fixes the exit-code error on osx builds.

Closes #200.

include/boost/process/v1/detail/windows/handles.hpp

@@ -140,10 +140,7 @@ struct limit_handles_ : handler_base_ext
                     auto itr = std::find(all_handles.begin(), all_handles .end(), handle);
                     ::boost::winapi::DWORD_ flags = 0u;
                     if (itr != all_handles.end())
-                        *itr = ::boost::winapi::INVALID_HANDLE_VALUE_;
-                    else if ((::boost::winapi::GetHandleInformation(*itr, &flags) != 0)
-                            &&((flags & ::boost::winapi::HANDLE_FLAG_INHERIT_) == 0)) //it is NOT inherited anyhow, so ignore too
-                        *itr = ::boost::winapi::INVALID_HANDLE_VALUE_;
+                        *itr = ::boost::winapi::INVALID_HANDLE_VALUE_; // the handle is used mark it as invalid, so it doesn't get reset
                 });
 
         auto part_itr = std::partition(all_handles.begin(), all_handles.end(),

include/boost/process/v2/detail/process_handle_windows.hpp

@@ -308,7 +308,7 @@ struct basic_process_handle_win
  public:
     template<BOOST_PROCESS_V2_COMPLETION_TOKEN_FOR(void(error_code, native_exit_code_type))
              WaitHandler = net::default_completion_token_t<executor_type>>
-    auto async_wait(WaitHandler &&handler = default_completion_token_t<executor_type>())
+    auto async_wait(WaitHandler &&handler = net::default_completion_token_t<executor_type>())
         -> decltype(net::async_compose<WaitHandler, void(error_code, native_exit_code_type)>(
                     async_wait_op_{handle_}, handler, handle_))
     {

include/boost/process/v2/posix/default_launcher.hpp

@@ -29,7 +29,7 @@
 #include <unistd.h>
 
 
-#if defined(__APPLE__) || defined(__MACH__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+#if defined(__APPLE__) || defined(__MACH__) || defined(__FreeBSD__) || defined(__DragonFly__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__sun)
 extern "C" { extern char **environ; }
 #endif
 

src/ext/cmd.cpp

@@ -389,7 +389,7 @@ shell cmd(boost::process::v2::pid_type pid, boost::system::error_code & ec)
                     argc++;
                 return make_cmd_shell_::make(
                         {}, argc, cmd,
-                        +[](int, char ** argv) {::free(argv);})
+                        +[](int, char ** argv) {::free(argv);});
             }
             else
                 BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);

src/pid.cpp

@@ -52,6 +52,7 @@
 #endif
 
 #if defined(__sun)
+#include <fcntl.h>
 #include <sys/types.h>
 #include <kvm.h>
 #include <sys/param.h>
@@ -710,9 +711,9 @@ std::vector<pid_type> all_pids(boost::system::error_code & ec)
         BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
         return vec;
     } 
-    while ((proc_info = kvm_nextproc(kd)))
+    while ((proc_info = kvm_nextproc(kd.get())))
     {
-        if (kvm_kread(kd, (std::uintptr_t)proc_info->p_pidp, &cur_pid, sizeof(cur_pid)) != -1)
+        if (kvm_kread(kd.get(), (std::uintptr_t)proc_info->p_pidp, &cur_pid, sizeof(cur_pid)) != -1)
         {
             vec.insert(vec.begin(), cur_pid.pid_id);
         }
@@ -744,7 +745,7 @@ pid_type parent_pid(pid_type pid, boost::system::error_code & ec)
         BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
         return ppid;
     }
-    if ((proc_info = kvm_getproc(kd, pid)))
+    if ((proc_info = kvm_getproc(kd.get(), pid)))
     {
         ppid = proc_info->p_ppid;
     }
@@ -767,17 +768,17 @@ std::vector<pid_type> child_pids(pid_type pid, boost::system::error_code & ec)
         }
     };
 
-    std::unique_ptr<kvm_t, closer> kd{kvm_open(nullptr, nullptr, nullptr, O_RDONLY, nullptr);
+    std::unique_ptr<kvm_t, closer> kd{kvm_open(nullptr, nullptr, nullptr, O_RDONLY, nullptr)};
     if (!kd)
     {
         BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
         return vec;
     }
-    while ((proc_info = kvm_nextproc(kd)))
+    while ((proc_info = kvm_nextproc(kd.get())))
     {
         if (proc_info->p_ppid == pid)
         {
-            if (kvm_kread(kd, (std::uintptr_t)proc_info->p_pidp, &cur_pid, sizeof(cur_pid)) != -1)
+            if (kvm_kread(kd.get(), (std::uintptr_t)proc_info->p_pidp, &cur_pid, sizeof(cur_pid)) != -1)
             {
                 vec.insert(vec.begin(), cur_pid.pid_id);
             }

test/v1/exit_code.cpp

@@ -148,12 +148,17 @@ BOOST_AUTO_TEST_CASE(async_nowait, *boost::unit_test::timeout(10))
     boost::asio::io_context io_context;
     bp::child c(
             master_test_suite().argv[1],
-            "test", "--exit-code", "221",
+            "test", "--exit-code", "121",
             ec,
             bp::on_exit=[](int exit_code, std::error_code) mutable {},
             io_context
     );
     BOOST_REQUIRE(!ec);
-    io_context.run_for(std::chrono::milliseconds(100));
-    BOOST_CHECK_EQUAL(221, c.exit_code());
+    while (c.running())
+    {
+      io_context.run_for(std::chrono::milliseconds(10));
+      io_context.restart();
+    }
+
+    BOOST_CHECK_EQUAL(121, c.exit_code());
 }