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📄 Makefile.am(2.18 KB)
📄 abd.h(4.25 KB)
📄 abd_impl.h(4.41 KB)
📄 aggsum.h(1.28 KB)
📄 arc.h(11.19 KB)
📄 arc_impl.h(33.15 KB)
📄 avl.h(9.16 KB)
📄 avl_impl.h(4.8 KB)
📄 bitops.h(3.2 KB)
📄 blkptr.h(914 B)
📄 bplist.h(1.6 KB)
📄 bpobj.h(3.21 KB)
📄 bptree.h(1.89 KB)
📄 bqueue.h(1.23 KB)
📄 btree.h(7.68 KB)
📁 crypto
📄 dataset_kstats.h(2.27 KB)
📄 dbuf.h(13.94 KB)
📄 ddt.h(7.96 KB)
📄 dmu.h(39.06 KB)
📄 dmu_impl.h(6.92 KB)
📄 dmu_objset.h(9.19 KB)
📄 dmu_recv.h(2.75 KB)
📄 dmu_redact.h(1.67 KB)
📄 dmu_send.h(2.54 KB)
📄 dmu_traverse.h(3.02 KB)
📄 dmu_tx.h(4.43 KB)
📄 dmu_zfetch.h(2.23 KB)
📄 dnode.h(22.41 KB)
📄 dsl_bookmark.h(5.05 KB)
📄 dsl_crypt.h(7.76 KB)
📄 dsl_dataset.h(18.62 KB)
📄 dsl_deadlist.h(4.21 KB)
📄 dsl_deleg.h(3.27 KB)
📄 dsl_destroy.h(2.19 KB)
📄 dsl_dir.h(7.67 KB)
📄 dsl_pool.h(6.23 KB)
📄 dsl_prop.h(4.38 KB)
📄 dsl_scan.h(7.11 KB)
📄 dsl_synctask.h(4.06 KB)
📄 dsl_userhold.h(1.84 KB)
📄 edonr.h(2.65 KB)
📄 efi_partition.h(16.28 KB)
📁 fm
📄 frame.h(935 B)
📁 fs
📄 hkdf.h(782 B)
📁 lua
📄 metaslab.h(5.48 KB)
📄 metaslab_impl.h(21.23 KB)
📄 mmp.h(2.37 KB)
📄 mntent.h(5.22 KB)
📄 mod.h(1.26 KB)
📄 multilist.h(3.27 KB)
📄 note.h(1.62 KB)
📄 nvpair.h(14.77 KB)
📄 nvpair_impl.h(2.23 KB)
📄 objlist.h(1.13 KB)
📄 pathname.h(2.12 KB)
📄 qat.h(5.86 KB)
📄 range_tree.h(9.73 KB)
📄 rrwlock.h(3.53 KB)
📄 sa.h(5.14 KB)
📄 sa_impl.h(8.29 KB)
📄 skein.h(6.69 KB)
📄 spa.h(46.07 KB)
📄 spa_boot.h(1.16 KB)
📄 spa_checkpoint.h(1.44 KB)
📄 spa_checksum.h(1.96 KB)
📄 spa_impl.h(18.25 KB)
📄 spa_log_spacemap.h(2.62 KB)
📄 space_map.h(8.7 KB)
📄 space_reftree.h(1.69 KB)
📁 sysevent
📄 sysevent.h(1.07 KB)
📄 txg.h(4.66 KB)
📄 txg_impl.h(4.77 KB)
📄 u8_textprep.h(3.59 KB)
📄 u8_textprep_data.h(1.41 MB)
📄 uberblock.h(1.36 KB)
📄 uberblock_impl.h(5.11 KB)
📄 uio_impl.h(1.58 KB)
📄 unique.h(1.56 KB)
📄 uuid.h(2.85 KB)
📄 vdev.h(8.18 KB)
📄 vdev_disk.h(1.65 KB)
📄 vdev_draid.h(3.43 KB)
📄 vdev_file.h(1.23 KB)
📄 vdev_impl.h(22.53 KB)
📄 vdev_indirect_births.h(2.31 KB)
📄 vdev_indirect_mapping.h(4.38 KB)
📄 vdev_initialize.h(1.39 KB)
📄 vdev_raidz.h(2.04 KB)
📄 vdev_raidz_impl.h(10.54 KB)
📄 vdev_rebuild.h(3.4 KB)
📄 vdev_removal.h(2.63 KB)
📄 vdev_trim.h(1.72 KB)
📄 xvattr.h(13.1 KB)
📄 zap.h(18.63 KB)
📄 zap_impl.h(6.79 KB)
📄 zap_leaf.h(7.84 KB)
📄 zcp.h(4.87 KB)
📄 zcp_global.h(742 B)
📄 zcp_iter.h(1.07 KB)
📄 zcp_prop.h(780 B)
📄 zcp_set.h(929 B)
📄 zfeature.h(2.42 KB)
📄 zfs_acl.h(8.08 KB)
📄 zfs_bootenv.h(1.41 KB)
📄 zfs_context.h(21.23 KB)
📄 zfs_debug.h(3.3 KB)
📄 zfs_delay.h(1.25 KB)
📄 zfs_file.h(2.06 KB)
📄 zfs_fuid.h(4.26 KB)
📄 zfs_ioctl.h(17.63 KB)
📄 zfs_ioctl_impl.h(3.1 KB)
📄 zfs_onexit.h(1.65 KB)
📄 zfs_project.h(2.35 KB)
📄 zfs_quota.h(1.57 KB)
📄 zfs_racct.h(1.12 KB)
📄 zfs_ratelimit.h(1.11 KB)
📄 zfs_refcount.h(4.15 KB)
📄 zfs_rlock.h(2.54 KB)
📄 zfs_sa.h(4.38 KB)
📄 zfs_stat.h(1.45 KB)
📄 zfs_sysfs.h(1.49 KB)
📄 zfs_vfsops.h(1.05 KB)
📄 zfs_vnops.h(2 KB)
📄 zfs_znode.h(10.93 KB)
📄 zil.h(18.27 KB)
📄 zil_impl.h(9.12 KB)
📄 zio.h(21.68 KB)
📄 zio_checksum.h(4.55 KB)
📄 zio_compress.h(5.91 KB)
📄 zio_crypt.h(5.21 KB)
📄 zio_impl.h(8.33 KB)
📄 zio_priority.h(1.2 KB)
📄 zrlock.h(1.7 KB)
📁 zstd
📄 zthr.h(1.23 KB)
📄 zvol.h(2.27 KB)
📄 zvol_impl.h(3.7 KB)

