1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
// Take a look at the license at the top of the repository in the LICENSE file.
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <pthread.h>
#include "sysinfo.h"
void print_process(CProcess process) {
RString exe = sysinfo_process_executable_path(process);
printf("process[%d]: parent: %d,\n"
" cpu_usage: %f,\n"
" memory: %ld,\n"
" virtual memory: %ld,\n"
" executable path: '%s'\n",
sysinfo_process_pid(process),
sysinfo_process_parent_pid(process),
sysinfo_process_cpu_usage(process),
sysinfo_process_memory(process),
sysinfo_process_virtual_memory(process),
exe);
sysinfo_rstring_free(exe);
}
void check_tasks(CSystem system) {
#ifdef __linux__
bool task_loop(pid_t pid, CProcess process, void *data) {
(void)data;
printf(" ");
print_process(process);
return true;
}
void *sleeping_func(void *data) {
sleep(3);
return data;
}
pthread_t thread;
pthread_create(&thread, NULL, sleeping_func, NULL);
sysinfo_refresh_processes(system);
CProcess process = sysinfo_process_by_pid(system, getpid());
printf("\n== Task(s) for current process: ==\n");
print_process(process);
printf("Got %ld task(s)\n", sysinfo_process_tasks(process, task_loop, NULL));
#else
(void)system;
#endif
}
bool process_loop(pid_t pid, CProcess process, void *data) {
unsigned int *i = data;
print_process(process);
*i += 1;
return *i < 10;
}
int main() {
CSystem system = sysinfo_init();
CNetworks networks = sysinfo_networks_init();
sysinfo_refresh_all(system);
sysinfo_networks_refresh(networks);
printf("os name: %s\n", sysinfo_system_name(system));
printf("os version: %s\n", sysinfo_system_version(system));
printf("kernel version: %s\n", sysinfo_system_kernel_version(system));
printf("long os version: %s\n", sysinfo_system_long_version(system));
printf("host name: %s\n", sysinfo_system_host_name(system));
printf("cpu vendor id: %s\n", sysinfo_cpu_vendor_id(system));
printf("cpu brand: %s\n", sysinfo_cpu_brand(system));
printf("cpu frequency: %ld\n", sysinfo_cpu_frequency(system));
printf("cpu cores: %d\n", sysinfo_cpu_physical_cores(system));
printf("total memory: %ld\n", sysinfo_total_memory(system));
printf("free memory: %ld\n", sysinfo_free_memory(system));
printf("used memory: %ld\n", sysinfo_used_memory(system));
printf("total swap: %ld\n", sysinfo_total_swap(system));
printf("free swap: %ld\n", sysinfo_free_swap(system));
printf("used swap: %ld\n", sysinfo_used_swap(system));
printf("networks received: %ld\n", sysinfo_networks_received(networks));
printf("networks transmitted: %ld\n", sysinfo_networks_transmitted(networks));
unsigned int len = 0, i = 0;
float *procs = NULL;
sysinfo_cpus_usage(system, &len, &procs);
while (i < len) {
printf("CPU #%d usage: %f%%\n", i, procs[i]);
i += 1;
}
free(procs);
// processes part
i = 0;
printf("For a total of %ld processes.\n", sysinfo_processes(system, process_loop, &i));
check_tasks(system);
// we can now free the CSystem and the CNetworks objects.
sysinfo_destroy(system);
sysinfo_networks_destroy(networks);
return 0;
}
|
