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emit blocks.

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This commit is contained in:
Christopher Jeffrey 2014-09-22 18:21:08 -07:00
parent f1fde6ee40
commit 4038258347
2 changed files with 38 additions and 18 deletions
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22
lib/bitcoind.js
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@ -128,12 +128,19 @@ Bitcoin.prototype.start = function(callback) {
}
}, 1000);
this.pollInterval = 300;
(function next() {
bitcoindjs.pollBlocks(function(err, blocks) {
blocks.forEach(function(block) {
if (err) return setTimeout(next, self.pollInterval);
utils.forEach(blocks, function(block, nextBlock) {
self.emit('block', block);
setImmediate(function() {
nextBlock();
});
}, function() {
setTimeout(next, self.pollInterval);
});
setTimeout(next, 1000);
});
})();
@ -218,6 +225,17 @@ utils.revHex = function revHex(s) {
return r;
};
utils.forEach = function(obj, iter, done) {
var pending = obj.length;
if (!pending) return done();
var next = function() {
if (!--pending) done();
};
obj.forEach(function(item) {
iter(item, next);
});
};
/**
* Expose
*/

34
src/bitcoindjs.cc
View File

@ -238,9 +238,9 @@ struct async_tx_data {
struct async_poll_blocks_data {
std::string err_msg;
uint256 poll_last_hash;
CBlockIndex *poll_last_index;
CBlockIndex *poll_prev_index;
uint256 poll_top_hash;
CBlockIndex *poll_top_index;
CBlockIndex *poll_saved_index;
Persistent<Array> result_array;
Persistent<Function> callback;
};
@ -1114,9 +1114,9 @@ NAN_METHOD(PollBlocks) {
Local<Function> callback = Local<Function>::Cast(args[0]);
async_poll_blocks_data *data = new async_poll_blocks_data();
data->poll_last_hash = 0;
data->poll_last_index = NULL;
data->poll_prev_index = NULL;
data->poll_top_hash = 0;
data->poll_top_index = NULL;
data->poll_saved_index = NULL;
data->err_msg = std::string("");
data->callback = Persistent<Function>::New(callback);
@ -1136,17 +1136,19 @@ static void
async_poll_blocks(uv_work_t *req) {
async_poll_blocks_data* data = static_cast<async_poll_blocks_data*>(req->data);
data->poll_prev_index = data->poll_last_index;
data->poll_saved_index = data->poll_top_index;
CBlockIndex *cur_index;
while ((cur_index = chainActive.Tip())) {
uint256 cur_hash = cur_index->GetBlockHash();
if (cur_hash != data->poll_last_hash) {
data->poll_last_hash = cur_hash;
data->poll_last_index = cur_index;
sleep(1);
} else {
if (cur_hash != data->poll_top_hash) {
data->poll_top_hash = cur_hash;
data->poll_top_index = cur_index;
break;
} else {
// 100 milliseconds
useconds_t usec = 100 * 1000;
usleep(usec);
}
}
}
@ -1169,12 +1171,12 @@ async_poll_blocks_after(uv_work_t *req) {
const unsigned argc = 2;
Local<Array> blocks = NanNew<Array>();
CBlockIndex *pnext = data->poll_prev_index;
CBlockIndex *pnext = data->poll_saved_index;
if (!pnext) {
if (data->poll_last_index) {
if (data->poll_top_index) {
CBlock block;
if (ReadBlockFromDisk(block, data->poll_last_index)) {
if (ReadBlockFromDisk(block, data->poll_top_index)) {
blocks->Set(0, NanNew<String>(block.GetHash().GetHex().c_str()));
}
}
@ -1186,7 +1188,7 @@ async_poll_blocks_after(uv_work_t *req) {
blocks->Set(i, NanNew<String>(block.GetHash().GetHex().c_str()));
i++;
}
if (pnext == data->poll_last_index) break;
if (pnext == data->poll_top_index) break;
} while ((pnext = chainActive.Next((const CBlockIndex *)pnext)));
}