Add thunks for MojoGetRights(), etc.

mojo/public/c/system/tests/core_unittest.cc

 // Copyright 2013 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.
 
 // This file tests the C API.
 
 #include <string.h>
 
 #include "mojo/public/c/system/buffer.h"
 #include "mojo/public/c/system/data_pipe.h"
 #include "mojo/public/c/system/handle.h"
 #include "mojo/public/c/system/message_pipe.h"
 #include "mojo/public/c/system/result.h"
 #include "mojo/public/c/system/time.h"
 #include "mojo/public/c/system/wait.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 // Defined in core_unittest_pure_c.c.
 extern "C" const char* MinimalCTest(void);
 
 // Defined in core_unittest_pure_cpp.cc.
 const char* MinimalCppTest();
 
 namespace mojo {
 namespace {
 
+const MojoHandleRights kDefaultMessagePipeHandleRights =
+    MOJO_HANDLE_RIGHT_TRANSFER | MOJO_HANDLE_RIGHT_READ |
+    MOJO_HANDLE_RIGHT_WRITE | MOJO_HANDLE_RIGHT_GET_OPTIONS |
+    MOJO_HANDLE_RIGHT_SET_OPTIONS;
+const MojoHandleRights kDefaultDataPipeProducerHandleRights =
+    MOJO_HANDLE_RIGHT_TRANSFER | MOJO_HANDLE_RIGHT_WRITE |
+    MOJO_HANDLE_RIGHT_GET_OPTIONS | MOJO_HANDLE_RIGHT_SET_OPTIONS;
+const MojoHandleRights kDefaultDataPipeConsumerHandleRights =
+    MOJO_HANDLE_RIGHT_TRANSFER | MOJO_HANDLE_RIGHT_READ |
+    MOJO_HANDLE_RIGHT_GET_OPTIONS | MOJO_HANDLE_RIGHT_SET_OPTIONS;
+const MojoHandleRights kDefaultSharedBufferHandleRights =
+    MOJO_HANDLE_RIGHT_DUPLICATE | MOJO_HANDLE_RIGHT_TRANSFER |
+    MOJO_HANDLE_RIGHT_GET_OPTIONS | MOJO_HANDLE_RIGHT_SET_OPTIONS |
+    MOJO_HANDLE_RIGHT_MAP_READABLE | MOJO_HANDLE_RIGHT_MAP_WRITABLE |
+    MOJO_HANDLE_RIGHT_MAP_EXECUTABLE;
+
 TEST(CoreTest, GetTimeTicksNow) {
   const MojoTimeTicks start = MojoGetTimeTicksNow();
   EXPECT_NE(static_cast<MojoTimeTicks>(0), start)
       << "MojoGetTimeTicksNow should return nonzero value";
 }
 
 // The only handle that's guaranteed to be invalid is |MOJO_HANDLE_INVALID|.
 // Tests that everything that takes a handle properly recognizes it.
 TEST(CoreTest, InvalidHandle) {
   MojoHandleSignals sig;
   char buffer[10] = {0};
   uint32_t buffer_size;
   void* write_pointer;
   const void* read_pointer;
 
   // Close:
   EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, MojoClose(MOJO_HANDLE_INVALID));
 
+  // GetRights:
+  MojoHandleRights rights = MOJO_HANDLE_RIGHT_NONE;
+  EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
+            MojoGetRights(MOJO_HANDLE_INVALID, &rights));
+
   // Wait:
   EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT,
             MojoWait(MOJO_HANDLE_INVALID, ~MOJO_HANDLE_SIGNAL_NONE, 1000000u,
                      nullptr));
 
   const MojoHandle h = MOJO_HANDLE_INVALID;
   sig = ~MOJO_HANDLE_SIGNAL_NONE;
   EXPECT_EQ(
       MOJO_RESULT_INVALID_ARGUMENT,
       MojoWaitMany(&h, &sig, 1u, MOJO_DEADLINE_INDEFINITE, nullptr, nullptr));
@@ skipping 67 matching lines @@
   MojoHandle h0, h1;
   MojoHandleSignals sig;
   char buffer[10] = {0};
   uint32_t buffer_size;
 
   h0 = MOJO_HANDLE_INVALID;
   h1 = MOJO_HANDLE_INVALID;
   EXPECT_EQ(MOJO_RESULT_OK, MojoCreateMessagePipe(nullptr, &h0, &h1));
   EXPECT_NE(h0, MOJO_HANDLE_INVALID);
   EXPECT_NE(h1, MOJO_HANDLE_INVALID);
+  EXPECT_NE(h0, h1);
+
+  // Both handles should have the correct rights.
+  MojoHandleRights rights = MOJO_HANDLE_RIGHT_NONE;
+  EXPECT_EQ(MOJO_RESULT_OK, MojoGetRights(h0, &rights));
+  EXPECT_EQ(kDefaultMessagePipeHandleRights, rights);
+  rights = MOJO_HANDLE_RIGHT_NONE;
+  EXPECT_EQ(MOJO_RESULT_OK, MojoGetRights(h1, &rights));
+  EXPECT_EQ(kDefaultMessagePipeHandleRights, rights);
 
