sigar/include/sigar_util.h

87 lines
2.3 KiB
C

#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_isspace(c) \
(isspace(((unsigned char)(c))))
#define sigar_isdigit(c) \
(isdigit(((unsigned char)(c))))
#define sigar_isalpha(c) \
(isalpha(((unsigned char)(c))))
#define PROC_FS_ROOT "/proc/"
char *sigar_uitoa(char *buf, unsigned int n, int *len);
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);
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);
/* generic util functions for all platforms */
int sigar_proc_count(sigar_t *sigar, sigar_uint64_t *total);
int sigar_mem_calc_ram(sigar_t *sigar, sigar_mem_t *mem);
double sigar_file_system_usage_calc_used(sigar_t *sigar,
sigar_file_system_usage_t *fs);
void sigar_cpu_model_adjust(sigar_t *sigar, sigar_cpu_info_t *info);
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;
#endif /* SIGAR_UTIL_H */