removed in 2000-02-01 snapshot.

This commit is contained in:
Jason Molenda 2000-02-02 00:43:55 +00:00
parent 210dcc61df
commit 6bb9f1226a
2 changed files with 0 additions and 604 deletions

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/* GDB_FILE - a generic STDIO like output stream.
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* Implement the ``struct gdb_file'' object. */
#include "defs.h"
#include "gdb-file.h"
#undef XMALLOC
#define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
static gdb_file_isatty_ftype null_file_isatty;
static gdb_file_write_ftype null_file_write;
static gdb_file_fputs_ftype null_file_fputs;
static gdb_file_flush_ftype null_file_flush;
static gdb_file_delete_ftype null_file_delete;
static gdb_file_rewind_ftype null_file_rewind;
static gdb_file_put_ftype null_file_put;
struct gdb_file
{
int *magic;
gdb_file_flush_ftype *to_flush;
gdb_file_write_ftype *to_write;
gdb_file_fputs_ftype *to_fputs;
gdb_file_delete_ftype *to_delete;
gdb_file_isatty_ftype *to_isatty;
gdb_file_rewind_ftype *to_rewind;
gdb_file_put_ftype *to_put;
void *to_data;
};
int gdb_file_magic;
struct gdb_file *
gdb_file_new ()
{
struct gdb_file *file = xmalloc (sizeof (struct gdb_file));
file->magic = &gdb_file_magic;
set_gdb_file_data (file, NULL, null_file_delete);
set_gdb_file_flush (file, null_file_flush);
set_gdb_file_write (file, null_file_write);
set_gdb_file_fputs (file, null_file_fputs);
set_gdb_file_isatty (file, null_file_isatty);
set_gdb_file_rewind (file, null_file_rewind);
set_gdb_file_put (file, null_file_put);
return file;
}
void
gdb_file_delete (file)
struct gdb_file *file;
{
file->to_delete (file);
free (file);
}
static int
null_file_isatty (file)
struct gdb_file *file;
{
return 0;
}
static void
null_file_rewind (file)
struct gdb_file *file;
{
return;
}
static void
null_file_put (struct gdb_file *file,
gdb_file_put_method_ftype *write,
void *dest)
{
return;
}
static void
null_file_flush (file)
struct gdb_file *file;
{
return;
}
static void
null_file_write (struct gdb_file *file,
const char *buf,
long sizeof_buf)
{
if (file->to_fputs == null_file_fputs)
/* Both the write and fputs methods are null. Discard the
request. */
return;
else
{
/* The fputs method isn't null, slowly pass the write request
onto that. FYI, this isn't as bad as it may look - the
current (as of 1999-11-07) printf_* function calls fputc and
fputc does exactly the below. By having a write function it
is possible to clean up that code. */
int i;
char b[2];
b[1] = '\0';
for (i = 0; i < sizeof_buf; i++)
{
b[0] = buf[i];
file->to_fputs (b, file);
}
return;
}
}
static void
null_file_fputs (buf, file)
const char *buf;
struct gdb_file *file;
{
if (file->to_write == null_file_write)
/* Both the write and fputs methods are null. Discard the
request. */
return;
else
{
/* The write method was implemented, use that. */
file->to_write (file, buf, strlen (buf));
}
}
static void
null_file_delete (file)
struct gdb_file *file;
{
return;
}
void *
gdb_file_data (file)
struct gdb_file *file;
{
if (file->magic != &gdb_file_magic)
internal_error ("gdb_file_data: bad magic number");
return file->to_data;
}
void
gdb_flush (file)
struct gdb_file *file;
{
file->to_flush (file);
}
int
gdb_file_isatty (file)
struct gdb_file *file;
{
return file->to_isatty (file);
}
void
gdb_file_rewind (file)
struct gdb_file *file;
{
file->to_rewind (file);
}
void
gdb_file_put (struct gdb_file *file,
gdb_file_put_method_ftype *write,
void *dest)
{
file->to_put (file, write, dest);
}
void
gdb_file_write (struct gdb_file *file,
const char *buf,
