Fixed __FreeBSD__ code.

Credit to Samuel Venable, @time-killer-games.

.drone.star

@@ -14,8 +14,7 @@ windowsglobalimage="cppalliance/dronevs2019"
 
 def main(ctx):
   return [
-  freebsd_cxx("gcc 11 freebsd", "g++-11", buildtype="boost", buildscript="drone", freebsd_version="13.1", environment={'B2_TOOLSET': 'gcc-11', 'B2_CXXSTD': '17,20', 'B2_LINKFLAGS': '-Wl,-rpath=/usr/local/lib/gcc11'}, globalenv=globalenv),
-  freebsd_cxx("clang 14 freebsd", "clang++-14", buildtype="boost", buildscript="drone", freebsd_version="13.1", environment={'B2_TOOLSET': 'clang-14', 'B2_CXXSTD': '17,20'}, globalenv=globalenv),
+    #freebsd_cxx("FreeBSD", "g++10",  packages="g++10",  buildtype="boost", buildscript="drone",                                                environment={ "VARIANT": "release", "TOOLSET": "gcc", "COMPILER": "g++", "CXXSTD": "11" }, globalenv=globalenv),
   linux_cxx("docs", "", packages="docbook docbook-xml docbook-xsl xsltproc libsaxonhe-java default-jre-headless flex libfl-dev bison unzip rsync mlocate", image="cppalliance/droneubuntu1804:1", buildtype="docs", buildscript="drone", environment={"COMMENT": "docs"}, globalenv=globalenv),
   linux_cxx("asan",         "g++-8",  packages="g++-8",  buildtype="boost", buildscript="drone", image=linuxglobalimage,                        environment={'COMMENT': 'asan',  'B2_VARIANT': 'debug', 'B2_TOOLSET': 'gcc-8',  'B2_CXXSTD': '11', 'B2_ASAN':  '1', 'B2_DEFINES': 'BOOST_NO_STRESS_TEST=1', 'DRONE_EXTRA_PRIVILEGED': 'True', 'DRONE_JOB_UUID': '356a192b79'}, globalenv=globalenv, privileged=True),
   linux_cxx("ubsan",        "g++-8",  packages="g++-8",  buildtype="boost", buildscript="drone", image=linuxglobalimage,                        environment={'COMMENT': 'ubsan', 'B2_VARIANT': 'debug', 'B2_TOOLSET': 'gcc-8',  'B2_CXXSTD': '11', 'B2_UBSAN': '1', 'B2_DEFINES': 'BOOST_NO_STRESS_TEST=1', 'B2_LINKFLAGS': '-fuse-ld=gold',  'DRONE_JOB_UUID': '77de68daec'}, globalenv=globalenv),

doc/v2/quickstart.qbk

@@ -1,4 +1,4 @@
-[section:quickstart Quickstart]
+[section:quickstart Quickstrat]
 
 A process needs four things to be launched:
 

include/boost/process/async_system.hpp

@@ -38,11 +38,12 @@ namespace process {
 namespace detail
 {
 
-template<typename Handler>
+template<typename ExitHandler>
 struct async_system_handler : ::boost::process::detail::api::async_handler
 {
     boost::asio::io_context & ios;
-    Handler handler;
+    boost::asio::async_completion<
+            ExitHandler, void(boost::system::error_code, int)> init;
 
 #if defined(BOOST_POSIX_API)
     bool errored = false;
@@ -51,8 +52,9 @@ struct async_system_handler : ::boost::process::detail::api::async_handler
     template<typename ExitHandler_>
     async_system_handler(
             boost::asio::io_context & ios,
-            ExitHandler_ && exit_handler) : ios(ios), handler(std::forward<ExitHandler_>(exit_handler))
+            ExitHandler_ && exit_handler) : ios(ios), init(exit_handler)
     {
+
     }
 
 
@@ -62,15 +64,21 @@ struct async_system_handler : ::boost::process::detail::api::async_handler
 #if defined(BOOST_POSIX_API)
         errored = true;
 #endif
-        auto h = std::make_shared<Handler>(std::move(handler));
+        auto & h = init.completion_handler;
         boost::asio::post(
             ios.get_executor(),
             [h, ec]() mutable
             {
-                (*h)(boost::system::error_code(ec.value(), boost::system::system_category()), -1);
+                h(boost::system::error_code(ec.value(), boost::system::system_category()), -1);
             });
     }
 
