1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5436b2950Sperrin * Common Development and Distribution License (the "License"). 6436b2950Sperrin * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 22893a6d32Sahrens * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #ifndef _SYS_ZIL_H 27fa9e4066Sahrens #define _SYS_ZIL_H 28fa9e4066Sahrens 29fa9e4066Sahrens #pragma ident "%Z%%M% %I% %E% SMI" 30fa9e4066Sahrens 31fa9e4066Sahrens #include <sys/types.h> 32fa9e4066Sahrens #include <sys/spa.h> 33fa9e4066Sahrens #include <sys/zio.h> 34fa9e4066Sahrens #include <sys/dmu.h> 35fa9e4066Sahrens 36fa9e4066Sahrens #ifdef __cplusplus 37fa9e4066Sahrens extern "C" { 38fa9e4066Sahrens #endif 39fa9e4066Sahrens 40fa9e4066Sahrens /* 41fa9e4066Sahrens * Intent log format: 42fa9e4066Sahrens * 43fa9e4066Sahrens * Each objset has its own intent log. The log header (zil_header_t) 44fa9e4066Sahrens * for objset N's intent log is kept in the Nth object of the SPA's 45fa9e4066Sahrens * intent_log objset. The log header points to a chain of log blocks, 46fa9e4066Sahrens * each of which contains log records (i.e., transactions) followed by 47fa9e4066Sahrens * a log block trailer (zil_trailer_t). The format of a log record 48fa9e4066Sahrens * depends on the record (or transaction) type, but all records begin 49fa9e4066Sahrens * with a common structure that defines the type, length, and txg. 50fa9e4066Sahrens */ 51fa9e4066Sahrens 52fa9e4066Sahrens /* 53fa9e4066Sahrens * Intent log header - this on disk structure holds fields to manage 54fa9e4066Sahrens * the log. All fields are 64 bit to easily handle cross architectures. 55fa9e4066Sahrens */ 56fa9e4066Sahrens typedef struct zil_header { 57fa9e4066Sahrens uint64_t zh_claim_txg; /* txg in which log blocks were claimed */ 58fa9e4066Sahrens uint64_t zh_replay_seq; /* highest replayed sequence number */ 59fa9e4066Sahrens blkptr_t zh_log; /* log chain */ 60d80c45e0Sbonwick uint64_t zh_claim_seq; /* highest claimed sequence number */ 61d80c45e0Sbonwick uint64_t zh_pad[5]; 62fa9e4066Sahrens } zil_header_t; 63fa9e4066Sahrens 64fa9e4066Sahrens /* 65fa9e4066Sahrens * Log block trailer - structure at the end of the header and each log block 66fa9e4066Sahrens * 67fa9e4066Sahrens * The zit_bt contains a zbt_cksum which for the intent log is 68fa9e4066Sahrens * the sequence number of this log block. A seq of 0 is invalid. 69fa9e4066Sahrens * The zbt_cksum is checked by the SPA against the sequence 70fa9e4066Sahrens * number passed in the blk_cksum field of the blkptr_t 71fa9e4066Sahrens */ 72fa9e4066Sahrens typedef struct zil_trailer { 73fa9e4066Sahrens uint64_t zit_pad; 74fa9e4066Sahrens blkptr_t zit_next_blk; /* next block in chain */ 75fa9e4066Sahrens uint64_t zit_nused; /* bytes in log block used */ 76fa9e4066Sahrens zio_block_tail_t zit_bt; /* block trailer */ 77fa9e4066Sahrens } zil_trailer_t; 78fa9e4066Sahrens 79b4d654b0Sperrin #define ZIL_MIN_BLKSZ 4096ULL 80fa9e4066Sahrens #define ZIL_MAX_BLKSZ SPA_MAXBLOCKSIZE 81fa9e4066Sahrens #define ZIL_BLK_DATA_SZ(lwb) ((lwb)->lwb_sz - sizeof (zil_trailer_t)) 82fa9e4066Sahrens 83d80c45e0Sbonwick /* 84d80c45e0Sbonwick * The words of a log block checksum. 