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idl-compiler: Add pos and rollback to serialize vector

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This adds the ability to store a position of a serialized vector and to
rollback to that stored position afterwards.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
Message-Id: <1456041750-1505-3-git-send-email-amnon@scylladb.com>
This commit is contained in:
Amnon Heiman
2016-02-21 10:02:30 +02:00
committed by Tomasz Grabiec
parent ea97e07ed7
commit f461ebc411
1 changed files with 9 additions and 0 deletions
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9
idl-compiler.py
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@@ -338,6 +338,15 @@ def vector_add_method(current, base_state):
after_${basestate}__$name end_$name() && {
_size.set(_out, _count);
return { _out, std::move(_state) };
}
vector_position pos() const {
return vector_position{_out.pos(), _count};
}
void rollback(const vector_position& vp) {
_out.retract(vp.pos);
_count = vp.count;
}""").substitute({'name': current["name"], 'basestate' : base_state})
def add_param_writer_basic_type(name, base_state, typ, var_type = "", var_index = None, root_node = False):