+    BOOST_ASIO_INITFN_RESULT_TYPE(ExitHandler, void (boost::system::error_code, int))
+        get_result()
+    {
+        return init.result.get();
+    }
+
     template<typename Executor>
     std::function<void(int, const std::error_code&)> on_exit_handler(Executor&)
     {
@@ -78,10 +86,10 @@ struct async_system_handler : ::boost::process::detail::api::async_handler
         if (errored)
             return [](int , const std::error_code &){};
 #endif
-        auto h = std::make_shared<Handler>(std::move(handler));
+        auto & h = init.completion_handler;
         return [h](int exit_code, const std::error_code & ec) mutable
                {
-                    (*h)(boost::system::error_code(ec.value(), boost::system::system_category()), exit_code);
+                    h(boost::system::error_code(ec.value(), boost::system::system_category()), exit_code);
                };
     }
 };
@@ -112,36 +120,21 @@ inline boost::process::detail::dummy
     async_system(boost::asio::io_context & ios, ExitHandler && exit_handler, Args && ...args);
 #endif
 
-namespace detail
-{
-struct async_system_init_op
-{
-
-    template<typename Handler, typename ... Args>
-    void operator()(Handler && handler, asio::io_context & ios, Args && ... args)
-    {
-        detail::async_system_handler<typename std::decay<Handler>::type> async_h{ios, std::forward<Handler>(handler)};
-        child(ios, std::forward<Args>(args)..., async_h ).detach();
-    }
-};
-
-
-}
-
-
 template<typename ExitHandler, typename ...Args>
 inline BOOST_ASIO_INITFN_RESULT_TYPE(ExitHandler, void (boost::system::error_code, int))
     async_system(boost::asio::io_context & ios, ExitHandler && exit_handler, Args && ...args)
 {
-    
+    detail::async_system_handler<ExitHandler> async_h{ios, std::forward<ExitHandler>(exit_handler)};
+
     typedef typename ::boost::process::detail::has_error_handler<boost::fusion::tuple<Args...>>::type
             has_err_handling;
 
     static_assert(!has_err_handling::value, "async_system cannot have custom error handling");
 
-    return boost::asio::async_initiate<ExitHandler, void (boost::system::error_code, int)>(
-        detail::async_system_init_op{}, exit_handler, ios, std::forward<Args>(args)...
-    );
+
+    child(ios, std::forward<Args>(args)..., async_h ).detach();
+
+    return async_h.get_result();
 }
 
 

include/boost/process/detail/posix/search_path.hpp

@@ -27,11 +27,7 @@ inline boost::process::filesystem::path search_path(
     for (const boost::process::filesystem::path & pp : path)
     {
         auto p = pp / filename;
-#if defined(BOOST_PROCESS_USE_STD_FS)
-        std::error_code ec;
-#else
         boost::system::error_code ec;
-#endif
         bool file = boost::process::filesystem::is_regular_file(p, ec);
         if (!ec && file && ::access(p.c_str(), X_OK) == 0)
             return p;

include/boost/process/detail/windows/search_path.hpp

@@ -61,11 +61,7 @@ inline boost::process::filesystem::path search_path(
         {
             boost::process::filesystem::path pp_ext = p;
             pp_ext += ext;
-#if defined(BOOST_PROCESS_USE_STD_FS)
-            std::error_code ec;
-#else
             boost::system::error_code ec;
-#endif
             bool file = boost::process::filesystem::is_regular_file(pp_ext, ec);
             if (!ec && file &&
                 ::boost::winapi::sh_get_file_info(pp_ext.native().c_str(), 0, 0, 0, ::boost::winapi::SHGFI_EXETYPE_))

