w1020/22.webpack/node_modules/memfs/lib/node/StatFs.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.StatFs = void 0;
/**
 * Statistics about a file system, like `fs.StatFs`.
 */
class StatFs {
    static build(superblock, bigint = false) {
        const statfs = new StatFs();
        const getStatNumber = !bigint ? number => number : number => BigInt(number);
        // For in-memory filesystem, provide mock but reasonable values
        // Magic number for in-memory filesystem type (similar to ramfs)
        statfs.type = getStatNumber(0x858458f6);
        // Optimal transfer block size - commonly 4096 bytes
        statfs.bsize = getStatNumber(4096);
        // Calculate filesystem stats based on current state
        const totalInodes = Object.keys(superblock.inodes).length;
        // Mock large filesystem capacity (appears as a large filesystem to applications)
        const totalBlocks = 1000000;
        const usedBlocks = Math.min(totalInodes * 2, totalBlocks); // Rough estimation
        const freeBlocks = totalBlocks - usedBlocks;
        statfs.blocks = getStatNumber(totalBlocks); // Total data blocks
        statfs.bfree = getStatNumber(freeBlocks); // Free blocks in file system
        statfs.bavail = getStatNumber(freeBlocks); // Free blocks available to unprivileged users
        // File node statistics
        const maxFiles = 1000000; // Mock large number of available inodes
        statfs.files = getStatNumber(maxFiles); // Total file nodes in file system
        statfs.ffree = getStatNumber(maxFiles - totalInodes); // Free file nodes
        return statfs;
    }
}
exports.StatFs = StatFs;
exports.default = StatFs;
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