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Fix git_tree_entry double free by kurtb · Pull Request #1332 · nodegit/nodegit · GitHub

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Fix git_tree_entry double free #1332

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Merged
implausible merged 4 commits into from
Aug 30, 2017
Conversation 13 Commits 4 Checks 0 Files changed
Merged

Fix git_tree_entry double free #1332

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62f5be6
Change tree_entry to not be selfFreeing
kurtb Jul 26, 2017
fb26b08
Remove leak test from tree_entry since it's no longer selfFreeing
kurtb Jul 26, 2017
f140847
Pull request feedback
kurtb Aug 16, 2017
67fc71d
Test for treebuilder insert memory management
kurtb Aug 16, 2017
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24 changes: 21 additions & 3 deletions generate/input/descriptor.json
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Original file line number Diff line number Diff line change
Expand Up @@ -2529,19 +2529,22 @@
"functions": {
"git_tree_entry_byid": {
"return": {
"ownedByThis": true
"ownedByThis": true,
"selfFreeing": false
}
},
"git_tree_entry_byindex": {
"jsFunctionName": "_entryByIndex",
"return": {
"ownedByThis": true
"ownedByThis": true,
"selfFreeing": false
}
},
"git_tree_entry_byname": {
"jsFunctionName": "_entryByName",
"return": {
"ownedByThis": true
"ownedByThis": true,
"selfFreeing": false
}
},
"git_tree_entrycount": {
Expand All @@ -2562,6 +2565,21 @@
"git_treebuilder_filter": {
"ignore": true
},
"git_treebuilder_get": {
"return": {
"selfFreeing": false,
"ownedByThis": true
}
},
"git_treebuilder_insert": {
"isAsync": false,
"args": {
"out": {
"selfFreeing": false,
"ownedByThis": true
}
}
},
"git_treebuilder_write": {
"args": {
"id": {
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19 changes: 19 additions & 0 deletions test/tests/treebuilder.js
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Original file line number Diff line number Diff line change
Expand Up @@ -5,10 +5,14 @@ var promisify = require("promisify-node");
var readDir = promisify(fs.readdir);
var local = path.join.bind(path, __dirname);

var leakTest = require("../utils/leak_test");

describe("TreeBuilder", function(){

var Git = require("../../");
var reposPath = local("../repos/workdir");
var oid = "111dd657329797f6165f52f5085f61ac976dcf04";

//setup test repo each test
beforeEach(function() {
var test = this;
Expand Down Expand Up @@ -76,4 +80,19 @@ describe("TreeBuilder", function(){
return Git.Tree.lookup(test.repo, newTreeEntry.oid());
});
});

it("does not leak inserts", function() {
var test = this;

// The underlying C++ git_tree_entry is owned by the treebuilder that
// creates it. But since git_tree_entry is duplicable the generator will
// duplicate it and mark it as self freeing.
// Validate this with the leakTest.
return leakTest(Git.TreeEntry, function() {
return Git.Treebuilder.create(test.repo, null)
.then(function(builder) {
return builder.insert("test", oid, Git.TreeEntry.FILEMODE.BLOB);
});
});
});
});
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