Added cygwin support.

Patch by Cygwin Ports maintainer <yselkowitz@users.sourceforge.net>.
See #578890.

sysdeps/cygwin/procsegment.c

@@ -0,0 +1,88 @@
+/* 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 <config.h>
+#include <glibtop/error.h>
+#include <glibtop/procsegment.h>
+
+#include "glibtop_private.h"
+
+static const unsigned long _glibtop_sysdeps_proc_segment =
+(1L << GLIBTOP_PROC_SEGMENT_START_CODE) +
+(1L << GLIBTOP_PROC_SEGMENT_END_CODE) +
+(1L << GLIBTOP_PROC_SEGMENT_START_STACK);
+
+static const unsigned long _glibtop_sysdeps_proc_segment_statm =
+(1L << GLIBTOP_PROC_SEGMENT_TEXT_RSS) +
+(1L << GLIBTOP_PROC_SEGMENT_DATA_RSS) +
+(1L << GLIBTOP_PROC_SEGMENT_DIRTY_SIZE);
+
+/* Init function. */
+
+void
+_glibtop_init_proc_segment_s (glibtop *server)
+{
+	server->sysdeps.proc_segment = _glibtop_sysdeps_proc_segment |
+	  _glibtop_sysdeps_proc_segment_statm;
+}
+
+/* Provides detailed information about a process. */
+
+void
+glibtop_get_proc_segment_s (glibtop *server, glibtop_proc_segment *buf,
+			    pid_t pid)
+{
+	char buffer [BUFSIZ], *p;
+	const size_t pagesize = get_page_size();
+
+	memset (buf, 0, sizeof (glibtop_proc_segment));
+
+	if (proc_stat_to_buffer(buffer, sizeof buffer, pid))
+		return;
+
+	p = proc_stat_after_cmd (buffer);
+	if (!p) return;
+
+	p = skip_multiple_token (p, 23);
+
+	buf->start_code  = strtoull (p, &p, 0);
+	buf->end_code    = strtoull (p, &p, 0);
+	buf->start_stack = strtoull (p, &p, 0);
+
+	buf->flags = _glibtop_sysdeps_proc_segment;
+
+	if (proc_statm_to_buffer(buffer, sizeof buffer, pid))
+		return;
+
+	p = skip_multiple_token (buffer, 3);
+
+	buf->text_rss   = strtoull (p, &p, 0);
+	buf->shlib_rss  = strtoull (p, &p, 0);
+	buf->data_rss   = strtoull (p, &p, 0);
+	buf->dirty_size = strtoull (p, &p, 0);
+
+	buf->text_rss   *= pagesize;
+	buf->shlib_rss  *= pagesize;
+	buf->data_rss   *= pagesize;
+	buf->dirty_size *= pagesize;
+
+	buf->flags |= _glibtop_sysdeps_proc_segment_statm;
+}