long length_buf)
{
file->to_write (file, buf, length_buf);
}
void
fputs_unfiltered (buf, file)
const char *buf;
struct gdb_file *file;
{
file->to_fputs (buf, file);
}
void
set_gdb_file_flush (file, flush)
struct gdb_file *file;
gdb_file_flush_ftype *flush;
{
file->to_flush = flush;
}
void
set_gdb_file_isatty (file, isatty)
struct gdb_file *file;
gdb_file_isatty_ftype *isatty;
{
file->to_isatty = isatty;
}
void
set_gdb_file_rewind (file, rewind)
struct gdb_file *file;
gdb_file_rewind_ftype *rewind;
{
file->to_rewind = rewind;
}
void
set_gdb_file_put (file, put)
struct gdb_file *file;
gdb_file_put_ftype *put;
{
file->to_put = put;
}
void
set_gdb_file_write (struct gdb_file *file,
gdb_file_write_ftype *write)
{
file->to_write = write;
}
void
set_gdb_file_fputs (file, fputs)
struct gdb_file *file;
gdb_file_fputs_ftype *fputs;
{
file->to_fputs = fputs;
}
void
set_gdb_file_data (file, data, delete)
struct gdb_file *file;
void *data;
gdb_file_delete_ftype *delete;
{
file->to_data = data;
file->to_delete = delete;
}
/* gdb_file utility function for converting a ``struct gdb_file'' into
a memory buffer''. */
struct accumulated_gdb_file
{
char *buffer;
long length;
};
static void
do_gdb_file_xstrdup (void *context, const char *buffer, long length)
{
struct accumulated_gdb_file *acc = context;
if (acc->buffer == NULL)
acc->buffer = xmalloc (length + 1);
else
acc->buffer = xrealloc (acc->buffer, acc->length + length + 1);
memcpy (acc->buffer + acc->length, buffer, length);
acc->length += length;
acc->buffer[acc->length] = '\0';
}
char *
gdb_file_xstrdup (struct gdb_file *file,
long *length)
{
struct accumulated_gdb_file acc;
acc.buffer = NULL;
acc.length = 0;
gdb_file_put (file, do_gdb_file_xstrdup, &acc);
if (acc.buffer == NULL)
acc.buffer = xstrdup ("");
*length = acc.length;
return acc.buffer;
}
/* A pure memory based ``struct gdb_file'' that can be used an output
buffer. The buffers accumulated contents are available via
gdb_file_put(). */
struct mem_file
{
int *magic;
char *buffer;
int sizeof_buffer;
int length_buffer;
};
static gdb_file_rewind_ftype mem_file_rewind;
static gdb_file_put_ftype mem_file_put;
static gdb_file_write_ftype mem_file_write;
static gdb_file_delete_ftype mem_file_delete;
static struct gdb_file *mem_file_new PARAMS ((void));
static int mem_file_magic;
static struct gdb_file *
mem_file_new (void)
{
struct mem_file *stream = XMALLOC (struct mem_file);
struct gdb_file *file = gdb_file_new ();
set_gdb_file_data (file, stream, mem_file_delete);
set_gdb_file_rewind (file, mem_file_rewind);
set_gdb_file_put (file, mem_file_put);
set_gdb_file_write (file, mem_file_write);
stream->magic = &mem_file_magic;
stream->buffer = NULL;
stream->sizeof_buffer = 0;
stream->length_buffer = 0;
return file;
}
static void
mem_file_delete (struct gdb_file *file)
{
struct mem_file *stream = gdb_file_data (file);
if (stream->magic != &mem_file_magic)
internal_error ("mem_file_delete: bad magic number");
if (stream->buffer != NULL)
free (stream->buffer);
free (stream);
}
struct gdb_file *
mem_fileopen (void)
{
return mem_file_new ();
}
static void
mem_file_rewind (struct gdb_file *file)
{
struct mem_file *stream = gdb_file_data (file);
if (stream->magic != &mem_file_magic)
internal_error ("mem_file_rewind: bad magic number");
stream->length_buffer = 0;
}
static void
mem_file_put (struct gdb_file *file,
gdb_file_put_method_ftype *write,
void *dest)
{
struct mem_file *stream = gdb_file_data (file);
if (stream->magic != &mem_file_magic)
internal_error ("mem_file_put: bad magic number");
if (stream->length_buffer > 0)