85d80c45e0Sbonwick */ 86d80c45e0Sbonwick #define ZIL_ZC_GUID_0 0 87d80c45e0Sbonwick #define ZIL_ZC_GUID_1 1 88d80c45e0Sbonwick #define ZIL_ZC_OBJSET 2 89d80c45e0Sbonwick #define ZIL_ZC_SEQ 3 90d80c45e0Sbonwick 91da6c28aaSamw typedef enum zil_create { 92da6c28aaSamw Z_FILE, 93da6c28aaSamw Z_DIR, 94da6c28aaSamw Z_XATTRDIR, 95da6c28aaSamw } zil_create_t; 96da6c28aaSamw 97da6c28aaSamw /* 98da6c28aaSamw * size of xvattr log section. 99da6c28aaSamw * its composed of lr_attr_t + xvattr bitmap + 2 64 bit timestamps 100da6c28aaSamw * for create time and a single 64 bit integer for all of the attributes, 101da6c28aaSamw * and 4 64 bit integers (32 bytes) for the scanstamp. 102da6c28aaSamw * 103da6c28aaSamw */ 104da6c28aaSamw 105da6c28aaSamw #define ZIL_XVAT_SIZE(mapsize) \ 106da6c28aaSamw sizeof (lr_attr_t) + (sizeof (uint32_t) * (mapsize - 1)) + \ 107da6c28aaSamw (sizeof (uint64_t) * 7) 108*569e6c63Smarks 109*569e6c63Smarks /* 110*569e6c63Smarks * Size of ACL in log. The ACE data is padded out to properly align 111*569e6c63Smarks * on 8 byte boundary. 112*569e6c63Smarks */ 113*569e6c63Smarks 114*569e6c63Smarks #define ZIL_ACE_LENGTH(x) (roundup(x, sizeof (uint64_t))) 115*569e6c63Smarks 116fa9e4066Sahrens /* 117fa9e4066Sahrens * Intent log transaction types and record structures 118fa9e4066Sahrens */ 119da6c28aaSamw #define TX_CREATE 1 /* Create file */ 120da6c28aaSamw #define TX_MKDIR 2 /* Make directory */ 121da6c28aaSamw #define TX_MKXATTR 3 /* Make XATTR directory */ 122da6c28aaSamw #define TX_SYMLINK 4 /* Create symbolic link to a file */ 123da6c28aaSamw #define TX_REMOVE 5 /* Remove file */ 124da6c28aaSamw #define TX_RMDIR 6 /* Remove directory */ 125da6c28aaSamw #define TX_LINK 7 /* Create hard link to a file */ 126da6c28aaSamw #define TX_RENAME 8 /* Rename a file */ 127da6c28aaSamw #define TX_WRITE 9 /* File write */ 128da6c28aaSamw #define TX_TRUNCATE 10 /* Truncate a file */ 129da6c28aaSamw #define TX_SETATTR 11 /* Set file attributes */ 130da6c28aaSamw #define TX_ACL_V0 12 /* Set old formatted ACL */ 131da6c28aaSamw #define TX_ACL 13 /* Set ACL */ 132da6c28aaSamw #define TX_CREATE_ACL 14 /* create with ACL */ 133da6c28aaSamw #define TX_CREATE_ATTR 15 /* create + attrs */ 134da6c28aaSamw #define TX_CREATE_ACL_ATTR 16 /* create with ACL + attrs */ 135da6c28aaSamw #define TX_MKDIR_ACL 17 /* mkdir with ACL */ 136da6c28aaSamw #define TX_MKDIR_ATTR 18 /* mkdir with attr */ 137da6c28aaSamw #define TX_MKDIR_ACL_ATTR 19 /* mkdir with ACL + attrs */ 138da6c28aaSamw #define TX_MAX_TYPE 20 /* Max transaction type */ 139da6c28aaSamw 140da6c28aaSamw /* 141da6c28aaSamw * The transactions for mkdir, symlink, remove, rmdir, link, and rename 142da6c28aaSamw * may have the following bit set, indicating the original request 143da6c28aaSamw * specified case-insensitive handling of names. 144da6c28aaSamw */ 145da6c28aaSamw #define TX_CI ((uint64_t)0x1 << 63) /* case-insensitive behavior requested */ 146fa9e4066Sahrens 147fa9e4066Sahrens /* 148fa9e4066Sahrens * Format of log records. 