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s},write:function(e,r,n,o,i,a){if(r.buffer===T.buffer&&(a=!1),!o)return 0;var s=e.node;if(s.timestamp=Date.now(),r.subarray&&(!s.contents||s.contents.subarray)){if(a)return s.contents=r.subarray(n,n+o),s.usedBytes=o,o;if(s.usedBytes===0&&i===0)return s.contents=r.slice(n,n+o),s.usedBytes=o,o;if(i+o<=s.usedBytes)return s.contents.set(r.subarray(n,n+o),i),o}if(_.expandFileStorage(s,i+o),s.contents.subarray&&r.subarray)s.contents.set(r.subarray(n,n+o),i);else for(var u=0;u<o;u++)s.contents[i+u]=r[n+u];return s.usedBytes=Math.max(s.usedBytes,i+o),o},llseek:function(e,r,n){var o=r;if(n===1?o+=e.position:n===2&&t.isFile(e.node.mode)&&(o+=e.node.usedBytes),o<0)throw new t.ErrnoError(28);return o},allocate:function(e,r,n){_.expandFileStorage(e.node,r+n),e.node.usedBytes=Math.max(e.node.usedBytes,r+n)},mmap:function(e,r,n,o,i,a,s){if(!t.isFile(e.node.mode))throw new t.ErrnoError(43);var u,c,d=e.node.contents;if(!(s&2)&&d.buffer===r.buffer)c=!1,u=d.byteOffset;else{(i>0||i+o<d.length)&&(d.subarray?d=d.subarray(i,i+o):d=Array.prototype.slice.call(d,i,i+o)),c=!0;var m=r.buffer==T.buffer;if(u=ze(o),!u)throw new t.ErrnoError(48);(m?T:r).set(d,u)}return{ptr:u,allocated:c}},msync:function(e,r,n,o,i){if(!t.isFile(e.node.mode))throw new t.ErrnoError(43);return i&2||_.stream_ops.write(e,r,0,o,n,!1),0}}},t={root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:!1,ignorePermissions:!0,trackingDelegate:{},tracking:{openFlags:{READ:1,WRITE:2}},ErrnoError:null,genericErrors:{},filesystems:null,syncFSRequests:0,handleFSError:function(e){if(!(e instanceof t.ErrnoError))throw e+" : "+Qr();return ee(e.errno)},lookupPath:function(e,r){if(e=B.resolve(t.cwd(),e),r=r||{},!e)return{path:"",node:null};var n={follow_mount:!0,recurse_count:0};for(var o in n)r[o]===void 0&&(r[o]=n[o]);if(r.recurse_count>8)throw new t.ErrnoError(32);for(var i=E.normalizeArray(e.split("/").filter(function(v){return!!v}),!1),a=t.root,s="/",u=0;u<i.length;u++){var c=u===i.length-1;if(c&&r.parent)break;if(a=t.lookupNode(a,i[u]),s=E.join2(s,i[u]),t.isMountpoint(a)&&(!c||c&&r.follow_mount)&&(a=a.mounted.root),!c||r.follow)for(var d=0;t.isLink(a.mode);){var m=t.readlink(s);s=B.resolve(E.dirname(s),m);var y=t.lookupPath(s,{recurse_count:r.recurse_count});if(a=y.node,d++>40)throw new t.ErrnoError(32)}}return{path:s,node:a}},getPath:function(e){for(var r;;){if(t.isRoot(e)){var n=e.mount.mountpoint;return r?n[n.length-1]!=="/"?n+"/"+r:n+r:n}r=r?e.name+"/"+r:e.name,e=e.parent}},hashName:function(e,r){for(var n=0,o=0;o<r.length;o++)n=(n<<5)-n+r.charCodeAt(o)|0;return(e+n>>>0)%t.nameTable.length},hashAddNode:function(e){var r=t.hashName(e.parent.id,e.name);e.name_next=t.nameTable[r],t.nameTable[r]=e},hashRemoveNode:function(e){var r=t.hashName(e.parent.id,e.name);if(t.nameTable[r]===e)t.nameTable[r]=e.name_next;else for(var n=t.nameTable[r];n;){if(n.name_next===e){n.name_next=e.name_next;break}n=n.name_next}},lookupNode:function(e,r){var n=t.mayLookup(e);if(n)throw new t.ErrnoError(n,e);for(var o=t.hashName(e.id,r),i=t.nameTable[o];i;i=i.name_next){var