include/boost/process/v2/bind_launcher.hpp

@@ -1,240 +0,0 @@
-//
-// boost/process/v2/bind_launcher.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2022 Klemens D. Morgenstern (klemens dot morgenstern at gmx dot net)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef BOOST_PROCESS_V2_BIND_LAUNCHER_HPP
-#define BOOST_PROCESS_V2_BIND_LAUNCHER_HPP
-
-#include <boost/process/v2/detail/config.hpp>
-#include <boost/process/v2/default_launcher.hpp>
-
-BOOST_PROCESS_V2_BEGIN_NAMESPACE
-
-namespace detail
-{
-
-template<std::size_t ... Idx>
-struct index_sequence { };
-
-template<std::size_t Size, typename T> 
-struct make_index_sequence_impl;
-
-template<std::size_t Size, std::size_t ... Idx> 
-struct make_index_sequence_impl<Size, index_sequence<Idx...>>
-{
-    constexpr make_index_sequence_impl() {}
-    using type = typename make_index_sequence_impl<Size - 1u, index_sequence<Size - 1u, Idx...>>::type;
-};
-
-template<std::size_t ... Idx> 
-struct make_index_sequence_impl<0u, index_sequence<Idx...>>
-{
-    constexpr make_index_sequence_impl() {}
-    using type = index_sequence<Idx...>;
-};
-
-
-template<std::size_t Cnt>
-struct make_index_sequence
-{
-    using type = typename make_index_sequence_impl<Cnt, index_sequence<>>::type;
-};
-
-template<std::size_t Cnt>
-using make_index_sequence_t = typename make_index_sequence<Cnt>::type;
-
-}
-
-/** @brief  Utility class to bind initializers to a launcher
- * @tparam Launcher The inner launcher to be used
- * @tparam ...Init The initializers to be prepended.
- * 
- * This can be used when multiple processes shared some settings, 
- * e.g. 
- * 
- */
-template<typename Launcher, typename ... Init>
-struct bound_launcher
-{
-    template<typename Launcher_, typename ... Init_>
-    bound_launcher(Launcher_ && l, Init_ && ... init) : 
-        launcher_(std::forward<Launcher_>(l)), init_(std::forward<Init_>(init)...) 
-    {
-    }
-
-    template<typename ExecutionContext, typename Args, typename ... Inits>
-    auto operator()(ExecutionContext & context,
-                    const typename std::enable_if<std::is_convertible<
-                            ExecutionContext&, BOOST_PROCESS_V2_ASIO_NAMESPACE::execution_context&>::value,
-                            filesystem::path >::type & executable,
-                    Args && args,
-                    Inits && ... inits) -> basic_process<typename ExecutionContext::executor_type>
-    {
-        return invoke(detail::make_index_sequence_t<sizeof...(Init)>{},
-                      context, 
-                      executable,  
-                      std::forward<Args>(args), 
-                      std::forward<Inits>(inits)...);
-    }
-
-
-    template<typename ExecutionContext, typename Args, typename ... Inits>
-    auto operator()(ExecutionContext & context,
-                    error_code & ec,
-                    const typename std::enable_if<std::is_convertible<
-                            ExecutionContext&, BOOST_PROCESS_V2_ASIO_NAMESPACE::execution_context&>::value,
-                            filesystem::path >::type & executable,
-                    Args && args,
-                    Inits && ... inits ) -> basic_process<typename ExecutionContext::executor_type>
-    {
-        return invoke(detail::make_index_sequence_t<sizeof...(Init)>{},
-                      context, ec,
-                      executable,  
-                      std::forward<Args>(args), 
-                      std::forward<Inits>(inits)...);
-    }
-
-    template<typename Executor, typename Args, typename ... Inits>
-    auto operator()(Executor exec,
-                    const typename std::enable_if<
-                            BOOST_PROCESS_V2_ASIO_NAMESPACE::execution::is_executor<Executor>::value ||
-                            BOOST_PROCESS_V2_ASIO_NAMESPACE::is_executor<Executor>::value,
-                            filesystem::path >::type & executable,
-                    Args && args,
-                    Inits && ... inits ) -> basic_process<Executor>
-    {
-        return invoke(detail::make_index_sequence_t<sizeof...(Init)>{},
-                      std::move(exec), 
-                      executable,  
-                      std::forward<Args>(args), 
-                      std::forward<Inits>(inits)...);
-    }
-
-    template<typename Executor, typename Args, typename ... Inits>
-    auto operator()(Executor exec,
-                    error_code & ec,
-                    const typename std::enable_if<
-                            BOOST_PROCESS_V2_ASIO_NAMESPACE::execution::is_executor<Executor>::value ||
-                            BOOST_PROCESS_V2_ASIO_NAMESPACE::is_executor<Executor>::value,
-                            filesystem::path >::type & executable,
-                    Args && args,
-                    Inits && ... inits ) -> basic_process<Executor>
-    {
-        return invoke(detail::make_index_sequence_t<sizeof...(Init)>{},
