C++ (Cpp) set_file_block_mode Beispiele

Beispiel #1

Datei: adb_utils_test.cpp Projekt: ArtBears/platform_system_core

TEST(adb_utils, set_file_block_mode) {
  int fd = adb_open("/dev/null", O_RDWR | O_APPEND);
  ASSERT_GE(fd, 0);
  int flags = fcntl(fd, F_GETFL, 0);
  ASSERT_EQ(O_RDWR | O_APPEND, (flags & (O_RDWR | O_APPEND)));
  ASSERT_TRUE(set_file_block_mode(fd, false));
  int new_flags = fcntl(fd, F_GETFL, 0);
  ASSERT_EQ(flags | O_NONBLOCK, new_flags);
  ASSERT_TRUE(set_file_block_mode(fd, true));
  new_flags = fcntl(fd, F_GETFL, 0);
  ASSERT_EQ(flags, new_flags);
  ASSERT_EQ(0, adb_close(fd));
}

Beispiel #2

Datei: fdevent.cpp Projekt: RajaMu/system_core

void fdevent_install(fdevent* fde, int fd, fd_func func, void* arg) {
    CHECK_GE(fd, 0);
    memset(fde, 0, sizeof(fdevent));
    fde->state = FDE_ACTIVE;
    fde->fd = fd;
    fde->func = func;
    fde->arg = arg;
    if (!set_file_block_mode(fd, false)) {
        // Here is not proper to handle the error. If it fails here, some error is
        // likely to be detected by poll(), then we can let the callback function
        // to handle it.
        LOG(ERROR) << "failed to set non-blocking mode for fd " << fd;
    }
    auto pair = g_poll_node_map.emplace(fde->fd, PollNode(fde));
    CHECK(pair.second) << "install existing fd " << fd;
    D("fdevent_install %s", dump_fde(fde).c_str());
}