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Implemented contract read requests. (#98)

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This commit is contained in:
Ravin Perera
2020-06-19 21:52:03 +05:30
committed by GitHub
parent 04e230c82e
commit 817ccd6a88
17 changed files with 760 additions and 587 deletions
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42
src/cons/cons.cpp
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@@ -56,6 +56,9 @@ namespace cons
ctx.stage_time = conf::cfg.roundtime / 5;
ctx.stage_reset_wait_threshold = conf::cfg.roundtime / 10;
ctx.contract_ctx.args.state_dir = conf::ctx.state_rw_dir;
ctx.contract_ctx.args.readonly = false;
init_success = true;
return 0;
}
@@ -65,6 +68,8 @@ namespace cons
*/
void deinit()
{
// Stop the contract if running.
sc::stop(ctx.contract_ctx);
}
int run_consensus()
@@ -757,18 +762,25 @@ namespace cons
// Send any output from the previous consensus round to locally connected users.
dispatch_user_outputs(cons_prop);
sc::contract_bufmap_t useriobufmap;
// Execute the contract
{
sc::contract_execution_args &args = ctx.contract_ctx.args;
args.time = cons_prop.time;
sc::contract_iobuf_pair nplbufpair;
nplbufpair.inputs.splice(nplbufpair.inputs.end(), ctx.candidate_npl_messages);
// Populate npl bufs and user bufs.
args.nplbufs.inputs.splice(args.nplbufs.inputs.end(), ctx.candidate_npl_messages);
feed_user_inputs_to_contract_bufmap(args.userbufs, cons_prop);
// TODO: Do something usefull with HP<-->SC channel.
feed_user_inputs_to_contract_bufmap(useriobufmap, cons_prop);
if (sc::execute_contract(ctx.contract_ctx) == -1)
return -1;
if (run_contract_binary(cons_prop.time, useriobufmap, nplbufpair) == -1)
return -1;
ctx.state = args.post_execution_state_hash;
extract_user_outputs_from_contract_bufmap(args.userbufs);
broadcast_npl_output(args.nplbufs.output);
extract_user_outputs_from_contract_bufmap(useriobufmap);
broadcast_npl_output(nplbufpair.output);
sc::clear_args(args);
}
return 0;
}
@@ -895,20 +907,6 @@ namespace cons
}
}
/**
* Executes the smart contract with the specified time and provided I/O buf maps.
* @param time_now The time that must be passed on to the contract.
* @param useriobufmap The contract bufmap which holds user I/O buffers.
*/
int run_contract_binary(const int64_t time_now, sc::contract_bufmap_t &useriobufmap, sc::contract_iobuf_pair &nplbufpair)
{
// todo:implement exchange of hpsc bufs
sc::contract_iobuf_pair hpscbufpair;
return sc::exec_contract(
sc::contract_exec_args(time_now, useriobufmap, nplbufpair, hpscbufpair),
ctx.state);
}
/**
* Increment voting table counter.
* @param counter The counter map in which a vote should be incremented.