statistics.c File Reference

#include <kernel/drivers/statistics.h>
#include <kernel/cpu/cpu.h>
#include <kernel/cpu/smp.h>
#include <kernel/fs/file.h>
#include <kernel/fs/sysfs.h>
#include <kernel/fs/vfs.h>
#include <kernel/log/panic.h>
#include <kernel/mem/pmm.h>
#include <kernel/sched/sched.h>
#include <kernel/sched/timer.h>
#include <kernel/sync/lock.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/io.h>
#include <sys/math.h>

Go to the source code of this file.

Functions
void	statistics_cpu_ctx_init (statistics_cpu_ctx_t *ctx)
	Initializes a per-CPU statistics context.
static uint64_t	statistics_cpu_read (file_t *file, void *buffer, uint64_t count, uint64_t *offset)
static uint64_t	statistics_mem_read (file_t *file, void *buffer, uint64_t count, uint64_t *offset)
void	statistics_init (void)
	Initializes the statistics driver.
void	statistics_interrupt_begin (interrupt_frame_t *frame, cpu_t *self)
	Called at the beginning of an interrupt.
void	statistics_interrupt_end (interrupt_frame_t *frame, cpu_t *self)
	Called at the end of an interrupt.

Variables
static dentry_t *	statDir = NULL
static dentry_t *	cpuFile = NULL
static dentry_t *	memFile = NULL
static file_ops_t	cpuOps
static file_ops_t	memOps

Function Documentation

statistics_cpu_read()

static uint64_t statistics_cpu_read ( file_t *  file, void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 34 of file statistics.c.

References buffer, BUFFER_READ, count, ERR, file, free(), cpu_t::id, LOCK_SCOPE, malloc(), MAX_PATH, NULL, sched_is_idle(), smp_cpu(), smp_cpu_amount(), sprintf(), cpu_t::stat, stat(), strcpy(), strlen(), and timer_uptime().

statistics_mem_read()

static uint64_t statistics_mem_read ( file_t *  file, void *  buffer, uint64_t  count, uint64_t *  offset  )

static

Definition at line 77 of file statistics.c.

References buffer, BUFFER_READ, count, ERR, file, free(), malloc(), MAX_PATH, NULL, PAGE_SIZE, pmm_free_amount(), pmm_reserved_amount(), pmm_total_amount(), sprintf(), and strlen().

Variable Documentation

cpuFile

dentry_t* cpuFile = NULL

static

Definition at line 21 of file statistics.c.

Referenced by statistics_init().

cpuOps

file_ops_t cpuOps

static

Initial value:

= {
    .read = statistics_cpu_read,
}

Definition at line 73 of file statistics.c.

Referenced by statistics_init().

memFile

dentry_t* memFile = NULL

static

Definition at line 22 of file statistics.c.

Referenced by statistics_init().

memOps

file_ops_t memOps

static

Initial value:

= {
    .read = statistics_mem_read,
}

Definition at line 96 of file statistics.c.

Referenced by statistics_init().

statDir

dentry_t* statDir = NULL

static

Definition at line 20 of file statistics.c.

Referenced by statistics_init().