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# -*- coding: utf-8 -*-

########################################################################
#
# License: BSD
# Created: June 20, 2005
# Author: Francesc Alted - faltet@pytables.com
#
# $Id: definitions.pyd 1018 2005-06-20 09:43:34Z faltet $
#
########################################################################

"""Here are some definitions for sharing between extensions."""

import sys

cdef extern from *:
  ctypedef char const_char 'const char'
  #ctypedef long size_t
  ctypedef long uintptr_t

# Standard C functions.
cdef extern from "time.h":
  ctypedef int time_t

from libc.stdio cimport FILE


#-----------------------------------------------------------------------------

# API for NumPy objects
from numpy cimport dtype
cdef extern from "numpy/arrayobject.h":
  object PyArray_Scalar(void *data, dtype descr, object itemsize)


#-----------------------------------------------------------------------------


# Structs and types from HDF5
cdef extern from "hdf5.h" nogil:

  ctypedef int hid_t # In H5Ipublic.h
  ctypedef int hbool_t
  ctypedef int herr_t
  ctypedef int htri_t
  # hsize_t should be unsigned, but Windows platform does not support
  # such an unsigned long long type.
  ctypedef long long hsize_t
  ctypedef signed long long hssize_t
  ctypedef long long int64_t
  ctypedef long long haddr_t

  ctypedef struct hvl_t:
    size_t len # Length of VL data (in base type units)
    void *p # Pointer to VL data

  int H5F_ACC_TRUNC, H5F_ACC_RDONLY, H5F_ACC_RDWR, H5F_ACC_EXCL
  int H5F_ACC_DEBUG, H5F_ACC_CREAT
  int H5P_DEFAULT, H5P_DATASET_XFER, H5S_ALL
  int H5P_FILE_CREATE, H5P_FILE_ACCESS
  int H5FD_LOG_LOC_WRITE, H5FD_LOG_ALL
  int H5I_INVALID_HID
  int H5E_DEFAULT

  # The difference between a single file and a set of mounted files
  cdef enum H5F_scope_t:
    H5F_SCOPE_LOCAL = 0 # specified file handle only
    H5F_SCOPE_GLOBAL = 1 # entire virtual file
    H5F_SCOPE_DOWN = 2 # for internal use only

  cdef enum H5FD_mem_t:
    H5FD_MEM_NOLIST = -1, # Data should not appear in the free list.
                                # Must be negative.
    H5FD_MEM_DEFAULT = 0, # Value not yet set. Can also be the
                                # datatype set in a larger allocation
                                # that will be suballocated by the library.
                                # Must be zero.
    H5FD_MEM_SUPER = 1, # Superblock data
    H5FD_MEM_BTREE = 2, # B-tree data
    H5FD_MEM_DRAW = 3, # Raw data (content of datasets, etc.)
    H5FD_MEM_GHEAP = 4, # Global heap data
    H5FD_MEM_LHEAP = 5, # Local heap data
    H5FD_MEM_OHDR = 6, # Object header data
    H5FD_MEM_NTYPES # Sentinel value - must be last

  cdef enum H5O_type_t:
    H5O_TYPE_UNKNOWN = -1 # Unknown object type
    H5O_TYPE_GROUP # Object is a group
    H5O_TYPE_DATASET # Object is a dataset
    H5O_TYPE_NAMED_DATATYPE # Object is a named data type

  cdef enum H5L_type_t:
    H5L_TYPE_ERROR = -1 # Invalid link type id
    H5L_TYPE_HARD = 0 # Hard link id
    H5L_TYPE_SOFT = 1 # Soft link id
    H5L_TYPE_EXTERNAL = 64, # External link id

  # Values for fill value status
  cdef enum H5D_fill_value_t:
    H5D_FILL_VALUE_ERROR = -1
    H5D_FILL_VALUE_UNDEFINED = 0
    H5D_FILL_VALUE_DEFAULT = 1
    H5D_FILL_VALUE_USER_DEFINED = 2

  # HDF5 layouts
  cdef enum H5D_layout_t:
    H5D_LAYOUT_ERROR = -1
    H5D_COMPACT = 0 # raw data is very small
    H5D_CONTIGUOUS = 1 # the default
    H5D_CHUNKED = 2 # slow and fancy
    H5D_NLAYOUTS = 3 # this one must be last!

