NAME

src/dynpmc/gdbmhash.pmc - GDBM PMC

DESCRIPTION

This is an interface to the GNU dbm library.

On inserted and fetch, keys are converted to STRINGs.

PMC insert values are converted to STRINGs.

get_integer_keyed() and get_number_keyed() probably don't make any sense, as integers usually can't be converted.

When a PMC is requested, a String PMC is returned.

static STRING *make_hash_key(PARROT_INTERP, PMC *key): Returns a Parrot string for *key.
void class_init(): Class initialization. GDBMHash is a dynamic PMC, meaning that a dynamically loadable module is created. On Unix-like systems this is a shared library. When it is available, the shared library has linked in the library 'gdbm'.; On WIN32 the relevant library seems to be called 'gdbm3'. So we do a bit of cheating here, and load it during class initialization.
VOID set_string_native(STRING *value): Open a or create a new dbm file.
INTVAL get_integer(): Returns the number of pairs in the hash. A uninitialized GDBMHash returns 0.
INTVAL get_bool(): Returns true if the hash size is not zero.
void set_string_keyed(PMC *key, STRING *value)
STRING *get_string_keyed(PMC *key): Returns the string value for the element at *key.
void set_pmc_keyed(PMC *key, PMC *value): Convert value to a string and set the string for the key.
PMC *get_pmc_keyed(PMC *key): Returns the PMC value for the element at *key.
void set_integer_keyed(PMC *key, INTVAL value): Convert value to a string and set the string for the key.
void set_number_keyed(PMC *key, FLOATVAL value): Convert value to a string and set the string for the key.
INTVAL exists_keyed(PMC *key): Returns whether a key *key exists in the hash.
void delete_keyed(PMC *key): Deletes the element associated with *key.

parrotcode: GDBM PMC
Contents \| Dynamic PMCs