ceph/src/jaegertracing/thrift/lib/cpp/src/thrift/server/TServer.cpp

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements. See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership. The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License. You may obtain a copy of the License at
   9  *
  10  *   http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing,
  13  * software distributed under the License is distributed on an
  14  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  15  * KIND, either express or implied. See the License for the
  16  * specific language governing permissions and limitations
  17  * under the License.
  18  */
  19
  20 #include <thrift/thrift-config.h>
  21
  22 #ifdef HAVE_SYS_TIME_H
  23 #include <sys/time.h>
  24 #endif
  25 #ifdef HAVE_SYS_RESOURCE_H
  26 #include <sys/resource.h>
  27 #endif
  28
  29 #ifdef HAVE_UNISTD_H
  30 #include <unistd.h>
  31 #endif
  32
  33 namespace apache {
  34 namespace thrift {
  35 namespace server {
  36
  37 #ifdef HAVE_SYS_RESOURCE_H
  38 int increase_max_fds(int max_fds = (1 << 24)) {
  39   struct rlimit fdmaxrl;
  40
  41   for (fdmaxrl.rlim_cur = max_fds, fdmaxrl.rlim_max = max_fds;
  42        max_fds && (setrlimit(RLIMIT_NOFILE, &fdmaxrl) < 0);
  43        fdmaxrl.rlim_cur = max_fds, fdmaxrl.rlim_max = max_fds) {
  44     max_fds /= 2;
  45   }
  46
  47   return static_cast<int>(fdmaxrl.rlim_cur);
  48 }
  49 #endif
  50 }
  51 }
  52 } // apache::thrift::server