File Manager

003 File Manager

Current Path: /usr/include/sys

📁 ..
📄 _atomic64e.h(2.91 KB)
📄 _atomic_subword.h(7.27 KB)
📄 _bitset.h(2.3 KB)
📄 _blockcount.h(1.97 KB)
📄 _bus_dma.h(2.15 KB)
📄 _callout.h(2.68 KB)
📄 _cpuset.h(1.76 KB)
📄 _cscan_atomic.h(18.1 KB)
📄 _cscan_bus.h(10.22 KB)
📄 _domainset.h(2.04 KB)
📄 _eventhandler.h(2.81 KB)
📄 _ffcounter.h(1.84 KB)
📄 _iovec.h(1.93 KB)
📄 _lock.h(2.98 KB)
📄 _lockmgr.h(1.82 KB)
📄 _mutex.h(2.63 KB)
📄 _null.h(1.7 KB)
📄 _pctrie.h(1.65 KB)
📄 _pthreadtypes.h(3.51 KB)
📄 _rangeset.h(1.86 KB)
📄 _rmlock.h(2.59 KB)
📄 _rwlock.h(2.39 KB)
📄 _semaphore.h(2.05 KB)
📄 _seqc.h(160 B)
📄 _sigset.h(2.46 KB)
📄 _smr.h(1.94 KB)
📄 _sockaddr_storage.h(2.37 KB)
📄 _stack.h(1.53 KB)
📄 _stdarg.h(2.15 KB)
📄 _stdint.h(2.6 KB)
📄 _sx.h(1.73 KB)
📄 _task.h(2.62 KB)
📄 _termios.h(7.64 KB)
📄 _timespec.h(2 KB)
📄 _timeval.h(1.88 KB)
📄 _types.h(5.66 KB)
📄 _ucontext.h(2.08 KB)
📄 _uio.h(1.99 KB)
📄 _umtx.h(2.5 KB)
📄 _unrhdr.h(1.92 KB)
📄 _winsize.h(2.14 KB)
📄 aac_ioctl.h(7.56 KB)
📄 abi_compat.h(2.42 KB)
📄 acct.h(4.95 KB)
📄 acl.h(14.62 KB)
📄 agpio.h(5.78 KB)
📄 aio.h(7.69 KB)
📄 alq.h(4.5 KB)
📄 apm.h(88 B)
📄 arb.h(28.88 KB)
📄 assym.h(2.7 KB)
📄 ata.h(45.35 KB)
📄 atomic_common.h(3.26 KB)
📄 auxv.h(1.58 KB)
📄 backlight.h(2.02 KB)
📄 bio.h(6.77 KB)
📄 bitset.h(8.53 KB)
📄 bitstring.h(12.16 KB)
📄 blist.h(3.74 KB)
📄 blockcount.h(3.03 KB)
📄 boot.h(1.8 KB)
📄 buf.h(20.73 KB)
📄 buf_ring.h(10.6 KB)
📄 bufobj.h(5.03 KB)
📄 bus.h(38.2 KB)
📄 bus_dma.h(13.68 KB)
📄 bus_dma_internal.h(2.42 KB)
📄 busdma_bufalloc.h(4.7 KB)
📄 callout.h(6.62 KB)
📄 caprights.h(4.17 KB)
📄 capsicum.h(17.54 KB)
📄 cdefs.h(27.79 KB)
📄 cdio.h(7.09 KB)
📄 cdrio.h(4.88 KB)
📄 cfictl.h(2.21 KB)
📄 chio.h(9.53 KB)
📄 ck.h(251 B)
📄 clock.h(8.07 KB)
📄 cnv.h(4.25 KB)
📄 compressor.h(2.05 KB)
📄 condvar.h(3.42 KB)
📄 conf.h(12.4 KB)
📄 cons.h(5.22 KB)
📄 consio.h(14.01 KB)
📄 copyright.h(1.97 KB)
📄 counter.h(3.02 KB)
📄 coverage.h(2.36 KB)
📄 cpu.h(7.02 KB)
📄 cpuctl.h(2.29 KB)
📄 cpuset.h(5.93 KB)
📄 csan.h(1.71 KB)
📄 ctf.h(14.4 KB)
📄 ctf_api.h(9.43 KB)
📄 ctype.h(2.81 KB)
📄 devctl.h(1.76 KB)
📄 devicestat.h(6.97 KB)
📄 devmap.h(4.04 KB)
📄 dirent.h(4.78 KB)
📁 disk
📄 disk.h(6.31 KB)
📄 disk_zone.h(6.52 KB)
📄 disklabel.h(4.39 KB)
📄 diskmbr.h(1.84 KB)
📄 dkstat.h(2.05 KB)
📄 dnv.h(3.39 KB)
📄 domain.h(3.64 KB)
📄 domainset.h(5.05 KB)
📄 dtrace.h(104.98 KB)
📄 dtrace_bsd.h(6.93 KB)
📄 dvdio.h(3.43 KB)
