io_buf.cc File Reference

#include "io_buf.h"
#include <cstdio>

Go to the source code of this file.

Functions
bool	isbinary (io_buf &i)
size_t	readto (io_buf &i, char *&pointer, char terminal)

Function Documentation

isbinary()

bool isbinary

(

io_buf &

i

)

Definition at line 45 of file io_buf.cc.

References io_buf::current, v_array< T >::end(), io_buf::files, io_buf::fill(), io_buf::head, and io_buf::space.

Referenced by io_buf::bin_write_fixed(), enable_sources(), and reset_source().

{
  if (i.space.end() == i.head)
    if (i.fill(i.files[i.current]) <= 0)
      return false;

  bool ret = (*i.head == 0);
  if (ret)
    i.head++;

  return ret;
}

readto()

size_t readto	(	io_buf &	i,
		char *&	pointer,
		char	terminal
	)

Definition at line 58 of file io_buf.cc.

References v_array< T >::begin(), io_buf::current, v_array< T >::end(), v_array< T >::end_array, io_buf::files, io_buf::fill(), io_buf::head, readto(), v_array< T >::size(), and io_buf::space.

Referenced by io_buf::bin_write_fixed(), read_features(), and readto().

{
  // Return a pointer to the bytes before the terminal.  Must be less than the buffer size.
  pointer = i.head;
  while (pointer < i.space.end() && *pointer != terminal) pointer++;
  if (pointer != i.space.end())
  {
    size_t n = pointer - i.head;
    i.head = pointer + 1;
    pointer -= n;
    return n + 1;
  }
  else
  {
    if (i.space.end() == i.space.end_array)
    {
      size_t left = i.space.end() - i.head;
      memmove(i.space.begin(), i.head, left);
      i.head = i.space.begin();
      i.space.end() = i.space.begin() + left;
      pointer = i.space.end();
    }
    if (i.current < i.files.size() && i.fill(i.files[i.current]) > 0)  // more bytes are read.
      return readto(i, pointer, terminal);
    else if (++i.current < i.files.size())  // no more bytes, so go to next file.
      return readto(i, pointer, terminal);
    else  // no more bytes to read, return everything we have.
    {
      size_t n = pointer - i.head;
      i.head = pointer;
      pointer -= n;
      return n;
    }
  }
}