149fa9e4066Sahrens * The fields are carefully defined to allow them to be aligned 150fa9e4066Sahrens * and sized the same on sparc & intel architectures. 151fa9e4066Sahrens * Each log record has a common structure at the beginning. 152b19a79ecSperrin * 153b19a79ecSperrin * Note, lrc_seq holds two different sequence numbers. Whilst in memory 154b19a79ecSperrin * it contains the transaction sequence number. The log record on 155b19a79ecSperrin * disk holds the sequence number of all log records which is used to 156b19a79ecSperrin * ensure we don't replay the same record. The two sequence numbers are 157b19a79ecSperrin * different because the transactions can now be pushed out of order. 158fa9e4066Sahrens */ 159fa9e4066Sahrens typedef struct { /* common log record header */ 160fa9e4066Sahrens uint64_t lrc_txtype; /* intent log transaction type */ 161fa9e4066Sahrens uint64_t lrc_reclen; /* transaction record length */ 162fa9e4066Sahrens uint64_t lrc_txg; /* dmu transaction group number */ 163b19a79ecSperrin uint64_t lrc_seq; /* see comment above */ 164fa9e4066Sahrens } lr_t; 165fa9e4066Sahrens 166da6c28aaSamw /* 167da6c28aaSamw * Handle option extended vattr attributes. 168da6c28aaSamw * 169da6c28aaSamw * Whenever new attributes are added the version number 170da6c28aaSamw * will need to be updated as will code in 171da6c28aaSamw * zfs_log.c and zfs_replay.c 172da6c28aaSamw */ 173da6c28aaSamw typedef struct { 174da6c28aaSamw uint32_t lr_attr_masksize; /* number of elements in array */ 175da6c28aaSamw uint32_t lr_attr_bitmap; /* First entry of array */ 176da6c28aaSamw /* remainder of array and any additional fields */ 177da6c28aaSamw } lr_attr_t; 178da6c28aaSamw 179da6c28aaSamw /* 180da6c28aaSamw * log record for creates without optional ACL. 181da6c28aaSamw * This log record does support optional xvattr_t attributes. 182da6c28aaSamw */ 183fa9e4066Sahrens typedef struct { 184fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 185fa9e4066Sahrens uint64_t lr_doid; /* object id of directory */ 186fa9e4066Sahrens uint64_t lr_foid; /* object id of created file object */ 187fa9e4066Sahrens uint64_t lr_mode; /* mode of object */ 188fa9e4066Sahrens uint64_t lr_uid; /* uid of object */ 189fa9e4066Sahrens uint64_t lr_gid; /* gid of object */ 190fa9e4066Sahrens uint64_t lr_gen; /* generation (txg of creation) */ 191fa9e4066Sahrens uint64_t lr_crtime[2]; /* creation time */ 192fa9e4066Sahrens uint64_t lr_rdev; /* rdev of object to create */ 193fa9e4066Sahrens /* name of object to create follows this */ 194fa9e4066Sahrens /* for symlinks, link content follows name */ 195da6c28aaSamw /* for creates with xvattr data, the name follows the xvattr info */ 196fa9e4066Sahrens } lr_create_t; 197fa9e4066Sahrens 198da6c28aaSamw /* 199da6c28aaSamw * FUID ACL record will be an array of ACEs from the original ACL. 200da6c28aaSamw * If this array includes ephemeral IDs, the record will also include 201da6c28aaSamw * an array of log-specific FUIDs to replace the ephemeral IDs. 202da6c28aaSamw * Only one copy of each unique domain will be present, so the log-specific 203da6c28aaSamw * FUIDs will use an index into a compressed domain table. On replay this 204da6c28aaSamw * information will be used to construct real FUIDs (and bypass idmap, 205da6c28aaSamw * since it may not be available). 