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-rwxr-xr-xmain/php_streams.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/main/php_streams.h b/main/php_streams.h
index 000b4291c3..d6499ce896 100755
--- a/main/php_streams.h
+++ b/main/php_streams.h
@@ -410,8 +410,11 @@ END_EXTERN_C()
#define PHP_STREAM_OPTION_RETURN_NOTIMPL -2 /* underlying stream does not implement; streams can handle it instead */
/* copy up to maxlen bytes from src to dest. If maxlen is PHP_STREAM_COPY_ALL, copy until eof(src).
- * Uses mmap if the src is a plain file and at offset 0 */
-#define PHP_STREAM_COPY_ALL -1
+ * Uses mmap if the src is a plain file and at offset 0
+ * To ensure we don't take up too much memory when reading large files, set the default mmap length
+ * at this many bytes */
+#define PHP_STREAM_COPY_ALL 2000000
+
BEGIN_EXTERN_C()
PHPAPI size_t _php_stream_copy_to_stream(php_stream *src, php_stream *dest, size_t maxlen STREAMS_DC TSRMLS_DC);
#define php_stream_copy_to_stream(src, dest, maxlen) _php_stream_copy_to_stream((src), (dest), (maxlen) STREAMS_CC TSRMLS_CC)