From 385af286421e983f744f7f5d339b8060ccd36302 Mon Sep 17 00:00:00 2001
From: Igor Sysoev <igor@sysoev.ru>
Date: Wed, 30 Jul 2008 12:34:04 +0000
Subject: directio

---
 src/os/unix/ngx_files.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

(limited to 'src/os/unix/ngx_files.h')

diff --git a/src/os/unix/ngx_files.h b/src/os/unix/ngx_files.h
index 0c080c494..62af63bce 100644
--- a/src/os/unix/ngx_files.h
+++ b/src/os/unix/ngx_files.h
@@ -189,4 +189,22 @@ ngx_err_t ngx_unlock_fd(ngx_fd_t fd);
 #define ngx_unlock_fd_n          "fcntl(F_SETLK, F_UNLCK)"
 
 
+#if (NGX_HAVE_O_DIRECT)
+
+ngx_int_t ngx_directio(ngx_fd_t fd);
+#define ngx_directio_n           "fcntl(O_DIRECT)"
+
+#elif (NGX_HAVE_F_NOCACHE)
+
+#define ngx_directio(fd)         fcntl(fd, F_NOCACHE, 1)
+#define ngx_directio_n           "fcntl(F_NOCACHE)"
+
+#else
+
+#define ngx_directio(fd)         0
+#define ngx_directio_n           "ngx_directio_n"
+
+#endif
+
+
 #endif /* _NGX_FILES_H_INCLUDED_ */
-- 
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