1 files changed, 77 insertions, 0 deletions
diff --git a/lib/command.c b/lib/command.c
new file mode 100644
index 00000000..be59c38d
--- /dev/null
+++ b/lib/command.c
@@ -0,0 +1,77 @@
+/* $Id$ */
+
+/* Copyright (C) 1998-99 Martin Baulig
+   This file is part of LibGTop 1.0.
+
+   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
+
+   LibGTop 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.
+
+   LibGTop 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 LibGTop; see the file COPYING. If not, write to the
+   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.
+*/
+
+#include <glibtop/read.h>
+#include <glibtop/write.h>
+#include <glibtop/read_data.h>
+
+#include <glibtop/command.h>
+#include <glibtop/xmalloc.h>
+
+void *
+glibtop_call_l (glibtop *server, unsigned command, size_t send_size,
+		const void *send_buf, size_t recv_size, void *recv_buf)
+{
+	glibtop_command cmnd;
+	glibtop_response response;
+
+	glibtop_init_r (&server, 0, 0);
+
+	memset (&cmnd, 0, sizeof (glibtop_command));
+
+	cmnd.command = command;
+
+	/* If send_size is less than _GLIBTOP_PARAM_SIZE (normally 16 Bytes), we
+	 * send it together with command, so we only need one system call instead
+	 * of two. */
+
+	if (send_size <= _GLIBTOP_PARAM_SIZE) {
+		memcpy (cmnd.parameter, send_buf, send_size);
+		cmnd.size = send_size;
+	} else {
+		cmnd.data_size = send_size;
+	}
+	
+	glibtop_write_l (server, sizeof (glibtop_command), &cmnd);
+
+	glibtop_read_l (server, sizeof (glibtop_response), &response);
+
+#ifdef DEBUG
+	fprintf (stderr, "RESPONSE: %lu - %d\n",
+		 response.offset, response.data_size);
+#endif
+
+	if (recv_buf)
+		memcpy (recv_buf, ((char *) &response) + response.offset,
+			recv_size);
+
+	if (response.data_size) {
+		void *ptr = glibtop_malloc_r (server, response.data_size);
+
+		glibtop_read_l (server, response.data_size, ptr);
+
+		return ptr;
+	}
+
+	return NULL;
+}