📄 efi.h(6.21 KB)
📄 efiio.h(2.06 KB)
📄 elf.h(1.6 KB)
📄 elf32.h(7.46 KB)
📄 elf64.h(7.79 KB)
📄 elf_common.h(59.51 KB)
📄 elf_generic.h(2.83 KB)
📄 endian.h(4.98 KB)
📄 epoch.h(4.01 KB)
📄 errno.h(8.29 KB)
📄 eui64.h(2.05 KB)
📄 event.h(12.61 KB)
📄 eventfd.h(1.86 KB)
📄 eventhandler.h(11.8 KB)
📄 eventvar.h(2.46 KB)
📄 exec.h(4.56 KB)
📄 extattr.h(4.08 KB)
📄 fail.h(13.1 KB)
📄 fbio.h(19.95 KB)
📄 fcntl.h(12.02 KB)
📄 fdcio.h(7.6 KB)
📄 file.h(14.06 KB)
📄 filedesc.h(12.13 KB)
📄 filio.h(3.67 KB)
📄 firmware.h(3.11 KB)
📄 fnv_hash.h(1.41 KB)
📄 font.h(3.85 KB)
📄 gmon.h(7.16 KB)
📄 gpio.h(9.85 KB)
📄 gpt.h(1.51 KB)
📄 gsb_crc32.h(998 B)
📄 gtaskqueue.h(4.21 KB)
📄 hash.h(3.55 KB)
📄 hhook.h(5.86 KB)
📄 iconv.h(8.22 KB)
📄 imgact.h(5.22 KB)
📄 imgact_aout.h(5.65 KB)
📄 imgact_binmisc.h(6.95 KB)
📄 imgact_elf.h(4.13 KB)
📄 interrupt.h(8.07 KB)
📄 intr.h(5.36 KB)
📄 ioccom.h(3.82 KB)
📄 ioctl.h(2.24 KB)
📄 ioctl_compat.h(6.42 KB)
📄 iov.h(11.67 KB)
📄 iov_schema.h(2.33 KB)
📄 ipc.h(4.93 KB)
📄 ipmi.h(5.4 KB)
📄 jail.h(14.98 KB)
📄 joystick.h(2.12 KB)
📄 kbio.h(7.81 KB)
📄 kcov.h(2.36 KB)
📄 kdb.h(5.04 KB)
📄 kenv.h(2.02 KB)
📄 kern_prefetch.h(1.67 KB)
📄 kernel.h(16.18 KB)
📄 kerneldump.h(4.85 KB)
📄 khelp.h(3.08 KB)
📄 kobj.h(6.92 KB)
📄 kpilite.h(2.01 KB)
📄 ksem.h(2.34 KB)
📄 kthread.h(3.04 KB)
📄 ktls.h(6.52 KB)
📄 ktr.h(10.92 KB)
📄 ktr_class.h(3.8 KB)
📄 ktrace.h(8.13 KB)
📄 libkern.h(7.74 KB)
📄 limits.h(3.69 KB)
📄 link_aout.h(10.2 KB)
📄 link_elf.h(4.06 KB)
📄 linker.h(11.88 KB)
📄 linker_set.h(3.85 KB)
📄 lock.h(12.24 KB)
📄 lock_profile.h(2.6 KB)
📄 lockf.h(5.55 KB)
📄 lockmgr.h(7 KB)
📄 lockstat.h(5.13 KB)
📄 loginclass.h(2.08 KB)
📄 mac.h(3.96 KB)
📄 malloc.h(11.76 KB)
📄 mbuf.h(50.74 KB)
📄 mchain.h(4.21 KB)
📄 md4.h(1.63 KB)
📄 md5.h(1.81 KB)
📄 mdioctl.h(3.73 KB)
📄 memdesc.h(3.79 KB)
📄 memrange.h(2.36 KB)
📄 mman.h(10.41 KB)
📄 module.h(8.77 KB)
📄 module_khelp.h(3.45 KB)
📄 mount.h(42.05 KB)
📄 mouse.h(12.69 KB)
📄 mpt_ioctl.h(4.27 KB)
📄 mqueue.h(1.86 KB)
📄 msg.h(4.78 KB)
📄 msgbuf.h(3.49 KB)
📄 mtio.h(11.94 KB)
📄 mutex.h(19.18 KB)
📄 namei.h(11.27 KB)
📄 nlist_aout.h(4.23 KB)
📄 nv.h(10.62 KB)
📄 nvpair.h(14.77 KB)
📄 osd.h(4.02 KB)
📄 param.h(12.23 KB)
📄 pciio.h(5.67 KB)
📄 pcpu.h(9.79 KB)
📄 pctrie.h(5.19 KB)
📄 physmem.h(2.92 KB)
📄 pidctrl.h(5.44 KB)
📄 pipe.h(4.63 KB)
📄 pmc.h(37.29 KB)
📄 pmckern.h(8.01 KB)
📄 pmclog.h(9.23 KB)
📄 poll.h(4.03 KB)
📄 posix4.h(3.71 KB)
📄 power.h(2.34 KB)
