New return status datatype for returning data and propagating errors

1984not-GmbH / molch

An implementation of the axolotl ratchet based on libsodium.

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New return status datatype for returning data and propagating errors #48

Closed FSMaxB closed 8 years ago

FSMaxB commented 8 years ago

This implements a datatype that can propagate errors and be used to return a status. Based on the idea of #7.

The idea is that every function returns a struct that contains the current status and optionally data via a data pointer and/or a stack of heap allocated error messages. This allows building a trace.

Helper macros are provided that work with the current concept of goto cleanup; and status variables. Those are throw, on_error and throw_on_error.

FSMaxB commented 8 years ago

TODO:

[x] conversation
[x] header
[x] master-keys
[x] molch
[x] packet
[x] spiced-random
[x] user-store
[x] test/packet-test-lib
[x] prekey-store
[x] conversation-store
[x] ratchet
[x] key-derivation
[x] diffie-hellman
[x] endianness
[x] header-and-message-keystore
[x] test/common
[ ] JSON import and export functions
buffer??

FSMaxB commented 8 years ago

The ARMv7 failures are related to a problem in my build machine, it's fixed now.