Context¶
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struct caterva_ctx_t¶
Context for caterva arrays that specifies the functions used to manage memory and the compression/decompression parameters used in Blosc.
Configuration parameters¶
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struct caterva_config_t¶
Configuration parameters used to create a caterva context.
Public Members
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void *(*alloc)(size_t)¶
The memory allocation function used internally.
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void (*free)(void*)¶
The memory release function used internally.
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uint8_t compcodec¶
Defines the codec used in compression.
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uint8_t compmeta¶
The metadata for the compressor codec.
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uint8_t complevel¶
Determines the compression level used in Blosc.
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int32_t splitmode¶
Whether the blocks should be split or not.
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int usedict¶
Indicates whether a dictionary is used to compress data or not.
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int16_t nthreads¶
Determines the maximum number of threads that can be used.
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uint8_t filters[BLOSC2_MAX_FILTERS]¶
Defines the filters used in compression.
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uint8_t filtersmeta[BLOSC2_MAX_FILTERS]¶
Indicates the meta filters used in Blosc.
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blosc2_prefilter_fn prefilter¶
Defines the function that is applied to the data before compressing it.
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blosc2_prefilter_params *pparams¶
Indicates the parameters of the prefilter function.
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blosc2_btune *udbtune¶
Indicates user-defined parameters for btune.
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void *(*alloc)(size_t)¶
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static const caterva_config_t CATERVA_CONFIG_DEFAULTS¶
The default configuration parameters used in caterva.
Creation¶
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int caterva_ctx_new(caterva_config_t *cfg, caterva_ctx_t **ctx)¶
Create a context for caterva.
- Parameters
cfg – The configuration parameters needed for the context creation.
ctx – The memory pointer where the context will be created.
- Returns
An error code.
Destruction¶
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int caterva_ctx_free(caterva_ctx_t **ctx)¶
Free a context.
- Parameters
ctx – The The context to be freed.
- Returns
An error code.