write (dest, stream->buffer, stream->length_buffer);
}
void
mem_file_write (struct gdb_file *file,
const char *buffer,
long length_buffer)
{
struct mem_file *stream = gdb_file_data (file);
if (stream->magic != &mem_file_magic)
internal_error ("mem_file_write: bad magic number");
if (stream->buffer == NULL)
{
stream->length_buffer = length_buffer;
stream->sizeof_buffer = length_buffer;
stream->buffer = xmalloc (stream->sizeof_buffer);
memcpy (stream->buffer, buffer, length_buffer);
}
else
{
int new_length = stream->length_buffer + length_buffer;
if (new_length >= stream->sizeof_buffer)
{
stream->sizeof_buffer = new_length;
stream->buffer = xrealloc (stream->buffer, stream->sizeof_buffer);
}
memcpy (stream->buffer + stream->length_buffer, buffer, length_buffer);
stream->length_buffer = new_length;
}
}
/* ``struct gdb_file'' implementation that maps directly onto
<stdio.h>'s FILE. */
static gdb_file_write_ftype stdio_file_write;
static gdb_file_fputs_ftype stdio_file_fputs;
static gdb_file_isatty_ftype stdio_file_isatty;
static gdb_file_delete_ftype stdio_file_delete;
static struct gdb_file *stdio_file_new PARAMS ((FILE * file, int close_p));
static gdb_file_flush_ftype stdio_file_flush;
static int stdio_file_magic;
struct stdio_file
{
int *magic;
FILE *file;
int close_p;
};
static struct gdb_file *
stdio_file_new (file, close_p)
FILE *file;
int close_p;
{
struct gdb_file *gdb_file = gdb_file_new ();
struct stdio_file *stdio = xmalloc (sizeof (struct stdio_file));
stdio->magic = &stdio_file_magic;
stdio->file = file;
stdio->close_p = close_p;
set_gdb_file_data (gdb_file, stdio, stdio_file_delete);
set_gdb_file_flush (gdb_file, stdio_file_flush);
set_gdb_file_write (gdb_file, stdio_file_write);
set_gdb_file_fputs (gdb_file, stdio_file_fputs);
set_gdb_file_isatty (gdb_file, stdio_file_isatty);
return gdb_file;
}
static void
stdio_file_delete (file)
struct gdb_file *file;
{
struct stdio_file *stdio = gdb_file_data (file);
if (stdio->magic != &stdio_file_magic)
internal_error ("stdio_file_delete: bad magic number");
if (stdio->close_p)
{
fclose (stdio->file);
}
free (stdio);
}
static void
stdio_file_flush (file)
struct gdb_file *file;
{
struct stdio_file *stdio = gdb_file_data (file);
if (stdio->magic != &stdio_file_magic)
internal_error ("stdio_file_flush: bad magic number");
fflush (stdio->file);
}
static void
stdio_file_write (struct gdb_file *file, const char *buf, long length_buf)
{
struct stdio_file *stdio = gdb_file_data (file);
if (stdio->magic != &stdio_file_magic)
internal_error ("stdio_file_write: bad magic number");
fwrite (buf, length_buf, 1, stdio->file);
}
static void
stdio_file_fputs (linebuffer, file)
const char *linebuffer;
struct gdb_file *file;
{
struct stdio_file *stdio = gdb_file_data (file);
if (stdio->magic != &stdio_file_magic)
internal_error ("stdio_file_fputs: bad magic number");
fputs (linebuffer, stdio->file);
}
static int
stdio_file_isatty (file)
struct gdb_file *file;
{
struct stdio_file *stdio = gdb_file_data (file);
if (stdio->magic != &stdio_file_magic)
internal_error ("stdio_file_isatty: bad magic number");
return (isatty (fileno (stdio->file)));
}
/* Like fdopen(). Create a gdb_file from a previously opened FILE. */
struct gdb_file *
stdio_fileopen (file)
FILE *file;
{
return stdio_file_new (file, 0);
}
GDB_FILE *
gdb_fopen (name, mode)
char *name;
char *mode;
{
FILE *f = fopen (name, mode);
if (f == NULL)
return NULL;
return stdio_file_new (f, 1);
}

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/* GDB_FILE - a generic STDIO like output stream.
