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/*
* Copyright (c) 2004-2008 Hyperic, Inc.
* Copyright (c) 2009 SpringSource, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SIGAR_UTIL_H
#define SIGAR_UTIL_H
/* most of this is crap for dealing with linux /proc */
#define UITOA_BUFFER_SIZE \
(sizeof(int) * 3 + 1)
#define SSTRLEN(s) \
(sizeof(s)-1)
#define sigar_strtoul(ptr) \
strtoul(ptr, &ptr, 10)
#define sigar_strtoull(ptr) \
strtoull(ptr, &ptr, 10)
#define sigar_isspace(c) \
(isspace(((unsigned char)(c))))
#define sigar_isdigit(c) \
(isdigit(((unsigned char)(c))))
#define sigar_isalpha(c) \
(isalpha(((unsigned char)(c))))
#define sigar_isupper(c) \
(isupper(((unsigned char)(c))))
#define sigar_tolower(c) \
(tolower(((unsigned char)(c))))
#ifdef WIN32
#define sigar_fileno _fileno
#define sigar_isatty _isatty
#define sigar_write _write
#else
#define sigar_fileno fileno
#define sigar_isatty isatty
#define sigar_write write
#endif
#ifndef PROC_FS_ROOT
#define PROC_FS_ROOT "/proc/"
#endif
#ifndef PROCP_FS_ROOT
#define PROCP_FS_ROOT "/proc/"
#endif
sigar_int64_t sigar_time_now_millis(void);
char *sigar_uitoa(char *buf, unsigned int n, int *len);
int sigar_inet_ntoa(sigar_t *sigar,
sigar_uint32_t address,
char *addr_str);
struct hostent *sigar_gethostbyname(const char *name,
sigar_hostent_t *data);
SIGAR_INLINE char *sigar_skip_line(char *buffer, int buflen);
SIGAR_INLINE char *sigar_skip_token(char *p);
SIGAR_INLINE char *sigar_skip_multiple_token(char *p, int count);
char *sigar_getword(char **line, char stop);
char *sigar_strcasestr(const char *s1, const char *s2);
int sigar_file2str(const char *fname, char *buffer, int buflen);
int sigar_proc_file2str(char *buffer, int buflen,
sigar_pid_t pid,
const char *fname,
int fname_len);
#define SIGAR_PROC_FILE2STR(buffer, pid, fname) \
sigar_proc_file2str(buffer, sizeof(buffer), \
pid, fname, SSTRLEN(fname))
#define SIGAR_PROC_FILENAME(buffer, pid, fname) \
sigar_proc_filename(buffer, sizeof(buffer), \
pid, fname, SSTRLEN(fname))
#define SIGAR_SKIP_SPACE(ptr) \
while (sigar_isspace(*ptr)) ++ptr
char *sigar_proc_filename(char *buffer, int buflen,
sigar_pid_t pid,
const char *fname, int fname_len);
int sigar_proc_list_procfs_get(sigar_t *sigar,
sigar_proc_list_t *proclist);
int sigar_proc_fd_count(sigar_t *sigar, sigar_pid_t pid,
sigar_uint64_t *total);
/* linux + freebsd */
int sigar_procfs_args_get(sigar_t *sigar, sigar_pid_t pid,
sigar_proc_args_t *procargs);
int sigar_mem_calc_ram(sigar_t *sigar, sigar_mem_t *mem);
int sigar_statvfs(sigar_t *sigar,
const char *dirname,
sigar_file_system_usage_t *fsusage);
double sigar_file_system_usage_calc_used(sigar_t *sigar,
sigar_file_system_usage_t *fs);
#define SIGAR_DEV_PREFIX "/dev/"
#define SIGAR_NAME_IS_DEV(dev) \
strnEQ(dev, SIGAR_DEV_PREFIX, SSTRLEN(SIGAR_DEV_PREFIX))
typedef struct {
char name[256];
int is_partition;
sigar_disk_usage_t disk;
} sigar_iodev_t;
sigar_iodev_t *sigar_iodev_get(sigar_t *sigar,
const char *dirname);
int sigar_cpu_core_count(sigar_t *sigar);
/* e.g. VM guest may have 1 virtual ncpu on multicore hosts */
#define sigar_cpu_socket_count(sigar) \
(sigar->ncpu < sigar->lcpu) ? sigar->ncpu : \
(sigar->ncpu / sigar->lcpu)
int sigar_cpu_core_rollup(sigar_t *sigar);
void sigar_cpu_model_adjust(sigar_t *sigar, sigar_cpu_info_t *info);
int sigar_cpu_mhz_from_model(char *model);
char *sigar_get_self_path(sigar_t *sigar);
#if defined(__sun) || defined(__FreeBSD__)
#define SIGAR_HAS_DLINFO_MODULES
#include <dlfcn.h>
#include <link.h>
int sigar_dlinfo_modules(sigar_t *sigar, sigar_proc_modules_t *procmods);
#endif
typedef struct sigar_cache_entry_t sigar_cache_entry_t;
struct sigar_cache_entry_t {
sigar_cache_entry_t *next;
sigar_uint64_t id;
void *value;
};
typedef struct {
sigar_cache_entry_t **entries;
unsigned int count, size;
void (*free_value)(void *ptr);
} sigar_cache_t;
sigar_cache_t *sigar_cache_new(int size);
sigar_cache_entry_t *sigar_cache_get(sigar_cache_t *table,
sigar_uint64_t key);
sigar_cache_entry_t *sigar_cache_find(sigar_cache_t *table,
sigar_uint64_t key);
void sigar_cache_destroy(sigar_cache_t *table);
#endif /* SIGAR_UTIL_H */
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