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some changes in filesystem

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This commit is contained in:
overflowerror 2014-05-23 22:53:47 +02:00
parent b59e02031c
commit 35ee5b67b4
2 changed files with 26 additions and 2 deletions
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24
wish-sys/sys-part/kernel/mod.devfs.js
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@ -81,6 +81,30 @@ Kernel.Filesystem.devfs.populate = function() {
return true;
}
Kernel.Filesystem.devfs.files.push(tty);
var urandom = new InnerFile();
urandom.name = "urandom";
urandom.id = Kernel.Filesystem.vfs.index++;
urandom.ownerID = 0;
urandom.groupID = 0;
urandom.parent = NO_PARENT;
urandom.permissions = PERM_OR | PERM_GR | PERM_UR;
urandom.created = timestampOfCreation;
urandom.changed = timestampOfCreation;
urandom.onChange = function (content) {
// writing to /dev/urandom does nothing
return false;
}
urandom.removeReaded = true;
urandom.neverEnds = true;
urandom.onRead = function (number) {
if (!number)
number = 4294967296; // 2^32; cheat because we can't generate inf random numbers at once.
for (var i = 0; i < number; i++)
this.content += String.fromCharCode(parseInt(Math.random() * 65536));
return true;
}
Kernel.Filesystem.devfs.files.push(urandom);
}
Kernel.Filesystem.devfs.mount = function () {
var point = new MountPoint();

4
wish-sys/sys-part/kernel/mod.vfs.js
View file

@ -156,7 +156,7 @@ Kernel.Filesystem.read = function(path, length, index, readMode) {
}
}
if (!file.onRead())
if (!file.onRead(length))
return "";
var content = file.content;
@ -173,7 +173,7 @@ Kernel.Filesystem.read = function(path, length, index, readMode) {
var text = "";
if (length !== undefined) {
if (index !== undefined) {
if (index !== undefined && !file.neverEnds) {
text = content.substring(index, length + index);
if ((text.length < length) && (!file.neverEnds))
text += EOF;