📄 priority.h(4.39 KB)
📄 priv.h(19.73 KB)
📄 prng.h(354 B)
📄 proc.h(50.73 KB)
📄 procctl.h(4.89 KB)
📄 procdesc.h(4.46 KB)
📄 procfs.h(4.2 KB)
📄 protosw.h(14.56 KB)
📄 ptio.h(1.57 KB)
📄 ptrace.h(8.61 KB)
📄 qmath.h(22.07 KB)
📄 queue.h(28.61 KB)
📄 racct.h(7.48 KB)
📄 random.h(5.41 KB)
📄 rangelock.h(3.86 KB)
📄 rangeset.h(2.96 KB)
📄 rctl.h(5.91 KB)
📄 reboot.h(3.41 KB)
📄 refcount.h(5.72 KB)
📄 regression.h(1.62 KB)
📄 resource.h(5.32 KB)
📄 resourcevar.h(6.33 KB)
📄 rman.h(6.41 KB)
📄 rmlock.h(5.56 KB)
📄 rtprio.h(3.08 KB)
📄 runq.h(2.54 KB)
📄 rwlock.h(10.61 KB)
📄 sbuf.h(4.68 KB)
📄 sched.h(9.06 KB)
📄 sdt.h(17.89 KB)
📄 select.h(3.5 KB)
📄 selinfo.h(2.39 KB)
📄 sem.h(4.31 KB)
📄 sema.h(2.61 KB)
📄 seqc.h(3.26 KB)
📄 serial.h(3.49 KB)
📄 sf_buf.h(5.87 KB)
📄 sglist.h(3.89 KB)
📄 shm.h(5.69 KB)
📄 sigio.h(2.83 KB)
📄 signal.h(15.83 KB)
📄 signalvar.h(12.95 KB)
📄 sleepqueue.h(5.61 KB)
📄 slicer.h(2.19 KB)
📄 smp.h(8.88 KB)
📄 smr.h(7.64 KB)
📄 smr_types.h(4.87 KB)
📄 snoop.h(1014 B)
📄 sockbuf.h(9.9 KB)
📄 socket.h(23.43 KB)
📄 socketvar.h(18.75 KB)
📄 sockio.h(7.97 KB)
📄 sockopt.h(2.98 KB)
📄 soundcard.h(69.38 KB)
📄 specialfd.h(1.56 KB)
📄 spigenio.h(2.28 KB)
📄 stack.h(2.65 KB)
📄 stat.h(13.44 KB)
📄 stats.h(34.73 KB)
📄 statvfs.h(3.08 KB)
📄 stdatomic.h(13.94 KB)
📄 stddef.h(1.7 KB)
📄 stdint.h(2.63 KB)
📄 sx.h(11.04 KB)
📄 syscall.h(13.99 KB)
📄 syscallsubr.h(16.94 KB)
📄 sysctl.h(47.96 KB)
📄 sysent.h(10.82 KB)
📄 syslimits.h(3.14 KB)
📄 syslog.h(7.25 KB)
📄 sysproto.h(153.38 KB)
📄 systm.h(21.97 KB)
📄 taskqueue.h(7.65 KB)
📄 terminal.h(8.25 KB)
📄 termios.h(151 B)
📄 thr.h(2.87 KB)
📄 tiio.h(12.62 KB)
📄 tim_filter.h(4.61 KB)
📄 time.h(16.87 KB)
📄 timeb.h(2.59 KB)
📄 timeet.h(3.65 KB)
📄 timeffc.h(11.94 KB)
📄 timepps.h(6.48 KB)
📄 timers.h(3.56 KB)
📄 times.h(2.46 KB)
📄 timespec.h(2.4 KB)
📄 timetc.h(3.16 KB)
📄 timex.h(6.61 KB)
📄 tree.h(27.93 KB)
📄 tslog.h(2.3 KB)
📄 tty.h(8.98 KB)
📄 ttycom.h(6.48 KB)
📄 ttydefaults.h(3.92 KB)
📄 ttydevsw.h(5.28 KB)
📄 ttydisc.h(2.93 KB)
📄 ttyhook.h(3.98 KB)
📄 ttyqueue.h(5.26 KB)
📄 turnstile.h(4.83 KB)
📄 types.h(11.64 KB)
📄 ucontext.h(2.91 KB)
📄 ucred.h(5.4 KB)
📄 uio.h(4.15 KB)
📄 umtx.h(5.94 KB)
📄 un.h(2.96 KB)
📄 unistd.h(7.34 KB)
📄 unpcb.h(6.77 KB)
📄 user.h(21.58 KB)
📄 utsname.h(2.47 KB)
📄 uuid.h(3.17 KB)
📄 vdso.h(4.26 KB)
📄 vmem.h(4.91 KB)
📄 vmmeter.h(7.72 KB)
📄 vnode.h(40.87 KB)
📄 vtoc.h(89 B)
📄 wait.h(6.11 KB)
📄 watchdog.h(4.22 KB)