  # Byte orders
  cdef enum H5T_order_t:
    H5T_ORDER_ERROR = -1 # error
    H5T_ORDER_LE = 0 # little endian
    H5T_ORDER_BE = 1 # bit endian
    H5T_ORDER_VAX = 2 # VAX mixed endian
    H5T_ORDER_NONE = 3 # no particular order (strings, bits,..)

  # HDF5 signed enums
  cdef enum H5T_sign_t:
    H5T_SGN_ERROR = -1 # error
    H5T_SGN_NONE = 0 # this is an unsigned type
    H5T_SGN_2 = 1 # two's complement
    H5T_NSGN = 2 # this must be last!

  # HDF5 type classes
  cdef enum H5T_class_t:
    H5T_NO_CLASS = -1 # error
    H5T_INTEGER = 0 # integer types
    H5T_FLOAT = 1 # floating-point types
    H5T_TIME = 2 # date and time types
    H5T_STRING = 3 # character string types
    H5T_BITFIELD = 4 # bit field types
    H5T_OPAQUE = 5 # opaque types
    H5T_COMPOUND = 6 # compound types
    H5T_REFERENCE = 7 # reference types
    H5T_ENUM = 8 # enumeration types
    H5T_VLEN = 9 # variable-length types
    H5T_ARRAY = 10 # array types
    H5T_NCLASSES # this must be last

  # Native types
  cdef enum:
    H5T_C_S1
    H5T_NATIVE_B8
    H5T_NATIVE_CHAR
    H5T_NATIVE_SCHAR
    H5T_NATIVE_UCHAR
    H5T_NATIVE_SHORT
    H5T_NATIVE_USHORT
    H5T_NATIVE_INT
    H5T_NATIVE_UINT
    H5T_NATIVE_LONG
    H5T_NATIVE_ULONG
    H5T_NATIVE_LLONG
    H5T_NATIVE_ULLONG
    H5T_NATIVE_FLOAT
    H5T_NATIVE_DOUBLE
    H5T_NATIVE_LDOUBLE

  # "Standard" types
  cdef enum:
    H5T_STD_I8LE
    H5T_STD_I16LE
    H5T_STD_I32LE
    H5T_STD_I64LE
    H5T_STD_U8LE
    H5T_STD_U16LE
    H5T_STD_U32LE
    H5T_STD_U64LE
    H5T_STD_B8LE
    H5T_STD_B16LE
    H5T_STD_B32LE
    H5T_STD_B64LE
    H5T_IEEE_F32LE
    H5T_IEEE_F64LE
    H5T_STD_I8BE
    H5T_STD_I16BE
    H5T_STD_I32BE
    H5T_STD_I64BE
    H5T_STD_U8BE
    H5T_STD_U16BE
    H5T_STD_U32BE
    H5T_STD_U64BE
    H5T_STD_B8BE
    H5T_STD_B16BE
    H5T_STD_B32BE
    H5T_STD_B64BE
    H5T_IEEE_F32BE
    H5T_IEEE_F64BE

  # Types which are particular to UNIX (for Time types)
  cdef enum:
    H5T_UNIX_D32LE
    H5T_UNIX_D64LE
    H5T_UNIX_D32BE
    H5T_UNIX_D64BE

  # The order to retrieve atomic native datatype
  cdef enum H5T_direction_t:
    H5T_DIR_DEFAULT = 0 # default direction is inscendent
    H5T_DIR_ASCEND = 1 # in inscendent order
    H5T_DIR_DESCEND = 2 # in descendent order

