diff options
author | behlendo <behlendo@7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c> | 2008-03-01 00:45:59 +0000 |
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committer | behlendo <behlendo@7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c> | 2008-03-01 00:45:59 +0000 |
commit | f4b377415b4b53722addedc10801db24ad4e6f23 (patch) | |
tree | be8f09aeabfeaf2361d8d84e975c49ec68d96483 /include/sys/kstat.h | |
parent | 09b414e880b0c2e4ae08d82354bbae034dafdd9e (diff) |
Reorganize /include/ to add a /sys/, this way we don't need to
muck with #includes in existing Solaris style source to get it
to find the right stuff.
git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@18 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
Diffstat (limited to 'include/sys/kstat.h')
-rw-r--r-- | include/sys/kstat.h | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/include/sys/kstat.h b/include/sys/kstat.h new file mode 100644 index 000000000..0b79a41c0 --- /dev/null +++ b/include/sys/kstat.h @@ -0,0 +1,138 @@ +#ifndef _SPL_KSTAT_H +#define _SPL_KSTAT_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include <linux/module.h> +#include <sys/types.h> +#include <sys/time.h> + +/* XXX - The minimum functionality here is stubbed out but nothing works. */ + +#define KSTAT_STRLEN 31 /* 30 chars + NULL; must be 16 * n - 1 */ + +#define KSTAT_TYPE_RAW 0 /* can be anything */ + /* ks_ndata >= 1 */ +#define KSTAT_TYPE_NAMED 1 /* name/value pair */ + /* ks_ndata >= 1 */ +#define KSTAT_TYPE_INTR 2 /* interrupt statistics */ + /* ks_ndata == 1 */ +#define KSTAT_TYPE_IO 3 /* I/O statistics */ + /* ks_ndata == 1 */ +#define KSTAT_TYPE_TIMER 4 /* event timer */ + /* ks_ndata >= 1 */ + +#define KSTAT_NUM_TYPES 5 + + +#define KSTAT_DATA_CHAR 0 +#define KSTAT_DATA_INT32 1 +#define KSTAT_DATA_UINT32 2 +#define KSTAT_DATA_INT64 3 +#define KSTAT_DATA_UINT64 4 + + +#define KSTAT_FLAG_VIRTUAL 0x01 +#define KSTAT_FLAG_VAR_SIZE 0x02 +#define KSTAT_FLAG_WRITABLE 0x04 +#define KSTAT_FLAG_PERSISTENT 0x08 +#define KSTAT_FLAG_DORMANT 0x10 +#define KSTAT_FLAG_INVALID 0x2 + + +typedef int kid_t; /* unique kstat id */ + +typedef struct kstat_s { + /* + * Fields relevant to both kernel and user + */ + hrtime_t ks_crtime; /* creation time (from gethrtime()) */ + struct kstat_s *ks_next; /* kstat chain linkage */ + kid_t ks_kid; /* unique kstat ID */ + char ks_module[KSTAT_STRLEN]; /* provider module name */ + uchar_t ks_resv; /* reserved, currently just padding */ + int ks_instance; /* provider module's instance */ + char ks_name[KSTAT_STRLEN]; /* kstat name */ + uchar_t ks_type; /* kstat data type */ + char ks_class[KSTAT_STRLEN]; /* kstat class */ + uchar_t ks_flags; /* kstat flags */ + void *ks_data; /* kstat type-specific data */ + uint_t ks_ndata; /* # of type-specific data records */ + size_t ks_data_size; /* total size of kstat data section */ + hrtime_t ks_snaptime; /* time of last data shapshot */ + /* + * Fields relevant to kernel only + */ + int (*ks_update)(struct kstat *, int); /* dynamic update */ + void *ks_private; /* arbitrary provider-private data */ + int (*ks_snapshot)(struct kstat *, void *, int); + void *ks_lock; /* protects this kstat's data */ +} kstat_t; + +typedef struct kstat_named_s { + char name[KSTAT_STRLEN]; /* name of counter */ + uchar_t data_type; /* data type */ + union { + char c[16]; /* enough for 128-bit ints */ + int32_t i32; + uint32_t ui32; + struct { + union { + char *ptr; /* NULL-term string */ + char __pad[8]; /* 64-bit padding */ + } addr; + uint32_t len; /* # bytes for strlen + '\0' */ + } str; +/* + * The int64_t and uint64_t types are not valid for a maximally conformant + * 32-bit compilation environment (cc -Xc) using compilers prior to the + * introduction of C99 conforming compiler (reference ISO/IEC 9899:1990). + * In these cases, the visibility of i64 and ui64 is only permitted for + * 64-bit compilation environments or 32-bit non-maximally conformant + * C89 or C90 ANSI C compilation environments (cc -Xt and cc -Xa). In the + * C99 ANSI C compilation environment, the long long type is supported. + * The _INT64_TYPE is defined by the implementation (see sys/int_types.h). + */ + int64_t i64; + uint64_t ui64; + long l; + ulong_t ul; + + /* These structure members are obsolete */ + + longlong_t ll; + u_longlong_t ull; + float f; + double d; + } value; /* value of counter */ +} kstat_named_t; + + +static __inline__ kstat_t * +kstat_create(const char *ks_module, int ks_instance, const char *ks_name, + const char *ks_class, uchar_t ks_type, uint_t ks_ndata, + uchar_t ks_flags) +{ + return NULL; +} + +static __inline__ void +kstat_install(kstat_t *ksp) +{ + return; +} + +static __inline__ void +kstat_delete(kstat_t *ksp) +{ + return; +} + +#ifdef __cplusplus +} +#endif + +#endif /* _SPL_KSTAT_H */ + |