Editing: fail.h

/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 2009-2019 Dell EMC Isilon http://www.isilon.com/
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */
/**
 * @file
 *
 * Main header for failpoint facility.
 */
#ifndef _SYS_FAIL_H_
#define _SYS_FAIL_H_

#include <sys/param.h>
#include <sys/cdefs.h>
#include <sys/linker_set.h>
#include <sys/queue.h>
#include <sys/sysctl.h>
#include <sys/condvar.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/systm.h>

/**
 * Failpoint return codes, used internally.
 * @ingroup failpoint_private
 */
enum fail_point_return_code {
	FAIL_POINT_RC_CONTINUE = 0,	/**< Continue with normal execution */
	FAIL_POINT_RC_RETURN,		/**< FP evaluated to 'return' */
	FAIL_POINT_RC_QUEUED,		/**< sleep_fn will be called */
};

struct fail_point_entry;
struct fail_point_setting;

/**
 * Internal failpoint structure, tracking all the current details of the
 * failpoint.  This structure is the core component shared between the
 * failure-injection code and the user-interface.
 * @ingroup failpoint_private
 */
struct fail_point {
	const char *fp_name;		/* name of fail point */
	const char *fp_location;	/* file:line of fail point */
	volatile int fp_ref_cnt;	/**
	                             * protects fp_setting: while holding
	                             * a ref, fp_setting points to an
	                             * unfreed fail_point_setting
	                             */
	struct fail_point_setting * volatile fp_setting;
	int fp_flags;

