X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Feal%2Fwindows%2Feal_interrupts.c;h=bb0585cb345f22fb2cc21a72b5f89e3b18a55b29;hb=4042dc2037a1509596f7eb48370185434bad39cc;hp=9cde02b00329002f1a2d06764cf2b220dc96099a;hpb=35dff5d3b7fb0d8e559e0d82d329333f365e7273;p=dpdk.git

diff --git a/lib/eal/windows/eal_interrupts.c b/lib/eal/windows/eal_interrupts.c
index 9cde02b003..bb0585cb34 100644
--- a/lib/eal/windows/eal_interrupts.c
+++ b/lib/eal/windows/eal_interrupts.c
@@ -7,9 +7,12 @@
 #include "eal_private.h"
 #include "eal_windows.h"
 
+#define IOCP_KEY_SHUTDOWN UINT32_MAX
+
 static pthread_t intr_thread;
 
 static HANDLE intr_iocp;
+static HANDLE intr_thread_handle;
 
 static void
 eal_intr_process(const OVERLAPPED_ENTRY *event)
@@ -17,10 +20,30 @@ eal_intr_process(const OVERLAPPED_ENTRY *event)
 	RTE_SET_USED(event);
 }
 
+static int
+eal_intr_thread_handle_init(void)
+{
+	DWORD thread_id = GetCurrentThreadId();
+
+	intr_thread_handle = OpenThread(THREAD_ALL_ACCESS, FALSE, thread_id);
+	if (intr_thread_handle == NULL) {
+		RTE_LOG_WIN32_ERR("OpenThread(%lu)", thread_id);
+		return -1;
+	}
+	return 0;
+}
+
 static void *
 eal_intr_thread_main(LPVOID arg __rte_unused)
 {
-	while (1) {
+	bool finished = false;
+
+	if (eal_intr_thread_handle_init() < 0) {
+		RTE_LOG(ERR, EAL, "Cannot open interrupt thread handle\n");
+		goto cleanup;
+	}
+
+	while (!finished) {
 		OVERLAPPED_ENTRY events[16];
 		ULONG event_count, i;
 		BOOL result;
@@ -42,10 +65,19 @@ eal_intr_thread_main(LPVOID arg __rte_unused)
 			continue;
 		}
 
-		for (i = 0; i < event_count; i++)
+		for (i = 0; i < event_count; i++) {
+			if (events[i].lpCompletionKey == IOCP_KEY_SHUTDOWN) {
+				finished = true;
+				break;
+			}
 			eal_intr_process(&events[i]);
+		}
 	}
 
+	CloseHandle(intr_thread_handle);
+	intr_thread_handle = NULL;
+
+cleanup:
 	intr_thread = 0;
 
 	CloseHandle(intr_iocp);
@@ -93,15 +125,8 @@ rte_intr_rx_ctl(__rte_unused struct rte_intr_handle *intr_handle,
 int
 eal_intr_thread_schedule(void (*func)(void *arg), void *arg)
 {
-	HANDLE handle;
-
-	handle = OpenThread(THREAD_ALL_ACCESS, FALSE, intr_thread);
-	if (handle == NULL) {
-		RTE_LOG_WIN32_ERR("OpenThread(%llu)", intr_thread);
-		return -ENOENT;
-	}
-
-	if (!QueueUserAPC((PAPCFUNC)(ULONG_PTR)func, handle, (ULONG_PTR)arg)) {
+	if (!QueueUserAPC((PAPCFUNC)(ULONG_PTR)func,
+			intr_thread_handle, (ULONG_PTR)arg)) {
 		RTE_LOG_WIN32_ERR("QueueUserAPC()");
 		return -EINVAL;
 	}
@@ -109,6 +134,19 @@ eal_intr_thread_schedule(void (*func)(void *arg), void *arg)
 	return 0;
 }
 
+void
+eal_intr_thread_cancel(void)
+{
+	if (!PostQueuedCompletionStatus(
+			intr_iocp, 0, IOCP_KEY_SHUTDOWN, NULL)) {
+		RTE_LOG_WIN32_ERR("PostQueuedCompletionStatus()");
+		RTE_LOG(ERR, EAL, "Cannot cancel interrupt thread\n");
+		return;
+	}
+
+	WaitForSingleObject(intr_thread_handle, INFINITE);
+}
+
 int
 rte_intr_callback_register(
 	__rte_unused const struct rte_intr_handle *intr_handle,