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heimbase(3) Heimdal base library heimbase(3) NAME heimbase - Heimbase - Registers a DB type for use with heim_db_create(). SYNOPSIS Detailed Description Registers a DB type for use with heim_db_create(). heim_db_register Parameters dbtype Name of DB type data Private data argument to the dbtype's openf method plugin Structure with DB type methods (function pointers) Backends that provide begin/commit/rollback methods must provide ACID semantics. The registered DB type will have ACID semantics for backends that do not provide begin/commit/rollback methods but do provide lock/unlock and rdjournal/wrjournal methods (using a replay log journalling scheme). If the registered DB type does not natively provide read vs. write transaction isolation but does provide a lock method then the DB will provide read/write transaction isolation. Returns ENOMEM on failure, else 0. Open a database of the given dbtype. Database type names can be composed of one or more pseudo-DB types and one concrete DB type joined with a '+' between each. For example: 'transaction+bdb' might be a Berkeley DB with a layer above that provides transactions. Options may be provided via a dict (an associative array). Existing options include: • • • • • • Parameters dbtype Name of DB type dbname Name of DB (likely a file path) options Options dict db Output open DB handle error Output error object Returns a DB handle Clone (duplicate) an open DB handle. This is useful for multi-threaded applications. Applications must synchronize access to any given DB handle. Returns EBUSY if there is an open transaction for the input db. Parameters db Open DB handle error Output error object Returns a DB handle Open a transaction on the given db. Parameters db Open DB handle error Output error object Returns 0 on success, system error otherwise Commit an open transaction on the given db. Parameters db Open DB handle error Output error object Returns 0 on success, system error otherwise Rollback an open transaction on the given db. Parameters db Open DB handle error Output error object Returns 0 on success, system error otherwise Get type ID of heim_db_t objects. Lookup a key's value in the DB. Returns 0 on success, -1 if the key does not exist in the DB, or a system error number on failure. Parameters db Open DB handle key Key error Output error object Returns the value (retained), if there is one for the given key Set a key's value in the DB. Parameters db Open DB handle key Key value Value (if NULL the key will be deleted, but empty is OK) error Output error object Returns 0 on success, system error otherwise Delete a key and its value from the DB Parameters db Open DB handle key Key error Output error object Returns 0 on success, system error otherwise Iterate a callback function over keys and values from a DB. Parameters db Open DB handle iter_data Callback function's private data iter_f Callback function, called once per-key/value pair error Output error object Get a node in a heim_object tree by path Parameters ptr tree error error (output) ap NULL-terminated va_list of heim_object_ts that form a path Returns object (not retained) if found Get a node in a tree by path, with retained reference Parameters ptr tree error error (output) ap NULL-terminated va_list of heim_object_ts that form a path Returns retained object if found Get a node in a tree by path Parameters ptr tree error error (output) ... NULL-terminated va_list of heim_object_ts that form a path Returns object (not retained) if found Get a node in a tree by path, with retained reference Parameters ptr tree error error (output) ... NULL-terminated va_list of heim_object_ts that form a path Returns retained object if found Create a path in a heim_object_t tree Parameters ptr the tree size the size of the heim_dict_t nodes to be created leaf leaf node to be added, if any error error (output) ap NULL-terminated of path component objects Create a path of heim_dict_t interior nodes in a given heim_object_t tree, as necessary, and set/replace a leaf, if given (if leaf is NULL then the leaf is not deleted). Returns 0 on success, else a system error Create a path in a heim_object_t tree Parameters ptr the tree size the size of the heim_dict_t nodes to be created leaf leaf node to be added, if any error error (output) ... NULL-terminated list of path component objects Create a path of heim_dict_t interior nodes in a given heim_object_t tree, as necessary, and set/replace a leaf, if given (if leaf is NULL then the leaf is not deleted). Returns 0 on success, else a system error Delete leaf node named by a path in a heim_object_t tree Parameters ptr the tree error error (output) ap NULL-terminated list of path component objects Dump a heimbase object to stderr (useful from the debugger!) Parameters obj object to dump using JSON or JSON-like format Author Generated automatically by Doxygen for Heimdal base library from the source code. Version 7.8.0 Tue Nov 15 2022 heimbase(3)
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