Added cygwin support.

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

sysdeps/cygwin/glibtop_private.h

@@ -0,0 +1,152 @@
+/* Copyright (C) 2004 Benoît Dejean
+   This file is part of LibGTop 2.0.
+
+   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.
+*/
+
+#ifndef __CYGWIN__GLIBTOP_PRIVATE_H__
+#define __CYGWIN__GLIBTOP_PRIVATE_H__
+
+#include <glibtop.h>
+#include <glibtop/error.h>
+
+#include <glib.h>
+
+#include <fcntl.h>
+#include <ctype.h>
+#include <string.h>
+
+G_BEGIN_DECLS
+
+
+static inline char*
+next_token(const char *p)
+{
+	while (isspace(*p)) p++;
+	return (char*) p;
+}
+
+char *
+skip_token (const char *p);
+
+static inline char *
+skip_multiple_token (const char *p, size_t count)
+{
+	while(count--)
+		p = skip_token (p);
+
+	return (char *)p;
+}
+
+
+static inline char *
+skip_line (const char *p)
+{
+	while (*p && *p != '\n') p++;
+	return (char *) (*p ? p+1 : p);
+}
+
+/*
+ * Smart strtoul which handles binary suffixes
+ * e.g: get_scaled("Size: 32 kB", "Size:") == 32768
+ * key can be NULL if there's not prefix to strip (or prefix size is known
+ */
+unsigned long long
+get_scaled(const char *buffer, const char *key);
+
+
+/* aborts on error */
+void
+file_to_buffer(glibtop *server, char *buffer, size_t bufsiz, const char *filename);
+
+/* return < 0 on error, otherwise 0 on success */
+int
+try_file_to_buffer(char *buffer, size_t bufsiz, const char *format, ...) G_GNUC_PRINTF(3, 4);
+
+
+/* some inline functions that wrap proc path
+ * as fast as macros :)
+ */
+
+static inline int
+proc_file_to_buffer (char *buffer, size_t bufsiz, const char *fmt, pid_t pid)
+{
+	return try_file_to_buffer(buffer, bufsiz, fmt, pid);
+}
+
+static inline int
+proc_stat_to_buffer (char *buffer, size_t bufsiz, pid_t pid)
+{
+	return proc_file_to_buffer(buffer, bufsiz, "/proc/%d/stat", pid);
+}
+
+static inline int
+proc_status_to_buffer (char *buffer, size_t bufsiz, pid_t pid)
+{
+	return proc_file_to_buffer(buffer, bufsiz, "/proc/%d/status", pid);
+}
+
+static inline int
+proc_statm_to_buffer (char *buffer, size_t bufsiz, pid_t pid)
+{
+	return proc_file_to_buffer(buffer, bufsiz, "/proc/%d/statm", pid);
+}
+
+
+static inline char *
+proc_stat_after_cmd (char *p)
+{
+	p = strrchr (p, ')');
+	if (G_LIKELY(p))
+		*p++ = '\0';
+	return p;
+}
+
+
+unsigned long
+get_boot_time(glibtop *server);
+
+
+size_t
+get_page_size(void);
+
+
+gboolean
+check_cpu_line(glibtop *server, const char *line, unsigned n);
+
+
+static inline gboolean
+check_cpu_line_warn(glibtop *server, const char *line, unsigned i)
+{
+	gboolean ret;
+
+	ret = check_cpu_line(server, line, i);
+
+	if (G_UNLIKELY(!ret))
+		glibtop_warn_io_r(server,
+				  "'%s' does not start with 'cpu%u'",
+				  line, i);
+
+	return ret;
+}
+
+
+gboolean safe_readlink(const char *path, char *buf, size_t bufsiz);
+
+
+G_END_DECLS
+
+#endif /* __CYGWIN__GLIBTOP_PRIVATE_H__ */