-                      std::move(exec), ec,
-                      executable,  
-                      std::forward<Args>(args), 
-                      std::forward<Inits>(inits)...);
-    }
-
-  private:
-    template<std::size_t ... Idx, typename ExecutionContext, typename Args, typename ... Inits>
-    auto invoke(detail::index_sequence<Idx...>, 
-                ExecutionContext & context,
-                const typename std::enable_if<std::is_convertible<
-                        ExecutionContext&, BOOST_PROCESS_V2_ASIO_NAMESPACE::execution_context&>::value,
-                        filesystem::path >::type & executable,
-                Args && args,
-                Inits && ... inits) -> basic_process<typename ExecutionContext::executor_type>
-    {
-        return launcher_(context, 
-                         executable,  
-                         std::forward<Args>(args), 
-                         std::get<Idx>(init_)...,
-                         std::forward<Inits>(inits)...);
-    }
-
-
-    template<std::size_t ... Idx, typename ExecutionContext, typename Args, typename ... Inits>
-    auto invoke(detail::index_sequence<Idx...>,
-                ExecutionContext & context,
-                error_code & ec,
-                const typename std::enable_if<std::is_convertible<
-                        ExecutionContext&, BOOST_PROCESS_V2_ASIO_NAMESPACE::execution_context&>::value,
-                        filesystem::path >::type & executable,
-                Args && args,
-                Inits && ... inits ) -> basic_process<typename ExecutionContext::executor_type>
-    {
-        return launcher_(context, ec,
-                         executable,  
-                         std::forward<Args>(args), 
-                         std::get<Idx>(init_)...,
-                         std::forward<Inits>(inits)...);
-    }
-
-    template<std::size_t ... Idx, typename Executor, typename Args, typename ... Inits>
-    auto invoke(detail::index_sequence<Idx...>,
-                Executor exec,
-                const typename std::enable_if<
-                        BOOST_PROCESS_V2_ASIO_NAMESPACE::execution::is_executor<Executor>::value ||
-                        BOOST_PROCESS_V2_ASIO_NAMESPACE::is_executor<Executor>::value,
-                        filesystem::path >::type & executable,
-                Args && args,
-                Inits && ... inits ) -> basic_process<Executor>
-    {
-        return launcher_(std::move(exec), 
-                         executable,  
-                         std::forward<Args>(args), 
-                         std::get<Idx>(init_)...,
-                         std::forward<Inits>(inits)...);
-    }
-
-    template<std::size_t ... Idx, typename Executor, typename Args, typename ... Inits>
-    auto invoke(detail::index_sequence<Idx...>,
-                Executor exec,
-                error_code & ec,
-                const typename std::enable_if<
-                        BOOST_PROCESS_V2_ASIO_NAMESPACE::execution::is_executor<Executor>::value ||
-                        BOOST_PROCESS_V2_ASIO_NAMESPACE::is_executor<Executor>::value,
-                        filesystem::path >::type & executable,
-                Args && args,
-                Inits && ... inits ) -> basic_process<Executor>
-    {
-        return launcher_(std::move(exec), ec,
-                         executable,  
-                         std::forward<Args>(args), 
-                         std::get<Idx>(init_)...,
-                         std::forward<Inits>(inits)...);
-    }
-
-    Launcher launcher_;
-    std::tuple<Init...> init_;
-};
-
-
-template<typename Launcher, typename ... Init>
-auto bind_launcher(Launcher && launcher, Init && ... init)
-    -> bound_launcher<typename std::decay<Launcher>::type,
-                      typename std::decay<Init>::type...>
-{
-    return bound_launcher<typename std::decay<Launcher>::type,
-                          typename std::decay<Init>::type...>(
-                            std::forward<Launcher>(launcher), 
-                            std::forward<Init>(init)...);
-}
-
-/// @brief  @overload bind_launcher(Launcher && launcher, Init && init)
-/// @tparam ...Init The initializer types to bind to the default_launcher.
-/// @param ...init The initializers types to bind to the default_launcher.
-/// @return The new default_launcher.
-template<typename ... Init>
-auto bind_default_launcher(Init && ... init)
-    -> bound_launcher<default_process_launcher,
-                      typename std::decay<Init>::type...>
-{
-    return bound_launcher<default_process_launcher,
-                          typename std::decay<Init>::type...>(
-                            default_process_launcher(), 
-                            std::forward<Init>(init)...);
-}
-
-
-BOOST_PROCESS_V2_END_NAMESPACE
-
-#endif // BOOST_PROCESS_V2_BIND_LAUNCHER_HPP