a=i.name;if(i.parent.id===e.id&&a===r)return i}return t.lookup(e,r)},createNode:function(e,r,n,o){var i=new t.FSNode(e,r,n,o);return t.hashAddNode(i),i},destroyNode:function(e){t.hashRemoveNode(e)},isRoot:function(e){return e===e.parent},isMountpoint:function(e){return!!e.mounted},isFile:function(e){return(e&61440)===32768},isDir:function(e){return(e&61440)===16384},isLink:function(e){return(e&61440)===40960},isChrdev:function(e){return(e&61440)===8192},isBlkdev:function(e){return(e&61440)===24576},isFIFO:function(e){return(e&61440)===4096},isSocket:function(e){return(e&49152)===49152},flagModes:{r:0,rs:1052672,"r+":2,w:577,wx:705,xw:705,"w+":578,"wx+":706,"xw+":706,a:1089,ax:1217,xa:1217,"a+":1090,"ax+":1218,"xa+":1218},modeStringToFlags:function(e){var r=t.flagModes[e];if(typeof r>"u")throw new Error("Unknown file open mode: "+e);return r},flagsToPermissionString:function(e){var r=["r","w","rw"][e&3];return e&512&&(r+="w"),r},nodePermissions:function(e,r){return t.ignorePermissions?0:r.indexOf("r")!==-1&&!(e.mode&292)||r.indexOf("w")!==-1&&!(e.mode&146)||r.indexOf("x")!==-1&&!(e.mode&73)?2:0},mayLookup:function(e){var r=t.nodePermissions(e,"x");return r||(e.node_ops.lookup?0:2)},mayCreate:function(e,r){try{var n=t.lookupNode(e,r);return 20}catch{}return t.nodePermissions(e,"wx")},mayDelete:function(e,r,n){var o;try{o=t.lookupNode(e,r)}catch(a){return a.errno}var i=t.nodePermissions(e,"wx");if(i)return i;if(n){if(!t.isDir(o.mode))return 54;if(t.isRoot(o)||t.getPath(o)===t.cwd())return 10}else if(t.isDir(o.mode))return 31;return 0},mayOpen:function(e,r){return e?t.isLink(e.mode)?32:t.isDir(e.mode)&&(t.flagsToPermissionString(r)!=="r"||r&512)?31:t.nodePermissions(e,t.flagsToPermissionString(r)):44},MAX_OPEN_FDS:4096,nextfd:function(e,r){e=e||0,r=r||t.MAX_OPEN_FDS;for(var n=e;n<=r;n++)if(!t.streams[n])return n;throw new t.ErrnoError(33)},getStream:function(e){return t.streams[e]},createStream:function(e,r,n){t.FSStream||(t.FSStream=function(){},t.FSStream.prototype={object:{get:function(){return this.node},set:function(s){this.node=s}},isRead:{get:function(){return(this.flags&2097155)!==1}},isWrite:{get:function(){return(this.flags&2097155)!==0}},isAppend:{get:function(){return this.flags&1024}}});var o=new t.FSStream;for(var i in e)o[i]=e[i];e=o;var a=t.nextfd(r,n);return e.fd=a,t.streams[a]=e,e},closeStream:function(e){t.streams[e]=null},chrdev_stream_ops:{open:function(e){var r=t.getDevice(e.node.rdev);e.stream_ops=r.stream_ops,e.stream_ops.open&&e.stream_ops.open(e)},llseek:function(){throw new t.ErrnoError(70)}},major:function(e){return e>>8},minor:function(e){return e&255},makedev:function(e,r){return e<<8|r},registerDevice:function(e,r){t.devices[e]={stream_ops:r}},getDevice:function(e){return t.devices[e]},getMounts:function(e){for(var r=[],n=[e];n.length;){var o=n.pop();r.push(o),n.push.apply(n,o.mounts)}return r},syncfs:function(e,r){typeof e=="function"&&(r=e,e=!1),t.syncFSRequests++,t.syncFSRequests>1&&P("warning: "+t.syncFSRequests+" FS.syncfs operations in flight at