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implemented indexedDB database :shipit:

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This commit is contained in:
Kevin Jahns
2015-10-17 23:02:51 +02:00
parent 45814c4e00
commit 04139d3b7e
11 changed files with 656 additions and 674 deletions
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39
src/Transaction.js
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@@ -201,8 +201,8 @@ class Transaction {
var newlen = n.len - (id[1] - n.id[1])
n.len -= newlen
yield* this.ds.put(n)
n = yield* this.ds.put({id: id, len: newlen, gc: false})
n = n.val
n = {id: id, len: newlen, gc: false}
yield* this.ds.put(n)
}
// get prev&next before adding a new operation
var prev = yield* this.ds.findPrev(id)
@@ -245,8 +245,7 @@ class Transaction {
*/
* markDeleted (id) {
// this.mem.push(["del", id]);
var n = yield* this.ds.findNodeWithUpperBound(id)
n = n == null ? n : n.val
var n = yield* this.ds.findWithUpperBound(id)
if (n != null && n.id[0] === id[0]) {
if (n.id[1] <= id[1] && id[1] < n.id[1] + n.len) {
// already deleted
@@ -256,13 +255,13 @@ class Transaction {
n.len++
} else {
// cannot extend left
n = yield* this.ds.put({id: id, len: 1, gc: false})
n = n.val
n = {id: id, len: 1, gc: false}
yield* this.ds.put(n)
}
} else {
// cannot extend left
n = yield* this.ds.put({id: id, len: 1, gc: false})
n = n.val
n = {id: id, len: 1, gc: false}
yield* this.ds.put(n)
}
// can extend right?
var next = yield* this.ds.findNext(n.id)
@@ -398,9 +397,9 @@ class Transaction {
}
}
* checkDeleteStoreForState (state) {
var n = yield* this.ds.findNodeWithUpperBound([state.user, state.clock])
if (n !== null && n.val.id[0] === state.user && n.val.gc) {
state.clock = Math.max(state.clock, n.val.id[1] + n.val.len)
var n = yield* this.ds.findWithUpperBound([state.user, state.clock])
if (n != null && n.id[0] === state.user && n.gc) {
state.clock = Math.max(state.clock, n.id[1] + n.len)
}
}
/*
@@ -477,8 +476,8 @@ class Transaction {
}
}
* isGarbageCollected (id) {
var n = yield* this.ds.findNodeWithUpperBound(id)
return n !== null && n.val.id[0] === id[0] && id[1] < n.val.id[1] + n.val.len && n.val.gc
var n = yield* this.ds.findWithUpperBound(id)
return n != null && n.id[0] === id[0] && id[1] < n.id[1] + n.len && n.gc
}
/*
A DeleteSet (ds) describes all the deleted ops in the OS
@@ -500,23 +499,15 @@ class Transaction {
return ds
}
* isDeleted (id) {
var n = yield* this.ds.findNodeWithUpperBound(id)
return n !== null && n.val.id[0] === id[0] && id[1] < n.val.id[1] + n.val.len
var n = yield* this.ds.findWithUpperBound(id)
return n != null && n.id[0] === id[0] && id[1] < n.id[1] + n.len
}
* setOperation (op) {
yield* this.os.put(op)
return op
}
* addOperation (op) {
var n = yield* this.os.put(op)
return function () {
if (n != null) {
n = n.next()
return n != null ? n.val : null
} else {
return null
}
}
yield* this.os.put(op)
}
* getOperation (id) {
return yield* this.os.find(id)