Editing: zcp.h

/*
 * CDDL HEADER START
 *
 * This file and its contents are supplied under the terms of the
 * Common Development and Distribution License ("CDDL"), version 1.0.
 * You may only use this file in accordance with the terms of version
 * 1.0 of the CDDL.
 *
 * A full copy of the text of the CDDL should have accompanied this
 * source.  A copy of the CDDL is also available via the Internet at
 * http://www.illumos.org/license/CDDL.
 *
 * CDDL HEADER END
 */

/*
 * Copyright (c) 2016, 2018 by Delphix. All rights reserved.
 */

#ifndef _SYS_ZCP_H
#define	_SYS_ZCP_H

#include <sys/dmu_tx.h>
#include <sys/dsl_pool.h>

#include <sys/lua/lua.h>
#include <sys/lua/lualib.h>
#include <sys/lua/lauxlib.h>

#ifdef	__cplusplus
extern "C" {
#endif

#define	ZCP_RUN_INFO_KEY "runinfo"

extern unsigned long zfs_lua_max_instrlimit;
extern unsigned long zfs_lua_max_memlimit;

int zcp_argerror(lua_State *, int, const char *, ...);

int zcp_eval(const char *, const char *, boolean_t, uint64_t, uint64_t,
    nvpair_t *, nvlist_t *);

int zcp_load_list_lib(lua_State *);

int zcp_load_synctask_lib(lua_State *, boolean_t);

typedef void (zcp_cleanup_t)(void *);
typedef struct zcp_cleanup_handler {
	zcp_cleanup_t *zch_cleanup_func;
	void *zch_cleanup_arg;
	list_node_t zch_node;
} zcp_cleanup_handler_t;

typedef struct zcp_alloc_arg {
	boolean_t	aa_must_succeed;
	int64_t		aa_alloc_remaining;
	int64_t		aa_alloc_limit;
} zcp_alloc_arg_t;

typedef struct zcp_run_info {
	dsl_pool_t	*zri_pool;

