Interprocess communication via pipes (#2009)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Use 'Process' to communicate with an command line tool.

* Remove slang-win-stream

* Tidy up windows ProcessUtil.

* First version of BufferedReadStream.

* Windows working IPC for steams.

* Test proxy count option.

* Split Process/ProcessUtil. Process is platform dependant. ProcessUtil are functions that are platform independent.

* First implementation of Unix Process interface.

* Unix process compiles on cygwin.

* Fix typo in unix process.

* Separate unix pipe stream error of invalid access, from pipe availability.

* Fix in standard line extraction.

* Make fd non blocking.

* Fix issues with Windows Process streams.

* Added UnixPipe.

* Some fixes around UnixPipeStream.

* Make a unix stream closed explicit.

* Hack to debug linux process/stream.

* Revert to old linux pipe handling.

* Pass executable path for unit tests.
Split out CommandLine into own source.

* Small improvements in process/command line.

* Check process behavior with crash.

* Make stderr and stdout unbuffered for crash testing.

* Only turn disable buffering in crash test.

* Disable crash test on CI.

* Fix crash on clang/linux.

* Enable crash test.
Remove _appendBuffer as can use StreamUtil functionality.

1 files changed, 3 insertions, 3 deletions

diff --git a/tools/render-test/render-test-main.cpp b/tools/render-test/render-test-main.cpp
index 689794cef..a3cde1c0a 100644
--- a/tools/render-test/render-test-main.cpp
+++ b/tools/render-test/render-test-main.cpp
@@ -63,7 +63,7 @@ using namespace Slang;
 static void _outputProfileTime(uint64_t startTicks, uint64_t endTicks)
 {
     WriterHelper out = StdWriters::getOut();
-    double time = double(endTicks - startTicks) / ProcessUtil::getClockFrequency();
+    double time = double(endTicks - startTicks) / Process::getClockFrequency();
     out.print("profile-time=%g\n", time);
 }
 
@@ -991,7 +991,7 @@ Result RenderTestApp::update()
     }
     commandBuffer->close();
 
-    m_startTicks = ProcessUtil::getClockTick();
+    m_startTicks = Process::getClockTick();
     m_queue->executeCommandBuffer(commandBuffer);
     m_queue->wait();
 
@@ -1030,7 +1030,7 @@ Result RenderTestApp::update()
             // Note we don't do the same with screen rendering -> as that will do a lot of work, which may swamp any computation
             // so can only really profile compute shaders at the moment
 
-            const uint64_t endTicks = ProcessUtil::getClockTick();
+            const uint64_t endTicks = Process::getClockTick();
 
             _outputProfileTime(m_startTicks, endTicks);
         }