206da6c28aaSamw */ 207da6c28aaSamw 208da6c28aaSamw /* 209da6c28aaSamw * Log record for creates with optional ACL 210da6c28aaSamw * This log record is also used for recording any FUID 211da6c28aaSamw * information needed for replaying the create. If the 212da6c28aaSamw * file doesn't have any actual ACEs then the lr_aclcnt 213da6c28aaSamw * would be zero. 214da6c28aaSamw */ 215da6c28aaSamw typedef struct { 216da6c28aaSamw lr_create_t lr_create; /* common create portion */ 217da6c28aaSamw uint64_t lr_aclcnt; /* number of ACEs in ACL */ 218da6c28aaSamw uint64_t lr_domcnt; /* number of unique domains */ 219da6c28aaSamw uint64_t lr_fuidcnt; /* number of real fuids */ 220da6c28aaSamw uint64_t lr_acl_bytes; /* number of bytes in ACL */ 221da6c28aaSamw uint64_t lr_acl_flags; /* ACL flags */ 222da6c28aaSamw /* lr_acl_bytes number of variable sized ace's follows */ 223da6c28aaSamw /* if create is also setting xvattr's, then acl data follows xvattr */ 224da6c28aaSamw /* if ACE FUIDs are needed then they will follow the xvattr_t */ 225da6c28aaSamw /* Following the FUIDs will be the domain table information. */ 226da6c28aaSamw /* The FUIDs for the owner and group will be in the lr_create */ 227da6c28aaSamw /* portion of the record. */ 228da6c28aaSamw /* name follows ACL data */ 229da6c28aaSamw } lr_acl_create_t; 230da6c28aaSamw 231fa9e4066Sahrens typedef struct { 232fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 233fa9e4066Sahrens uint64_t lr_doid; /* obj id of directory */ 234fa9e4066Sahrens /* name of object to remove follows this */ 235fa9e4066Sahrens } lr_remove_t; 236fa9e4066Sahrens 237fa9e4066Sahrens typedef struct { 238fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 239fa9e4066Sahrens uint64_t lr_doid; /* obj id of directory */ 240fa9e4066Sahrens uint64_t lr_link_obj; /* obj id of link */ 241fa9e4066Sahrens /* name of object to link follows this */ 242fa9e4066Sahrens } lr_link_t; 243fa9e4066Sahrens 244fa9e4066Sahrens typedef struct { 245fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 246fa9e4066Sahrens uint64_t lr_sdoid; /* obj id of source directory */ 247fa9e4066Sahrens uint64_t lr_tdoid; /* obj id of target directory */ 248fa9e4066Sahrens /* 2 strings: names of source and destination follow this */ 249fa9e4066Sahrens } lr_rename_t; 250fa9e4066Sahrens 251fa9e4066Sahrens typedef struct { 252fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 253fa9e4066Sahrens uint64_t lr_foid; /* file object to write */ 254fa9e4066Sahrens uint64_t lr_offset; /* offset to write to */ 255fa9e4066Sahrens uint64_t lr_length; /* user data length to write */ 256fa9e4066Sahrens uint64_t lr_blkoff; /* offset represented by lr_blkptr */ 257fa9e4066Sahrens blkptr_t lr_blkptr; /* spa block pointer for replay */ 258fa9e4066Sahrens /* write data will follow