deps: update npm to 7.0.0-rc.3

PR-URL: https://github.com/nodejs/node/pull/35474
Reviewed-By: Ruy Adorno <ruyadorno@github.com>
Reviewed-By: Ujjwal Sharma <ryzokuken@disroot.org>
Reviewed-By: Ben Coe <bencoe@gmail.com>
Reviewed-By: Geoffrey Booth <webmaster@geoffreybooth.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Shelley Vohr <codebytere@gmail.com>
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

1 files changed, 43 insertions, 0 deletions

diff --git a/deps/npm/node_modules/promise-call-limit/index.js b/deps/npm/node_modules/promise-call-limit/index.js
new file mode 100644
index 0000000000..a093c2481c
--- /dev/null
+++ b/deps/npm/node_modules/promise-call-limit/index.js
@@ -0,0 +1,43 @@
+const defLimit = require('os').cpus().length
+const callLimit = (queue, limit = defLimit) => new Promise((res, rej) => {
+  let active = 0
+  let current = 0
+  const results = []
+
+  let rejected = false
+  const reject = er => {
+    if (rejected)
+      return
+    rejected = true
+    rej(er)
+  }
+
+  let resolved = false
+  const resolve = () => {
+    if (resolved || active > 0)
+      return
+    resolved = true
+    res(results)
+  }
+
+  const run = () => {
+    const c = current++
+    if (c >= queue.length) {
+      return resolve()
+    }
+
+    active ++
+    results[c] = queue[c]().then(result => {
+      active --
+      results[c] = result
+      run()
+      return result
+    }, reject)
+  }
+
+  for (let i = 0; i < limit; i++) {
+    run()
+  }
+})
+
+module.exports = callLimit