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tmpfs file

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This commit is contained in:
minjaesong
2023-05-05 22:33:23 +09:00
parent b6fb9acd6a
commit fe6f247a76
2 changed files with 26 additions and 5 deletions
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4
assets/disk0/tmptest.js Normal file
View File

@@ -0,0 +1,4 @@
let tmp = files.open("$:/TMP/test.txt")
tmp.swrite("Hello, world!")
println(tmp.sread())
tmp.close()

27
assets/disk0/tvdos/TVDOS.SYS
View File

@@ -29,7 +29,7 @@ class PmemFSdir {
return
}
if (typeof myVar === 'string' || myVar instanceof String) {
if (typeof targetpath === 'string' || targetpath instanceof String) {
this.target = targetpath
}
else {
@@ -45,7 +45,7 @@ class PmemFSfile {
}
// string representation (preferable)
if (typeof myVar === 'string' || myVar instanceof String) {
if (typeof bytes === 'string' || bytes instanceof String) {
this.data = bytes
}
// Javascript array OR JVM byte[]
@@ -150,7 +150,9 @@ class TVDOSFileDescriptor {
constructor(path0, driverID) {
if (path0.startsWith("$")) {
let devName = path0.substring(3)
let path1 = path0.substring(3)
let slashPos = path1.indexOf("/")
let devName = path1.substring(0, (slashPos < 0) ? path1.length : slashPos)
if (!files.reservedNames.includes(devName)) {
throw Error(`${devName} is not a valid device file`)
@@ -726,11 +728,26 @@ _TVDOS.DRV.FS.DEVTMP.bread = (fd) => {
_TVDOS.DRV.FS.DEVTMP.pread = (fd, ptr, count, offset) => {
if (_TVDOS.TMPFS[fd.path] === undefined) throw Error(`No such file: ${fd.fullPath}`)
let str = _TVDOS.TMPFS[fd.path].dataAsString()
for (let i = 0; i < count - offset; i++) {
sys.poke(ptr + i, String.charCodeAt(i + offset))
for (let i = 0; i < count - (offset || 0); i++) {
sys.poke(ptr + i, String.charCodeAt(i + (offset || 0)))
}
}
_TVDOS.DRV.FS.DEVTMP.swrite = (fd, str) => {
_TVDOS.TMPFS[fd.path] = new PmemFSfile(str)
}
_TVDOS.DRV.FS.DEVTMP.bwrite = (fd, bytes) => {
_TVDOS.TMPFS[fd.path] = new PmemFSfile(bytes)
}
_TVDOS.DRV.FS.DEVTMP.pwrite = (fd, ptr, count, offset) => {
let appendstr = ""
for (let i = 0; i < count; i++) {
appendstr += String.fromCharCode(sys.peek(ptr + i))
}
let oldstr = (_TVDOS.TMPFS[fd.path] === undefined) ? "" : _TVDOS.TMPFS[fd.path].dataAsString().substring(0, offset || 0)
_TVDOS.TMPFS[fd.path] = new PmemFSfile(oldstr + appendstr)
}
_TVDOS.DRV.FS.DEVTMP.flush = (fd) => {}
_TVDOS.DRV.FS.DEVTMP.close = (fd) => {}
_TVDOS.DRV.FS.DEVTMP.isDirectory = (fd) => (_TVDOS.TMPFS[fd.path] != undefined && _TVDOS.TMPFS[fd.path] instanceof PmemFSdir)