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glibc  2.9
Classes | Functions | Variables
memstream.c File Reference
#include "libioP.h"
#include "strfile.h"
#include <stdio.h>
#include <stdlib.h>

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Classes

struct  _IO_FILE_memstream

Functions

static int _IO_mem_sync (_IO_FILE *fp) __THROW
static void _IO_mem_finish (_IO_FILE *fp, int) __THROW
_IO_FILEopen_memstream (char **bufloc, _IO_size_t *sizeloc)
 libc_hidden_def (open_memstream)

Variables

static struct _IO_jump_t

Class Documentation

struct _IO_FILE_memstream

Definition at line 25 of file memstream.c.

Collaboration diagram for _IO_FILE_memstream:
Class Members
_IO_strfile _sf
char ** bufloc
_IO_size_t * sizeloc

Function Documentation

static void _IO_mem_finish ( _IO_FILE fp,
int  dummy 
) [static]

Definition at line 126 of file memstream.c.

{
  struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp;

  *mp->bufloc = (char *) realloc (fp->_IO_write_base,
                              fp->_IO_write_ptr - fp->_IO_write_base + 1);
  if (*mp->bufloc != NULL)
    {
      (*mp->bufloc)[fp->_IO_write_ptr - fp->_IO_write_base] = '\0';
      *mp->sizeloc = fp->_IO_write_ptr - fp->_IO_write_base;

      fp->_IO_buf_base = NULL;
    }

  _IO_str_finish (fp, 0);
}

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static int _IO_mem_sync ( _IO_FILE fp) [static]

Definition at line 101 of file memstream.c.

{
  struct _IO_FILE_memstream *mp = (struct _IO_FILE_memstream *) fp;

  if (fp->_IO_write_ptr == fp->_IO_write_end)
    {
      INTUSE(_IO_str_overflow) (fp, '\0');
      --fp->_IO_write_ptr;
    }
  else
    *fp->_IO_write_ptr = '\0';

  *mp->bufloc = fp->_IO_write_base;
  *mp->sizeloc = fp->_IO_write_ptr - fp->_IO_write_base;

  return 0;
}

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_IO_FILE* open_memstream ( char **  bufloc,
_IO_size_t sizeloc 
)

Definition at line 65 of file memstream.c.

{
  struct locked_FILE
  {
    struct _IO_FILE_memstream fp;
#ifdef _IO_MTSAFE_IO
    _IO_lock_t lock;
#endif
    struct _IO_wide_data wd;
  } *new_f;
  char *buf;

  new_f = (struct locked_FILE *) malloc (sizeof (struct locked_FILE));
  if (new_f == NULL)
    return NULL;
#ifdef _IO_MTSAFE_IO
  new_f->fp._sf._sbf._f._lock = &new_f->lock;
#endif

  buf = calloc (1, _IO_BUFSIZ);
  if (buf == NULL)
    return NULL;
  INTUSE(_IO_init) (&new_f->fp._sf._sbf._f, 0);
  _IO_JUMPS ((struct _IO_FILE_plus *) &new_f->fp._sf._sbf) = &_IO_mem_jumps;
  _IO_str_init_static_internal (&new_f->fp._sf, buf, _IO_BUFSIZ, buf);
  new_f->fp._sf._sbf._f._flags &= ~_IO_USER_BUF;
  new_f->fp._sf._s._allocate_buffer = (_IO_alloc_type) malloc;
  new_f->fp._sf._s._free_buffer = (_IO_free_type) free;

  new_f->fp.bufloc = bufloc;
  new_f->fp.sizeloc = sizeloc;

  return (_IO_FILE *) &new_f->fp._sf._sbf;
}

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Variable Documentation

struct _IO_jump_t [static]