Pulled a significant portion of Socket implementation into BaseSocket in order to prepare for the s…

runtime/bin/socket_common_linux.cc

Index: runtime/bin/socket_common_linux.cc
diff --git a/runtime/bin/socket_linux.cc b/runtime/bin/socket_common_linux.cc
similarity index 83%
rename from runtime/bin/socket_linux.cc
rename to runtime/bin/socket_common_linux.cc
index af5387879c25dc2264d90a96fc3c33a0b4ca245c..8856aaf46d947a12a0a3ae47803b0bd04775eb9b 100644
--- a/runtime/bin/socket_linux.cc
+++ b/runtime/bin/socket_common_linux.cc
@@ -8,7 +8,7 @@
 #if defined(TARGET_OS_LINUX)
 
 #include "bin/socket.h"
-#include "bin/socket_linux.h"
+#include "bin/socket_common_linux.h"
 
 #include <errno.h>        // NOLINT
 #include <ifaddrs.h>      // NOLINT
@@ -39,14 +39,16 @@ SocketAddress::SocketAddress(struct sockaddr* sa) {
 }
 
 
-bool Socket::FormatNumericAddress(const RawAddr& addr, char* address, int len) {
+bool BaseSocket::FormatNumericAddress(const RawAddr& addr,
+                                      char* address,
+                                      int len) {
   socklen_t salen = SocketAddress::GetAddrLength(addr);
   return (NO_RETRY_EXPECTED(getnameinfo(&addr.addr, salen, address, len, NULL,
                                         0, NI_NUMERICHOST) == 0));
 }
 
 
-bool Socket::Initialize() {
+bool BaseSocket::Initialize() {
   // Nothing to do on Linux.
   return true;
 }
@@ -54,8 +56,8 @@ bool Socket::Initialize() {
 
 static intptr_t Create(const RawAddr& addr) {
   intptr_t fd;
-  fd = NO_RETRY_EXPECTED(
-      socket(addr.ss.ss_family, SOCK_STREAM | SOCK_NONBLOCK | SOCK_CLOEXEC, 0));
+  intptr_t type = SOCK_STREAM | SOCK_NONBLOCK | SOCK_CLOEXEC;
+  fd = NO_RETRY_EXPECTED(socket(addr.ss.ss_family, type, 0));
   if (fd < 0) {
     return -1;
   }
@@ -101,18 +103,18 @@ intptr_t Socket::CreateBindConnect(const RawAddr& addr,
 }
 
 
-bool Socket::IsBindError(intptr_t error_number) {
+bool BaseSocket::IsBindError(intptr_t error_number) {
   return error_number == EADDRINUSE || error_number == EADDRNOTAVAIL ||
          error_number == EINVAL;
 }
 
 
-intptr_t Socket::Available(intptr_t fd) {
+intptr_t BaseSocket::Available(intptr_t fd) {
   return FDUtils::AvailableBytes(fd);
 }
 
 
-intptr_t Socket::Read(intptr_t fd, void* buffer, intptr_t num_bytes) {
+intptr_t BaseSocket::Read(intptr_t fd, void* buffer, intptr_t num_bytes) {
   ASSERT(fd >= 0);
   ssize_t read_bytes = TEMP_FAILURE_RETRY(read(fd, buffer, num_bytes));
   ASSERT(EAGAIN == EWOULDBLOCK);
@@ -125,10 +127,10 @@ intptr_t Socket::Read(intptr_t fd, void* buffer, intptr_t num_bytes) {
 }
 
 
-intptr_t Socket::RecvFrom(intptr_t fd,
-                          void* buffer,
-                          intptr_t num_bytes,
-                          RawAddr* addr) {
+intptr_t BaseSocket::RecvFrom(intptr_t fd,
+                              void* buffer,
+                              intptr_t num_bytes,
+                              RawAddr* addr) {
   ASSERT(fd >= 0);
   socklen_t addr_len = sizeof(addr->ss);
   ssize_t read_bytes = TEMP_FAILURE_RETRY(
@@ -142,7 +144,9 @@ intptr_t Socket::RecvFrom(intptr_t fd,
 }
 
 
-intptr_t Socket::Write(intptr_t fd, const void* buffer, intptr_t num_bytes) {
+intptr_t BaseSocket::Write(intptr_t fd,
+                           const void* buffer,
+                           intptr_t num_bytes) {
   ASSERT(fd >= 0);
   ssize_t written_bytes = TEMP_FAILURE_RETRY(write(fd, buffer, num_bytes));
   ASSERT(EAGAIN == EWOULDBLOCK);
@@ -155,10 +159,10 @@ intptr_t Socket::Write(intptr_t fd, const void* buffer, intptr_t num_bytes) {
 }
 
