[PATCH 3/3] ntdll/tests: Minimize the stack size for test_tp_multi_wait().

[Francois Gouget]

From: Francois Gouget

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.
---
 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 c2991a2ad57..0fd10ad196f 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;