/**< Function to call before sleep or pause */
	void (*fp_pre_sleep_fn)(void *);
	/**< Arg for fp_pre_sleep_fn */
	void *fp_pre_sleep_arg;

/**< Function to call after waking from sleep or pause */
	void (*fp_post_sleep_fn)(void *);
	/**< Arg for fp_post_sleep_fn */
	void *fp_post_sleep_arg;

struct callout *fp_callout;
};

#define	FAIL_POINT_DYNAMIC_NAME	0x01	/**< Must free name on destroy */
/**< Use timeout path for sleep instead of msleep */
#define FAIL_POINT_USE_TIMEOUT_PATH 0x02
/**< If fail point is set to sleep, replace the sleep call with delay */
#define FAIL_POINT_NONSLEEPABLE 0x04

#define FAIL_POINT_CV_DESC "fp cv no iterators"
#define FAIL_POINT_IS_OFF(fp) (__predict_true((fp)->fp_setting == NULL) || \
        __predict_true(fail_point_is_off(fp)))

__BEGIN_DECLS

/* Private failpoint eval function -- use fail_point_eval() instead. */
enum fail_point_return_code fail_point_eval_nontrivial(struct fail_point *,
        int *ret);

/**
 * @addtogroup failpoint
 * @{
 */
/*
 * Initialize a fail-point.  The name is formed in printf-like fashion
 * from "fmt" and the subsequent arguments.
 * Pair with fail_point_destroy().
 */
void fail_point_init(struct fail_point *, const char *fmt, ...)
    __printflike(2, 3);

/* Return true iff this fail point is set to off, false otherwise */
bool fail_point_is_off(struct fail_point *fp);

/**
 * Set the pre-sleep function for a fail point
 * If fp_post_sleep_fn is specified, then FAIL_POINT_SLEEP will result in a
 * (*fp->fp_pre_sleep_fn)(fp->fp_pre_sleep_arg) call by the thread.
 */
static inline void
fail_point_sleep_set_pre_func(struct fail_point *fp, void (*sleep_fn)(void *))
{
	fp->fp_pre_sleep_fn = sleep_fn;
}

static inline void
fail_point_sleep_set_pre_arg(struct fail_point *fp, void *sleep_arg)
{
	fp->fp_pre_sleep_arg = sleep_arg;
}

/**
 * Set the post-sleep function.  This will be passed to timeout if we take
 * the timeout path. This must be set if you sleep using the timeout path.
 */
static inline void
fail_point_sleep_set_post_func(struct fail_point *fp, void (*sleep_fn)(void *))
{
	fp->fp_post_sleep_fn = sleep_fn;
}

static inline void
fail_point_sleep_set_post_arg(struct fail_point *fp, void *sleep_arg)
{
	fp->fp_post_sleep_arg = sleep_arg;
}

void fail_point_alloc_callout(struct fail_point *);

/**
 * If the FAIL_POINT_USE_TIMEOUT flag is set on a failpoint, then
 * FAIL_POINT_SLEEP will result in a call to callout_reset instead of
 * msleep. Note that if you sleep while this flag is set, you must
 * set fp_post_sleep_fn or an error will occur upon waking.
 */
static inline void
fail_point_use_timeout_path(struct fail_point *fp, bool use_timeout,
        void (*post_sleep_fn)(void *))
{
	KASSERT(!use_timeout || post_sleep_fn != NULL ||
	        (post_sleep_fn == NULL && fp->fp_post_sleep_fn != NULL),
	        ("Setting fp to use timeout, but not setting post_sleep_fn\n"));

if (use_timeout) {
		fail_point_alloc_callout(fp);
		fp->fp_flags |= FAIL_POINT_USE_TIMEOUT_PATH;
	} else
		fp->fp_flags &= ~FAIL_POINT_USE_TIMEOUT_PATH;

if (post_sleep_fn != NULL)
		fp->fp_post_sleep_fn = post_sleep_fn;
}

/**
 * Free the resources used by a fail-point.  Pair with fail_point_init().
 */
void fail_point_destroy(struct fail_point *);