for small writes */ 259fa9e4066Sahrens } lr_write_t; 260fa9e4066Sahrens 261fa9e4066Sahrens typedef struct { 262fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 263fa9e4066Sahrens uint64_t lr_foid; /* object id of file to truncate */ 264fa9e4066Sahrens uint64_t lr_offset; /* offset to truncate from */ 265fa9e4066Sahrens uint64_t lr_length; /* length to truncate */ 266fa9e4066Sahrens } lr_truncate_t; 267fa9e4066Sahrens 268fa9e4066Sahrens typedef struct { 269fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 270fa9e4066Sahrens uint64_t lr_foid; /* file object to change attributes */ 271fa9e4066Sahrens uint64_t lr_mask; /* mask of attributes to set */ 272fa9e4066Sahrens uint64_t lr_mode; /* mode to set */ 273fa9e4066Sahrens uint64_t lr_uid; /* uid to set */ 274fa9e4066Sahrens uint64_t lr_gid; /* gid to set */ 275fa9e4066Sahrens uint64_t lr_size; /* size to set */ 276fa9e4066Sahrens uint64_t lr_atime[2]; /* access time */ 277fa9e4066Sahrens uint64_t lr_mtime[2]; /* modification time */ 278da6c28aaSamw /* optional attribute lr_attr_t may be here */ 279fa9e4066Sahrens } lr_setattr_t; 280fa9e4066Sahrens 281fa9e4066Sahrens typedef struct { 282fa9e4066Sahrens lr_t lr_common; /* common portion of log record */ 283fa9e4066Sahrens uint64_t lr_foid; /* obj id of file */ 284fa9e4066Sahrens uint64_t lr_aclcnt; /* number of acl entries */ 285fa9e4066Sahrens /* lr_aclcnt number of ace_t entries follow this */ 286da6c28aaSamw } lr_acl_v0_t; 287da6c28aaSamw 288da6c28aaSamw typedef struct { 289da6c28aaSamw lr_t lr_common; /* common portion of log record */ 290da6c28aaSamw uint64_t lr_foid; /* obj id of file */ 291da6c28aaSamw uint64_t lr_aclcnt; /* number of ACEs in ACL */ 292da6c28aaSamw uint64_t lr_domcnt; /* number of unique domains */ 293da6c28aaSamw uint64_t lr_fuidcnt; /* number of real fuids */ 294da6c28aaSamw uint64_t lr_acl_bytes; /* number of bytes in ACL */ 295da6c28aaSamw uint64_t lr_acl_flags; /* ACL flags */ 296da6c28aaSamw /* lr_acl_bytes number of variable sized ace's follows */ 297fa9e4066Sahrens } lr_acl_t; 298fa9e4066Sahrens 299fa9e4066Sahrens /* 300fa9e4066Sahrens * ZIL structure definitions, interface function prototype and globals. 301fa9e4066Sahrens */ 302fa9e4066Sahrens 303fa9e4066Sahrens /* 304fa9e4066Sahrens * ZFS intent log transaction structure 305fa9e4066Sahrens */ 306104e2ed7Sperrin typedef enum { 307104e2ed7Sperrin WR_INDIRECT, /* indirect - a large write (dmu_sync() data */ 308104e2ed7Sperrin /* and put blkptr in log, rather than actual data) */ 309104e2ed7Sperrin WR_COPIED, /* immediate - data is copied into lr_write_t */ 310104e2ed7Sperrin WR_NEED_COPY, /* immediate - data needs to be copied if pushed */ 311104e2ed7Sperrin } itx_wr_state_t; 312104e2ed7Sperrin 313fa9e4066Sahrens typedef struct itx { 314fa9e4066Sahrens list_node_t itx_node; /* linkage on zl_itx_list */ 315fa9e4066Sahrens void *itx_private; /* type-specific opaque data */ 316104e2ed7Sperrin itx_wr_state_t itx_wr_state; /* write state */ 31767bd71c6Sperrin uint8_t itx_sync; /* synchronous transaction */ 318fa9e4066Sahrens lr_t