69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
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/* $Id$ */
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/* Copyright (C) 1998-99 Martin Baulig
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This file is part of LibGTop 1.0.
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Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/xmalloc.h>
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#include <glibtop/backend.h>
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#include <glibtop-backend-private.h>
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#ifndef DEBUG
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#define DEBUG 1
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#endif
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void *
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glibtop_read_data_i (glibtop *server, glibtop_backend *backend)
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{
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size_t size;
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void *ptr;
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int ret;
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#ifdef DEBUG
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fprintf (stderr, "LIBRARY: reading %d data bytes.\n", sizeof (size_t));
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#endif
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ret = read (backend->_priv->input [0], (void *)&size,
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sizeof (size_t));
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if (ret < 0)
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glibtop_error_io_r (server, "read data size");
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#ifdef DEBUG
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fprintf (stderr, "LIBRARY: really reading %d data bytes (ret = %d).\n", size, ret);
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#endif
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if (!size) return NULL;
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ptr = glibtop_malloc_r (server, size);
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ret = read (backend->_priv->input [0], ptr, size);
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if (ret < 0)
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glibtop_error_io_r (server, "read data %d bytes");
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return ptr;
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}
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