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require File.expand_path('../spec_helper', __FILE__)
require File.expand_path('../../../core/thread/shared/wakeup', __FILE__)
load_extension("thread")
class Thread
def self.capi_thread_specs=(t)
@@capi_thread_specs = t
end
def call_capi_rb_thread_wakeup
@@capi_thread_specs.rb_thread_wakeup(self)
end
end
describe "C-API Thread function" do
before :each do
@t = CApiThreadSpecs.new
ScratchPad.clear
Thread.capi_thread_specs = @t
end
describe "rb_thread_select" do
it "returns true if an fd is ready to read" do
read, write = IO.pipe
@t.rb_thread_select_fd(read.to_i, 0).should == false
write << "1"
@t.rb_thread_select_fd(read.to_i, 0).should == true
end
it "does not block all threads" do
t = Thread.new do
sleep 0.25
ScratchPad.record :inner
end
Thread.pass while t.status and t.status != "sleep"
@t.rb_thread_select(500_000)
t.alive?.should be_false
ScratchPad.recorded.should == :inner
t.join
end
end
describe "rb_thread_wait_for" do
it "sleeps the current thread for the give ammount of time" do
start = Time.now
@t.rb_thread_wait_for(0, 100_000)
(Time.now - start).should be_close(0.1, 0.1)
end
end
describe "rb_thread_alone" do
it "returns true if there is only one thread" do
pred = Thread.list.size == 1
@t.rb_thread_alone.should == pred
end
end
describe "rb_thread_current" do
it "equals Thread.current" do
@t.rb_thread_current.should == Thread.current
end
end
describe "rb_thread_local_aref" do
it "returns the value of a thread-local variable" do
thr = Thread.current
sym = :thread_capi_specs_aref
thr[sym] = 1
@t.rb_thread_local_aref(thr, sym).should == 1
end
it "returns nil if the value has not been set" do
@t.rb_thread_local_aref(Thread.current, :thread_capi_specs_undefined).should be_nil
end
end
describe "rb_thread_local_aset" do
it "sets the value of a thread-local variable" do
thr = Thread.current
sym = :thread_capi_specs_aset
@t.rb_thread_local_aset(thr, sym, 2).should == 2
thr[sym].should == 2
end
end
describe "rb_thread_wakeup" do
it_behaves_like :thread_wakeup, :call_capi_rb_thread_wakeup
end
describe "rb_thread_create" do
it "creates a new thread" do
obj = Object.new
proc = lambda { |x| ScratchPad.record x }
thr = @t.rb_thread_create(proc, obj)
thr.should be_kind_of(Thread)
thr.join
ScratchPad.recorded.should == obj
end
it "handles throwing an exception in the thread" do
proc = lambda { |x| raise NotImplementedError }
thr = @t.rb_thread_create(proc, nil)
thr.should be_kind_of(Thread)
lambda { thr.join }.should raise_error(NotImplementedError)
end
end
end
describe :rb_thread_blocking_region, :shared => true do
before :each do
@t = CApiThreadSpecs.new
ScratchPad.clear
end
it "runs a C function with the global lock unlocked" do
thr = Thread.new do
@t.send(@method)
end
# Wait until it's blocking...
sleep 1
# Wake it up, causing the unblock function to be run.
thr.wakeup
# Make sure it stopped
thr.join(1).should_not be_nil
# And we got a proper value
thr.value.should be_true
end
end
describe "C-API Thread function" do
describe "rb_thread_blocking_region" do
extended_on :rubinius do
it_behaves_like :rb_thread_blocking_region, :rb_thread_blocking_region_with_ubf_io
it_behaves_like :rb_thread_blocking_region, :rb_thread_blocking_region
end
ruby_version_is "1.9" do
it_behaves_like :rb_thread_blocking_region, :rb_thread_blocking_region_with_ubf_io
it_behaves_like :rb_thread_blocking_region, :rb_thread_blocking_region
end
end
end
|
