#include <sys/cdefs.h>
#include "opt_stack.h"
#include <sys/ctype.h>
#include <sys/errno.h>
#include <sys/fail.h>
#include <sys/kernel.h>
#include <sys/libkern.h>
#include <sys/limits.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/sbuf.h>
#include <sys/sleepqueue.h>
#include <sys/sx.h>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <machine/atomic.h>
#include <machine/stdarg.h>

Include dependency graph for kern_fail.c:

Data Structures
struct	fail_point_entry

struct	fail_point_setting

Macros
#define	fp_free(ptr) free(ptr, M_FAIL_POINT)

#define	fp_malloc(size, flags) malloc((size), M_FAIL_POINT, (flags))

#define	fs_free(ptr) fp_free(ptr)

#define	fs_malloc()

#define	FP_SLEEP_CHANNEL(fp) (void*)(fp)

#define	FP_PAUSE_CHANNEL(fp) __DEVOLATILE(void*, &fp->fp_setting)

#define	FP_MAX_ENTRY_COUNT 20

#define	FP_TYPE_NM_LEN(s) { s, sizeof(s) - 1 }

#define	FE_COUNT_UNTRACKED (INT_MIN)

#define	MAX_FAIL_POINT_BUF 1023

#define	PID_STRING "[pid "

Enumerations
enum	fail_point_t { FAIL_POINT_OFF , FAIL_POINT_PANIC , FAIL_POINT_RETURN , FAIL_POINT_BREAK , FAIL_POINT_PRINT , FAIL_POINT_SLEEP , FAIL_POINT_PAUSE , FAIL_POINT_YIELD , FAIL_POINT_DELAY , FAIL_POINT_NUMTYPES , FAIL_POINT_INVALID = -1 }

enum	{ PROB_MAX = 1000000 , PROB_DIGITS = 6 }

Functions
	__FBSDID ("$FreeBSD$")

static	MALLOC_DEFINE (M_FAIL_POINT, "Fail Points", "fail points system")

int	fail_sysctl_drain_func (void , const char , int)

	TAILQ_HEAD (fail_point_entry_queue, fail_point_entry)

	STAILQ_HEAD (fail_point_setting_garbage, fail_point_setting)

	MTX_SYSINIT (mtx_garbage_list, &mtx_garbage_list, "fail point garbage mtx", MTX_SPIN)

	SX_SYSINIT (sx_fp_set, &sx_fp_set, "fail point set sx")

static struct fail_point_setting *	fail_point_setting_get_ref (struct fail_point *fp)

static void	fail_point_setting_release_ref (struct fail_point *fp)

static struct fail_point_setting *	fail_point_setting_new (struct fail_point *)

static void	fail_point_setting_destroy (struct fail_point_setting *fp_setting)

static struct fail_point_entry *	fail_point_entry_new (struct fail_point_setting *)

static void	fail_point_entry_destroy (struct fail_point_entry *fp_entry)

static void	fail_point_setting_garbage_append (struct fail_point_setting *fp_setting)

static struct fail_point_setting *	fail_point_swap_settings (struct fail_point fp, struct fail_point_setting fp_setting_new)

static void	fail_point_garbage_collect (void)

static void	fail_point_eval_swap_out (struct fail_point fp, struct fail_point_setting fp_setting)

bool	fail_point_is_off (struct fail_point *fp)

static void	fail_point_drain (struct fail_point *fp, int expected_ref)

static void	fail_point_pause (struct fail_point fp, enum fail_point_return_code pret, struct mtx *mtx_sleep)

static void	fail_point_sleep (struct fail_point fp, int msecs, enum fail_point_return_code pret)

static char *	parse_fail_point (struct fail_point_setting , char )

static char *	parse_term (struct fail_point_setting , char )

static char *	parse_number (int out_units, int out_decimal, char *)

static char *	parse_type (struct fail_point_entry , char )

void	fail_point_init (struct fail_point fp, const char fmt,...)

void	fail_point_alloc_callout (struct fail_point *fp)

void	fail_point_destroy (struct fail_point *fp)

enum fail_point_return_code	fail_point_eval_nontrivial (struct fail_point fp, int return_value)

static void	fail_point_get (struct fail_point fp, struct sbuf sb, bool verbose)

static int	fail_point_set (struct fail_point fp, char buf)

int	fail_point_sysctl (SYSCTL_HANDLER_ARGS)

int	fail_point_sysctl_status (SYSCTL_HANDLER_ARGS)

	SYSCTL_NODE (_debug, OID_AUTO, fail_point, CTLFLAG_RW\|CTLFLAG_MPSAFE, 0, "fail points")

static int	sysctl_test_fail_point (SYSCTL_HANDLER_ARGS)

	SYSCTL_OID (_debug_fail_point, OID_AUTO, test_trigger_fail_point, CTLTYPE_STRING\|CTLFLAG_RD\|CTLFLAG_NEEDGIANT, NULL, 0, sysctl_test_fail_point, "A", "Trigger test fail points")

Variables
static struct fail_point_setting_garbage	fp_setting_garbage

static struct mtx	mtx_garbage_list

static struct sx	sx_fp_set

struct {
const char * name

int nmlen

}	fail_type_strings []

Detailed Description

fail(9) Facility.

Definition in file kern_fail.c.

Macro Definition Documentation

◆ FP_TYPE_NM_LEN

#define FP_TYPE_NM_LEN ( s ) { s, sizeof(s) - 1 }

◆ PID_STRING

#define PID_STRING "[pid "

Data Structures

Macros

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ FP_TYPE_NM_LEN

◆ PID_STRING