rd_tsv • A write timestamp wr_tsv • A transaction TX1 with timestamp tsv • Functions begin(), commit(), and rollback() • Facility for TX1 to "acquire" E • Function update() to update E • Function transactions, and each thread owns its transactions • A transaction’s key operations (begin, acquire, commit, rollback) can only be performed by the owning thread • A transaction manger acquires lockable members of the update group were acquired] [Apply write operations to the members of the update group] [Commit the transaction, loop back to the top, get new work] else [Roll back the transaction, loop back

Exception Safety Guarantee Invariants are preserved No resources are leaked No state change (commit-or-rollback) Not always possible (e.g. sockets, streams, etc.) No-Throw Guarantee The operation Exception Safety Guarantee Invariants are preserved No resources are leaked No state change (commit-or-rollback) Not always possible No-Throw Guarantee The operation cannot fail 1 2 3 4 Exception Safety Guarantee Invariants are preserved No resources are leaked No state change (commit-or-rollback) Not always possible No-Throw Guarantee The operation cannot fail 1 2 3 4

source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is a bad practice and not allowed by Conan get(self, "https://github.com/conan-io/libhello/archive/refs/heads/main source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is strongly discouraged, unsupported by Conan and likely to cause issues get(self, "https://github immutable tag or a specific commit to guarantee the correct behavior. Using the HEAD of the repository is not allowed and can cause undefined behavior and breakages. To checkout a commit or tag in the repository

source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is a bad practice and not allowed by Conan get(self, "https://github.com/conan-io/libhello/archive/refs/heads/main source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is strongly discouraged, unsupported by Conan and likely to cause issues get(self, "https://github immutable tag or a specific commit to guarantee the correct behavior. Using the HEAD of the repository is not allowed and can cause undefined behavior and breakages. To checkout a commit or tag in the repository

source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is a bad practice and not allowed by Conan get(self, "https://github.com/conan-io/libhello/archive/refs/heads/main source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is strongly discouraged, unsupported by Conan and likely to cause issues get(self, "https://github immutable tag or a specific commit to guarantee the correct behavior. Using the HEAD of the repository is not allowed and can cause undefined behavior and breakages. To checkout a commit or tag in the repository

source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is a bad practice and not allowed by Conan get(self, "https://github.com/conan-io/libhello/archive/refs/heads/main source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is strongly discouraged, unsupported by Conan and likely to cause issues get(self, "https://github immutable tag or a specific commit to guarantee the correct behavior. Using the HEAD of the repository is not allowed and can cause undefined behavior and breakages. To checkout a commit or tag in the repository

source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is a bad practice and not allowed by Conan get(self, "https://github.com/conan-io/libhello/archive/refs/heads/main source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is strongly discouraged, unsupported by Conan and likely to cause issues get(self, "https://github immutable tag or a specific commit to guarantee the correct behavior. Using the HEAD of the repository is not allowed and can cause undefined behavior and breakages. To checkout a commit or tag in the repository

source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is a bad practice and not allowed by Conan get(self, "https://github.com/conan-io/libhello/archive/refs/heads/main source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is strongly discouraged, unsupported by Conan and likely to cause issues get(self, "https://github immutable tag or a specific commit to guarantee the correct behavior. Using the HEAD of the repository is not allowed and can cause undefined behavior and breakages. To checkout a commit or tag in the repository

source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is a bad practice and not allowed by Conan get(self, "https://github.com/conan-io/libhello/archive/refs/heads/main source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is strongly discouraged, unsupported by Conan and likely to cause issues get(self, "https://github immutable tag or a specific commit to guarantee the correct behavior. Using the HEAD of the repository is not allowed and can cause undefined behavior and breakages. To checkout a commit or tag in the repository

source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is a bad practice and not allowed by Conan get(self, "https://github.com/conan-io/libhello/archive/refs/heads/main source(self): # Please, be aware that using the head of the branch instead of an immutable tag # or commit is strongly discouraged, unsupported by Conan and likely to cause issues get(self, "https://github immutable tag or a specific commit to guarantee the correct behavior. Using the HEAD of the repository is not allowed and can cause undefined behavior and breakages. To checkout a commit or tag in the repository