diff options
Diffstat (limited to 'cddl/contrib/opensolaris/lib/libzpool/common/sys/zfs_context.h')
| -rw-r--r-- | cddl/contrib/opensolaris/lib/libzpool/common/sys/zfs_context.h | 509 |
1 files changed, 509 insertions, 0 deletions
diff --git a/cddl/contrib/opensolaris/lib/libzpool/common/sys/zfs_context.h b/cddl/contrib/opensolaris/lib/libzpool/common/sys/zfs_context.h new file mode 100644 index 0000000..74c9019 --- /dev/null +++ b/cddl/contrib/opensolaris/lib/libzpool/common/sys/zfs_context.h @@ -0,0 +1,509 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ +/* + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SYS_ZFS_CONTEXT_H +#define _SYS_ZFS_CONTEXT_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +#ifdef __cplusplus +extern "C" { +#endif + +#define _SYS_MUTEX_H +#define _SYS_RWLOCK_H +#define _SYS_CONDVAR_H +#define _SYS_SYSTM_H +#define _SYS_DEBUG_H +#define _SYS_T_LOCK_H +#define _SYS_VNODE_H +#define _SYS_VFS_H +#define _SYS_SUNDDI_H +#define _SYS_CALLB_H +#define _SYS_SCHED_H_ + +#include <solaris.h> +#include <stdio.h> +#include <stdlib.h> +#include <stddef.h> +#include <stdarg.h> +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> +#include <string.h> +#include <strings.h> +#include <thread.h> +#include <assert.h> +#include <limits.h> +#include <dirent.h> +#include <time.h> +#include <math.h> +#include <umem.h> +#include <vmem.h> +#include <fsshare.h> +#include <sys/note.h> +#include <sys/types.h> +#include <sys/atomic.h> +#include <sys/sysmacros.h> +#include <sys/bitmap.h> +#include <sys/resource.h> +#include <sys/byteorder.h> +#include <sys/list.h> +#include <sys/time.h> +#include <sys/uio.h> +#include <sys/mntent.h> +#include <sys/mnttab.h> +#include <sys/zfs_debug.h> +#include <sys/debug.h> +#include <sys/sdt.h> +#include <sys/kstat.h> +#include <sys/kernel.h> +#include <sys/disk.h> +#include <machine/atomic.h> + +#define ZFS_EXPORTS_PATH "/etc/zfs/exports" + +/* + * Debugging + */ + +/* + * Note that we are not using the debugging levels. + */ + +#define CE_CONT 0 /* continuation */ +#define CE_NOTE 1 /* notice */ +#define CE_WARN 2 /* warning */ +#define CE_PANIC 3 /* panic */ +#define CE_IGNORE 4 /* print nothing */ + +/* + * ZFS debugging + */ + +#define ZFS_LOG(...) do { } while (0) + +typedef u_longlong_t rlim64_t; +#define RLIM64_INFINITY ((rlim64_t)-3) + +#ifdef ZFS_DEBUG +extern void dprintf_setup(int *argc, char **argv); +#endif /* ZFS_DEBUG */ + +extern void cmn_err(int, const char *, ...); +extern void vcmn_err(int, const char *, __va_list); +extern void panic(const char *, ...); +extern void vpanic(const char *, __va_list); + +/* This definition is copied from assert.h. */ +#if defined(__STDC__) +#if __STDC_VERSION__ - 0 >= 199901L +#define verify(EX) (void)((EX) || \ + (__assert_c99(#EX, __FILE__, __LINE__, __func__), 0)) +#else +#define verify(EX) (void)((EX) || (__assert(#EX, __FILE__, __LINE__), 0)) +#endif /* __STDC_VERSION__ - 0 >= 199901L */ +#else +#define verify(EX) (void)((EX) || (_assert("EX", __FILE__, __LINE__), 0)) +#endif /* __STDC__ */ + + +#define VERIFY verify +#define ASSERT assert + +extern void __assert(const char *, const char *, int); + +#ifdef lint +#define VERIFY3_IMPL(x, y, z, t) if (x == z) ((void)0) +#else +/* BEGIN CSTYLED */ +#define VERIFY3_IMPL(LEFT, OP, RIGHT, TYPE) do { \ + const TYPE __left = (TYPE)(LEFT); \ + const TYPE __right = (TYPE)(RIGHT); \ + if (!