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/* $Id$ */
/* 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>
/* Reads some data from server. */
static void
do_read (int s, void *ptr, size_t total_size)
{
int nread;
size_t already_read = 0, remaining = total_size;
char *tmp_ptr;
while (already_read < total_size) {
nread = recv (s, ptr, remaining, 0);
if (nread == 0) {
close (s);
continue;
}
if (nread <= 0) {
glibtop_error_io ("recv");
return;
}
already_read += nread;
remaining -= nread;
/* (char *) ptr += nread; */
tmp_ptr = ptr;
tmp_ptr += nread;
ptr = tmp_ptr;
}
}
void
glibtop_read_l (glibtop *server, size_t size, void *buf)
{
int ret = 0;
glibtop_init_r (&server, 0, 0);
#ifdef DEBUG
fprintf (stderr, "LIBRARY: really reading %d bytes.\n", size);
#endif
if (server->socket) {
do_read (server->socket, buf, size);
} else {
ret = read (server->input [0], buf, size);
}
if (ret < 0)
glibtop_error_io_r (server, ngettext ("read %d byte", "read %d bytes", size), size);
}
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