lldb/source/Host/posix/HostThreadPosix.cpp

   1 //===-- HostThreadPosix.cpp -----------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "lldb/Host/posix/HostThreadPosix.h"
  10 #include "lldb/Utility/Status.h"
  11
  12 #include <cerrno>
  13 #include <pthread.h>
  14
  15 using namespace lldb;
  16 using namespace lldb_private;
  17
  18 HostThreadPosix::HostThreadPosix() = default;
  19
  20 HostThreadPosix::HostThreadPosix(lldb::thread_t thread)
  21     : HostNativeThreadBase(thread) {}
  22
  23 HostThreadPosix::~HostThreadPosix() = default;
  24
  25 Status HostThreadPosix::Join(lldb::thread_result_t *result) {
  26   Status error;
  27   if (IsJoinable()) {
  28     int err = ::pthread_join(m_thread, result);
  29     error.SetError(err, lldb::eErrorTypePOSIX);
  30   } else {
  31     if (result)
  32       *result = nullptr;
  33     error.SetError(EINVAL, eErrorTypePOSIX);
  34   }
  35
  36   Reset();
  37   return error;
  38 }
  39
  40 Status HostThreadPosix::Cancel() {
  41   Status error;
  42   if (IsJoinable()) {
  43 #ifndef __FreeBSD__
  44     llvm_unreachable("someone is calling HostThread::Cancel()");
  45 #else
  46     int err = ::pthread_cancel(m_thread);
  47     error.SetError(err, eErrorTypePOSIX);
  48 #endif
  49   }
  50   return error;
  51 }
  52
  53 Status HostThreadPosix::Detach() {
  54   Status error;
  55   if (IsJoinable()) {
  56     int err = ::pthread_detach(m_thread);
  57     error.SetError(err, eErrorTypePOSIX);
  58   }
  59   Reset();
  60   return error;
  61 }