Update Windows code to fix build breakage

MinGW has been updated: this causes problems due to changes in header
files, including COM stuff being pulled in resulting in 'interface' being
a reserved keyword, and changes to a few POSIX definitions.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/engines/net.c b/engines/net.c
index 0c90e1c..52cc8a7 100644
--- a/engines/net.c
+++ b/engines/net.c
@@ -38,7 +38,7 @@
 	unsigned int pingpong;
 	unsigned int nodelay;
 	unsigned int ttl;
-	char * interface;
+	char *intfc;
 };
 
 struct udp_close_msg {
@@ -134,7 +134,7 @@
 		.name	= "interface",
 		.lname	= "net engine interface",
 		.type	= FIO_OPT_STR_STORE,
-		.off1	= offsetof(struct netio_options, interface),
+		.off1	= offsetof(struct netio_options, intfc),
 		.help	= "Network interface to use",
 		.category = FIO_OPT_C_ENGINE,
 		.group	= FIO_OPT_G_NETIO,
@@ -557,20 +557,20 @@
 		if (!fio_netio_is_multicast(td->o.filename))
 			return 0;
 
-		if (o->interface) {
+		if (o->intfc) {
 			struct in_addr interface_addr;
-			if (inet_aton(o->interface, &interface_addr) == 0) {
+			if (inet_aton(o->intfc, &interface_addr) == 0) {
 				log_err("fio: interface not valid interface IP\n");
 				close(f->fd);
 				return 1;
 			}
-			if (setsockopt(f->fd, IPPROTO_IP, IP_MULTICAST_IF, &interface_addr, sizeof(interface_addr)) < 0) {
+			if (setsockopt(f->fd, IPPROTO_IP, IP_MULTICAST_IF, (const char*)&interface_addr, sizeof(interface_addr)) < 0) {
 				td_verror(td, errno, "setsockopt IP_MULTICAST_IF");
 				close(f->fd);
 				return 1;
 			}
 		}
-		if (setsockopt(f->fd, IPPROTO_IP, IP_MULTICAST_TTL, &o->ttl, sizeof(o->ttl)) < 0) {
+		if (setsockopt(f->fd, IPPROTO_IP, IP_MULTICAST_TTL, (const char*)&o->ttl, sizeof(o->ttl)) < 0) {
 			td_verror(td, errno, "setsockopt IP_MULTICAST_TTL");
 			close(f->fd);
 			return 1;
@@ -884,8 +884,8 @@
 		inet_aton(td->o.filename, &sin.sin_addr);
 
 		mr.imr_multiaddr = sin.sin_addr;
-		if (o->interface) {
-			if (inet_aton(o->interface, &mr.imr_interface) == 0) {
+		if (o->intfc) {
+			if (inet_aton(o->intfc, &mr.imr_interface) == 0) {
 				log_err("fio: interface not valid interface IP\n");
 				close(fd);
 				return 1;
@@ -893,7 +893,7 @@
 		} else {
 			mr.imr_interface.s_addr = htonl(INADDR_ANY);
 		}
-		if (setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mr, sizeof(mr)) < 0) {
+		if (setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (const char*)&mr, sizeof(mr)) < 0) {
 			td_verror(td, errno, "setsockopt IP_ADD_MEMBERSHIP");
 			close(fd);
 			return 1;
diff --git a/os/os-windows.h b/os/os-windows.h
index 4f4e2bb..de120b6 100644
--- a/os/os-windows.h
+++ b/os/os-windows.h
@@ -18,6 +18,10 @@
 
 #include "windows/posix.h"
 
+#ifndef PTHREAD_STACK_MIN
+#define PTHREAD_STACK_MIN 65535
+#endif
+
 #define FIO_HAVE_ODIRECT
 #define FIO_HAVE_CPU_AFFINITY
 #define FIO_HAVE_CHARDEV_SIZE
@@ -38,9 +42,6 @@
 
 typedef DWORD_PTR os_cpu_mask_t;
 
-#define CLOCK_REALTIME	1
-#define CLOCK_MONOTONIC	2
-
 #define _SC_PAGESIZE			0x1
 #define _SC_NPROCESSORS_ONLN	0x2
 #define _SC_PHYS_PAGES			0x4
@@ -115,7 +116,6 @@
 	HANDLE hFile;
 	GET_LENGTH_INFORMATION info;
 	DWORD outBytes;
-	LARGE_INTEGER size;
 
 	if (f->hFile == NULL) {
 		hFile = CreateFile(f->file_name, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
@@ -124,7 +124,6 @@
 		hFile = f->hFile;
 	}
 
-	size.QuadPart = 0;
 	if (DeviceIoControl(hFile, IOCTL_DISK_GET_LENGTH_INFO, NULL, 0, &info, sizeof(info), &outBytes, NULL))
 		*bytes = info.Length.QuadPart;
 	else
diff --git a/os/windows/posix.c b/os/windows/posix.c
index 49bce43..8153b45 100755
--- a/os/windows/posix.c
+++ b/os/windows/posix.c
@@ -12,6 +12,7 @@
 #include <unistd.h>
 #include <dirent.h>
 #include <pthread.h>
+#include <time.h>
 #include <semaphore.h>
 #include <sys/shm.h>
 #include <sys/mman.h>
@@ -872,6 +873,14 @@
 	return -1;
 }
 
+in_addr_t inet_network(const char *cp)
+{
+	in_addr_t hbo;
+	in_addr_t nbo = inet_addr(cp);
+	hbo = ((nbo & 0xFF) << 24) + ((nbo & 0xFF00) << 8) + ((nbo & 0xFF0000) >> 8) + ((nbo & 0xFF000000) >> 24);
+	return hbo;
+}
+
 const char* inet_ntop(int af, const void *restrict src,
 		char *restrict dst, socklen_t size)
 {
diff --git a/os/windows/posix/include/arpa/inet.h b/os/windows/posix/include/arpa/inet.h
index 7e3bfb7..59c50ad 100644
--- a/os/windows/posix/include/arpa/inet.h
+++ b/os/windows/posix/include/arpa/inet.h
@@ -5,6 +5,19 @@
 #include <inttypes.h>
 
 typedef int socklen_t;
+typedef int in_addr_t;
+
+#define IP_MULTICAST_IF 2
+#define IP_MULTICAST_TTL 3
+#define IP_ADD_MEMBERSHIP 5
+
+struct ip_mreq
+{
+	struct in_addr imr_multiaddr;
+	struct in_addr imr_interface;
+};
+
+in_addr_t inet_network(const char *cp);
 
 const char *inet_ntop(int af, const void *restrict src,
         char *restrict dst, socklen_t size);