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Another example, this time a complete interface to the libstatgrab library.

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# When protected method are implemented we will be able to hide
# initialization methods, that users should not be able to access manually.
This commit is contained in:
Ilia Alshanetsky
2004-01-28 19:23:53 +00:00
parent 72a38f446b
commit d662743953
1 changed files with 136 additions and 0 deletions
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examples/statgrab.php Normal file
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<?php
/* Interface to libstatgrab library via ffi */
class statg extends ffi
{
function __construct()
{
parent::__construct(<<<EOD
struct load_stat_t {
double min1;
double min5;
double min15;
};
struct cpu_percent_t {
float user;
float kernel;
float idle;
float iowait;
float swap;
float nice;
long time_taken;
};
struct cpu_states_t {
sint64 user;
sint64 kernel;
sint64 idle;
sint64 iowait;
sint64 swap;
sint64 nice;
sint64 total;
long systime;
};
struct diskio_stat_t {
char *disk_name;
sint64 read_bytes;
sint64 write_bytes;
long systime;
};
struct general_stat_t {
char *os_name;
char *os_release;
char *os_version;
char *platform;
char *hostname;
long uptime;
};
struct mem_stat_t {
sint64 total;
sint64 free;
sint64 used;
sint64 cache;
};
struct swap_stat_t {
sint64 total;
sint64 used;
sint64 free;
};
struct network_stat_t {
char *interface_name;
sint64 tx;
sint64 rx;
long systime;
};
struct page_stat_t {
sint64 pages_pagein;
sint64 pages_pageout;
long systime;
};
struct process_stat_t {
int total;
int running;
int sleeping;
int stopped;
int zombie;
};
struct user_stat_t {
char *name_list;
int num_entries;
};
[lib='libstatgrab.so']
struct load_stat_t *get_load_stats();
struct cpu_percent_t *cpu_percent_usage();
struct cpu_states_t *get_cpu_totals();
struct cpu_states_t *get_cpu_diff();
struct diskio_stat_t *get_diskio_stats(int entries);
struct diskio_stat_t *get_diskio_stats_diff(int entries);
struct general_stat_t *get_general_stats();
struct mem_stat_t *get_memory_stats();
struct swap_stat_t *get_swap_stats();
struct network_stat_t *get_network_stats(int entries);
struct network_stat_t *get_network_stats_diff(int entries);
struct page_stat_t *get_page_stats();
struct page_stat_t *get_page_stats_diff();
struct process_stat_t *get_process_stats();
struct user_stat_t *get_user_stats();
void statgrab_init();
int statgrab_drop_privileges();
EOD
);
/* some initialization routines */
$this->statgrab_init();
if ($this->statgrab_drop_privileges() != 0) {
throw new Exception('Failed to initialize statgrab');
}
}
}
/* Sample usage */
$ffi = new statg();
$ls = $ffi->get_load_stats();
var_dump($ls->min1, $ls->min5, $ls->min15);
$ps = $ffi->get_process_stats();
var_dump($ps->total);
$us = $ffi->get_user_stats();
var_dump($us->name_list);
?>