Address of the sender, 32 bytes
Write a section of the i
-th parameter to the given location. Return
the number of bytes written or -1
if the parameter does not exist.
The location is assumed to contain enough memory to
write the requested length into.
Get the size of the i
-th parameter to the call. 0-th parameter is
always the original parameter that the method was invoked with,
invoking a contract adds additional parameters to the stack. Returns
-1
if the given parameter does not exist.
Write a section of the policy to the given location. Return the number
of bytes written. The location is assumed to contain enough memory to
write the requested length into.
Write the receive entrypoint name into the given location.
It is assumed that the location contains enough space to write the name.
Get the size of the entrypoint that was named.
Invoker of the top-level transaction, AccountAddress.
Owner of the contract, AccountAddress.
Address of the contract itself, ContractAddress.
Self-balance of the contract, returns the amount
Immediate sender of the message (either contract or account).
Slot time (in milliseconds) from chain meta data
Hash the data using Keccak-256 algorithm. The resulting hash (32 bytes)
is written starting at the output
pointer. The output segment
may overlap with the data segment.
Hash the data using the SHA2-256 algorithm. The resulting hash (32
bytes) is written starting at the output
pointer. The output
segment may overlap with the data segment.
Hash the data using the SHA3-256 algorithm. The resulting hash (32
bytes) is written starting at the output
pointer. The output
segment may overlap with the data segment.
Invoke a host instruction. The arguments are
Add a log item. Return values are
Create an empty entry with the given key. The return value is either
u64::MAX if creating the entry failed because of an iterator lock on
the part of the tree, or else the first bit is 0, and the remaining
bits are an entry identifier that maybe used in subsequent calls.
If an entry at that key already exists it is set to the empty entry.
Delete the entry. Returns one of
Delete a prefix in the tree, that is, delete all parts of the tree that
have the given key as prefix. Returns
Read a part of the entry. The arguments are
entry … entry id returned by state_iterator_next or state_create_entry
start … where to write in Wasm memory
length … length of the data to read
offset … where to start reading in the entry
The return value is
Resize the entry to the given size. Returns
Return the current size of the entry in bytes.
The return value is either
Write a part of the entry. The arguments are
entry … entry id returned by state_iterator_next or state_create_entry
start … where to read from Wasm memory
length … length of the data to read
offset … where to start writing in the entry
The return value is
Construct an iterator over a part of the tree. This locks the part of
the tree that has the given prefix. Locking means that no
deletions or insertions of entries may occur in that subtree.
Returns
Delete the iterator, unlocking the subtree. Returns
Read a section of the key the iterator is currently pointing at. Returns
either
Get the size of the key that the iterator is currently pointing at.
Returns
Return the next entry along the iterator, and advance the iterator.
The return value is
Lookup an entry with the given key. The return value is either
u64::MAX if the entry at the given key does not exist, or else
the first bit of the result is 0, and the remaining bits
are an entry identifier that may be used in subsequent calls.
Upgrade the smart contract module to a provided module.
The only argument is a pointer to 32 bytes for the module reference to
become the new smart contract module of this instance.
A return value of:
Verify an ecdsa over secp256k1 with bitcoin-core implementation.
The public key is expected to be 33 bytes, the signature is expected
to be 64 bytes (serialized in compressed format), and the message
must be 32 bytes. We only allow checking signatures on 32-byte arrays
which are expected to be message hashes.
Verify an ed25519 signature. The public key is expected to be 32 bytes,
the signature is expected to be 64 bytes, and the message may be
variable length.
Write to the return value of the contract. The parameters are