itx_lr; /* common part of log record */ 319fa9e4066Sahrens /* followed by type-specific part of lr_xx_t and its immediate data */ 320fa9e4066Sahrens } itx_t; 321fa9e4066Sahrens 32267bd71c6Sperrin 32367bd71c6Sperrin /* 32467bd71c6Sperrin * zgd_t is passed through dmu_sync() to the callback routine zfs_get_done() 32567bd71c6Sperrin * to handle the cleanup of the dmu_sync() buffer write 32667bd71c6Sperrin */ 32767bd71c6Sperrin typedef struct { 32867bd71c6Sperrin zilog_t *zgd_zilog; /* zilog */ 32967bd71c6Sperrin blkptr_t *zgd_bp; /* block pointer */ 33067bd71c6Sperrin struct rl *zgd_rl; /* range lock */ 33167bd71c6Sperrin } zgd_t; 33267bd71c6Sperrin 33367bd71c6Sperrin 334fa9e4066Sahrens typedef void zil_parse_blk_func_t(zilog_t *zilog, blkptr_t *bp, void *arg, 335fa9e4066Sahrens uint64_t txg); 336fa9e4066Sahrens typedef void zil_parse_lr_func_t(zilog_t *zilog, lr_t *lr, void *arg, 337fa9e4066Sahrens uint64_t txg); 338fa9e4066Sahrens typedef int zil_replay_func_t(); 339c5c6ffa0Smaybee typedef int zil_get_data_t(void *arg, lr_write_t *lr, char *dbuf, zio_t *zio); 340fa9e4066Sahrens 341d80c45e0Sbonwick extern uint64_t zil_parse(zilog_t *zilog, zil_parse_blk_func_t *parse_blk_func, 342fa9e4066Sahrens zil_parse_lr_func_t *parse_lr_func, void *arg, uint64_t txg); 343fa9e4066Sahrens 344fa9e4066Sahrens extern void zil_init(void); 345fa9e4066Sahrens extern void zil_fini(void); 346fa9e4066Sahrens 347fa9e4066Sahrens extern zilog_t *zil_alloc(objset_t *os, zil_header_t *zh_phys); 348fa9e4066Sahrens extern void zil_free(zilog_t *zilog); 349fa9e4066Sahrens 350fa9e4066Sahrens extern zilog_t *zil_open(objset_t *os, zil_get_data_t *get_data); 351fa9e4066Sahrens extern void zil_close(zilog_t *zilog); 352fa9e4066Sahrens 353fa9e4066Sahrens extern void zil_replay(objset_t *os, void *arg, uint64_t *txgp, 354893a6d32Sahrens zil_replay_func_t *replay_func[TX_MAX_TYPE]); 355d80c45e0Sbonwick extern void zil_destroy(zilog_t *zilog, boolean_t keep_first); 3563a8a1de4Sperrin extern void zil_rollback_destroy(zilog_t *zilog, dmu_tx_t *tx); 357fa9e4066Sahrens 358da6c28aaSamw extern itx_t *zil_itx_create(uint64_t txtype, size_t lrsize); 359fa9e4066Sahrens extern uint64_t zil_itx_assign(zilog_t *zilog, itx_t *itx, dmu_tx_t *tx); 360fa9e4066Sahrens 361b19a79ecSperrin extern void zil_commit(zilog_t *zilog, uint64_t seq, uint64_t oid); 362fa9e4066Sahrens 3631d452cf5Sahrens extern int zil_claim(char *osname, void *txarg); 364fa9e4066Sahrens extern void zil_sync(zilog_t *zilog, dmu_tx_t *tx); 365fa9e4066Sahrens extern void zil_clean(zilog_t *zilog); 366436b2950Sperrin extern int zil_is_committed(zilog_t *zilog); 367fa9e4066Sahrens 368fa9e4066Sahrens extern int zil_suspend(zilog_t *zilog); 369fa9e4066Sahrens extern void zil_resume(zilog_t *zilog); 370fa9e4066Sahrens 37167bd71c6Sperrin extern void zil_add_vdev(zilog_t *zilog, uint64_t vdev); 37267bd71c6Sperrin 373fa9e4066Sahrens extern int zil_disable; 374fa9e4066Sahrens 375fa9e4066Sahrens #ifdef __cplusplus 376fa9e4066Sahrens } 377fa9e4066Sahrens #endif 378fa9e4066Sahrens 379fa9e4066Sahrens #endif /* _SYS_ZIL_H */ 380