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Diffstat (limited to 'include/glibtop/procio.h')
| -rw-r--r-- | include/glibtop/procio.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/include/glibtop/procio.h b/include/glibtop/procio.h new file mode 100644 index 00000000..86c06e5d --- /dev/null +++ b/include/glibtop/procio.h @@ -0,0 +1,93 @@ +/* Copyright (C) 2017 Robert Roth + This file is part of LibGTop. + + Contributed by Robert Roth <robert.roth.off@gmail.com>, February 2017. + + 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., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#ifndef __GLIBTOP_PROCIO_H__ +#define __GLIBTOP_PROCIO_H__ + +#include <glibtop.h> +#include <glibtop/global.h> + +G_BEGIN_DECLS + +#define GLIBTOP_PROC_IO_DISK_RCHAR 0 +#define GLIBTOP_PROC_IO_DISK_WCHAR 1 +#define GLIBTOP_PROC_IO_DISK_RBYTES 2 +#define GLIBTOP_PROC_IO_DISK_WBYTES 3 + +#define GLIBTOP_MAX_PROC_IO 3 + +typedef struct _glibtop_proc_io glibtop_proc_io; + +/* Time section */ + +/** + * glibtop_proc_io: + * @disk_rchar: The number of bytes which this task has caused to be read from storage. This + * is simply the sum of bytes which this process passed to read() and pread(), also including tty IO, + * and it is unaffected by whether or not actual physical disk IO was required. + * @disk_wchar: The number of bytes which this task has caused, or shall cause to be written + * to disk. Similar caveats apply here as with rchar. + * @disk_rbytes: Attempt to count the number of bytes which this process really did cause to + * be fetched from the storage layer. Done at the submit_bio() level, so it is + * accurate for block-backed filesystems. + * @disk_wbytes: Attempt to count the number of bytes which this process caused to be sent to + * the storage layer. This is done at page-dirtying time. + * + * Process disk io data filled by glibtop_get_proc_io(). + * + */ +struct _glibtop_proc_io +{ + /*< private >*/ + guint64 flags; + /*< public >*/ + guint64 disk_rchar; + guint64 disk_wchar; + guint64 disk_rbytes; + guint64 disk_wbytes; + + /* reserved for future extensions, e.g. per-process netio */ + guint64 reserved[10]; +}; + + +void glibtop_get_proc_io (glibtop_proc_io *buf, pid_t pid); + +#if GLIBTOP_SUID_PROC_IO +#define glibtop_get_proc_io_r glibtop_get_proc_io_p +#else +#define glibtop_get_proc_io_r glibtop_get_proc_io_s +#endif + +void glibtop_get_proc_io_l (glibtop *server, glibtop_proc_io *buf, pid_t pid); + +#if GLIBTOP_SUID_PROC_IO +void _glibtop_init_proc_io_p (glibtop *server); +void glibtop_get_proc_io_p (glibtop *server, glibtop_proc_io *buf, pid_t pid); +#else +void _glibtop_init_proc_io_s (glibtop *server); +void glibtop_get_proc_io_s (glibtop *server, glibtop_proc_io *buf, pid_t pid); +#endif + + +G_END_DECLS + +#endif |