From 3c62b67faf8a25f1dd1c44dc19759c3997fdfd36 Mon Sep 17 00:00:00 2001
From: Tianjie Xu <xunchang@google.com>
Date: Fri, 5 Feb 2016 18:25:58 -0800
Subject: Reboot and retry on I/O errors

When I/O error happens, reboot and retry installation two times
before we abort this OTA update.

Bug: 25633753
Change-Id: Iba6d4203a343a725aa625a41d237606980d62f69
---
 install.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'install.cpp')

diff --git a/install.cpp b/install.cpp
index 33c1f5498..144a353d6 100644
--- a/install.cpp
+++ b/install.cpp
@@ -144,6 +144,7 @@ try_update_binary(const char* path, ZipArchive* zip, bool* wipe_cache) {
     close(pipefd[1]);
 
     *wipe_cache = false;
+    bool retry_update = false;
 
     char buffer[1024];
     FILE* from_child = fdopen(pipefd[0], "r");
@@ -180,6 +181,8 @@ try_update_binary(const char* path, ZipArchive* zip, bool* wipe_cache) {
             // to be able to reboot during installation (useful for
             // debugging packages that don't exit).
             ui->SetEnableReboot(true);
+        } else if (strcmp(command, "retry_update") == 0) {
+            retry_update = true;
         } else {
             LOGE("unknown command [%s]\n", command);
         }
@@ -188,6 +191,9 @@ try_update_binary(const char* path, ZipArchive* zip, bool* wipe_cache) {
 
     int status;
     waitpid(pid, &status, 0);
+    if (retry_update) {
+        return INSTALL_RETRY;
+    }
     if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
         LOGE("Error in %s\n(Status %d)\n", path, WEXITSTATUS(status));
         return INSTALL_ERROR;
-- 
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