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ACE_SOCK_Stream Class Reference

Defines the methods in the ACE_SOCK_Stream abstraction. More...

#include <SOCK_Stream.h>

Inheritance diagram for ACE_SOCK_Stream:
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Collaboration diagram for ACE_SOCK_Stream:
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Public Types

typedef ACE_INET_Addr PEER_ADDR
 

Public Member Functions

 ACE_SOCK_Stream (void)
 Constructor. More...
 
 ACE_SOCK_Stream (ACE_HANDLE h)
 Constructor (sets the underlying ACE_HANDLE with h). More...
 
 ~ACE_SOCK_Stream (void)
 Destructor. More...
 
ssize_t send_urg (const void *ptr, size_t len=sizeof(char), const ACE_Time_Value *timeout=0) const
 
ssize_t recv_urg (void *ptr, size_t len=sizeof(char), const ACE_Time_Value *timeout=0) const
 
int close_reader (void)
 Close down the reader. More...
 
int close_writer (void)
 Close down the writer. More...
 
int close (void)
 
void dump (void) const
 Dump the state of an object. More...
 
Counted send/receive methods

The counted send/receive methods attempt to transfer a specified number of bytes even if they must block and retry the operation in order to transfer the entire amount. The time spent blocking for the entire transfer can be limited by a specified ACE_Time_Value object which is a relative time (i.e., a fixed amount of time, not an absolute time of day). These methods return the count of transferred bytes, or -1 if an error occurs or the operation times out before the entire requested amount of data has been transferred. In error or timeout situations it's possible that some data was transferred before the error or timeout. The bytes_transferred parameter is used to obtain the count of bytes transferred before the error or timeout occurred. If the total specified number of bytes is transferred without error, the method return value should equal the value of bytes_transferred.

Parameters
bufThe buffer to write from or receive into.
iovAn I/O vector containing a specified number of count/pointer pairs directing the data to be transferred.
iovcntThe number of I/O vectors to be used from iov.
lenThe number of bytes to transfer.
flagsFlags that will be passed through to the recv() system call.
timeoutIndicates how long to blocking trying to transfer data. If no timeout is supplied (timeout == 0) the method will wait indefinitely or until an error occurs for the specified number of bytes to be transferred. To avoid any waiting, specify a timeout value with 0 seconds. Note that the timeout period restarts on each retried operation issued; therefore, an operation that requires multiples retries may take longer than the specified timeout to complete.
bytes_transferredIf non-0, points to a location which receives the total number of bytes transferred before the method returns, even if it's less than the number requested.
Return values
len,thecomplete number of bytes transferred.
0EOF, i.e., the peer closed the connection.
-1an error occurred before the entire amount was transferred. Check errno for more information. If the timeout period is reached, errno is ETIME.

On partial transfers, i.e., if any data is transferred before timeout/error/EOF, *bytes_transferred will contain the number of bytes transferred.

ssize_t recv_n (void *buf, size_t len, int flags, const ACE_Time_Value *timeout=0, size_t *bytes_transferred=0) const
 Try to recv exactly len bytes into buf from the connected socket. More...
 
ssize_t recv_n (void *buf, size_t len, const ACE_Time_Value *timeout=0, size_t *bytes_transferred=0) const
 Try to recv exactly len bytes into buf from the connected socket. More...
 
ssize_t recvv_n (iovec iov[], int iovcnt, const ACE_Time_Value *timeout=0, size_t *bytes_transferred=0) const
 Receive an iovec of size iovcnt from the connected socket. More...
 
ssize_t send_n (const void *buf, size_t len, int flags, const ACE_Time_Value *timeout=0, size_t *bytes_transferred=0) const
 Try to send exactly len bytes from buf to the connection socket. More...
 
ssize_t send_n (const void *buf, size_t len, const ACE_Time_Value *timeout=0, size_t *bytes_transferred=0) const
 Try to send exactly len bytes from buf to the connected socket. More...
 
ssize_t send_n (const ACE_Message_Block *message_block, const ACE_Time_Value *timeout=0, size_t *bytes_transferred=0) const
 
ssize_t sendv_n (const iovec iov[], int iovcnt, const ACE_Time_Value *timeout=0, size_t *bytes_transferred=0) const
 Send an iovec of size iovcnt to the connected socket. More...
 