  # Codes for defining selections
  cdef enum H5S_seloper_t:
    H5S_SELECT_NOOP = -1
    H5S_SELECT_SET = 0
    H5S_SELECT_OR
    H5S_SELECT_AND
    H5S_SELECT_XOR
    H5S_SELECT_NOTB
    H5S_SELECT_NOTA
    H5S_SELECT_APPEND
    H5S_SELECT_PREPEND
    H5S_SELECT_INVALID # Must be the last one

  # Character set to use for text strings
  cdef enum H5T_cset_t:
    H5T_CSET_ERROR = -1 # error
    H5T_CSET_ASCII = 0 # US ASCII
    H5T_CSET_UTF8 = 1 # UTF-8 Unicode encoding
    H5T_CSET_RESERVED_2 = 2
    H5T_CSET_RESERVED_3 = 3
    H5T_CSET_RESERVED_4 = 4
    H5T_CSET_RESERVED_5 = 5
    H5T_CSET_RESERVED_6 = 6
    H5T_CSET_RESERVED_7 = 7
    H5T_CSET_RESERVED_8 = 8
    H5T_CSET_RESERVED_9 = 9
    H5T_CSET_RESERVED_10 = 10
    H5T_CSET_RESERVED_11 = 11
    H5T_CSET_RESERVED_12 = 12
    H5T_CSET_RESERVED_13 = 13
    H5T_CSET_RESERVED_14 = 14
    H5T_CSET_RESERVED_15 = 15

  # Error stack traversal direction
  cdef enum H5E_direction_t:
    H5E_WALK_UPWARD = 0 # begin deep, end at API function
    H5E_WALK_DOWNWARD = 1 # begin at API function, end deep

  cdef enum H5E_type_t:
    H5E_MAJOR
    H5E_MINOR

  ctypedef struct H5E_error_t:
    hid_t cls_id # class ID
    hid_t maj_num # major error ID
    hid_t min_num # minor error number
    unsigned line # line in file where error occurs
    const_char *func_name # function in which error occurred
    const_char *file_name # file in which error occurred
    const_char *desc # optional supplied description

  ctypedef herr_t (*H5E_walk_t)(unsigned n, H5E_error_t *err, void *data)
  ctypedef herr_t (*H5E_auto_t)(hid_t estack, void *data)

  #------------------------------------------------------------------

  # HDF5 API

  # Version functions
  herr_t H5get_libversion(unsigned *majnum, unsigned *minnum,
                          unsigned *relnum )
  herr_t H5check_version(unsigned majnum, unsigned minnum,
                         unsigned relnum )

  # Operations with files
  hid_t H5Fcreate(char *filename, unsigned int flags,
                   hid_t create_plist, hid_t access_plist)
  hid_t H5Fopen(char *name, unsigned flags, hid_t access_id)
  herr_t H5Fclose (hid_t file_id)
  htri_t H5Fis_hdf5(char *name)
  herr_t H5Fflush(hid_t object_id, H5F_scope_t scope)
  herr_t H5Fget_vfd_handle(hid_t file_id, hid_t fapl_id, void **file_handle)
  ssize_t H5Fget_file_image(hid_t file_id, void *buf_ptr, size_t buf_len)
  herr_t H5Fget_filesize(hid_t file_id, hsize_t *size)
  hid_t H5Fget_create_plist(hid_t file_id)

  # Operations with groups
  hid_t H5Gcreate(hid_t loc_id, char *name, hid_t lcpl_id, hid_t gcpl_id,
                   hid_t gapl_id)
  hid_t H5Gopen(hid_t loc_id, char *name, hid_t gapl_id)
  herr_t H5Gclose(hid_t group_id)

  # Operations with links
  herr_t H5Ldelete(hid_t file_id, char *name, hid_t lapl_id)
  herr_t H5Lmove(hid_t src_loc_id, char *src_name,
                  hid_t dst_loc_id, char *dst_name, hid_t lcpl, hid_t lap)

