Function hashStringToInt32

web/src/server/free-session/store.ts:576–582

Stable 31-bit hash so model-keyed advisory lock ids don't overflow int4.

(s: string)

/** Stable 31-bit hash so model-keyed advisory lock ids don't overflow int4. */
function hashStringToInt32(s: string): number {
  let h = 0
  for (let i = 0; i < s.length; i++) {
    h = (h * 31 + s.charCodeAt(i)) | 0
  }
  return Math.abs(h) % 0x40000000
}