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/* 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef __LINUX__GLIBTOP_PRIVATE_H__
#define __LINUX__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
#define LINUX_VERSION_CODE(x,y,z) (0x10000*(x) + 0x100*(y) + z)
static inline char*
next_token(const char *p)
{
while (g_ascii_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);
}
int
check_alphanumeric_word (const char *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);
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
has_sysfs(void) G_GNUC_CONST;
gboolean safe_readlink(const char *path, char *buf, size_t bufsiz);
G_END_DECLS
#endif /* __LINUX__GLIBTOP_PRIVATE_H__ */
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