  # For dealing with datasets
  hid_t H5Dopen(hid_t file_id, char *name, hid_t dapl_id)
  herr_t H5Dclose(hid_t dset_id)
  herr_t H5Dread(hid_t dset_id, hid_t mem_type_id, hid_t mem_space_id,
                 hid_t file_space_id, hid_t plist_id, void *buf)
  herr_t H5Dwrite(hid_t dset_id, hid_t mem_type_id, hid_t mem_space_id,
                  hid_t file_space_id, hid_t plist_id, void *buf)
  hid_t H5Dget_type(hid_t dset_id)
  hid_t H5Dget_space(hid_t dset_id)
  herr_t H5Dvlen_reclaim(hid_t type_id, hid_t space_id, hid_t plist_id,
                         void *buf)
  hid_t H5Dget_create_plist(hid_t dataset_id)
  hsize_t H5Dget_storage_size(hid_t dataset_id)
  herr_t H5Dvlen_get_buf_size(hid_t dataset_id, hid_t type_id, hid_t space_id,
                              hsize_t *size)

  # Functions for dealing with dataspaces
  hid_t H5Screate_simple(int rank, hsize_t dims[], hsize_t maxdims[])
  int H5Sget_simple_extent_ndims(hid_t space_id)
  int H5Sget_simple_extent_dims(hid_t space_id, hsize_t dims[],
                                hsize_t maxdims[])
  herr_t H5Sselect_all(hid_t spaceid)
  herr_t H5Sselect_hyperslab(hid_t space_id, H5S_seloper_t op,
                             hsize_t start[], hsize_t _stride[],
                             hsize_t count[], hsize_t _block[])
  herr_t H5Sselect_elements(hid_t space_id, H5S_seloper_t op,
                            size_t num_elements, hsize_t *coord)
  herr_t H5Sclose(hid_t space_id)


  # Functions for dealing with datatypes
  H5T_class_t H5Tget_class(hid_t type_id)
  hid_t H5Tget_super(hid_t type)
  H5T_sign_t H5Tget_sign(hid_t type_id)
  H5T_order_t H5Tget_order(hid_t type_id)
  size_t H5Tget_size(hid_t type_id)
  herr_t H5Tset_size(hid_t type_id, size_t size)
  size_t H5Tget_precision(hid_t dtype_id)
  herr_t H5Tset_precision(hid_t type_id, size_t prec)
  hid_t H5Tcreate(H5T_class_t type, size_t size)
  hid_t H5Tvlen_create(hid_t base_type_id)
  hid_t H5Tcopy(hid_t type_id)
  herr_t H5Tclose(hid_t type_id)

  # Operations defined on string data types
  htri_t H5Tis_variable_str(hid_t dtype_id)

  # Operations for compound data types
  int H5Tget_nmembers(hid_t type_id)
  char *H5Tget_member_name(hid_t type_id, unsigned membno)
  hid_t H5Tget_member_type(hid_t type_id, unsigned membno)
  hid_t H5Tget_native_type(hid_t type_id, H5T_direction_t direction)
  herr_t H5Tget_member_value(hid_t type_id, int membno, void *value)
  int H5Tget_offset(hid_t type_id)
  herr_t H5Tinsert(hid_t parent_id, char *name, size_t offset,
                   hid_t member_id)
  herr_t H5Tpack(hid_t type_id)

  # Operations for enumerated data types
  hid_t H5Tenum_create(hid_t base_id)
  herr_t H5Tenum_insert(hid_t type, char *name, void *value)

  # Operations for array data types
  hid_t H5Tarray_create(hid_t base_id, int ndims, hsize_t dims[])
  int H5Tget_array_ndims(hid_t type_id)
  int H5Tget_array_dims(hid_t type_id, hsize_t dims[])

  # Operations with attributes
  herr_t H5Adelete(hid_t loc_id, char *name)
  int H5Aget_num_attrs(hid_t loc_id)
  size_t H5Aget_name(hid_t attr_id, size_t buf_size, char *buf)
  hid_t H5Aopen_idx(hid_t loc_id, unsigned int idx)
  herr_t H5Aread(hid_t attr_id, hid_t mem_type_id, void *buf)
  herr_t H5Aclose(hid_t attr_id)

