libmicrohttpd

commit a78b44a8329d770e0c97e2f38c62c0a1c2bedc47
parent 588d2c38a261889de9a8f0877ad30fb8565d1434
Author: Evgeny Grin (Karlson2k) <k2k@narod.ru>
Date:   Tue,  9 Jun 2015 19:34:36 +0000

Add MHD_FEATURE_LARGE_FILE value for MHD_is_feature_supported()

Diffstat:
M
src/include/microhttpd.h
 | 
18
++++++++++++++----
M
src/microhttpd/daemon.c
 | 
6
++++++
M
src/microhttpd/response.c
 | 
6
+++---

3 files changed, 23 insertions(+), 7 deletions(-)
diff --git a/src/include/microhttpd.h b/src/include/microhttpd.h
@@ -2087,7 +2087,7 @@ MHD_create_response_from_fd (size_t size,
  *
  * @param size size of the data portion of the response;
  *        sizes larger than 2 GiB may be not supported by OS or
- *        MHD build
+ *        MHD build; see ::MHD_FEATURE_LARGE_FILE
  * @param fd file descriptor referring to a file on disk with the
  *        data; will be closed when response is destroyed;
  *        fd should be in 'blocking' mode
@@ -2128,13 +2128,13 @@ MHD_create_response_from_fd_at_offset (size_t size,
  *
  * @param size size of the data portion of the response;
  *        sizes larger than 2 GiB may be not supported by OS or
- *        MHD build
+ *        MHD build; see ::MHD_FEATURE_LARGE_FILE
  * @param fd file descriptor referring to a file on disk with the
  *        data; will be closed when response is destroyed;
  *        fd should be in 'blocking' mode
  * @param offset offset to start reading from in the file;
  *        reading file beyond 2 GiB may be not supported by OS or
- *        MHD build
+ *        MHD build; see ::MHD_FEATURE_LARGE_FILE
  * @return NULL on error (i.e. invalid arguments, out of memory)
  * @ingroup response
  */
@@ -2740,7 +2740,17 @@ enum MHD_FEATURE
   * supported. If supported then option
   * ::MHD_OPTION_HTTPS_KEY_PASSWORD can be used.
   */
-  MHD_FEATURE_HTTPS_KEY_PASSWORD = 14
+  MHD_FEATURE_HTTPS_KEY_PASSWORD = 14,
+
+  /**
+   * Get whether reading files beyond 2 GiB boundary is supported.
+   * If supported then #MHD_create_response_from_fd(), 
+   * #MHD_create_response_from_fd64 #MHD_create_response_from_fd_at_offset()
+   * and #MHD_create_response_from_fd_at_offset64() can be used with sizes and
+   * offsets larger than 2 GiB. If not supported value of size+offset is
+   * limited to 2 GiB.
+   */
+  MHD_FEATURE_LARGE_FILE = 15
 };
 
 
diff --git a/src/microhttpd/daemon.c b/src/microhttpd/daemon.c
@@ -4768,6 +4768,12 @@ MHD_is_feature_supported(enum MHD_FEATURE feature)
 #else
       return MHD_NO;
 #endif
+    case MHD_FEATURE_LARGE_FILE:
+#if defined(HAVE___LSEEKI64) || defined(HAVE_LSEEK64)
+      return MHD_YES;
+#else
+      return (sizeof(uint64_t) > sizeof(off_t)) ? MHD_NO : MHD_YES;
+#endif
     }
   return MHD_NO;
 }
diff --git a/src/microhttpd/response.c b/src/microhttpd/response.c
@@ -410,13 +410,13 @@ MHD_create_response_from_fd_at_offset (size_t size,
  *
  * @param size size of the data portion of the response;
  *        sizes larger than 2 GiB may be not supported by OS or
- *        MHD build
+ *        MHD build; see ::MHD_FEATURE_LARGE_FILE
  * @param fd file descriptor referring to a file on disk with the
  *        data; will be closed when response is destroyed;
  *        fd should be in 'blocking' mode
  * @param offset offset to start reading from in the file;
  *        reading file beyond 2 GiB may be not supported by OS or
- *        MHD build
+ *        MHD build; see ::MHD_FEATURE_LARGE_FILE
  * @return NULL on error (i.e. invalid arguments, out of memory)
  * @ingroup response
  */
@@ -472,7 +472,7 @@ MHD_create_response_from_fd (size_t size,
  *
  * @param size size of the data portion of the response;
  *        sizes larger than 2 GiB may be not supported by OS or
- *        MHD build
+ *        MHD build; see ::MHD_FEATURE_LARGE_FILE
  * @param fd file descriptor referring to a file on disk with the
  *        data; will be closed when response is destroyed;
  *        fd should be in 'blocking' mode