- Public Member Functions inherited from ACE_SOCK_IO
 ACE_SOCK_IO (void)
 Constructor. More...
 
 ~ACE_SOCK_IO (void)
 Destructor. More...
 
ssize_t recv (void *buf, size_t n, int flags, const ACE_Time_Value *timeout=0) const
 Recv an n byte buffer from the connected socket. More...
 
ssize_t recv (void *buf, size_t n, const ACE_Time_Value *timeout=0) const
 Recv an n byte buffer from the connected socket. More...
 
ssize_t recvv (iovec iov[], int n, const ACE_Time_Value *timeout=0) const
 Recv an <iovec> of size n from the connected socket. More...
 
ssize_t recvv (iovec *io_vec, const ACE_Time_Value *timeout=0) const
 
ssize_t recv (size_t n,...) const
 Recv n varargs messages to the connected socket. More...
 
ssize_t recv (void *buf, size_t n, ACE_OVERLAPPED *overlapped) const
 Recv n bytes via Win32 ReadFile using overlapped I/O. More...
 
ssize_t send (const void *buf, size_t n, int flags, const ACE_Time_Value *timeout=0) const
 Send an n byte buffer to the connected socket. More...
 
ssize_t send (const void *buf, size_t n, const ACE_Time_Value *timeout=0) const
 Send an n byte buffer to the connected socket. More...
 
ssize_t sendv (const iovec iov[], int n, const ACE_Time_Value *timeout=0) const
 Send an iovec of size n to the connected socket. More...
 
ssize_t send (size_t n,...) const
 Send n varargs messages to the connected socket. More...
 
ssize_t send (const void *buf, size_t n, ACE_OVERLAPPED *overlapped) const
 Send n bytes via Win32 <WriteFile> using overlapped I/O. More...
 
void dump (void) const
 Dump the state of an object. More...
 
- Public Member Functions inherited from ACE_SOCK
int set_option (int level, int option, void *optval, int optlen) const
 Wrapper around the setsockopt system call. More...
 
int get_option (int level, int option, void *optval, int *optlen) const
 Wrapper around the getsockopt system call. More...
 
int close (void)
 
int get_local_addr (ACE_Addr &) const
 
int get_remote_addr (ACE_Addr &) const
 
void dump (void) const
 Dump the state of an object. More...
 
int open (int type, int protocol_family, int protocol, int reuse_addr)
 Wrapper around the BSD-style socket system call (no QoS). More...
 
int open (int type, int protocol_family, int protocol, ACE_Protocol_Info *protocolinfo, ACE_SOCK_GROUP g, u_long flags, int reuse_addr)
 Wrapper around the QoS-enabled WSASocket function. More...
 
- Public Member Functions inherited from ACE_IPC_SAP
int control (int cmd, void *) const
 Interface for <ioctl>. More...
 
int enable (int value) const
 
int disable (int value) const
 
ACE_HANDLE get_handle (void) const
 Get the underlying handle. More...
 
void set_handle (ACE_HANDLE handle)
 Set the underlying handle. More...
 
void dump (void) const
 Dump the state of an object. More...
 

Public Attributes

 ACE_ALLOC_HOOK_DECLARE
 Declare the dynamic allocation hooks. More...
 
- Public Attributes inherited from ACE_SOCK_IO
 ACE_ALLOC_HOOK_DECLARE
 Declare the dynamic allocation hooks. More...
 
- Public Attributes inherited from ACE_SOCK
 ACE_ALLOC_HOOK_DECLARE
 Declare the dynamic allocation hooks. More...
 
- Public Attributes inherited from ACE_IPC_SAP
 ACE_ALLOC_HOOK_DECLARE
 Declare the dynamic allocation hooks. More...
 

