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ACE_FILE_IO Class Reference

Read/Write operations on Files. More...

#include <FILE_IO.h>

Inheritance diagram for ACE_FILE_IO:

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Collaboration diagram for ACE_FILE_IO:

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List of all members.

Public Types

typedef ACE_FILE_Addr PEER_ADDR

Public Methods

 ACE_FILE_IO (void)
 Default constructor.

ssize_t send (const void *buf, size_t n) const
 send upto <n> bytes in <buf>.

ssize_t recv (void *buf, size_t n) const
 Recv upto <n> bytes in <buf>.

ssize_t send_n (const void *buf, size_t n) const
 Send n bytes, keep trying until n are sent.

ssize_t send_n (const ACE_Message_Block *message_block, const ACE_Time_Value *timeout=0, size_t *bytes_transferred=0)
ssize_t recv_n (void *buf, size_t n) const
 Recv n bytes, keep trying until n are received.

ssize_t send (const iovec iov[], int n) const
 Send iovecs via <writev>.

ssize_t recv (iovec iov[], int n) const
 Recv iovecs via <readv>.

ssize_t send (size_t n,...) const
ssize_t recv (size_t n,...) const
ssize_t send (const void *buf, size_t n, ACE_OVERLAPPED *overlapped) const
 Send <n> bytes via Win32 WriteFile using overlapped I/O.

ssize_t recv (void *buf, size_t n, ACE_OVERLAPPED *overlapped) const
 Recv <n> bytes via Win32 ReadFile using overlapped I/O.

ssize_t sendv (const iovec iov[], int n) const
 Send an <iovec> of size <n> to the file.

ssize_t recvv (iovec *io_vec)
ssize_t sendv_n (const iovec iov[], int n) const
ssize_t recvv_n (iovec iov[], int n) const
 Receive an <iovec> of size <n> to the file.

void dump (void) const
 Dump the state of an object.


Public Attributes

 ACE_ALLOC_HOOK_DECLARE
 Declare the dynamic allocation hooks.


Friends

class ACE_FILE_Connector

Detailed Description

Read/Write operations on Files.

Member Typedef Documentation

typedef ACE_FILE_Addr ACE_FILE_IO::PEER_ADDR
 

Constructor & Destructor Documentation

ACE_FILE_IO::ACE_FILE_IO (  void    ) 
 

Default constructor.

Member Function Documentation

void ACE_FILE_IO::dump (  void    )  const
 

Dump the state of an object.

Reimplemented from ACE_FILE.

ssize_t ACE_FILE_IO::recv (  void *    buf,
size_t    n,
ACE_OVERLAPPED *    overlapped
)  const
 

Recv <n> bytes via Win32 ReadFile using overlapped I/O.

ssize_t ACE_FILE_IO::recv (  size_t    n,
...   
)  const
 

This is an interface to readv, that doesn't use the struct iovec explicitly. The ... can be passed as an arbitrary number of (char *ptr, int len) tuples. However, the count N is the *total* number of trailing arguments, *not* a couple of the number of tuple pairs!

ASYS_INLINE ssize_t ACE_FILE_IO::recv (  iovec    iov[],
int    n
)  const
 

Recv iovecs via <readv>.

ASYS_INLINE ssize_t ACE_FILE_IO::recv (  void *    buf,
size_t    n
)  const
 

Recv upto <n> bytes in <buf>.

ASYS_INLINE ssize_t ACE_FILE_IO::recv_n (  void *    buf,
size_t    n
)  const
 

Recv n bytes, keep trying until n are received.

ssize_t ACE_FILE_IO::recvv (  iovec *    io_vec ) 
 

Allows a client to read from a file without having to provide a buffer to read. This method determines how much data is in the file, allocates a buffer of this size, reads in the data, and returns the number of bytes read. The caller is responsible for deleting the member in the <iov_base> field of <io_vec> using delete [] io_vec->iov_base.

ASYS_INLINE ssize_t ACE_FILE_IO::recvv_n (  iovec    iov[],
int    n
)  const
 

Receive an <iovec> of size <n> to the file.

ssize_t ACE_FILE_IO::send (  const void *    buf,
size_t    n,
ACE_OVERLAPPED *    overlapped
)  const
 

Send <n> bytes via Win32 WriteFile using overlapped I/O.

ssize_t ACE_FILE_IO::send (  size_t    n,
...   
)  const
 

Send N char *ptrs and int lengths. Note that the char *'s precede the ints (basically, an varargs version of writev). The count N is the *total* number of trailing arguments, *not* a couple of the number of tuple pairs!

ASYS_INLINE ssize_t ACE_FILE_IO::send (  const iovec    iov[],
int    n
)  const
 

Send iovecs via <writev>.

ASYS_INLINE ssize_t ACE_FILE_IO::send (  const void *    buf,
size_t    n
)  const
 

send upto <n> bytes in <buf>.

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

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

ASYS_INLINE ssize_t ACE_FILE_IO::send_n (  const void *    buf,
size_t    n
)  const
 

Send n bytes, keep trying until n are sent.

ASYS_INLINE ssize_t ACE_FILE_IO::sendv (  const iovec    iov[],
int    n
)  const
 

Send an <iovec> of size <n> to the file.

ASYS_INLINE ssize_t ACE_FILE_IO::sendv_n (  const iovec    iov[],
int    n
)  const
 

Send an <iovec> of size <n> to the file. Will block until all bytes are sent or an error occurs.

Friends And Related Function Documentation

friend class ACE_FILE_Connector [friend]
 

Member Data Documentation

ACE_FILE_IO::ACE_ALLOC_HOOK_DECLARE
 

Declare the dynamic allocation hooks.

Reimplemented from ACE_FILE.

The documentation for this class was generated from the following files:
Generated on Fri Apr 2 16:48:38 2004 for ACE by doxygen1.2.18