Files
xahaud/src
Rome Reginelli f645e42e6e AMMBid: use tecINTERNAL for 'impossible' errors (#4674)
Modify two error cases in AMMBid transactor to return `tecINTERNAL` to
more clearly indicate that these errors should not be possible unless
operating in unforeseen circumstances. It likely indicates a bug.

The log level has been updated to `fatal()` since it indicates a
(potentially network-wide) unexpected condition when either of these
errors occurs.

Details:

The two specific transaction error cases changed are:

- `tecAMM_BALANCE` - In this case, this error (total LP Tokens
  outstanding is lower than the amount to be burned for the bid) is a
  subset of the case where the user doesn't have enough LP Tokens to pay
  for the bid. When this case is reached, the bidder's LP Tokens balance
  has already been checked first. The user's LP Tokens should always be
  a subset of total LP Tokens issued, so this should be impossible.
- `tecINSUFFICIENT_PAYMENT` - In this case, the amount to be refunded as
  a result of the bid is greater than the price paid for the auction
  slot. This should never occur unless something is wrong with the math
  for calculating the refund amount.

Both error cases in question are "defense in depth" measures meant to
protect against making things worse if the code has already reached a
state that is supposed to be impossible, likely due to a bug elsewhere.

Such "shouldn't ever occur" checks should use an error code that
categorically indicates a larger problem. This is similar to how
`tecINVARIANT_FAILED` is a warning sign that something went wrong and
likely could've been worse, but since there isn't an Invariant Check
applying here, `tecINTERNAL` is the appropriate error code.

This is "debatably" a transaction processing change since it could
hypothetically change how transactions are processed if there's a bug we
don't know about.
2025-04-17 20:07:55 +09:00
..
2025-02-01 12:00:35 +01:00
2019-03-18 16:19:24 -07:00

rippled Source

Some of these directories come from entire outside repositories brought in using [git-subtree][]. This means that the source files are inserted directly into the rippled repository. They can be edited and committed just as if they were normal files. [git-subtree]: https://github.com/apenwarr/git-subtree

If you create a commit that contains files both from a subtree, and from the rippled source tree, please use care when designing the commit message, since it will appear in the subtree's individual repository when the changes are pushed back to the upstream. Better yet, do not mix files from subtrees and ripple in the same commit at all.

Source folders:

Folder Upstream Repo Description
beast N/A legacy utility code that was formerly associated with boost::beast
ed25519-donna https://github.com/floodyberry/ed25519-donna Ed25519 digital signatures
ripple N/A Core source code for rippled
secp256k1 https://github.com/bitcoin-core/secp256k1 ECDSA digital signatures using the secp256k1 curve
test N/A Unit tests for rippled

The following dependencies are downloaded and built using ExternalProject (or FetchContent, where possible). Refer to CMakeLists.txt file for details about how these sources are built :

Name Upstream Repo Description
lz4 https://github.com/lz4/lz4 LZ4 lossless compression algorithm
nudb https://github.com/vinniefalco/NuDB Constant-time insert-only key/value database for SSD drives (Less memory usage than RocksDB.)
snappy https://github.com/google/snappy "Snappy" lossless compression algorithm.
soci https://github.com/SOCI/soci Abstraction layer for database access.
sqlite https://www.sqlite.org/src An embedded database engine that writes to simple files.
rocksdb https://github.com/facebook/rocksdb Fast key/value database. (Supports rotational disks better than NuDB.)
protobuf https://github.com/google/protobuf Protocol buffer data interchange format. Only downloaded/built if a suitable version is not found by find_package, or if the local_protobuf option is explicitly set