/**
 * Evaluate a failpoint.
 */
static inline enum fail_point_return_code
fail_point_eval(struct fail_point *fp, int *ret)
{
	if (__predict_true(fp->fp_setting == NULL))
		return (FAIL_POINT_RC_CONTINUE);
	return (fail_point_eval_nontrivial(fp, ret));
}

__END_DECLS

/* Declare a fail_point and its sysctl in a function. */
#define KFAIL_POINT_DECLARE(name) \
    extern struct fail_point _FAIL_POINT_NAME(name)
#define _FAIL_POINT_NAME(name) _fail_point_##name
#define _FAIL_POINT_LOCATION() "(" __FILE__ ":" __XSTRING(__LINE__) ")"
#define KFAIL_POINT_DEFINE(parent, name, flags) \
	struct fail_point _FAIL_POINT_NAME(name) = { \
	        .fp_name = #name, \
	        .fp_location = _FAIL_POINT_LOCATION(), \
	        .fp_ref_cnt = 0, \
	        .fp_setting = NULL, \
	        .fp_flags = (flags), \
	        .fp_pre_sleep_fn = NULL, \
	        .fp_pre_sleep_arg = NULL, \
	        .fp_post_sleep_fn = NULL, \
	        .fp_post_sleep_arg = NULL, \
	}; \
	SYSCTL_OID(parent, OID_AUTO, name, \
	        CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_MPSAFE, \
	        &_FAIL_POINT_NAME(name), 0, fail_point_sysctl, \
	        "A", ""); \
	SYSCTL_OID(parent, OID_AUTO, status_##name, \
	        CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, \
	        &_FAIL_POINT_NAME(name), 0, \
	        fail_point_sysctl_status, "A", "");

#define _FAIL_POINT_INIT(parent, name, flags) \
	static KFAIL_POINT_DEFINE(parent, name, flags)
#define _FAIL_POINT_EVAL(name, cond, code...) \
	int RETURN_VALUE; \
 \
	if (__predict_false(cond && \
	        fail_point_eval(&_FAIL_POINT_NAME(name), &RETURN_VALUE))) { \
 \
		code; \
 \
	}
#define KFAIL_POINT_EVAL(name, code...) \
	_FAIL_POINT_EVAL(name, true, code)

/**
 * Instantiate a failpoint which returns "RETURN_VALUE" from the function
 * when triggered.
 * @param parent  The parent sysctl under which to locate the fp's sysctl
 * @param name    The name of the failpoint in the sysctl tree (and printouts)
 * @return        Instantly returns the RETURN_VALUE specified in the
 *                failpoint, if triggered.
 */
#define KFAIL_POINT_RETURN(parent, name) \
	KFAIL_POINT_CODE(parent, name, return RETURN_VALUE)

/**
 * Instantiate a failpoint which returns (void) from the function when
 * triggered.
 * @param parent  The parent sysctl under which to locate the sysctl
 * @param name    The name of the failpoint in the sysctl tree (and printouts)
 * @return        Instantly returns void, if triggered in the failpoint.
 */
#define KFAIL_POINT_RETURN_VOID(parent, name) \
	KFAIL_POINT_CODE(parent, name, return)

/**
 * Instantiate a failpoint which sets an error when triggered.
 * @param parent     The parent sysctl under which to locate the sysctl
 * @param name       The name of the failpoint in the sysctl tree (and
 *                   printouts)
 * @param error_var  A variable to set to the failpoint's specified
 *                   return-value when triggered
 */
#define KFAIL_POINT_ERROR(parent, name, error_var) \
	KFAIL_POINT_CODE(parent, name, (error_var) = RETURN_VALUE)

/**
 * Instantiate a failpoint which sets an error and then goes to a
 * specified label in the function when triggered.
 * @param parent     The parent sysctl under which to locate the sysctl
 * @param name       The name of the failpoint in the sysctl tree (and
 *                   printouts)
 * @param error_var  A variable to set to the failpoint's specified
 *                   return-value when triggered
 * @param label      The location to goto when triggered.
 */
#define KFAIL_POINT_GOTO(parent, name, error_var, label) \
	KFAIL_POINT_CODE(parent, name, (error_var) = RETURN_VALUE; goto label)