   // Shouldn't be readable, we haven't written anything.
   MojoHandleSignalsState state;
   EXPECT_EQ(MOJO_RESULT_DEADLINE_EXCEEDED,
             MojoWait(h0, MOJO_HANDLE_SIGNAL_READABLE, 0, &state));
   EXPECT_EQ(MOJO_HANDLE_SIGNAL_WRITABLE, state.satisfied_signals);
   EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE |
                 MOJO_HANDLE_SIGNAL_PEER_CLOSED,
             state.satisfiable_signals);
 
@@ skipping 76 matching lines @@
   char buffer[20] = {0};
   uint32_t buffer_size;
   void* write_pointer;
   const void* read_pointer;
 
   hp = MOJO_HANDLE_INVALID;
   hc = MOJO_HANDLE_INVALID;
   EXPECT_EQ(MOJO_RESULT_OK, MojoCreateDataPipe(nullptr, &hp, &hc));
   EXPECT_NE(hp, MOJO_HANDLE_INVALID);
   EXPECT_NE(hc, MOJO_HANDLE_INVALID);
+  EXPECT_NE(hp, hc);
+
+  // Both handles should have the correct rights.
+  MojoHandleRights rights = MOJO_HANDLE_RIGHT_NONE;
+  EXPECT_EQ(MOJO_RESULT_OK, MojoGetRights(hp, &rights));
+  EXPECT_EQ(kDefaultDataPipeProducerHandleRights, rights);
+  rights = MOJO_HANDLE_RIGHT_NONE;
+  EXPECT_EQ(MOJO_RESULT_OK, MojoGetRights(hc, &rights));
+  EXPECT_EQ(kDefaultDataPipeConsumerHandleRights, rights);
 
   // The consumer |hc| shouldn't be readable.
   MojoHandleSignalsState state;
   EXPECT_EQ(MOJO_RESULT_DEADLINE_EXCEEDED,
             MojoWait(hc, MOJO_HANDLE_SIGNAL_READABLE, 0, &state));
   EXPECT_EQ(MOJO_HANDLE_SIGNAL_NONE, state.satisfied_signals);
   EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_PEER_CLOSED |
                 MOJO_HANDLE_SIGNAL_READ_THRESHOLD,
             state.satisfiable_signals);
 
@@ skipping 338 matching lines @@
 #endif
 TEST(CoreTest, MAYBE_BasicSharedBuffer) {
   MojoHandle h0, h1;
   void* pointer;
 
   // Create a shared buffer (|h0|).
   h0 = MOJO_HANDLE_INVALID;
   EXPECT_EQ(MOJO_RESULT_OK, MojoCreateSharedBuffer(nullptr, 100, &h0));
   EXPECT_NE(h0, MOJO_HANDLE_INVALID);
 
+  // The handle should have the correct rights.
+  MojoHandleRights rights = MOJO_HANDLE_RIGHT_NONE;
+  EXPECT_EQ(MOJO_RESULT_OK, MojoGetRights(h0, &rights));
+  EXPECT_EQ(kDefaultSharedBufferHandleRights, rights);
+
   // Check information about the buffer from |h0|.
   MojoBufferInformation info = {};
   static const uint32_t kInfoSize = static_cast<uint32_t>(sizeof(info));
   EXPECT_EQ(MOJO_RESULT_OK, MojoGetBufferInformation(h0, &info, kInfoSize));
   EXPECT_EQ(kInfoSize, info.struct_size);
   EXPECT_EQ(MOJO_BUFFER_INFORMATION_FLAG_NONE, info.flags);
   EXPECT_EQ(100u, info.num_bytes);
 
   // Map everything.
   pointer = nullptr;
   EXPECT_EQ(MOJO_RESULT_OK,
             MojoMapBuffer(h0, 0, 100, &pointer, MOJO_MAP_BUFFER_FLAG_NONE));
   ASSERT_TRUE(pointer);
   static_cast<char*>(pointer)[50] = 'x';
 
   // Duplicate |h0| to |h1|.
   h1 = MOJO_HANDLE_INVALID;
   EXPECT_EQ(MOJO_RESULT_OK, MojoDuplicateBufferHandle(h0, nullptr, &h1));
   EXPECT_NE(h1, MOJO_HANDLE_INVALID);
 
+  // The new handle should have the correct rights.
+  rights = MOJO_HANDLE_RIGHT_NONE;
+  EXPECT_EQ(MOJO_RESULT_OK, MojoGetRights(h1, &rights));
+  EXPECT_EQ(kDefaultSharedBufferHandleRights, rights);
+
   // Check information about the buffer from |h1|.
   info = MojoBufferInformation();
   EXPECT_EQ(MOJO_RESULT_OK, MojoGetBufferInformation(h1, &info, kInfoSize));
   EXPECT_EQ(kInfoSize, info.struct_size);
   EXPECT_EQ(MOJO_BUFFER_INFORMATION_FLAG_NONE, info.flags);
   EXPECT_EQ(100u, info.num_bytes);
 
   // Close |h0|.
   EXPECT_EQ(MOJO_RESULT_OK, MojoClose(h0));
 
@@ skipping 27 matching lines @@
 
 TEST(CoreTest, MinimalCppTest) {
   const char* failure = MinimalCppTest();
   EXPECT_FALSE(failure) << failure;
 }
 
 // TODO(vtl): Add multi-threaded tests.
 
 }  // namespace
 }  // namespace mojo