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function o(e){for(var t=e,n=e;n<a._selections.length&&a._selections[n].priority;n++)t=n;var r=a._selections[e];a._selections[e]=a._selections[t],a._selections[t]=r}function s(n){if(e.requests.length>=c)return!0;for(var i=r(),s=0;s<a._selections.length;s++){var u,f=a._selections[s];if("rarest"===a.strategy)for(var d=f.from+f.offset,h=f.to,l=h-d+1,p={},m=0,g=t(d,h,p,i);l>m&&(u=a._rarityMap.getRarestPiece(g),!(0>u));){for(;a._request(e,u,a._critical[u]||n););if(!(e.requests.length<c))return f.priority&&o(s),!0;p[u]=!0,m++}else for(u=f.from+f.offset;u<=f.to;u++)if(e.peerPieces.get(u)&&i(u)){for(;a._request(e,u,a._critical[u]||n););if(!(e.requests.length<c))return f.priority&&o(s),!0}}return!1}var a=this;if(!e.peerChoking){if(!e.downloaded)return n();var u=i(e,V);if(!(e.requests.length>=u)){var c=i(e,G);s(!1)||s(!0)}}},o.prototype._rechoke=function(){function e(e,t){return e.downloadSpeed!==t.downloadSpeed?t.downloadSpeed-e.downloadSpeed:e.uploadSpeed!==t.uploadSpeed?t.uploadSpeed-e.uploadSpeed:e.wire.amChoking!==t.wire.amChoking?e.wire.amChoking?1:-1:e.salt-t.salt}var t=this;if(t.ready){t._rechokeOptimisticTime>0?t._rechokeOptimisticTime-=1:t._rechokeOptimisticWire=null;var n=[];t.wires.forEach(function(e){e.isSeeder||e===t._rechokeOptimisticWire||n.push({wire:e,downloadSpeed:e.downloadSpeed(),uploadSpeed:e.uploadSpeed(),salt:Math.random(),isChoked:!0})}),n.sort(e);for(var r=0,o=0;o<n.length&&r<t._rechokeNumSlots;++o)n[o].isChoked=!1,n[o].wire.peerInterested&&(r+=1);if(!t._rechokeOptimisticWire&&o<n.length&&t._rechokeNumSlots){var i=n.slice(o).filter(function(e){return e.wire.peerInterested}),s=i[a(i.length)];s&&(s.isChoked=!1,t._rechokeOptimisticWire=s.wire,t._rechokeOptimisticTime=K)}n.forEach(function(e){e.wire.amChoking!==e.isChoked&&(e.isChoked?e.wire.choke():e.wire.unchoke())})}},o.prototype._hotswap=function(e,t){var n=this,r=e.downloadSpeed();if(r<C.BLOCK_LENGTH)return!1;if(!n._reservations[t])return!1;var o=n._reservations[t];if(!o)return!1;var i,s,a=1/0;for(s=0;s<o.length;s++){var u=o[s];if(u&&u!==e){var c=u.downloadSpeed();c>=Y||2*c>r||c>a||(i=u,a=c)}}if(!i)return!1;for(s=0;s<o.length;s++)o[s]===i&&(o[s]=null);for(s=0;s<i.requests.length;s++){var f=i.requests[s];f.piece===t&&n.pieces[t].cancel(f.offset/C.BLOCK_LENGTH|0)}return n.emit("hotswap",i,e,t),!0},o.prototype._request=function(e,t,r){function o(){n.nextTick(function(){a._update()})}var a=this,u=e.requests.length,c="webSeed"===e.type;if(a.bitfield.get(t))return!1;var f=c?Math.min(s(e,G,a.pieceLength),a.maxWebConns):i(e,G);if(u>=f)return!1;var d=a.pieces[t],h=c?d.reserveRemaining():d.reserve();if(-1===h&&r&&a._hotswap(e,t)&&(h=c?d.reserveRemaining():d.reserve()),-1===h)return!1;var l=a._reservations[t];l||(l=a._reservations[t]=[]);var p=l.indexOf(null);-1===p&&(p=l.length),l[p]=e;var m=d.chunkOffset(h),g=c?d.chunkLengthRemaining(h):d.chunkLength(h);return e.request(t,m,g,function y(n,r){if(!a.ready)return a.once("ready",function(){y(n,r)});if(l[p]===e&&(l[p]=null),d!==a.pieces[t])return o();if(n)return a._debug("error getting piece %s (offset: %s length: %s) from %s: %s",t,m,g,e.remoteAddress+":"+e.remotePort,n.message),c?d.cancelRemaining(h):d.cancel(h),void o();if(a._debug("got piece %s (offset: %s length: %s) from %s",t,m,g,e.remoteAddress+":"+e.remotePort),!d.set(h,r,e))return o();var i=d.flush();U(i,function(e){if(!a.destroyed){if(e===a._hashes[t]){if(!a.pieces[t])return;a._debug("piece verified %s",t),a.pieces[t]=null,a._reservations[t]=null,a.bitfield.set(t,!0),a.store.put(t,i),a.wires.forEach(function(e){e.have(t)}),a._checkDone()&&!a.destroyed&&a.discovery.complete()}else a.pieces[t]=new C(d.length),a.emit("warning",new Error("Piece "+t+" failed verification"));o()}})}),!0},o.prototype._checkDone=function(){var e=this;if(!e.destroyed){e.files.forEach(function(t){if(!t.done){for(var n=t._startPiece;n<=t._endPiece;++n)if(!e.bitfield.get(n))return;t.done=!0,t.emit("done"),e._debug("file done: "+t.name)}});for(var t=!0,n=0;n<e._selections.length;n++){for(var r=e._selections[n],o=r.from;o<=r.to;o++)if(!e.bitfield.get(o)){t=!1;break}if(!t)break}return!e.d