[PATCH 1/2] ntdll: Add SIGQUIT to server_block_set.

[Elizabeth Figura]

From: Elizabeth Figura

Keil UV4 C51 starts a thread and then immediately terminates it, usually while
it's in the middle of an NtClose(). This results in the thread dying while
holding the fd_cache_handle mutex, which results in a hang from other threads in
the process.

We don't need to process SIGQUIT immediately, so just mask it off until we're
out of the uninterrupted section.

This will require the next commit to fix the bug.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54807
---
 dlls/ntdll/unix/server.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/ntdll/unix/server.c b/dlls/ntdll/unix/server.c
index 53fcc61ccf3..057efb5e917 100644
--- a/dlls/ntdll/unix/server.c
+++ b/dlls/ntdll/unix/server.c
@@ -1579,6 +1579,7 @@ size_t server_init_process(void)
     sigaddset( &server_block_set, SIGIO );
     sigaddset( &server_block_set, SIGINT );
     sigaddset( &server_block_set, SIGHUP );
+    sigaddset( &server_block_set, SIGQUIT );
     sigaddset( &server_block_set, SIGUSR1 );
     sigaddset( &server_block_set, SIGUSR2 );
     sigaddset( &server_block_set, SIGCHLD );