b3262820c5
1998-11-02 Martin Baulig <martin@home-of-linux.org> * include/glibtop/parameter.h: Added `GLIBTOP_PARAM_REQUIRED'. * lib/parameter.c (glibtop_set_parameter_l): It's no longer allowed to set GLIBTOP_PARAM_FEATURES. (glibtop_get_parameter_l): You can use `GLIBTOP_PARAM_REQUIRED' to read server->required and ... (glibtop_set_parameter_l): ... set it here.
97 lines
3.1 KiB
C
97 lines
3.1 KiB
C
/* $Id$ */
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/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
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This file is part of the Gnome Top Library.
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Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
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The Gnome Top Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The Gnome Top Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <glibtop.h>
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#include <glibtop/parameter.h>
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#define _write_data(ptr,size) \
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if ((data_ptr == NULL) || (data_size < size)) return -size; \
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if (ptr == NULL) { strcpy (data_ptr, ""); return 1; } \
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memcpy (data_ptr, ptr, size); \
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return size;
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#define _check_data(size) \
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if ((data_ptr == NULL) || (data_size != size)) { \
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glibtop_warn_r (server, "glibtop_set_parameter (%d): " \
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"Expected %lu bytes but got %lu.", \
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parameter, size, data_size); \
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return; \
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}
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#define _strlen(ptr) (ptr ? strlen (ptr) : 0)
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size_t
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glibtop_get_parameter_l (glibtop *server, const unsigned parameter,
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void *data_ptr, size_t data_size)
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{
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switch (parameter) {
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case GLIBTOP_PARAM_METHOD:
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_write_data (&server->method,
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sizeof (server->method));
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case GLIBTOP_PARAM_FEATURES:
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_write_data (&server->features,
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sizeof (server->features));
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case GLIBTOP_PARAM_COMMAND:
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_write_data (server->server_command,
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_strlen(server->server_command));
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case GLIBTOP_PARAM_HOST:
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_write_data (server->server_host,
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_strlen(server->server_host));
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case GLIBTOP_PARAM_PORT:
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_write_data (&server->server_port,
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sizeof (server->server_port));
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case GLIBTOP_PARAM_ERROR_METHOD:
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_write_data (&server->error_method,
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sizeof (server->error_method));
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case GLIBTOP_PARAM_REQUIRED:
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_write_data (&server->required,
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sizeof (server->required));
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}
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return 0;
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}
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void
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glibtop_set_parameter_l (glibtop *server, const unsigned parameter,
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const void *data_ptr, size_t data_size)
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{
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switch (parameter) {
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case GLIBTOP_PARAM_METHOD:
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_check_data (sizeof (server->method));
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memcpy (&server->method, data_ptr, data_size);
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break;
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case GLIBTOP_PARAM_FEATURES:
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/* You should not be allowed to set this field. */
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glibtop_warn_r (server, "glibtop_set_parameter (%d): " \
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"Cannot modify read-only value.",
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parameter);
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break;
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case GLIBTOP_PARAM_ERROR_METHOD:
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_check_data (sizeof (server->error_method));
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memcpy (&server->error_method, data_ptr, data_size);
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break;
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case GLIBTOP_PARAM_REQUIRED:
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_check_data (sizeof (server->required));
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memcpy (&server->required, data_ptr, data_size);
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break;
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}
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}
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