 
-intptr_t Socket::SendTo(intptr_t fd,
-                        const void* buffer,
-                        intptr_t num_bytes,
-                        const RawAddr& addr) {
+intptr_t BaseSocket::SendTo(intptr_t fd,
+                            const void* buffer,
+                            intptr_t num_bytes,
+                            const RawAddr& addr) {
   ASSERT(fd >= 0);
   ssize_t written_bytes =
       TEMP_FAILURE_RETRY(sendto(fd, buffer, num_bytes, 0, &addr.addr,
@@ -173,7 +177,7 @@ intptr_t Socket::SendTo(intptr_t fd,
 }
 
 
-intptr_t Socket::GetPort(intptr_t fd) {
+intptr_t BaseSocket::GetPort(intptr_t fd) {
   ASSERT(fd >= 0);
   RawAddr raw;
   socklen_t size = sizeof(raw);
@@ -184,7 +188,7 @@ intptr_t Socket::GetPort(intptr_t fd) {
 }
 
 
-SocketAddress* Socket::GetRemotePeer(intptr_t fd, intptr_t* port) {
+SocketAddress* BaseSocket::GetRemotePeer(intptr_t fd, intptr_t* port) {
   ASSERT(fd >= 0);
   RawAddr raw;
   socklen_t size = sizeof(raw);
@@ -196,7 +200,7 @@ SocketAddress* Socket::GetRemotePeer(intptr_t fd, intptr_t* port) {
 }
 
 
-void Socket::GetError(intptr_t fd, OSError* os_error) {
+void BaseSocket::GetError(intptr_t fd, OSError* os_error) {
   int len = sizeof(errno);
   int err = 0;
   VOID_NO_RETRY_EXPECTED(getsockopt(fd, SOL_SOCKET, SO_ERROR, &err,
@@ -206,7 +210,7 @@ void Socket::GetError(intptr_t fd, OSError* os_error) {
 }
 
 
-int Socket::GetType(intptr_t fd) {
+int BaseSocket::GetType(intptr_t fd) {
   struct stat64 buf;
   int result = TEMP_FAILURE_RETRY(fstat64(fd, &buf));
   if (result == -1) {
@@ -225,14 +229,14 @@ int Socket::GetType(intptr_t fd) {
 }
 
 
-intptr_t Socket::GetStdioHandle(intptr_t num) {
+intptr_t BaseSocket::GetStdioHandle(intptr_t num) {
   return num;
 }
 
 
-AddressList<SocketAddress>* Socket::LookupAddress(const char* host,
-                                                  int type,
-                                                  OSError** os_error) {
+AddressList<SocketAddress>* BaseSocket::LookupAddress(const char* host,
+                                                      int type,
+                                                      OSError** os_error) {
   // Perform a name lookup for a host name.
   struct addrinfo hints;
   memset(&hints, 0, sizeof(hints));
@@ -273,10 +277,10 @@ AddressList<SocketAddress>* Socket::LookupAddress(const char* host,
 }
 
 
-bool Socket::ReverseLookup(const RawAddr& addr,
-                           char* host,
-                           intptr_t host_len,
-                           OSError** os_error) {
+bool BaseSocket::ReverseLookup(const RawAddr& addr,
+                               char* host,
+                               intptr_t host_len,
+                               OSError** os_error) {
   ASSERT(host_len >= NI_MAXHOST);
   int status = NO_RETRY_EXPECTED(
       getnameinfo(&addr.addr, SocketAddress::GetAddrLength(addr), host,
@@ -291,7 +295,7 @@ bool Socket::ReverseLookup(const RawAddr& addr,
 }
 
 
-bool Socket::ParseAddress(int type, const char* address, RawAddr* addr) {
+bool BaseSocket::ParseAddress(int type, const char* address, RawAddr* addr) {
   int result;
   if (type == SocketAddress::TYPE_IPV4) {
     result = NO_RETRY_EXPECTED(inet_pton(AF_INET, address, &addr->in.sin_addr));
@@ -341,12 +345,12 @@ static bool ShouldIncludeIfaAddrs(struct ifaddrs* ifa, int lookup_family) {
 }
 
 
-bool Socket::ListInterfacesSupported() {
+bool BaseSocket::ListInterfacesSupported() {
   return true;
 }
 
 
-AddressList<InterfaceSocketAddress>* Socket::ListInterfaces(
+AddressList<InterfaceSocketAddress>* BaseSocket::ListInterfaces(
     int type,
     OSError** os_error) {
   struct ifaddrs* ifaddr;
@@ -474,13 +478,13 @@ intptr_t ServerSocket::Accept(intptr_t fd) {
 }
 
 
-void Socket::Close(intptr_t fd) {
+void BaseSocket::Close(intptr_t fd) {
   ASSERT(fd >= 0);
   VOID_TEMP_FAILURE_RETRY(close(fd));
 }
 
