/usr/include/ace/INet/BufferedStreamBuffer.cpp is in libace-inet-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 | #ifndef ACE_BUFFERED_STREAM_BUFFER_CPP
#define ACE_BUFFERED_STREAM_BUFFER_CPP
#include "ace/INet/BufferedStreamBuffer.h"
#include "ace/OS_Memory.h"
#include "ace/OS_NS_string.h"
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
namespace ACE
{
namespace IOS
{
template <class ACE_CHAR_T, class TR>
BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::BasicBufferedStreamBuffer (
std::streamsize bufsz,
typename std::basic_ios<ACE_CHAR_T, TR>::openmode mode)
: bufsize_ (bufsz),
mode_ (mode),
interceptor_ (0)
{
char_type* p = 0;
ACE_NEW_NORETURN (p, char_type [bufsz]);
this->buffer_.reset (p);
this->setg (this->buffer_.get () + 4,
this->buffer_.get () + 4,
this->buffer_.get () + 4);
this->setp (this->buffer_.get (),
this->buffer_.get () + (this->bufsize_ - 1));
}
template <class ACE_CHAR_T, class TR>
BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::~BasicBufferedStreamBuffer ()
{
}
template <class ACE_CHAR_T, class TR>
typename BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::int_type
BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::overflow (int_type c)
{
if (!(this->mode_ & ios_type::out)) return char_traits::eof ();
if (c != char_traits::eof ())
{
*this->pptr () = char_traits::to_char_type (c);
this->pbump (1);
}
if (this->flush_buffer () == std::streamsize (-1)) return char_traits::eof ();
return c;
}
template <class ACE_CHAR_T, class TR>
typename BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::int_type
BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::underflow ()
{
if (!(this->mode_ & ios_type::in)) return char_traits::eof ();
if (this->gptr () && (this->gptr () < this->egptr ()))
return char_traits::to_int_type (*this->gptr ());
int putback = int (this->gptr () - this->eback ());
if (putback > 4) putback = 4;
ACE_OS::memmove (this->buffer_.get () + (4 - putback),
this->gptr () - putback,
putback * sizeof (char_type));
if (this->interceptor_)
this->interceptor_->before_read (this->bufsize_ - 4);
int n = this->read_from_stream (this->buffer_.get () + 4,
this->bufsize_ - 4);
if (this->interceptor_)
this->interceptor_->after_read (this->buffer_.get () + 4, n);
if (n <= 0)
{
if (this->interceptor_)
this->interceptor_->on_eof ();
return char_traits::eof ();
}
this->setg (this->buffer_.get () + (4 - putback),
this->buffer_.get () + 4,
this->buffer_.get () + 4 + n);
// return next character
return char_traits::to_int_type (*this->gptr ());
}
template <class ACE_CHAR_T, class TR>
int
BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::sync ()
{
if (this->pptr () && this->pptr () > this->pbase ())
{
if (this->flush_buffer () == -1) return -1;
}
return 0;
}
template <class ACE_CHAR_T, class TR>
void
BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::set_interceptor (interceptor_type& interceptor)
{
this->interceptor_ = &interceptor;
}
template <class ACE_CHAR_T, class TR>
void
BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::set_mode (
typename std::basic_ios<ACE_CHAR_T, TR>::openmode mode)
{
this->mode_ = mode;
}
template <class ACE_CHAR_T, class TR>
typename std::basic_ios<ACE_CHAR_T, TR>::openmode
BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::get_mode () const
{
return this->mode_;
}
template <class ACE_CHAR_T, class TR>
int
BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::read_from_stream (char_type* /*buffer*/, std::streamsize /*length*/)
{
// to be implemented in derived class
return 0;
}
template <class ACE_CHAR_T, class TR>
int
BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::write_to_stream (const char_type* /*buffer*/, std::streamsize /*length*/)
{
// to be implemented in derived class
return 0;
}
template <class ACE_CHAR_T, class TR>
void
BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::reset_buffers()
{
this->setg (this->buffer_.get () + 4,
this->buffer_.get () + 4,
this->buffer_.get () + 4);
this->setp (this->buffer_.get (),
this->buffer_.get () + (this->bufsize_ - 1));
}
template <class ACE_CHAR_T, class TR>
int
BasicBufferedStreamBuffer<ACE_CHAR_T, TR>::flush_buffer ()
{
int n = int (this->pptr () - this->pbase ());
if (this->interceptor_)
this->interceptor_->before_write (this->pbase (), n);
int n_out = this->write_to_stream (this->pbase (), n);
if (this->interceptor_)
this->interceptor_->after_write (n_out);
if (n_out == n)
{
this->pbump (-n);
return n;
}
return -1;
}
}
}
ACE_END_VERSIONED_NAMESPACE_DECL
#endif /* ACE_BUFFERED_STREAM_BUFFER_CPP */
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