/**
 * Instantiate a failpoint which sets its pre- and post-sleep callback
 * mechanisms.
 * @param parent     The parent sysctl under which to locate the sysctl
 * @param name       The name of the failpoint in the sysctl tree (and
 *                   printouts)
 * @param pre_func   Function pointer to the pre-sleep function, which will be
 *                   called directly before going to sleep.
 * @param pre_arg    Argument to the pre-sleep function
 * @param post_func  Function pointer to the pot-sleep function, which will be
 *                   called directly before going to sleep.
 * @param post_arg   Argument to the post-sleep function
 */
#define KFAIL_POINT_SLEEP_CALLBACKS(parent, name, pre_func, pre_arg, \
        post_func, post_arg) \
	KFAIL_POINT_CODE_SLEEP_CALLBACKS(parent, name, pre_func, \
	    pre_arg, post_func, post_arg, return RETURN_VALUE)

/**
 * Instantiate a failpoint which runs arbitrary code when triggered, and sets
 * its pre- and post-sleep callback mechanisms
 * @param parent     The parent sysctl under which to locate the sysctl
 * @param name       The name of the failpoint in the sysctl tree (and
 *                   printouts)
 * @param pre_func   Function pointer to the pre-sleep function, which will be
 *                   called directly before going to sleep.
 * @param pre_arg    Argument to the pre-sleep function
 * @param post_func  Function pointer to the pot-sleep function, which will be
 *                   called directly before going to sleep.
 * @param post_arg   Argument to the post-sleep function
 * @param code       The arbitrary code to run when triggered.  Can reference
 *                   "RETURN_VALUE" if desired to extract the specified
 *                   user return-value when triggered.  Note that this is
 *                   implemented with a do-while loop so be careful of
 *                   break and continue statements.
 */
#define KFAIL_POINT_CODE_SLEEP_CALLBACKS(parent, name, pre_func, pre_arg, \
        post_func, post_arg, code...) \
	do { \
		_FAIL_POINT_INIT(parent, name) \
		_FAIL_POINT_NAME(name).fp_pre_sleep_fn = pre_func; \
		_FAIL_POINT_NAME(name).fp_pre_sleep_arg = pre_arg; \
		_FAIL_POINT_NAME(name).fp_post_sleep_fn = post_func; \
		_FAIL_POINT_NAME(name).fp_post_sleep_arg = post_arg; \
		_FAIL_POINT_EVAL(name, true, code) \
	} while (0)

/**
 * Instantiate a failpoint which runs arbitrary code when triggered.
 * @param parent     The parent sysctl under which to locate the sysctl
 * @param name       The name of the failpoint in the sysctl tree
 *                   (and printouts)
 * @param code       The arbitrary code to run when triggered.  Can reference
 *                   "RETURN_VALUE" if desired to extract the specified
 *                   user return-value when triggered.  Note that this is
 *                   implemented with a do-while loop so be careful of
 *                   break and continue statements.
 */
#define KFAIL_POINT_CODE(parent, name, code...) \
	do { \
		_FAIL_POINT_INIT(parent, name, 0) \
		_FAIL_POINT_EVAL(name, true, code) \
	} while (0)

#define KFAIL_POINT_CODE_FLAGS(parent, name, flags, code...) \
	do { \
		_FAIL_POINT_INIT(parent, name, flags) \
		_FAIL_POINT_EVAL(name, true, code) \
	} while (0)

#define KFAIL_POINT_CODE_COND(parent, name, cond, flags, code...) \
	do { \
		_FAIL_POINT_INIT(parent, name, flags) \
		_FAIL_POINT_EVAL(name, cond, code) \
	} while (0)

/**
 * @}
 * (end group failpoint)
 */

#ifdef _KERNEL
int fail_point_sysctl(SYSCTL_HANDLER_ARGS);
int fail_point_sysctl_status(SYSCTL_HANDLER_ARGS);

/* The fail point sysctl tree. */
SYSCTL_DECL(_debug_fail_point);
#define	DEBUG_FP	_debug_fail_point
#endif

#endif /* _SYS_FAIL_H_ */

003 File Manager

Editing: fail.h

Upload File

Create Folder