commit c8489c9675f93c0a0831de86b803cd2456ddde9b
author Jerry Zhang <zhangjerry@google.com> Fri Feb 10 17:45:27 2017 -0800
committer Jerry Zhang <zhangjerry@google.com> Mon Feb 13 18:19:36 2017 -0800
tree 31473088b9913ffbcafe45ee5cfed2498a023ca4
parent df14d70a54d0c0b5f9daa44af3cf294cbefed87c

adb: Set max socket sizes to larger values.

This improves performance of push/pull.

Test: adb push/pull multi GB files.
Bug: 31722483
Change-Id: Ia01574c3db6a740d7a7e64ba1f5bc1fc279fb3f6

adb/adb.h

diff --git a/adb/adb.h b/adb/adb.h
index 6a38f18..a30e297 100644
--- a/adb/adb.h
+++ b/adb/adb.h
@@ -34,6 +34,8 @@
 constexpr size_t MAX_PAYLOAD_V2 = 256 * 1024;
 constexpr size_t MAX_PAYLOAD = MAX_PAYLOAD_V2;
 
+constexpr size_t LINUX_MAX_SOCKET_SIZE = 4194304;
+
 #define A_SYNC 0x434e5953
 #define A_CNXN 0x4e584e43
 #define A_OPEN 0x4e45504f

adb/services.cpp

diff --git a/adb/services.cpp b/adb/services.cpp
index df1b134..a48d855 100644
--- a/adb/services.cpp
+++ b/adb/services.cpp
@@ -242,6 +242,15 @@
     }
     D("socketpair: (%d,%d)", s[0], s[1]);
 
+#if !ADB_HOST
+    if (func == &file_sync_service) {
+        // Set file sync service socket to maximum size
+        int max_buf = LINUX_MAX_SOCKET_SIZE;
+        adb_setsockopt(s[0], SOL_SOCKET, SO_SNDBUF, &max_buf, sizeof(max_buf));
+        adb_setsockopt(s[1], SOL_SOCKET, SO_SNDBUF, &max_buf, sizeof(max_buf));
+    }
+#endif // !ADB_HOST
+
     stinfo* sti = reinterpret_cast<stinfo*>(malloc(sizeof(stinfo)));
     if (sti == nullptr) {
         fatal("cannot allocate stinfo");