  # Operations with properties
  hid_t H5Pcreate(hid_t plist_id)
  herr_t H5Pclose(hid_t plist_id)
  herr_t H5Pset_cache(hid_t plist_id, int mdc_nelmts, int rdcc_nelmts,
                      size_t rdcc_nbytes, double rdcc_w0)
  herr_t H5Pset_sieve_buf_size(hid_t fapl_id, hsize_t size)
  H5D_layout_t H5Pget_layout(hid_t plist)
  int H5Pget_chunk(hid_t plist, int max_ndims, hsize_t *dims)

  hid_t H5Pget_driver(hid_t plist_id)
  herr_t H5Pset_fapl_sec2(hid_t fapl_id)
  #herr_t H5Pget_fapl_direct(hid_t fapl_id, size_t *alignment,
  # size_t *block_size, size_t *cbuf_size)
  #herr_t H5Pset_fapl_direct(hid_t fapl_id, size_t alignment,
  # size_t block_size, size_t cbuf_size)
  herr_t H5Pset_fapl_log(hid_t fapl_id, const_char *logfile,
                         unsigned long long flags, size_t buf_size)
  #herr_t H5Pset_fapl_windows(hid_t fapl_id)
  herr_t H5Pset_fapl_stdio(hid_t fapl_id)
  #herr_t H5Pget_fapl_core(hid_t fapl_id, size_t *increment,
  # hbool_t *backing_store)
  herr_t H5Pset_fapl_core(hid_t fapl_id, size_t increment,
                          hbool_t backing_store)
  #herr_t H5Pget_fapl_family(hid_t fapl_id, hsize_t *memb_size,
  # hid_t *memb_fapl_id)
  herr_t H5Pset_fapl_family(hid_t fapl_id, hsize_t memb_size,
                            hid_t memb_fapl_id)
  #herr_t H5Pget_fapl_multi(hid_t fapl_id, H5FD_mem_t *memb_map,
  # hid_t *memb_fapl, const_char **memb_name,
  # haddr_t *memb_addr, hbool_t *relax)
  herr_t H5Pset_fapl_multi(hid_t fapl_id, H5FD_mem_t *memb_map,
                           hid_t *memb_fapl, char **memb_name,
                           haddr_t *memb_addr, hbool_t relax)
  herr_t H5Pset_fapl_split(hid_t fapl_id, const_char *meta_ext,
                           hid_t meta_plist_id, const_char *raw_ext,
                           hid_t raw_plist_id)
  #herr_t H5Pget_fapl_mpio(hid_t fapl_id, MPI_Comm *comm, MPI_Info *info)
  #herr_t H5Pset_fapl_mpio(hid_t fapl_id, MPI_Comm comm, MPI_Info info)

  #herr_t H5Pget_fapl_mpiposix(hid_t fapl_id, MPI_Comm *comm,
  # hbool_t *use_gpfs_hints)
  #herr_t H5Pset_fapl_mpiposix(hid_t fapl_id, MPI_Comm comm,
  # hbool_t use_gpfs_hints)
  herr_t H5Pset_file_image(hid_t fapl_id, void *buf_ptr, size_t buf_len)
  herr_t H5Pget_userblock(hid_t plist, hsize_t *size)
  herr_t H5Pset_userblock(hid_t plist, hsize_t size)

  # Error Handling Interface
  #herr_t H5Eget_auto(hid_t estack_id, H5E_auto_t *func, void** data)
  herr_t H5Eset_auto(hid_t estack_id, H5E_auto_t func, void *data)
  herr_t H5Eprint(hid_t estack_id, FILE *stream)
  herr_t H5Ewalk(hid_t estack_id, H5E_direction_t dir, H5E_walk_t func,
                 void *data)
  #hid_t H5Eget_current_stack(void)
  #herr_t H5Eclose_stack(hid_t estack_id)
  #ssize_t H5Eget_num(hid_t estack_id)
  ssize_t H5Eget_msg(hid_t mesg_id, H5E_type_t* mesg_type, char* mesg,
                     size_t size)
  #herr_t H5Eclose_msg(hid_t mesg_id)
  #ssize_t H5Eget_class_name(hid_t class_id, char* name, size_t size)

