mirror of
https://github.com/ish-app/ish.git
synced 2026-01-25 14:06:40 +00:00
088e7b727d
Also a bunch of somewhat related changes, I was too lazy to break this into more than one commit
84 lines
2.8 KiB
C
84 lines
2.8 KiB
C
#include <sys/stat.h>
|
|
#include <inttypes.h>
|
|
#include "kernel/calls.h"
|
|
#include "fs/proc.h"
|
|
#include "platform/platform.h"
|
|
|
|
static ssize_t proc_show_version(struct proc_entry *UNUSED(entry), char *buf) {
|
|
struct uname uts;
|
|
do_uname(&uts);
|
|
return sprintf(buf, "%s version %s %s\n", uts.system, uts.release, uts.version);
|
|
}
|
|
|
|
static ssize_t proc_show_stat(struct proc_entry *UNUSED(entry), char *buf) {
|
|
struct cpu_usage usage = get_cpu_usage();
|
|
size_t n = 0;
|
|
n += sprintf(buf + n, "cpu %llu %llu %llu %llu\n", usage.user_ticks, usage.nice_ticks, usage.system_ticks, usage.idle_ticks);
|
|
return n;
|
|
}
|
|
|
|
static void show_kb(char *buf, size_t *n, const char *name, uint64_t value) {
|
|
*n += sprintf(buf + *n, "%s%8"PRIu64" kB\n", name, value / 1000);
|
|
}
|
|
|
|
static ssize_t proc_show_meminfo(struct proc_entry *UNUSED(entry), char *buf) {
|
|
struct mem_usage usage = get_mem_usage();
|
|
size_t n = 0;
|
|
show_kb(buf, &n, "MemTotal: ", usage.total);
|
|
show_kb(buf, &n, "MemFree: ", usage.free);
|
|
show_kb(buf, &n, "MemShared: ", usage.free);
|
|
// a bunch of crap busybox top needs to see or else it gets stack garbage
|
|
show_kb(buf, &n, "Shmem: ", 0);
|
|
show_kb(buf, &n, "Buffers: ", 0);
|
|
show_kb(buf, &n, "Cached: ", 0);
|
|
show_kb(buf, &n, "SwapTotal: ", 0);
|
|
show_kb(buf, &n, "SwapFree: ", 0);
|
|
show_kb(buf, &n, "Dirty: ", 0);
|
|
show_kb(buf, &n, "Writeback: ", 0);
|
|
show_kb(buf, &n, "AnonPages: ", 0);
|
|
show_kb(buf, &n, "Mapped: ", 0);
|
|
show_kb(buf, &n, "Slab: ", 0);
|
|
return n;
|
|
}
|
|
|
|
static int proc_readlink_self(struct proc_entry *UNUSED(entry), char *buf) {
|
|
sprintf(buf, "%d/", current->pid);
|
|
return 0;
|
|
}
|
|
|
|
// in no particular order
|
|
struct proc_dir_entry proc_root_entries[] = {
|
|
{"version", .show = proc_show_version},
|
|
{"stat", .show = proc_show_stat},
|
|
{"meminfo", .show = proc_show_meminfo},
|
|
{"self", S_IFLNK, .readlink = proc_readlink_self},
|
|
};
|
|
#define PROC_ROOT_LEN sizeof(proc_root_entries)/sizeof(proc_root_entries[0])
|
|
|
|
static bool proc_root_readdir(struct proc_entry *UNUSED(entry), unsigned long *index, struct proc_entry *next_entry) {
|
|
if (*index < PROC_ROOT_LEN) {
|
|
*next_entry = (struct proc_entry) {&proc_root_entries[*index], 0, 0};
|
|
(*index)++;
|
|
return true;
|
|
}
|
|
|
|
pid_t_ pid = *index - PROC_ROOT_LEN;
|
|
if (pid <= MAX_PID) {
|
|
lock(&pids_lock);
|
|
do {
|
|
pid++;
|
|
} while (pid <= MAX_PID && pid_get_task(pid) == NULL);
|
|
unlock(&pids_lock);
|
|
if (pid > MAX_PID)
|
|
return false;
|
|
assert(pid_get_task(pid) != NULL);
|
|
*next_entry = (struct proc_entry) {&proc_pid, .pid = pid};
|
|
*index = pid + PROC_ROOT_LEN;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
struct proc_dir_entry proc_root = {NULL, S_IFDIR, .readdir = proc_root_readdir};
|