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

@@ -7,19 +7,18 @@
 
 #if defined(BOOST_PROCESS_V2_STANDALONE)
 
-#define BOOST_PROCESS_V2_ASIO_NAMESPACE asio
+#define BOOST_PROCESS_V2_ASIO_NAMESPACE ::asio
 #define BOOST_PROCESS_V2_COMPLETION_TOKEN_FOR(Sig) ASIO_COMPLETION_TOKEN_FOR(Sig)
 #define BOOST_PROCESS_V2_DEFAULT_COMPLETION_TOKEN_TYPE(Executor) ASIO_DEFAULT_COMPLETION_TOKEN_TYPE(Executor)
 #define BOOST_PROCESS_V2_INITFN_AUTO_RESULT_TYPE(Token, Signature) ASIO_INITFN_AUTO_RESULT_TYPE(Token, Signature)
 #define BOOST_PROCESS_V2_DEFAULT_COMPLETION_TOKEN(Executor) ASIO_DEFAULT_COMPLETION_TOKEN(Executor)
-#define BOOST_PROCESS_V2_INITFN_DEDUCED_RESULT_TYPE(x,y,z) ASIO_INITFN_DEDUCED_RESULT_TYPE(x,y,z)
+
 
 #include <asio/detail/config.hpp>
 #include <system_error>
 #include <filesystem>
 #include <string_view>
 #include <iomanip>
-#include <optional>
 
 #if defined(ASIO_WINDOWS)
 #define BOOST_PROCESS_V2_WINDOWS 1
@@ -40,19 +39,18 @@
 
 #else
 
-#define BOOST_PROCESS_V2_ASIO_NAMESPACE boost::asio
+#define BOOST_PROCESS_V2_ASIO_NAMESPACE ::boost::asio
 #define BOOST_PROCESS_V2_COMPLETION_TOKEN_FOR(Sig) BOOST_ASIO_COMPLETION_TOKEN_FOR(Sig)
 #define BOOST_PROCESS_V2_DEFAULT_COMPLETION_TOKEN_TYPE(Executor) BOOST_ASIO_DEFAULT_COMPLETION_TOKEN_TYPE(Executor)
 #define BOOST_PROCESS_V2_INITFN_AUTO_RESULT_TYPE(Token, Signature) BOOST_ASIO_INITFN_AUTO_RESULT_TYPE(Token, Signature)
 #define BOOST_PROCESS_V2_DEFAULT_COMPLETION_TOKEN(Executor) BOOST_ASIO_DEFAULT_COMPLETION_TOKEN(Executor)
-#define BOOST_PROCESS_V2_INITFN_DEDUCED_RESULT_TYPE(x,y,z) BOOST_ASIO_INITFN_DEDUCED_RESULT_TYPE(x,y,z)
+
 
 #include <boost/config.hpp>
 #include <boost/io/quoted.hpp>
 #include <boost/system/error_code.hpp>
 #include <boost/system/system_category.hpp>
 #include <boost/system/system_error.hpp>
-#include <boost/optional.hpp>
 
 #if defined(BOOST_WINDOWS_API)
 #define BOOST_PROCESS_V2_WINDOWS 1
@@ -74,9 +72,11 @@
 
 #if defined(BOOST_PROCESS_USE_STD_FS)
 #include <filesystem>
+#include <optional>
 #else
 #include <boost/filesystem/path.hpp>
 #include <boost/filesystem/operations.hpp>
+#include <boost/optional.hpp>
 #endif
 
 #define BOOST_PROCESS_V2_BEGIN_NAMESPACE namespace boost { namespace process { namespace v2 {
@@ -142,7 +142,7 @@ BOOST_PROCESS_V2_END_NAMESPACE
 #endif
 #endif
 
