[dpdk-dev] [PATCH v2] eal/windows: fix invalid thread handle

[Tasnim Bashar]

Casting thread ID to handle is not accurate way to get thread handle.
Need to use OpenThread function to get thread handle from thread ID.

pthread_setaffinity_np and pthread_getaffinity_np functions
for Windows are affected because of it.

Signed-off-by: Tasnim Bashar <tbas...@mellanox.com>
---
 lib/librte_eal/windows/include/pthread.h     | 56 ++++++++++++++++----
 lib/librte_eal/windows/include/rte_windows.h |  1 +
 2 files changed, 47 insertions(+), 10 deletions(-)

diff --git a/lib/librte_eal/windows/include/pthread.h 
b/lib/librte_eal/windows/include/pthread.h
index 0bbed5c3b8..88dab36b79 100644
--- a/lib/librte_eal/windows/include/pthread.h
+++ b/lib/librte_eal/windows/include/pthread.h
@@ -16,8 +16,8 @@
 extern "C" {
 #endif
 
-#include <windows.h>
 #include <rte_common.h>
+#include <rte_windows.h>
 
 #define PTHREAD_BARRIER_SERIAL_THREAD TRUE
 
@@ -41,31 +41,67 @@ typedef SYNCHRONIZATION_BARRIER pthread_barrier_t;
 #define pthread_self() \
        ((pthread_t)GetCurrentThreadId())
 #define pthread_setaffinity_np(thread, size, cpuset) \
-       eal_set_thread_affinity_mask(thread, (unsigned long *) cpuset)
+       eal_set_thread_affinity_mask(thread, (long long *) cpuset)
 #define pthread_getaffinity_np(thread, size, cpuset) \
-       eal_get_thread_affinity_mask(thread, (unsigned long *) cpuset)
+       eal_get_thread_affinity_mask(thread, (long long *) cpuset)
 #define pthread_create(threadid, threadattr, threadfunc, args) \
        eal_create_thread(threadid, threadfunc, args)
 
 static inline int
-eal_set_thread_affinity_mask(pthread_t threadid, unsigned long *cpuset)
+eal_set_thread_affinity_mask(pthread_t threadid, long long *cpuset)
 {
-       SetThreadAffinityMask((HANDLE) threadid, *cpuset);
+       DWORD_PTR ret;
+       HANDLE thread_handle;
+
+       thread_handle = OpenThread(THREAD_ALL_ACCESS, FALSE, threadid);
+       if (thread_handle == NULL) {
+               RTE_LOG_WIN32_ERR("OpenThread()");
+               return -1;
+       }
+
+       ret = SetThreadAffinityMask(thread_handle, *cpuset);
+       if (ret == 0) {
+               RTE_LOG_WIN32_ERR("SetThreadAffinityMask()");
+               CloseHandle(thread_handle);
+               return -1;
+       }
+       CloseHandle(thread_handle);
        return 0;
 }
 
 static inline int
-eal_get_thread_affinity_mask(pthread_t threadid, unsigned long *cpuset)
+eal_get_thread_affinity_mask(pthread_t threadid, long long *cpuset)
 {
        /* Workaround for the lack of a GetThreadAffinityMask()
         *API in Windows
         */
-               /* obtain previous mask by setting dummy mask */
-       DWORD dwprevaffinitymask =
-               SetThreadAffinityMask((HANDLE) threadid, 0x1);
+       DWORD_PTR dwprevaffinitymask;
+       HANDLE thread_handle;
+       DWORD_PTR ret;
+
+       thread_handle = OpenThread(THREAD_ALL_ACCESS, FALSE, threadid);
+       if (thread_handle == NULL) {
+               RTE_LOG_WIN32_ERR("OpenThread()");
+               return -1;
+       }
+
+       /* obtain previous mask by setting dummy mask */
+       dwprevaffinitymask = SetThreadAffinityMask(thread_handle, 0x1);
+       if (dwprevaffinitymask == 0) {
+               RTE_LOG_WIN32_ERR("SetThreadAffinityMask()");
+               CloseHandle(thread_handle);
+               return -1;
+       }
+
        /* set it back! */
-       SetThreadAffinityMask((HANDLE) threadid, dwprevaffinitymask);
+       ret = SetThreadAffinityMask(thread_handle, dwprevaffinitymask);
+       if (ret == 0) {
+               RTE_LOG_WIN32_ERR("SetThreadAffinityMask()");
+               CloseHandle(thread_handle);
+               return -1;
+       }
        *cpuset = dwprevaffinitymask;
+       CloseHandle(thread_handle);
        return 0;
 }
 
diff --git a/lib/librte_eal/windows/include/rte_windows.h 
b/lib/librte_eal/windows/include/rte_windows.h
index ed6e4c1485..677b63c42d 100644
--- a/lib/librte_eal/windows/include/rte_windows.h
+++ b/lib/librte_eal/windows/include/rte_windows.h
@@ -29,6 +29,7 @@
 #define INITGUID
 #endif
 #include <initguid.h>
+#include <rte_log.h>
 
 /**
  * Log GetLastError() with context, usually a Win32 API function and arguments.
-- 
2.19.1.windows.1