Man page - bson_iter_init_from_data(3)

Packages contains this manual

Manual

BSON_ITER_INIT_FROM_DATA

SYNOPSIS
PARAMETERS
DESCRIPTION
RETURNS
EXAMPLE
AUTHOR
COPYRIGHT

SYNOPSIS

bool
bson_iter_init_from_data (bson_iter_t *iter, const uint8_t *data, size_t length);

PARAMETERS

•

iter : A bson_iter_t .

•

data : A buffer to initialize with.

•

length : The length of data in bytes.

DESCRIPTION

The bson_iter_init_from_data() function shall initialize iter to iterate upon the buffer data , which must contain a BSON document. Upon initialization, iter is placed before the first element. Callers must call bson_iter_next() , bson_iter_find() , or bson_iter_find_case() to advance to an element.

RETURNS

Returns true if the iter was successfully initialized.

EXAMPLE

static void
print_doc_id (const uint8_t *data, size_t length)
{
bson_iter_t iter;
bson_oid_t oid;
char oidstr[25];

if (bson_iter_init_from_data (&iter, data, length) && bson_iter_find (&iter, "_id") &&
BSON_ITER_HOLDS_OID (&iter)) {
bson_iter_oid (&iter, &oid);
bson_oid_to_string (&oid, oidstr);
printf ("%s\n", oidstr);
} else {
printf ("Document is missing _id.\n");
}
}

AUTHOR

MongoDB, Inc

COPYRIGHT

2009-present, MongoDB, Inc.