* Fixed file descriptor leak when running native processes on posix platforms
* Removed hangup test on poll for pipe file descriptors since it exited to early and missed reads
[CL 30963156 by henrik karlsson in ue5-main branch]
* Improved error handling for setpriority even more. There is a risk that a non-detoured process have exited already when we get to this function
[CL 30878827 by henrik karlsson in ue5-main branch]
* Changed so com memory is not split up in read and write since they never overlap.. so both read and write can use all the memory
[CL 30871523 by henrik karlsson in ue5-main branch]
* Fixed so imagehlp.dll and dbghelp.dll are detoured when loaded. Detour ImageGetDigestStream and SymLoadModuleExW because both of them cause trouble on wine
* Fixed so reuse of processes also honor log files so a new log file is created when reuse happen
* Improved log file naming so host can set name and log files are sent back properly with the right name
[CL 30638193 by henrik karlsson in ue5-main branch]
* Added GetNextProcess as a real message type (not using Custom) to be able to stop fetching work if helper is being terminated by aws or if we want to scale down number of workers
* Did some cleanup in the Tcp backend code and made sure not to call close socket multiple times (since it can cause the code to close a different socket than what is owned)
[CL 30584707 by henrik karlsson in ue5-main branch]
* Added ProcessStartInfo::writeOutputFilesOnFail that can be set to true if we want the output files to be written/sent back even though process exited with errors
* Changed so session client use ProcessStartInfoHolder and moved serialization code to that class
[CL 30576299 by henrik karlsson in ue5-main branch]
* Beeeautiful hack to try to get around ETXTBSY error when spawning ispc processes on linux. Our theory is that with perfectly bad timing the symlink creation of ispc could happen at the exact same time as a posix_spawn happening and inside symlink there is a temporarily open file descriptor that gets cloned into the child and kept open. and this causes ETXTBSY when trying to open that binary.
Solution is simply to have a writelock around the symlink creation and a readlock around posix_spawn
[CL 30513020 by henrik karlsson in ue5-main branch]
* Added RegisterDeleteFile to external api that should be used when file is deleted outside of uba but uba needs to know about it
* Reduced lock scope around FlushDeadProcesses
* Fixed disconnect issue crash in ubaagent that could cause access violation in UbaStorage. Fix was to cleanup when leaving StorageClient::SendAllSegments
* Changed so UbaRequestNextProcess is doing a full environment update (not resetting stats) if no next process is found
* Fixed so Scheduler enableProcessReuse=false works properly
* Improved some assert descriptions
* Fixed so files in m_outputFiles in session client is erased when flushed to server
* Fixed so Rpc_GetFullName cleans up .. in paths
* Fixed so files that existed but has been deleted by external process is seen as not existing by remote detoured process.
[CL 30507663 by henrik karlsson in ue5-main branch]
* Implemented process reuse logic in UbaScheduler. It is now possible for running processes to fetch more work
* Fixed bugs in custom message path
* Fixed bugs in FlushWrittenFiles message
* Changed So UpdateEnvironment is resetting stats
* Fixed potential race condition related to process reuse
* Added special rule for ShaderCompileWorker.exe which detours ImageGetDigestStream in Imagehlp.dll (because wine implementation does not match windows implementation)
* Renamed "exitedUserData" to just userData since it is used for more than when exiting process
* Added a couple more dlls to "known system dlls"
* Fixed so visualizer can visualize process reuse properly
[CL 30462059 by henrik karlsson in ue5-main branch]
* Added retry for ETXTBSY failures when doing posix_spawn. Have no idea how these can happen but they do.
[CL 30311542 by henrik karlsson in ue5-main branch]
