FreeChainXenon/binutils-gdb
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2012-12-18 Hui Zhu <hui_zhu@mentor.com>

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* ui-file.c (ui_file): Add to_fseek.
	(ui_file_new): Call set_ui_file_fseek.
	(null_file_fseek, ui_file_fseek, set_ui_file_fseek,
	 stdio_file_fseek): New functions.
	(stdio_file_new): Call set_ui_file_fseek.
	* ui-file.h (ui_file_fseek_ftype): New typedef.
	(set_ui_file_fseek, ui_file_fseek): New externs.
This commit is contained in:
Hui Zhu 2012-12-18 07:01:58 +00:00
parent 3f453875a4
commit 2a9d5ccf79
3 changed files with 54 additions and 0 deletions
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37
gdb/ui-file.c
View file

@ -36,6 +36,7 @@ static ui_file_flush_ftype null_file_flush;
static ui_file_delete_ftype null_file_delete;
static ui_file_rewind_ftype null_file_rewind;
static ui_file_put_ftype null_file_put;
static ui_file_fseek_ftype null_file_fseek;
struct ui_file
{
@ -49,6 +50,7 @@ struct ui_file
ui_file_isatty_ftype *to_isatty;
ui_file_rewind_ftype *to_rewind;
ui_file_put_ftype *to_put;
ui_file_fseek_ftype *to_fseek;
void *to_data;
};
int ui_file_magic;
@ -68,6 +70,7 @@ ui_file_new (void)
set_ui_file_isatty (file, null_file_isatty);
set_ui_file_rewind (file, null_file_rewind);
set_ui_file_put (file, null_file_put);
set_ui_file_fseek (file, null_file_fseek);
return file;
}
@ -170,6 +173,14 @@ null_file_delete (struct ui_file *file)
return;
}
static int
null_file_fseek (struct ui_file *stream, long offset, int whence)
{
errno = EBADF;
return -1;
}
void *
ui_file_data (struct ui_file *file)
{
@ -227,6 +238,12 @@ ui_file_read (struct ui_file *file, char *buf, long length_buf)
return file->to_read (file, buf, length_buf);
}
int
ui_file_fseek (struct ui_file *file, long offset, int whence)
{
return file->to_fseek (file, offset, whence);
}
void
fputs_unfiltered (const char *buf, struct ui_file *file)
{
@ -283,6 +300,12 @@ set_ui_file_fputs (struct ui_file *file, ui_file_fputs_ftype *fputs_ptr)
file->to_fputs = fputs_ptr;
}
void
set_ui_file_fseek (struct ui_file *file, ui_file_fseek_ftype *fseek_ptr)
{
file->to_fseek = fseek_ptr;
}
void
set_ui_file_data (struct ui_file *file, void *data,
ui_file_delete_ftype *delete_ptr)
@ -469,6 +492,7 @@ static ui_file_isatty_ftype stdio_file_isatty;
static ui_file_delete_ftype stdio_file_delete;
static struct ui_file *stdio_file_new (FILE *file, int close_p);
static ui_file_flush_ftype stdio_file_flush;
static ui_file_fseek_ftype stdio_file_fseek;
static int stdio_file_magic;
@ -499,6 +523,7 @@ stdio_file_new (FILE *file, int close_p)
set_ui_file_fputs (ui_file, stdio_file_fputs);
set_ui_file_read (ui_file, stdio_file_read);
set_ui_file_isatty (ui_file, stdio_file_isatty);
set_ui_file_fseek (ui_file, stdio_file_fseek);
return ui_file;
}
@ -616,6 +641,18 @@ stdio_file_isatty (struct ui_file *file)
return (isatty (stdio->fd));
}
static int
stdio_file_fseek (struct ui_file *file, long offset, int whence)
{
struct stdio_file *stdio = ui_file_data (file);
if (stdio->magic != &stdio_file_magic)
internal_error (__FILE__, __LINE__,
_("stdio_file_fseek: bad magic number"));
return fseek (stdio->file, offset, whence);
}
/* Like fdopen(). Create a ui_file from a previously opened FILE. */
struct ui_file *