# Specific HDF5 functions for PyTables
cdef extern from "H5ATTR.h" nogil:
  herr_t H5ATTRget_attribute(hid_t loc_id, char *attr_name,
                             hid_t type_id, void *data)
  herr_t H5ATTRget_attribute_string(hid_t loc_id, char *attr_name,
                                    char **attr_value, int *cset)
  herr_t H5ATTRget_attribute_vlen_string_array(hid_t loc_id, char *attr_name,
                                               char ***attr_value, int *cset)
  herr_t H5ATTRset_attribute(hid_t obj_id, char *attr_name,
                             hid_t type_id, size_t rank, hsize_t *dims,
                             char *attr_data )
  herr_t H5ATTRset_attribute_string(hid_t loc_id, char *attr_name,
                                    char *attr_data, int cset)
  herr_t H5ATTRfind_attribute(hid_t loc_id, char *attr_name)
  herr_t H5ATTRget_type_ndims(hid_t loc_id, char *attr_name,
                              hid_t *type_id, H5T_class_t *class_id,
                              size_t *type_size, int *rank)
  herr_t H5ATTRget_dims(hid_t loc_id, char *attr_name, hsize_t *dims)


# Functions for operations with ARRAY
cdef extern from "H5ARRAY.h" nogil:
  herr_t H5ARRAYget_ndims(hid_t dataset_id, int *rank)
  herr_t H5ARRAYget_info(hid_t dataset_id, hid_t type_id, hsize_t *dims,
                         hsize_t *maxdims, H5T_class_t *super_class_id,
                         char *byteorder)


# Some utilities
cdef extern from "utils.h" nogil:
  herr_t set_cache_size(hid_t file_id, size_t cache_size)
  int get_objinfo(hid_t loc_id, char *name)
  int get_linkinfo(hid_t loc_id, char *name)
  hsize_t get_len_of_range(hsize_t lo, hsize_t hi, hsize_t step)
  hid_t create_ieee_float16(char *byteorder)
  hid_t create_ieee_complex64(char *byteorder)
  hid_t create_ieee_complex128(char *byteorder)
  herr_t set_order(hid_t type_id, char *byteorder)
  herr_t get_order(hid_t type_id, char *byteorder)
  int is_complex(hid_t type_id)
  herr_t truncate_dset(hid_t dataset_id, int maindim, hsize_t size)
  herr_t pt_H5Pset_fapl_direct(hid_t fapl_id, size_t alignment,
                               size_t block_size, size_t cbuf_size)
  herr_t pt_H5Pset_fapl_windows(hid_t fapl_id)
  herr_t pt_H5Pset_file_image(hid_t fapl_id, void *buf_ptr, size_t buf_len)
  ssize_t pt_H5Fget_file_image(hid_t file_id, void *buf_ptr, size_t buf_len)
  int H5_HAVE_DIRECT_DRIVER, H5_HAVE_WINDOWS_DRIVER, H5_HAVE_IMAGE_FILE


cdef extern from "utils.h":
  object Giterate(hid_t parent_id, hid_t loc_id, char *name)
  object Aiterate(hid_t loc_id)
  object H5UIget_info(hid_t loc_id, char *name, char *byteorder)


# Type conversion routines
cdef extern from "typeconv.h" nogil:
  void conv_float64_timeval32(void *base,
                              unsigned long byteoffset,
                              unsigned long bytestride,
                              long long nrecords,
                              unsigned long nelements,
                              int sense)

# Blosc registration
cdef extern from "blosc_filter.h" nogil:
  int register_blosc(char **version, char **date)
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