Copyright (C) 1999, 2000 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef GDB_FILE_H
#define GDB_FILE_H
struct gdb_file;
/* Create a generic gdb_file object with null methods. */
extern struct gdb_file *gdb_file_new (void);
/* Override methods used by specific implementations of a GDB_FILE
object. */
typedef void (gdb_file_flush_ftype) (struct gdb_file * stream);
extern void set_gdb_file_flush (struct gdb_file *stream, gdb_file_flush_ftype * flush);
/* NOTE: Both fputs and write methods are available. Default
implementations that mapping one onto the other are included. */
typedef void (gdb_file_write_ftype) (struct gdb_file * stream, const char *buf, long length_buf);
extern void set_gdb_file_write (struct gdb_file *stream, gdb_file_write_ftype *fputs);
typedef void (gdb_file_fputs_ftype) (const char *, struct gdb_file * stream);
extern void set_gdb_file_fputs (struct gdb_file *stream, gdb_file_fputs_ftype * fputs);
typedef int (gdb_file_isatty_ftype) (struct gdb_file * stream);
extern void set_gdb_file_isatty (struct gdb_file *stream, gdb_file_isatty_ftype * isatty);
typedef void (gdb_file_rewind_ftype) (struct gdb_file * stream);
extern void set_gdb_file_rewind (struct gdb_file *stream, gdb_file_rewind_ftype * rewind);
typedef void (gdb_file_put_method_ftype) (void *object, const char *buffer, long length_buffer);
typedef void (gdb_file_put_ftype) (struct gdb_file *stream, gdb_file_put_method_ftype * method, void *context);
extern void set_gdb_file_put (struct gdb_file *stream, gdb_file_put_ftype * put);
typedef void (gdb_file_delete_ftype) (struct gdb_file * stream);
extern void set_gdb_file_data (struct gdb_file *stream, void *data, gdb_file_delete_ftype * delete);
extern void *gdb_file_data (struct gdb_file *file);
extern void gdb_flush (struct gdb_file *);
extern void gdb_file_delete (struct gdb_file *stream);
extern void gdb_file_rewind (struct gdb_file *stream);
extern int gdb_file_isatty (struct gdb_file *);
extern void gdb_file_write (struct gdb_file *file, const char *buf, long length_buf);
/* NOTE: copies left to right */
extern void gdb_file_put (struct gdb_file *src, gdb_file_put_method_ftype *write, void *dest);
/* Returns a freshly allocated buffer containing the entire contents
of FILE (as determined by gdb_file_put()) with a NUL character
appended. LENGTH is set to the size of the buffer minus that
appended NUL. */
extern char *gdb_file_xstrdup (struct gdb_file *file, long *length);
/* Create/open a memory based file. Can be used as a scratch buffer
for collecting output. */
extern struct gdb_file *mem_fileopen (void);
/* Open/create a an STDIO based GDB_FILE using the already open FILE. */
extern struct gdb_file *stdio_fileopen (FILE *file);
/* Open NAME returning an STDIO based GDB_FILE. */
extern GDB_FILE *gdb_fopen (char *name, char *mode);
#endif