2 files changed, 14 insertions, 0 deletions
diff --git a/src/os/win32/ngx_files.c b/src/os/win32/ngx_files.c
index 0b131b58a..3017b45fe 100644
--- a/src/os/win32/ngx_files.c
+++ b/src/os/win32/ngx_files.c
@@ -658,6 +658,19 @@ ngx_fs_bsize(u_char *name)
 }
 
 
+off_t
+ngx_fs_available(u_char *name)
+{
+    ULARGE_INTEGER  navail;
+
+    if (GetDiskFreeSpaceEx((const char *) name, &navail, NULL, NULL) == 0) {
+        return NGX_MAX_OFF_T_VALUE;
+    }
+
+    return (off_t) navail.QuadPart;
+}
+
+
 static ngx_int_t
 ngx_win32_check_filename(u_char *name, u_short *u, size_t len)
 {
diff --git a/src/os/win32/ngx_files.h b/src/os/win32/ngx_files.h
index 6eb720e78..a10839ba4 100644
--- a/src/os/win32/ngx_files.h
+++ b/src/os/win32/ngx_files.h
@@ -259,6 +259,7 @@ ngx_int_t ngx_directio_off(ngx_fd_t fd);
 #define ngx_directio_off_n          "ngx_directio_off_n"
 
 size_t ngx_fs_bsize(u_char *name);
+off_t ngx_fs_available(u_char *name);
 
 
 #define ngx_stdout               GetStdHandle(STD_OUTPUT_HANDLE)