-#if defined(__FreeBSD__) && defined(BOOST_PROCESS_V2_ENABLE_PDFORK)
+#if defined(__FreeBSD__) && !defined(BOOST_PROCESS_V2_DISABLE_PDFORK)
 #define BOOST_PROCESS_V2_PDFORK 1
 #define BOOST_PROCESS_V2_HAS_PROCESS_HANDLE 1
 #endif

include/boost/process/v2/detail/impl/process_handle_windows.ipp

@@ -12,6 +12,16 @@
 
 #include <windows.h>
 
+#if !defined(BOOST_PROCESS_V2_DISABLE_UNDOCUMENTED_API)
+extern "C" 
+{
+  
+LONG WINAPI NtResumeProcess(HANDLE ProcessHandle);
+LONG WINAPI NtSuspendProcess(HANDLE ProcessHandle);
+  
+}
+#endif
+
 BOOST_PROCESS_V2_BEGIN_NAMESPACE
 
 namespace detail
@@ -113,6 +123,33 @@ void check_running_(HANDLE handle, error_code & ec, DWORD & exit_status)
         ec = detail::get_last_error();
 }
 
+#if !defined(BOOST_PROCESS_V2_DISABLE_UNDOCUMENTED_API)
+void suspend_(HANDLE handle, error_code & ec)
+{
+  auto nt_err = NtSuspendProcess(handle);
+  if (nt_err > 0xC0000000)
+    ec = detail::get_last_error();
+}
+
+void resume_(HANDLE handle, error_code & ec)
+{
+
+  auto nt_err = NtResumeProcess(handle);
+  if (nt_err > 0xC0000000)
+    ec = detail::get_last_error();
+}
+#else
+void suspend_(HANDLE, error_code & ec)
+{
+  ec.assign(ERROR_CALL_NOT_IMPLEMENTED, system_category());
+}
+
+void resume_(HANDLE handle, error_code & ec)
+{
+
+    ec.assign(ERROR_CALL_NOT_IMPLEMENTED, system_category());
+}
+#endif
 
 #if !defined(BOOST_PROCESS_V2_HEADER_ONLY)
 template struct basic_process_handle_win<>;

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

@@ -182,7 +182,42 @@ struct basic_process_handle_fd
         if (ec)
             detail::throw_error(ec, "request_exit");
     }
+    
+    void suspend()
+    {
+        if (pid_ <= 0)
+            return ;
+        error_code ec;
+        suspend(ec);
+        if (ec)
+            detail::throw_error(ec, "suspend");
+    }
 
+    void suspend(error_code &ec)
+    {
+        if (pid_ <= 0)
+            return ;
+        if (::kill(pid_, SIGCONT) == -1)
+            ec = get_last_error();
+    }
+
+    void resume()
+    {
+        if (pid_ <= 0)
+            return ;
+        error_code ec;
+        resume(ec);
+        if (ec)
+            detail::throw_error(ec, "resume");
+    }
+
+    void resume(error_code &ec)
+    {
+        if (pid_ <= 0)
+            return ;
+        if (::kill(pid_, SIGTERM) == -1)
+            ec = get_last_error();
+    }
     void terminate(native_exit_code_type &exit_status, error_code &ec)
     {
         if (pid_ <= 0)

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

@@ -211,6 +211,42 @@ struct basic_process_handle_fd_or_signal
         if (ec)
             detail::throw_error(ec, "request_exit");
     }
+    
+    void suspend()
+    {
+        if (pid_ <= 0)
+            return ;
+        error_code ec;
+        suspend(ec);
+        if (ec)
+            detail::throw_error(ec, "suspend");
+    }
+
+    void suspend(error_code &ec)
+    {
+        if (pid_ <= 0)
+            return ;
+        if (::kill(pid_, SIGCONT) == -1)
+            ec = get_last_error();
+    }
+
+    void resume()
+    {
+        if (pid_ <= 0)
+            return ;
+        error_code ec;
+        resume(ec);
+        if (ec)
+            detail::throw_error(ec, "resume");
+    }
+
+    void resume(error_code &ec)
+    {
+        if (pid_ <= 0)
+            return ;
+        if (::kill(pid_, SIGTERM) == -1)
+            ec = get_last_error();
+    }
 
     void terminate(native_exit_code_type &exit_status, error_code &ec)
     {

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

@@ -180,6 +180,50 @@ struct basic_process_handle_signal
             detail::throw_error(ec, "request_exit");
     }
 