Additional Inherited Members

- Protected Member Functions inherited from ACE_SOCK
 ACE_SOCK (int type, int protocol_family, int protocol=0, int reuse_addr=0)
 
 ACE_SOCK (int type, int protocol_family, int protocol, ACE_Protocol_Info *protocolinfo, ACE_SOCK_GROUP g, u_long flags, int reuse_addr)
 
 ACE_SOCK (void)
 
 ~ACE_SOCK (void)
 Protected destructor. More...
 

Detailed Description

Defines the methods in the ACE_SOCK_Stream abstraction.

This adds additional wrapper methods atop the ACE_SOCK_IO class.

See Also
ACE_SOCK_IO

Member Typedef Documentation

Constructor & Destructor Documentation

ACE_SOCK_Stream::ACE_SOCK_Stream ( void  )
inline

Constructor.

ACE_SOCK_Stream::ACE_SOCK_Stream ( ACE_HANDLE  h)
inline

Constructor (sets the underlying ACE_HANDLE with h).

ACE_SOCK_Stream::~ACE_SOCK_Stream ( void  )
inline

Destructor.

Member Function Documentation

int ACE_SOCK_Stream::close ( void  )

Close down the socket (we need this to make things work correctly on Win32, which requires use to do a close_writer() before doing the close to avoid losing data).

int ACE_SOCK_Stream::close_reader ( void  )
inline

Close down the reader.

int ACE_SOCK_Stream::close_writer ( void  )
inline

Close down the writer.

void ACE_SOCK_Stream::dump ( void  ) const

Dump the state of an object.

ssize_t ACE_SOCK_Stream::recv_n ( void *  buf,
size_t  len,
int  flags,
const ACE_Time_Value timeout = 0,
size_t *  bytes_transferred = 0 
) const
inline

Try to recv exactly len bytes into buf from the connected socket.

ssize_t ACE_SOCK_Stream::recv_n ( void *  buf,
size_t  len,
const ACE_Time_Value timeout = 0,
size_t *  bytes_transferred = 0 
) const
inline

Try to recv exactly len bytes into buf from the connected socket.

ssize_t ACE_SOCK_Stream::recv_urg ( void *  ptr,
size_t  len = sizeof (char),
const ACE_Time_Value timeout = 0 
) const
inline
ssize_t ACE_SOCK_Stream::recvv_n ( iovec  iov[],
int  iovcnt,
const ACE_Time_Value timeout = 0,
size_t *  bytes_transferred = 0 
) const
inline

Receive an iovec of size iovcnt from the connected socket.

ssize_t ACE_SOCK_Stream::send_n ( const void *  buf,
size_t  len,
int  flags,
const ACE_Time_Value timeout = 0,
size_t *  bytes_transferred = 0 
) const
inline

Try to send exactly len bytes from buf to the connection socket.

ssize_t ACE_SOCK_Stream::send_n ( const void *  buf,
size_t  len,
const ACE_Time_Value timeout = 0,
size_t *  bytes_transferred = 0 
) const
inline

Try to send exactly len bytes from buf to the connected socket.

ssize_t ACE_SOCK_Stream::send_n ( const ACE_Message_Block message_block,
const ACE_Time_Value timeout = 0,
size_t *  bytes_transferred = 0 
) const
inline

Send all the message blocks chained through their next and cont pointers. This call uses the underlying OS gather-write operation to reduce the domain-crossing penalty.

ssize_t ACE_SOCK_Stream::send_urg ( const void *  ptr,
size_t  len = sizeof (char),
const ACE_Time_Value timeout = 0 
) const
inline
ssize_t ACE_SOCK_Stream::sendv_n ( const iovec  iov[],
int  iovcnt,
const ACE_Time_Value timeout = 0,
size_t *  bytes_transferred = 0 
) const
inline

Send an iovec of size iovcnt to the connected socket.

Member Data Documentation

ACE_SOCK_Stream::ACE_ALLOC_HOOK_DECLARE

Declare the dynamic allocation hooks.


The documentation for this class was generated from the following files: