Reland of NaCl cleanup: Split out irt_interfaces.cc from irt_ppapi.cc

ppapi/nacl_irt/irt_interfaces.cc

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ppapi/nacl_irt/irt_interfaces.h"
+
+#include <unistd.h>
+
+#include "build/build_config.h"
+#include "native_client/src/public/irt_core.h"
+#include "native_client/src/trusted/service_runtime/include/sys/unistd.h"
+#include "native_client/src/untrusted/irt/irt.h"
+#include "ppapi/nacl_irt/irt_manifest.h"
+#include "ppapi/nacl_irt/public/irt_ppapi.h"
+#include "ppapi/native_client/src/untrusted/pnacl_irt_shim/irt_shim_ppapi.h"
+
+#if defined(OS_NACL_SFI)
+static int ppapihook_pnacl_private_filter(void) {
+  int pnacl_mode = sysconf(NACL_ABI__SC_NACL_PNACL_MODE);
+  if (pnacl_mode == -1)
+    return 0;
+  return pnacl_mode;
+}
+#endif
+
+static const nacl_irt_resource_open kIrtResourceOpen = {
+  ppapi::IrtOpenResource,
+};
+
+#if defined(OS_NACL_SFI)
+static int not_pnacl_filter(void) {
+  int pnacl_mode = sysconf(NACL_ABI__SC_NACL_PNACL_MODE);
+  if (pnacl_mode == -1)
+    return 0;
+  return !pnacl_mode;
+}
+#endif
+
+static const struct nacl_irt_interface irt_interfaces[] = {
+  { NACL_IRT_PPAPIHOOK_v0_1, &nacl_irt_ppapihook, sizeof(nacl_irt_ppapihook),
+    NULL },
+#if defined(OS_NACL_SFI)
+  { NACL_IRT_PPAPIHOOK_PNACL_PRIVATE_v0_1,
+    &nacl_irt_ppapihook_pnacl_private, sizeof(nacl_irt_ppapihook_pnacl_private),
+    ppapihook_pnacl_private_filter },
+#endif
+  { NACL_IRT_RESOURCE_OPEN_v0_1, &kIrtResourceOpen,
+    sizeof(kIrtResourceOpen),
+#if defined(OS_NACL_SFI)
+    not_pnacl_filter,
+#else
+    // If we change PNaCl to use Non-SFI Mode on the open web,
+    // we should add a filter here.
+    NULL,
+#endif
+  },
+};
+
+size_t chrome_irt_query(const char* interface_ident,
+                        void* table, size_t tablesize) {
+  size_t result = nacl_irt_query_list(interface_ident,
+                                      table,
+                                      tablesize,
+                                      irt_interfaces,
+                                      sizeof(irt_interfaces));
+  if (result != 0)
+    return result;
+
+  return nacl_irt_query_core(interface_ident, table, tablesize);
+}