Skip to content
Closed
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
25 changes: 12 additions & 13 deletions validation-test/stdlib/StringSlicesConcurrentAppend.swift
Original file line number Diff line number Diff line change
Expand Up @@ -25,13 +25,13 @@ extension String {
// different non-shared strings that point to the same shared buffer.

enum ThreadID {
case Leader
case Follower
case Master
case Slave
}

var barrierVar: UnsafeMutablePointer<_stdlib_pthread_barrier_t> = nil
var sharedString: String = ""
var followerString: String = ""
var slaveString: String = ""

func barrier() {
var ret = _stdlib_pthread_barrier_wait(barrierVar)
Expand All @@ -41,7 +41,7 @@ func barrier() {
func sliceConcurrentAppendThread(tid: ThreadID) {
for i in 0..<100 {
barrier()
if tid == .Leader {
if tid == .Master {
// Get a fresh buffer.
sharedString = ""
sharedString.appendContentsOf("abc")
Expand All @@ -57,7 +57,7 @@ func sliceConcurrentAppendThread(tid: ThreadID) {
barrier()

// Append to the private string.
if tid == .Leader {
if tid == .Master {
privateString.appendContentsOf("def")
} else {
privateString.appendContentsOf("ghi")
Expand All @@ -66,22 +66,22 @@ func sliceConcurrentAppendThread(tid: ThreadID) {
barrier()

// Verify that contents look good.
if tid == .Leader {
if tid == .Master {
expectEqual("abcdef", privateString)
} else {
expectEqual("abcghi", privateString)
}
expectEqual("abc", sharedString)

// Verify that only one thread took ownership of the buffer.
if tid == .Follower {
followerString = privateString
if tid == .Slave {
slaveString = privateString
}
barrier()
if tid == .Leader {
if tid == .Master {
expectTrue(
(privateString.bufferID == sharedString.bufferID) !=
(followerString.bufferID == sharedString.bufferID))
(slaveString.bufferID == sharedString.bufferID))
}
}
}
Expand All @@ -93,9 +93,9 @@ StringTestSuite.test("SliceConcurrentAppend") {
expectEqual(0, ret)

let (createRet1, tid1) = _stdlib_pthread_create_block(
nil, sliceConcurrentAppendThread, .Leader)
nil, sliceConcurrentAppendThread, .Master)
let (createRet2, tid2) = _stdlib_pthread_create_block(
nil, sliceConcurrentAppendThread, .Follower)
nil, sliceConcurrentAppendThread, .Slave)

expectEqual(0, createRet1)
expectEqual(0, createRet2)
Expand All @@ -114,4 +114,3 @@ StringTestSuite.test("SliceConcurrentAppend") {
}

runAllTests()