Upgrade libuv to ba1c38f to fix mingw build

deps/uv/config-mingw.mk

@@ -34,8 +34,8 @@ RUNNER_LINKFLAGS=$(LINKFLAGS)
 RUNNER_LIBS=-lws2_32
 RUNNER_SRC=test/runner-win.c
 
-uv.a: uv-win.o uv-common.o $(CARES_OBJS)
-	$(AR) rcs uv.a uv-win.o uv-common.o $(CARES_OBJS)
+uv.a: uv-win.o uv-common.o uv-eio.o eio/eio.o $(CARES_OBJS)
+	$(AR) rcs uv.a uv-win.o uv-common.o uv-eio.o eio/eio.o $(CARES_OBJS)
 
 uv-win.o: uv-win.c uv.h uv-win.h
 	$(CC) $(CFLAGS) -c uv-win.c -o uv-win.o
@@ -43,6 +43,17 @@ uv-win.o: uv-win.c uv.h uv-win.h
 uv-common.o: uv-common.c uv.h uv-win.h
 	$(CC) $(CFLAGS) -c uv-common.c -o uv-common.o
 
+EIO_CPPFLAGS += $(CPPFLAGS)
+EIO_CPPFLAGS += -DEIO_CONFIG_H=\"$(EIO_CONFIG)\"
+EIO_CPPFLAGS += -DEIO_STACKSIZE=65536
+EIO_CPPFLAGS += -D_GNU_SOURCE
+
+eio/eio.o: eio/eio.c
+	$(CC) $(EIO_CPPFLAGS) $(CFLAGS) -c eio/eio.c -o eio/eio.o
+
+uv-eio.o: uv-eio.c
+	$(CC) $(CPPFLAGS) -Ieio/ $(CFLAGS) -c uv-eio.c -o uv-eio.o
+
 clean-platform:
 	-rm -f c-ares/*.o
 

deps/uv/eio/xthread.h

@@ -22,7 +22,9 @@ typedef int ssize_t
 #endif
 
 #define NTDDI_VERSION NTDDI_WIN2K // needed to get win2000 api calls
+#ifndef _WIN32_WINNT
 #define _WIN32_WINNT 0x400
+#endif
 #include <stdio.h>//D
 #include <fcntl.h>
 #include <io.h>

deps/uv/test/test-hrtime.c

@@ -41,7 +41,7 @@ TEST_IMPL(hrtime) {
   uint64_t a, b, diff;
 
   a = uv_hrtime();
-  uv_sleep(1);
+  uv_sleep(100);
   b = uv_hrtime();
 
   diff = b - a;
@@ -49,5 +49,6 @@ TEST_IMPL(hrtime) {
   printf("diff = %llu\n", diff);
 
   ASSERT(diff >= NANOSEC / MICROSEC);
+  ASSERT(diff > MICROSEC);
   return 0;
 }

deps/uv/uv-linux.c

@@ -25,7 +25,7 @@
 #include <time.h>
 
 #undef NANOSEC
-#define NANOSEC 1000000
+#define NANOSEC 1000000000
 
 /*
  * There's probably some way to get time from Linux than gettimeofday(). What