/* UI_FILE - a generic STDIO like output stream.
- Copyright (C) 1999, 2000, 2001, 2002, 2007, 2008, 2009
+ Copyright (C) 1999, 2000, 2001, 2002, 2007, 2008, 2009, 2010
Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "ui-file.h"
+#include "gdb_obstack.h"
#include "gdb_string.h"
+#include "gdb_select.h"
#include <errno.h>
ui_file_new (void)
{
struct ui_file *file = xmalloc (sizeof (struct ui_file));
+
file->magic = &ui_file_magic;
set_ui_file_data (file, NULL, null_file_delete);
set_ui_file_flush (file, null_file_flush);
is possible to clean up that code. */
int i;
char b[2];
+
b[1] = '\0';
for (i = 0; i < sizeof_buf; i++)
{
}
/* ui_file utility function for converting a ``struct ui_file'' into
- a memory buffer''. */
+ a memory buffer. */
struct accumulated_ui_file
{
do_ui_file_xstrdup (void *context, const char *buffer, long length)
{
struct accumulated_ui_file *acc = context;
+
if (acc->buffer == NULL)
acc->buffer = xmalloc (length + 1);
else
ui_file_xstrdup (struct ui_file *file, long *length)
{
struct accumulated_ui_file acc;
+
acc.buffer = NULL;
acc.length = 0;
ui_file_put (file, do_ui_file_xstrdup, &acc);
*length = acc.length;
return acc.buffer;
}
+
+static void
+do_ui_file_obsavestring (void *context, const char *buffer, long length)
+{
+ struct obstack *obstack = (struct obstack *) context;
+
+ obstack_grow (obstack, buffer, length);
+}
+
+char *
+ui_file_obsavestring (struct ui_file *file, struct obstack *obstack,
+ long *length)
+{
+ ui_file_put (file, do_ui_file_obsavestring, obstack);
+ *length = obstack_object_size (obstack);
+ obstack_1grow (obstack, '\0');
+ return obstack_finish (obstack);
+}
\f
/* A pure memory based ``struct ui_file'' that can be used an output
buffer. The buffers accumulated contents are available via
{
struct mem_file *stream = XMALLOC (struct mem_file);
struct ui_file *file = ui_file_new ();
+
set_ui_file_data (file, stream, mem_file_delete);
set_ui_file_rewind (file, mem_file_rewind);
set_ui_file_put (file, mem_file_put);
mem_file_delete (struct ui_file *file)
{
struct mem_file *stream = ui_file_data (file);
+
if (stream->magic != &mem_file_magic)
internal_error (__FILE__, __LINE__,
_("mem_file_delete: bad magic number"));
mem_file_rewind (struct ui_file *file)
{
struct mem_file *stream = ui_file_data (file);
+
if (stream->magic != &mem_file_magic)
internal_error (__FILE__, __LINE__,
_("mem_file_rewind: bad magic number"));
void *dest)
{
struct mem_file *stream = ui_file_data (file);
+
if (stream->magic != &mem_file_magic)
internal_error (__FILE__, __LINE__,
_("mem_file_put: bad magic number"));
long length_buffer)
{
struct mem_file *stream = ui_file_data (file);
+
if (stream->magic != &mem_file_magic)
internal_error (__FILE__, __LINE__,
_("mem_file_write: bad magic number"));
else
{
int new_length = stream->length_buffer + length_buffer;
+
if (new_length >= stream->sizeof_buffer)
{
stream->sizeof_buffer = new_length;
{
struct ui_file *ui_file = ui_file_new ();
struct stdio_file *stdio = xmalloc (sizeof (struct stdio_file));
+
stdio->magic = &stdio_file_magic;
stdio->file = file;
stdio->close_p = close_p;
stdio_file_delete (struct ui_file *file)
{
struct stdio_file *stdio = ui_file_data (file);
+
if (stdio->magic != &stdio_file_magic)
internal_error (__FILE__, __LINE__,
_("stdio_file_delete: bad magic number"));
stdio_file_flush (struct ui_file *file)
{
struct stdio_file *stdio = ui_file_data (file);
+
if (stdio->magic != &stdio_file_magic)
internal_error (__FILE__, __LINE__,
_("stdio_file_flush: bad magic number"));
stdio_file_read (struct ui_file *file, char *buf, long length_buf)
{
struct stdio_file *stdio = ui_file_data (file);
+
if (stdio->magic != &stdio_file_magic)
internal_error (__FILE__, __LINE__,
_("stdio_file_read: bad magic number"));
+
+ /* For the benefit of Windows, call gdb_select before reading from
+ the file. Wait until at least one byte of data is available.
+ Control-C can interrupt gdb_select, but not read. */
+ {
+ int fd = fileno (stdio->file);
+
+ fd_set readfds;
+ FD_ZERO (&readfds);
+ FD_SET (fd, &readfds);
+ if (gdb_select (fd + 1, &readfds, NULL, NULL, NULL) == -1)
+ return -1;
+ }
+
return read (fileno (stdio->file), buf, length_buf);
}
stdio_file_write (struct ui_file *file, const char *buf, long length_buf)
{
struct stdio_file *stdio = ui_file_data (file);
+
if (stdio->magic != &stdio_file_magic)
internal_error (__FILE__, __LINE__,
_("stdio_file_write: bad magic number"));
stdio_file_fputs (const char *linebuffer, struct ui_file *file)
{
struct stdio_file *stdio = ui_file_data (file);
+
if (stdio->magic != &stdio_file_magic)
internal_error (__FILE__, __LINE__,
_("stdio_file_fputs: bad magic number"));
stdio_file_isatty (struct ui_file *file)
{
struct stdio_file *stdio = ui_file_data (file);
+
if (stdio->magic != &stdio_file_magic)
internal_error (__FILE__, __LINE__,
_("stdio_file_isatty: bad magic number"));
gdb_fopen (char *name, char *mode)
{
FILE *f = fopen (name, mode);
+
if (f == NULL)
return NULL;
return stdio_file_new (f, 1);
{
struct ui_file *ui_file = ui_file_new ();
struct tee_file *tee = xmalloc (sizeof (struct tee_file));
+
tee->magic = &tee_file_magic;
tee->one = one;
tee->two = two;
tee_file_delete (struct ui_file *file)
{
struct tee_file *tee = ui_file_data (file);
+
if (tee->magic != &tee_file_magic)
internal_error (__FILE__, __LINE__,
_("tee_file_delete: bad magic number"));
tee_file_flush (struct ui_file *file)
{
struct tee_file *tee = ui_file_data (file);
+
if (tee->magic != &tee_file_magic)
internal_error (__FILE__, __LINE__,
_("tee_file_flush: bad magic number"));
tee_file_write (struct ui_file *file, const char *buf, long length_buf)
{
struct tee_file *tee = ui_file_data (file);
+
if (tee->magic != &tee_file_magic)
internal_error (__FILE__, __LINE__,
_("tee_file_write: bad magic number"));
tee_file_fputs (const char *linebuffer, struct ui_file *file)
{
struct tee_file *tee = ui_file_data (file);
+
if (tee->magic != &tee_file_magic)
internal_error (__FILE__, __LINE__,
_("tee_file_fputs: bad magic number"));
tee_file_isatty (struct ui_file *file)
{
struct tee_file *tee = ui_file_data (file);
+
if (tee->magic != &tee_file_magic)
internal_error (__FILE__, __LINE__,
_("tee_file_isatty: bad magic number"));
- return (0);
+
+ return ui_file_isatty (tee->one);
}