/*
	 * An estimate of the total amount of space consumed by all
	 * synctasks we have successfully performed so far in this
	 * channel program. Used to generate ENOSPC errors for syncfuncs.
	 */
	int		zri_space_used;

/*
	 * The credentials of the thread which originally invoked the channel
	 * program. Since channel programs are always invoked from the synctask
	 * thread they should always do permissions checks against this cred
	 * rather than the 'current' thread's.
	 */
	cred_t		*zri_cred;
	proc_t		*zri_proc;

/*
	 * The tx in which this channel program is running.
	 */
	dmu_tx_t	*zri_tx;

/*
	 * The maximum number of Lua instructions the channel program is allowed
	 * to execute. If it takes longer than this it will time out. A value
	 * of 0 indicates no instruction limit.
	 */
	uint64_t	zri_maxinstrs;

/*
	 * The number of Lua instructions the channel program has executed.
	 */
	uint64_t	zri_curinstrs;

/*
	 * Boolean indicating whether or not the channel program exited
	 * because it timed out.
	 */
	boolean_t	zri_timed_out;

/*
	 * Channel program was canceled by user
	 */
	boolean_t	zri_canceled;

/*
	 * Boolean indicating whether or not we are running in syncing
	 * context.
	 */
	boolean_t	zri_sync;

/*
	 * List of currently registered cleanup handlers, which will be
	 * triggered in the event of a fatal error.
	 */
	list_t		zri_cleanup_handlers;

/*
	 * The Lua state context of our channel program.
	 */
	lua_State	*zri_state;

/*
	 * Lua memory allocator arguments.
	 */
	zcp_alloc_arg_t	*zri_allocargs;

/*
	 * Contains output values from zcp script or error string.
	 */
	nvlist_t	*zri_outnvl;

/*
	 * The keys of this nvlist are datasets which may be zvols and may need
	 * to have device minor nodes created.  This information is passed from
	 * syncing context (where the zvol is created) to open context (where we
	 * create the minor nodes).
	 */
	nvlist_t	*zri_new_zvols;

/*
	 * The errno number returned to caller of zcp_eval().
	 */
	int		zri_result;
} zcp_run_info_t;

zcp_run_info_t *zcp_run_info(lua_State *);
zcp_cleanup_handler_t *zcp_register_cleanup(lua_State *, zcp_cleanup_t, void *);
void zcp_deregister_cleanup(lua_State *, zcp_cleanup_handler_t *);
void zcp_cleanup(lua_State *);

/*
 * Argument parsing routines for channel program callback functions.
 */
typedef struct zcp_arg {
	/*
	 * The name of this argument. For keyword arguments this is the name
	 * functions will use to set the argument. For positional arguments
	 * the name has no programmatic meaning, but will appear in error
	 * messages and help output.
	 */
	const char *za_name;

/*
	 * The Lua type this argument should have (e.g. LUA_TSTRING,
	 * LUA_TBOOLEAN) see the lua_type() function documentation for a
	 * complete list. Calling a function with an argument that does
	 * not match the expected type will result in the program terminating.
	 */
	const int za_lua_type;
} zcp_arg_t;

void zcp_parse_args(lua_State *, const char *, const zcp_arg_t *,
    const zcp_arg_t *);
int zcp_nvlist_to_lua(lua_State *, nvlist_t *, char *, int);
int zcp_dataset_hold_error(lua_State *, dsl_pool_t *, const char *, int);
struct dsl_dataset *zcp_dataset_hold(lua_State *, dsl_pool_t *,
    const char *, void *);

typedef int (zcp_lib_func_t)(lua_State *);
typedef struct zcp_lib_info {
	const char *name;
	zcp_lib_func_t *func;
	const zcp_arg_t pargs[4];
	const zcp_arg_t kwargs[2];
} zcp_lib_info_t;

#ifdef	__cplusplus
}
#endif

#endif	/* _SYS_ZCP_H */

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