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device files are mounted under the drive letter of dollarsign

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This commit is contained in:
minjaesong
2022-09-24 16:46:44 +09:00
parent f9eecab830
commit 0304ded991
8 changed files with 38 additions and 26 deletions
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20
assets/disk0/tvdos/TVDOS.SYS
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@@ -94,15 +94,17 @@ _TVDOS.DRV.FS = {}
class TVDOSFileDescriptor {
constructor(path0, driverID) {
if (driverID === undefined) {
if (!files.reservedNames.includes(path0)) {
throw Error(`${path0} is not a valid device file`)
if (path0.startsWith("$")) {
let devName = path0.substring(3)
if (!files.reservedNames.includes(devName)) {
throw Error(`${devName} is not a valid device file`)
}
this._driveLetter = undefined
this._path = path0
this._driverID = `DEV${path0}`
this._driver = _TVDOS.DRV.FS[`DEV${path0}`] // can't just put `driverID` here
this._driverID = `DEV${devName}`
this._driver = _TVDOS.DRV.FS[`DEV${devName}`] // can't just put `driverID` here
}
else {
let p = path0.replaceAll("/", "\\")
@@ -111,7 +113,7 @@ class TVDOSFileDescriptor {
p = p.substring(0, p.length - 1)
}
this._driveLetter = p[0]
this._path = p.substring(2) // detaches A:
this._path = p.substring(2) // detaches $:
this._driverID = driverID
this._driver = _TVDOS.DRV.FS[driverID]
serial.println(`TVDOSFileDescriptor input path: ${path0}, p = ${p}, driveLetter = ${this._driveLetter}, path = ${this._path}`)
@@ -810,6 +812,12 @@ files.open = (fullPath) => {
if (fullPath[2] != '/' && fullPath[2] != '\\') throw Error("Expected full path with drive letter, got " + fullPath)
let driveLetter = fullPath[0].toUpperCase()
let driver = _TVDOS.DRIVEFS[driveLetter]
// special device files ($:\NUL, $:\CON, etc)
if ("$" == driveLetter) {
return new TVDOSFileDescriptor(fullPath.toUpperCase())
}
return new TVDOSFileDescriptor(fullPath, driver)
}