 
-bool Socket::GetNoDelay(intptr_t fd, bool* enabled) {
+bool BaseSocket::GetNoDelay(intptr_t fd, bool* enabled) {
   int on;
   socklen_t len = sizeof(on);
   int err = NO_RETRY_EXPECTED(getsockopt(fd, IPPROTO_TCP, TCP_NODELAY,
@@ -492,7 +496,7 @@ bool Socket::GetNoDelay(intptr_t fd, bool* enabled) {
 }
 
 
-bool Socket::SetNoDelay(intptr_t fd, bool enabled) {
+bool BaseSocket::SetNoDelay(intptr_t fd, bool enabled) {
   int on = enabled ? 1 : 0;
   return NO_RETRY_EXPECTED(setsockopt(fd, IPPROTO_TCP, TCP_NODELAY,
                                       reinterpret_cast<char*>(&on),
@@ -500,7 +504,9 @@ bool Socket::SetNoDelay(intptr_t fd, bool enabled) {
 }
 
 
-bool Socket::GetMulticastLoop(intptr_t fd, intptr_t protocol, bool* enabled) {
+bool BaseSocket::GetMulticastLoop(intptr_t fd,
+                                  intptr_t protocol,
+                                  bool* enabled) {
   uint8_t on;
   socklen_t len = sizeof(on);
   int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
@@ -515,7 +521,9 @@ bool Socket::GetMulticastLoop(intptr_t fd, intptr_t protocol, bool* enabled) {
 }
 
 
-bool Socket::SetMulticastLoop(intptr_t fd, intptr_t protocol, bool enabled) {
+bool BaseSocket::SetMulticastLoop(intptr_t fd,
+                                  intptr_t protocol,
+                                  bool enabled) {
   int on = enabled ? 1 : 0;
   int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
   int optname = protocol == SocketAddress::TYPE_IPV4 ? IP_MULTICAST_LOOP
@@ -526,7 +534,7 @@ bool Socket::SetMulticastLoop(intptr_t fd, intptr_t protocol, bool enabled) {
 }
 
 
-bool Socket::GetMulticastHops(intptr_t fd, intptr_t protocol, int* value) {
+bool BaseSocket::GetMulticastHops(intptr_t fd, intptr_t protocol, int* value) {
   uint8_t v;
   socklen_t len = sizeof(v);
   int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
@@ -541,7 +549,7 @@ bool Socket::GetMulticastHops(intptr_t fd, intptr_t protocol, int* value) {
 }
 
 
-bool Socket::SetMulticastHops(intptr_t fd, intptr_t protocol, int value) {
+bool BaseSocket::SetMulticastHops(intptr_t fd, intptr_t protocol, int value) {
   int v = value;
   int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6;
   int optname = protocol == SocketAddress::TYPE_IPV4 ? IP_MULTICAST_TTL
@@ -551,7 +559,7 @@ bool Socket::SetMulticastHops(intptr_t fd, intptr_t protocol, int value) {
 }
 
 
-bool Socket::GetBroadcast(intptr_t fd, bool* enabled) {
+bool BaseSocket::GetBroadcast(intptr_t fd, bool* enabled) {
   int on;
   socklen_t len = sizeof(on);
   int err = NO_RETRY_EXPECTED(getsockopt(fd, SOL_SOCKET, SO_BROADCAST,
@@ -563,7 +571,7 @@ bool Socket::GetBroadcast(intptr_t fd, bool* enabled) {
 }
 
 
-bool Socket::SetBroadcast(intptr_t fd, bool enabled) {
+bool BaseSocket::SetBroadcast(intptr_t fd, bool enabled) {
   int on = enabled ? 1 : 0;
   return NO_RETRY_EXPECTED(setsockopt(fd, SOL_SOCKET, SO_BROADCAST,
                                       reinterpret_cast<char*>(&on),
@@ -571,10 +579,10 @@ bool Socket::SetBroadcast(intptr_t fd, bool enabled) {
 }
 
 
-bool Socket::JoinMulticast(intptr_t fd,
-                           const RawAddr& addr,
-                           const RawAddr&,
-                           int interfaceIndex) {
+bool BaseSocket::JoinMulticast(intptr_t fd,
+                               const RawAddr& addr,
+                               const RawAddr&,
+                               int interfaceIndex) {
   int proto = addr.addr.sa_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
   struct group_req mreq;
   mreq.gr_interface = interfaceIndex;
@@ -584,10 +592,10 @@ bool Socket::JoinMulticast(intptr_t fd,
 }
 
 
-bool Socket::LeaveMulticast(intptr_t fd,
-                            const RawAddr& addr,
-                            const RawAddr&,
-                            int interfaceIndex) {
+bool BaseSocket::LeaveMulticast(intptr_t fd,
+                                const RawAddr& addr,
+                                const RawAddr&,
+                                int interfaceIndex) {
   int proto = addr.addr.sa_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
   struct group_req mreq;
   mreq.gr_interface = interfaceIndex;