From f9e7e5f9c2bb0bca16b279527b8e07a360aa05cb Mon Sep 17 00:00:00 2001
From: Lars Jung <lrsjng@gmail.com>
Date: Wed, 9 Jul 2014 02:40:23 +0200
Subject: [PATCH] Add filesize fallback for large files and 32bit PHP.

---
 src/_h5ai/client/js/inc/core/format.js  |  4 ++--
 src/_h5ai/server/php/inc/class-item.php | 28 ++++++++++++++++++++++++-
 2 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/src/_h5ai/client/js/inc/core/format.js b/src/_h5ai/client/js/inc/core/format.js
index 9d6cc225..7991328f 100644
--- a/src/_h5ai/client/js/inc/core/format.js
+++ b/src/_h5ai/client/js/inc/core/format.js
@@ -4,12 +4,12 @@ modulejs.define('core/format', ['_', 'moment'], function (_, moment) {
 	var decimalMetric = {
 			t: 1000.0,
 			k: 1000.0,
-			u: ['B', 'KB', 'MB', 'GB', 'TB']
+			u: ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']
 		},
 		binaryMetric = {
 			t: 1024.0,
 			k: 1024.0,
-			u: ['B', 'KiB', 'MiB', 'GiB', 'TiB']
+			u: ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB']
 		},
 		defaultMetric = decimalMetric,
 		defaultDateFormat = 'YYYY-MM-DD HH:mm',
diff --git a/src/_h5ai/server/php/inc/class-item.php b/src/_h5ai/server/php/inc/class-item.php
index 33643b57..106fa047 100644
--- a/src/_h5ai/server/php/inc/class-item.php
+++ b/src/_h5ai/server/php/inc/class-item.php
@@ -28,7 +28,33 @@ class Item {
 
 		if (is_file($path)) {
 
-			$size = @filesize($path);
+			if (PHP_INT_SIZE < 8) {
+				$_handle = fopen($path, "r");
+
+				$_pos = 0;
+				$_size = 1073741824;
+				fseek($_handle, 0, SEEK_SET);
+				while ($_size > 1) {
+					fseek($_handle, $_size, SEEK_CUR);
+
+					if (fgetc($_handle) === false) {
+						fseek($_handle, -$_size, SEEK_CUR);
+						$_size = (int)($_size / 2);
+					} else {
+						fseek($_handle, -1, SEEK_CUR);
+						$_pos += $_size;
+					}
+				}
+
+				while (fgetc($_handle) !== false) {
+					$_pos++;
+				}
+				fclose($_handle);
+
+				$size = $_pos * 1e20;
+			} else {
+				$size = @filesize($path);
+			}
 
 		} else if (is_dir($path)) {