From eb8e15f9bb29f8794f8be819530631c358fd6a15 Mon Sep 17 00:00:00 2001
From: Casey Dahlin <sadmac@google.com>
Date: Tue, 3 Nov 2015 13:50:37 -0800
Subject: Add support for reading/writing a vector of binders

Change-Id: Iaa8da704b2ae3c1ca5456177441a335991b40e8a
Test: unit tests pass
Bug: 24470786
Signed-off-by: Casey Dahlin <sadmac@google.com>
---
 libs/binder/Parcel.cpp | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

(limited to 'libs/binder/Parcel.cpp')

diff --git a/libs/binder/Parcel.cpp b/libs/binder/Parcel.cpp
index 694916cf10..db1fc5c265 100644
--- a/libs/binder/Parcel.cpp
+++ b/libs/binder/Parcel.cpp
@@ -1045,6 +1045,56 @@ status_t Parcel::writeStrongBinder(const sp<IBinder>& val)
     return flatten_binder(ProcessState::self(), val, this);
 }
 
+status_t Parcel::writeStrongBinderVector(const std::vector<sp<IBinder>>& val)
+{
+    if (val.size() > std::numeric_limits<int32_t>::max()) {
+        return BAD_VALUE;
+    }
+
+    status_t status = writeInt32(val.size());
+
+    if (status != OK) {
+        return status;
+    }
+
+    for (const auto& item : val) {
+        status = writeStrongBinder(item);
+
+        if (status != OK) {
+            return status;
+        }
+    }
+
+    return OK;
+}
+
+status_t Parcel::readStrongBinderVector(std::vector<sp<IBinder>>* val) const {
+    val->clear();
+
+    int32_t size;
+    status_t status = readInt32(&size);
+
+    if (status != OK) {
+        return status;
+    }
+
+    if (size < 0) {
+        return BAD_VALUE;
+    }
+
+    val->resize(size);
+
+    for (auto& v : *val) {
+        status = readStrongBinder(&v);
+
+        if (status != OK) {
+            return status;
+        }
+    }
+
+    return OK;
+}
+
 status_t Parcel::writeWeakBinder(const wp<IBinder>& val)
 {
     return flatten_binder(ProcessState::self(), val, this);
-- 
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