once, probably just doing extra work");var n=t.getMounts(t.root.mount),o=0;function i(s){return t.syncFSRequests--,r(s)}function a(s){if(s)return a.errored?void 0:(a.errored=!0,i(s));++o>=n.length&&i(null)}n.forEach(function(s){if(!s.type.syncfs)return a(null);s.type.syncfs(s,e,a)})},mount:function(e,r,n){var o=n==="/",i=!n,a;if(o&&t.root)throw new t.ErrnoError(10);if(!o&&!i){var s=t.lookupPath(n,{follow_mount:!1});if(n=s.path,a=s.node,t.isMountpoint(a))throw new t.ErrnoError(10);if(!t.isDir(a.mode))throw new t.ErrnoError(54)}var u={type:e,opts:r,mountpoint:n,mounts:[]},c=e.mount(u);return c.mount=u,u.root=c,o?t.root=c:a&&(a.mounted=u,a.mount&&a.mount.mounts.push(u)),c},unmount:function(e){var r=t.lookupPath(e,{follow_mount:!1});if(!t.isMountpoint(r.node))throw new t.ErrnoError(28);var n=r.node,o=n.mounted,i=t.getMounts(o);Object.keys(t.nameTable).forEach(function(s){for(var u=t.nameTable[s];u;){var c=u.name_next;i.indexOf(u.mount)!==-1&&t.destroyNode(u),u=c}}),n.mounted=null;var a=n.mount.mounts.indexOf(o);n.mount.mounts.splice(a,1)},lookup:function(e,r){return e.node_ops.lookup(e,r)},mknod:function(e,r,n){var o=t.lookupPath(e,{parent:!0}),i=o.node,a=E.basename(e);if(!a||a==="."||a==="..")throw new t.ErrnoError(28);var s=t.mayCreate(i,a);if(s)throw new t.ErrnoError(s);if(!i.node_ops.mknod)throw new t.ErrnoError(63);return i.node_ops.mknod(i,a,r,n)},create:function(e,r){return r=r!==void 0?r:438,r&=4095,r|=32768,t.mknod(e,r,0)},mkdir:function(e,r){return r=r!==void 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t.ErrnoError(55);var y;try{y=t.lookupNode(c,a)}catch{}if(d!==y){var v=t.isDir(d.mode),h=t.mayDelete(u,i,v);if(h)throw new t.ErrnoError(h);if(h=y?t.mayDelete(c,a,v):t.mayCreate(c,a),h)throw new t.ErrnoError(h);if(!u.node_ops.rename)throw new t.ErrnoError(63);if(t.isMountpoint(d)||y&&t.isMountpoint(y))throw new t.ErrnoError(10);if(c!==u&&(h=t.nodePermissions(u,"w"),h))throw new t.ErrnoError(h);try{t.trackingDelegate.willMovePath&&t.trackingDelegate.willMovePath(e,r)}catch(w){P("FS.trackingDelegate['willMovePath']('"+e+"', '"+r+"') threw an exception: "+w.message)}t.hashRemoveNode(d);try{u.node_ops.rename(d,c,a)}catch(w){throw w}finally{t.hashAddNode(d)}try{t.trackingDelegate.onMovePath&&t.trackingDelegate.onMovePath(e,r)}catch(w){P("FS.trackingDelegate['onMovePath']('"+e+"', '"+r+"') threw an exception: "+w.message)}}},rmdir:function(e){var r=t.lookupPath(e,{parent:!0}),n=r.node,o=E.basename(e),i=t.lookupNode(n,o),a=t.mayDelete(n,o,!0);if(a)throw new t.ErrnoError(a);if(!n.node_ops.rmdir)throw new t.ErrnoError(63);if(t.isMountpoint(i))throw new t.ErrnoError(10);try{t.trackingDelegate.willDeletePath&&t.trackingDelegate.willDeletePath(e)}catch(s){P("FS.trackingDelegate['willDeletePath']('"+e+"') threw an exception: "+s.message)}n.node_ops.rmdir(n,o),t.destroyNode(i);try{t.trackingDelegate.onDeletePath&&t.trackingDelegate.onDeletePath(e)}catch(s){P("FS.trackingDelegate['onDeletePath']('"+e+"') threw an exception: "+s.message)}},readdir:function(e){var r=t.lookupPath(e,{follow:!0}),n=r.node;if(!n.node_ops.readdir)throw