all pending connections, instead of just the one that triggered the reactor callback. Uses ACE_OS::select() internally to detect any remaining acceptable connections. The default is 1. |
reuse_addr | Passed to the PEER_ACCEPTOR::open() method with local_addr . Generally used to request that the OS allow reuse of the listen port. The default is 1. |
template<class SVC_HANDLER, ACE_PEER_ACCEPTOR_1 >
Bridge method for creating a SVC_HANDLER. The default is to create a new {SVC_HANDLER} if {sh} == 0, else {sh} is unchanged. However, subclasses can override this policy to perform SVC_HANDLER creation in any way that they like (such as creating subclass instances of SVC_HANDLER, using a singleton, dynamically linking the handler, etc.). Returns -1 on failure, else 0.
Reimplemented in ACE_Strategy_Acceptor< SVC_HANDLER, ACE_PEER_ACCEPTOR_1 >.
template<class SVC_HANDLER, ACE_PEER_ACCEPTOR_1 >
Open the contained PEER_ACCEPTOR
object to begin listening, and register with the specified reactor for accept events. An acceptor can only listen to one port at a time, so make sure to close()
the acceptor before calling open()
again.
The PEER_ACCEPTOR
handle is put into non-blocking mode as a safeguard against the race condition that can otherwise occur between the time when the passive-mode socket handle is "ready" and when the actual accept()
call is made. During this interval, the client can shutdown the connection, in which case, the accept()
call can hang.
- Parameters:
-
local_addr | The address to listen at. |
reactor | Pointer to the ACE_Reactor instance to register this object with. The default is the singleton. |
flags | Flags to control what mode an accepted socket will be put into after it is accepted. The only legal value for this argument is ACE_NONBLOCK , which enables non-blocking mode on the accepted peer stream object in SVC_HANDLER . The default is 0. |
use_select | Affects behavior when called back by the reactor when a connection can be accepted. If non-zero, this object will accept all pending connections, instead of just the one that triggered the reactor callback. Uses ACE_OS::select() internally to detect any remaining acceptable connections. The default is 1. |
reuse_addr | Passed to the PEER_ACCEPTOR::open() method with local_addr . Generally used to request that the OS allow reuse of the listen port. The default is 1. |
- Return values:
-
0 | Success |
-1 | Failure, errno contains an error code. |
Reimplemented in ACE_Strategy_Acceptor< SVC_HANDLER, ACE_PEER_ACCEPTOR_1 >.