am 858d0dd1: Merge "set /proc/sys/net/unix/max_dgram_qlen to large value"

* commit '858d0dd1e529575181abd8de607e46f7b273cc9d':
  set /proc/sys/net/unix/max_dgram_qlen to large value

include/sysutils/SocketListener.h

@@ -38,6 +38,7 @@ public:
 
     virtual ~SocketListener();
     int startListener();
+    int startListener(int backlog);
     int stopListener();
 
     void sendBroadcast(int code, const char *msg, bool addErrno);

libsysutils/src/SocketListener.cpp

@@ -70,6 +70,10 @@ SocketListener::~SocketListener() {
 }
 
 int SocketListener::startListener() {
+    return startListener(4);
+}
+
+int SocketListener::startListener(int backlog) {
 
     if (!mSocketName && mSock == -1) {
         SLOGE("Failed to start unbound listener");
@@ -84,7 +88,7 @@ int SocketListener::startListener() {
         SLOGV("got mSock = %d for %s", mSock, mSocketName);
     }
 
-    if (mListen && listen(mSock, 4) < 0) {
+    if (mListen && listen(mSock, backlog) < 0) {
         SLOGE("Unable to listen on socket (%s)", strerror(errno));
         return -1;
     } else if (!mListen)

logd/main.cpp

@@ -105,7 +105,8 @@ int main() {
     // and LogReader is notified to send updates to connected clients.
 
     LogListener *swl = new LogListener(logBuf, reader);
-    if (swl->startListener()) {
+    // Backlog and /proc/sys/net/unix/max_dgram_qlen set to large value
+    if (swl->startListener(300)) {
         exit(1);
     }
 

rootdir/init.rc

@@ -100,6 +100,7 @@ loglevel 3
     write /proc/sys/kernel/dmesg_restrict 1
     write /proc/sys/vm/mmap_min_addr 32768
     write /proc/sys/net/ipv4/ping_group_range "0 2147483647"
+    write /proc/sys/net/unix/max_dgram_qlen 300
     write /proc/sys/kernel/sched_rt_runtime_us 950000
     write /proc/sys/kernel/sched_rt_period_us 1000000