new t.ErrnoError(54);return n.node_ops.readdir(n)},unlink:function(e){var r=t.lookupPath(e,{parent:!0}),n=r.node,o=E.basename(e),i=t.lookupNode(n,o),a=t.mayDelete(n,o,!1);if(a)throw new t.ErrnoError(a);if(!n.node_ops.unlink)throw new t.ErrnoError(63);if(t.isMountpoint(i))throw new t.ErrnoError(10);try{t.trackingDelegate.willDeletePath&&t.trackingDelegate.willDeletePath(e)}catch(s){P("FS.trackingDelegate['willDeletePath']('"+e+"') threw an exception: "+s.message)}n.node_ops.unlink(n,o),t.destroyNode(i);try{t.trackingDelegate.onDeletePath&&t.trackingDelegate.onDeletePath(e)}catch(s){P("FS.trackingDelegate['onDeletePath']('"+e+"') threw an exception: "+s.message)}},readlink:function(e){var r=t.lookupPath(e),n=r.node;if(!n)throw new t.ErrnoError(44);if(!n.node_ops.readlink)throw new t.ErrnoError(28);return B.resolve(t.getPath(n.parent),n.node_ops.readlink(n))},stat:function(e,r){var n=t.lookupPath(e,{follow:!r}),o=n.node;if(!o)throw new t.ErrnoError(44);if(!o.node_ops.getattr)throw new t.ErrnoError(63);return o.node_ops.getattr(o)},lstat:function(e){return t.stat(e,!0)},chmod:function(e,r,n){var o;if(typeof e=="string"){var i=t.lookupPath(e,{follow:!n});o=i.node}else o=e;if(!o.node_ops.setattr)throw new t.ErrnoError(63);o.node_ops.setattr(o,{mode:r&4095|o.mode&-4096,timestamp:Date.now()})},lchmod:function(e,r){t.chmod(e,r,!0)},fchmod:function(e,r){var n=t.getStream(e);if(!n)throw new t.ErrnoError(8);t.chmod(n.node,r)},chown:function(e,r,n,o){var i;if(typeof e=="string"){var a=t.lookupPath(e,{follow:!o});i=a.node}else i=e;if(!i.node_ops.setattr)throw new t.ErrnoError(63);i.node_ops.setattr(i,{timestamp:Date.now()})},lchown:function(e,r,n){t.chown(e,r,n,!0)},fchown:function(e,r,n){var o=t.getStream(e);if(!o)throw new t.ErrnoError(8);t.chown(o.node,r,n)},truncate:function(e,r){if(r<0)throw new t.ErrnoError(28);var n;if(typeof e=="string"){var o=t.lookupPath(e,{follow:!0});n=o.node}else n=e;if(!n.node_ops.setattr)throw new t.ErrnoError(63);if(t.isDir(n.mode))throw new t.ErrnoError(31);if(!t.isFile(n.mode))throw new t.ErrnoError(28);var i=t.nodePermissions(n,"w");if(i)throw new t.ErrnoError(i);n.node_ops.setattr(n,{size:r,timestamp:Date.now()})},ftruncate:function(e,r){var n=t.getStream(e);if(!n)throw new t.ErrnoError(8);if(!(n.flags&2097155))throw new t.ErrnoError(28);t.truncate(n.node,r)},utime:function(e,r,n){var o=t.lookupPath(e,{follow:!0}),i=o.node;i.node_ops.setattr(i,{timestamp:Math.max(r,n)})},open:function(e,r,n,o,i){if(e==="")throw new t.ErrnoError(44);r=typeof r=="string"?t.modeStringToFlags(r):r,n=typeof n>"u"?438:n,r&64?n=n&4095|32768:n=0;var a;if(typeof e=="object")a=e;else{e=E.normalize(e);try{var s=t.lookupPath(e,{follow:!(r&131072)});a=s.node}catch{}}var u=!1;if(r&64)if(a){if(r&128)throw new t.ErrnoError(20)}else a=t.mknod(e,n,0),u=!0;if(!a)throw new t.ErrnoError(44);if(t.isChrdev(a.mode)&&(r&=-513),r&65536&&!t.isDir(a.mode))throw new t.ErrnoError(54);if(!u){var c=t.mayOpen(a,r);if(c)throw new t.ErrnoError(c)}r&512&&t.truncate(a,0),r&=-131713;var 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