39 lines
1.7 KiB
C
39 lines
1.7 KiB
C
/**
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* a datastore implementation that stores all
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* objects in a 2 level directory structure in
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* the local file system, regardless of the
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* hierarchy of the keys. Modeled after go-ds-flatfs
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*/
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/**
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* Given a filename (usually a long hash), derive a subdirectory name
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* @param datastore_path the path to the datastore
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* @param proposed_filename the filename to use
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* @param derived_path the complete pathname to the directory that should contain the proposed_filename
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* @param max_derived_path_length the maximum memory allocated for derived_path
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* @returns true(1) on success
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*/
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int ipfs_flatfs_get_directory(const char* datastore_path, const char* proposed_filename,
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char* derived_path, size_t max_derived_path_length);
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/**
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* Given the proposed filename, return the acutal filename on the disk (clean the name and add .data suffix)
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* @param proposed_filename the start
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* @param derived_filename the results
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* @param max_derived_filename_length the buffer size
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* @returns true(1) on success
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*/
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int ipfs_flatfs_get_filename(const char* proposed_filename, char* derived_filename, size_t max_derived_filename_length);
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/**
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* Combines the datastore path, the directory (derived from the filename itself), the proposed
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* filename, and the suffix (.data) to build a complete filename on the disk
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* @param datastore_path where the datastore is
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* @param proposed_filename the filename we want to use
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* @param derived_full_filename where the results will be put
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* @param max_derived_filename_length the size of memory allocated for "derived_full_filename"
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* @returns true(1) on success
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*/
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int ipfs_flatfs_get_full_filename(const char* datastore_path, const char* proposed_filename,
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char* derived_full_filename, size_t max_derived_filename_length);
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