Francois Gouget : ntdll/tests: Minimize the stack size for test_tp_multi_wait().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 9e5d54eac4085fa90049a6f52749ae78b86b05b6
URL:    https://gitlab.winehq.org/wine/wine/-/commit/9e5d54eac4085fa90049a6f52749ae7...

Author: Francois Gouget <fgouget(a)codeweavers.com>
Date:   Wed Feb  8 03:43:27 2023 +0100

ntdll/tests: Minimize the stack size for test_tp_multi_wait().

This test creates 512 threads so the default 2 MB stack size requires
1 GB which can cause out-of-virtual-memory-space issues. So cause
threadpool to use the smallest possible stack size, which should be
1 MB, halving the virtual memory usage.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54064

---

 dlls/ntdll/tests/threadpool.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/dlls/ntdll/tests/threadpool.c b/dlls/ntdll/tests/threadpool.c
index a7457e0a315..d8ca80a99a4 100644
--- a/dlls/ntdll/tests/threadpool.c
+++ b/dlls/ntdll/tests/threadpool.c
@@ -1898,6 +1898,7 @@ static void CALLBACK multi_wait_cb(TP_CALLBACK_INSTANCE *instance, void *userdat
 
 static void test_tp_multi_wait(void)
 {
+    TP_POOL_STACK_INFORMATION stack_info;
     TP_CALLBACK_ENVIRON environment;
     HANDLE semaphores[512];
     TP_WAIT *waits[512];
@@ -1917,6 +1918,11 @@ static void test_tp_multi_wait(void)
     status = pTpAllocPool(&pool, NULL);
     ok(!status, "TpAllocPool failed with status %lx\n", status);
     ok(pool != NULL, "expected pool != NULL\n");
+    /* many threads -> use the smallest stack possible */
+    stack_info.StackReserve = 256 * 1024;
+    stack_info.StackCommit = 4 * 1024;
+    status = pTpSetPoolStackInformation(pool, &stack_info);
+    ok(!status, "TpQueryPoolStackInformation failed: %lx\n", status);
 
     memset(&environment, 0, sizeof(environment));
     environment.Version = 1;