(__left OP __right)) { \ + char *__buf = alloca(256); \ + (void) snprintf(__buf, 256, "%s %s %s (0x%llx %s 0x%llx)", \ + #LEFT, #OP, #RIGHT, \ + (u_longlong_t)__left, #OP, (u_longlong_t)__right); \ + __assert(__buf, __FILE__, __LINE__); \ + } \ +_NOTE(CONSTCOND) } while (0) +/* END CSTYLED */ +#endif /* lint */ + +#define VERIFY3S(x, y, z) VERIFY3_IMPL(x, y, z, int64_t) +#define VERIFY3U(x, y, z) VERIFY3_IMPL(x, y, z, uint64_t) +#define VERIFY3P(x, y, z) VERIFY3_IMPL(x, y, z, uintptr_t) + +#ifdef NDEBUG +#define ASSERT3S(x, y, z) ((void)0) +#define ASSERT3U(x, y, z) ((void)0) +#define ASSERT3P(x, y, z) ((void)0) +#else +#define ASSERT3S(x, y, z) VERIFY3S(x, y, z) +#define ASSERT3U(x, y, z) VERIFY3U(x, y, z) +#define ASSERT3P(x, y, z) VERIFY3P(x, y, z) +#endif + +/* + * Dtrace SDT probes have different signatures in userland than they do in + * kernel. If they're being used in kernel code, re-define them out of + * existence for their counterparts in libzpool. + */ + +#ifdef DTRACE_PROBE1 +#undef DTRACE_PROBE1 +#define DTRACE_PROBE1(a, b, c) ((void)0) +#endif /* DTRACE_PROBE1 */ + +#ifdef DTRACE_PROBE2 +#undef DTRACE_PROBE2 +#define DTRACE_PROBE2(a, b, c, d, e) ((void)0) +#endif /* DTRACE_PROBE2 */ + +#ifdef DTRACE_PROBE3 +#undef DTRACE_PROBE3 +#define DTRACE_PROBE3(a, b, c, d, e, f, g) ((void)0) +#endif /* DTRACE_PROBE3 */ + +#ifdef DTRACE_PROBE4 +#undef DTRACE_PROBE4 +#define DTRACE_PROBE4(a, b, c, d, e, f, g, h, i) ((void)0) +#endif /* DTRACE_PROBE4 */ + +/* + * Threads + */ +#define curthread ((void *)(uintptr_t)thr_self()) + +typedef struct kthread kthread_t; + +#define thread_create(stk, stksize, func, arg, len, pp, state, pri) \ + zk_thread_create(func, arg) +#define thread_exit() thr_exit(NULL) + +extern kthread_t *zk_thread_create(void (*func)(), void *arg); + +#define issig(why) (FALSE) +#define ISSIG(thr, why) (FALSE) + +/* + * Mutexes + */ +typedef struct kmutex { + void *m_owner; + mutex_t m_lock; +} kmutex_t; + +#define MUTEX_DEFAULT USYNC_THREAD +#undef MUTEX_HELD +#define MUTEX_HELD(m) ((m)->m_owner == curthread) + +/* + * Argh -- we have to get cheesy here because the kernel and userland + * have different signatures for the same routine. + */ +//extern int _mutex_init(mutex_t *mp, int type, void *arg); +//extern int _mutex_destroy(mutex_t *mp); + +#define mutex_init(mp, b, c, d) zmutex_init((kmutex_t *)(mp)) +#define mutex_destroy(mp) zmutex_destroy((kmutex_t *)(mp)) + +extern void zmutex_init(kmutex_t *mp); +extern void zmutex_destroy(kmutex_t *mp); +extern void mutex_enter(kmutex_t *mp); +extern void mutex_exit(kmutex_t *mp); +extern int mutex_tryenter(kmutex_t *mp); +extern void *mutex_owner(kmutex_t *mp); + +/* + * RW locks + */ +typedef struct krwlock { + int rw_count; + void *rw_owner; + rwlock_t rw_lock; +} krwlock_t; + +typedef int krw_t; + +#define RW_READER 0 +#define RW_WRITER 1 +#define RW_DEFAULT USYNC_THREAD + +#undef RW_READ_HELD + +#undef RW_WRITE_HELD +#define RW_WRITE_HELD(x) ((x)->rw_owner == curthread) +#define RW_LOCK_HELD(x) rw_lock_held(x) + +extern void rw_init(krwlock_t *rwlp, char *name, int type, void *arg); +extern void rw_destroy(krwlock_t *rwlp); +extern void rw_enter(krwlock_t *rwlp, krw_t rw); +extern int rw_tryenter(krwlock_t *rwlp, krw_t rw); +extern int rw_tryupgrade(krwlock_t *rwlp); +extern void rw_exit(krwlock_t *rwlp); +extern int rw_lock_held(krwlock_t *rwlp); +#define rw_downgrade(rwlp) do { } while (0) + +/* + * Condition variables + */ +typedef cond_t kcondvar_t; + +#define CV_DEFAULT USYNC_THREAD + +extern void cv_init(kcondvar_t *cv, char *name, int type, void *arg); +extern void cv_destroy(kcondvar_t *cv); +extern void cv_wait(kcondvar_t *cv, kmutex_t *mp); +extern clock_t cv_timedwait(kcondvar_t *cv, kmutex_t *mp, clock_t abstime); +extern void cv_signal(kcondvar_t *cv); +extern void cv_broadcast(kcondvar_t *cv); + +/* + * Kernel memory + */ +#define KM_SLEEP UMEM_NOFAIL +#define KM_NOSLEEP UMEM_DEFAULT +#define KMC_NODEBUG UMC_NODEBUG +#define kmem_alloc(_s, _f) umem_alloc(_s, _f) +#define kmem_zalloc(_s, _f) umem_zalloc(_s, _f) +#define kmem_free(_b, _s) umem_free(_b, _s) +#define kmem_size() (physmem * PAGESIZE) +#define kmem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) \ + umem_cache_create(_a, _b, _c, _d, _e, _f, _g, _h, _i) +#define kmem_cache_destroy(_c) umem_cache_destroy(_c) +#define kmem_cache_alloc(_c, _f) umem_cache_alloc(_c, _f) +#define kmem_cache_free(_c, _b) umem_cache_free(_c, _b) +#define kmem_debugging() 0 +#define kmem_cache_reap_now(c) + +typedef umem_cache_t kmem_cache_t; + +/* + * Task queues + */ +typedef struct taskq taskq_t; +typedef uintptr_t taskqid_t; +typedef void (task_func_t)(void *); + +#define TASKQ_PREPOPULATE 0x0001 +#define TASKQ_CPR_SAFE 0x0002 /* Use CPR safe protocol */ +#define TASKQ_DYNAMIC 0x0004 /* Use dynamic thread scheduling */ + +#define TQ_SLEEP KM_SLEEP /* Can block for memory */ +#define TQ_NOSLEEP KM_NOSLEEP /* cannot block for memory; may fail */ +#define TQ_NOQUEUE 0x02 /* Do not enqueue if can't dispatch */ + +extern taskq_t *taskq_create(const char *, int, pri_t, int, int, uint_t); +extern taskqid_t taskq_dispatch(taskq_t *, task_func_t, void *, uint_t); +extern void taskq_destroy(taskq_t *); +extern void taskq_wait(taskq_t *); +extern int taskq_member(taskq_t *, void *); + +/* + * vnodes + */ +typedef struct vnode { + uint64_t v_size; + int v_fd; + char *v_path; +} vnode_t; + +typedef struct vattr { + uint_t va_mask; /* bit-mask of attributes */ + u_offset_t va_size; /* file size in bytes */ +} vattr_t; + +#define AT_TYPE 0x0001 +#define AT_MODE 0x0002 +#define AT_UID 0x0004 +#define AT_GID 0x0008 +#define AT_FSID 0x0010 +#define AT_NODEID 0x0020 +#define AT_NLINK 0x0040 +#define AT_SIZE 0x0080 +#define AT_ATIME 0x0100 +#define AT_MTIME 0x0200 +#define AT_CTIME 0x0400 +#define AT_RDEV 0x0800 +#define AT_BLKSIZE 0x1000 +#define AT_NBLOCKS 0x2000 +#define AT_SEQ 0x8000 + +#define CRCREAT 0 + +#define VOP_CLOSE(vp, f, c, o, cr) 0 +#define VOP_PUTPAGE(vp, of, sz, fl, cr) 0 +#define VOP_GETATTR(vp, vap, fl, cr) ((vap)->va_size = (vp)->v_size, 0) + +#define VOP_FSYNC(vp, f, cr) fsync((vp)->v_fd) + +#define VN_RELE(vp) vn_close(vp) + +extern int vn_open(char *path, int x1, int oflags, int mode, vnode_t **vpp, + int x2, int x3); +extern int vn_openat(char *path, int x1, int oflags, int mode, vnode_t **vpp, + int x2, int x3, vnode_t *vp); +extern int vn_rdwr(int uio, vnode_t *vp, void *addr, ssize_t len, + offset_t offset, int x1, int x2, rlim64_t x3, void *x4, ssize_t *residp); +extern void vn_close(vnode_t *vp); + +#define vn_remove(path, x1, x2) remove(path) +#define vn_rename(from, to, seg) rename((from), (to)) +#define vn_is_readonly(vp) B_FALSE + +extern vnode_t *rootdir; + +#include <sys/file.h> /* for FREAD, FWRITE, etc */ +#define FTRUNC O_TRUNC + +/* + * Random stuff + */ +#define lbolt (gethrtime() >> 23) +#define lbolt64 (gethrtime() >> 23) +//#define hz 119 /* frequency when using gethrtime() >> 23 for lbolt */ + +extern void delay(clock_t ticks); + +#define gethrestime_sec() time(NULL) + +#define max_ncpus 64 + +#define minclsyspri 60 +#define maxclsyspri 99 + +#define CPU_SEQID (thr_self() & (max_ncpus - 1)) + +#define kcred NULL +#define CRED() NULL + +extern uint64_t physmem; + +extern int highbit(ulong_t i); +extern int random_get_bytes(uint8_t *ptr, size_t len); +extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len); + +extern void kernel_init(int); +extern void kernel_fini(void); + +struct spa; +extern void nicenum(uint64_t num, char *buf); +extern void show_pool_stats(struct spa *); + +typedef struct callb_cpr { + kmutex_t *cc_lockp; +} callb_cpr_t; + +#define CALLB_CPR_INIT(cp, lockp, func, name) { \ + (cp)->cc_lockp = lockp; \ +} + +#define CALLB_CPR_SAFE_BEGIN(cp) { \ + ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ +} + +#define CALLB_CPR_SAFE_END(cp, lockp) { \ + ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ +} + +#define CALLB_CPR_EXIT(cp) { \ + ASSERT(MUTEX_HELD((cp)->cc_lockp)); \ + mutex_exit((cp)->cc_lockp); \ +} + +#define zone_dataset_visible(x, y) (1) +#define INGLOBALZONE(z) (1) + +/* + * Hostname information + */ +extern struct utsname utsname; +extern char hw_serial[]; +extern int ddi_strtoul(const char *str, char **nptr, int base, + unsigned long *result); + +/* ZFS Boot Related stuff. */ + +struct _buf { + intptr_t _fd; +}; + +struct bootstat { + uint64_t st_size; +}; + +extern struct _buf *kobj_open_file(char *name); +extern int kobj_read_file(struct _buf *file, char *buf, unsigned size, + unsigned off); +extern void kobj_close_file(struct _buf *file); +extern int kobj_get_filesize(struct _buf *file, uint64_t *size); +/* Random compatibility stuff. */ +#define lbolt (gethrtime() >> 23) +#define lbolt64 (gethrtime() >> 23) + +extern int hz; +extern uint64_t physmem; + +#define gethrestime_sec() time(NULL) + +#define pwrite64(d, p, n, o) pwrite(d, p, n, o) +#define readdir64(d) readdir(d) +#define SIGPENDING(td) (0) +#define root_mount_wait() do { } while (0) +#define root_mounted() (1) + +struct file { + void *dummy; +}; + +#define FCREAT O_CREAT +#define FOFFMAX 0x0 + +#define SX_SYSINIT(name, lock, desc) + +#define SYSCTL_DECL(...) +#define SYSCTL_NODE(...) +#define SYSCTL_INT(...) +#define SYSCTL_ULONG(...) +#ifdef TUNABLE_INT +#undef TUNABLE_INT +#undef TUNABLE_ULONG +#endif +#define TUNABLE_INT(...) +#define TUNABLE_ULONG(...) + +/* Errors */ + +#ifndef ERESTART +#define ERESTART (-1) +#endif + +#ifdef __cplusplus +} +#endif + +#endif /* _SYS_ZFS_CONTEXT_H */ |