+    void interrupt(error_code &ec)
+    {
+        if (pid_ <= 0)
+            return ;
+        if (::kill(pid_, SIGTERM) == -1)
+            ec = get_last_error();
+    }
+
+    void suspend()
+    {
+        if (pid_ <= 0)
+            return ;
+        error_code ec;
+        suspend(ec);
+        if (ec)
+            detail::throw_error(ec, "suspend");
+    }
+
+    void suspend(error_code &ec)
+    {
+        if (pid_ <= 0)
+            return ;
+        if (::kill(pid_, SIGCONT) == -1)
+            ec = get_last_error();
+    }
+
+    void resume()
+    {
+        if (pid_ <= 0)
+            return ;
+        error_code ec;
+        resume(ec);
+        if (ec)
+            detail::throw_error(ec, "resume");
+    }
+
+    void resume(error_code &ec)
+    {
+        if (pid_ <= 0)
+            return ;
+        if (::kill(pid_, SIGTERM) == -1)
+            ec = get_last_error();
+    }
+
     void terminate(native_exit_code_type &exit_status, error_code &ec)
     {
         if (pid_ <= 0)

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

@@ -32,6 +32,8 @@ BOOST_PROCESS_V2_DECL void terminate_if_running_(void * handle);
 BOOST_PROCESS_V2_DECL bool check_handle_(void* handle, error_code & ec);
 BOOST_PROCESS_V2_DECL bool check_pid_(pid_type pid_, error_code & ec);
 BOOST_PROCESS_V2_DECL void interrupt_(pid_type pid_, error_code & ec);
+BOOST_PROCESS_V2_DECL void suspend_(void * handle, error_code & ec);
+BOOST_PROCESS_V2_DECL void resume_(void * handle, error_code & ec);
 BOOST_PROCESS_V2_DECL void terminate_(void * handle, error_code & ec, native_exit_code_type & exit_code);
 BOOST_PROCESS_V2_DECL void request_exit_(pid_type pid_, error_code & ec);
 BOOST_PROCESS_V2_DECL void check_running_(void* handle, error_code & ec, native_exit_code_type & exit_status);
@@ -176,6 +178,32 @@ struct basic_process_handle_win
             detail::throw_error(ec, "request_exit");
     }
 
+    void suspend(error_code &ec)
+    {
+        detail::suspend_(handle_.native_handle(), ec);
+    }
+
+    void suspend()
+    {
+        error_code ec;
+        suspend(ec);
+        if (ec)
+            detail::throw_error(ec, "suspend");
+    }
+
+    void resume(error_code &ec)
+    {
+        detail::resume_(handle_.native_handle(), ec);
+    }
+
+    void resume()
+    {
+        error_code ec;
+        suspend(ec);
+        if (ec)
+            detail::throw_error(ec, "resume");
+    }
+
     void terminate(native_exit_code_type &exit_status, error_code &ec)
     {
         if (!detail::check_handle_(handle_.native_handle(), ec))

include/boost/process/v2/exit_code.hpp

@@ -12,15 +12,6 @@
 #define BOOST_PROCESS_V2_EXIT_CODE_HPP
 
 #include <boost/process/v2/detail/config.hpp>
-#include <boost/process/v2/error.hpp>
-
-#if defined(BOOST_PROCESS_V2_STANDALONE)
-#include <asio/associator.hpp>
-#include <asio/async_result.hpp>
-#else
-#include <boost/asio/associator.hpp>
-#include <boost/asio/async_result.hpp>
-#endif 
 
 #if defined(BOOST_PROCESS_V2_POSIX)
 #include <sys/wait.h>
@@ -94,157 +85,6 @@ inline int evaluate_exit_code(int code)
 
 #endif
 
-
-/** Convert the exit-code in a completion into an error if the actual error isn't set.
- * @code {.cpp}
- * process proc{ctx, "exit", {"1"}};
- * 
- * proc.async_wait(code_as_error(
- *    [](error_code ec)
- *    {
- *      assert(ec.value() == 10);
- *      assert(ec.category() == error::get_exit_code_category());
- *    }));
- * 
- * @endcode
- */ 
-template<typename CompletionToken>
-struct code_as_error_t
-{
-    CompletionToken token_;
-    const error_category & category;
-
-    template<typename Token_>
-    code_as_error_t(Token_ && token, const error_category & category)
-        : token_(std::forward<Token_>(token)), category(category)
-    {
-    }
-};
-
-/// Deduction function for code_as_error_t.
-template<typename CompletionToken>
-code_as_error_t<CompletionToken> code_as_error(
-        CompletionToken && token, 
-        const error_category & category = error::get_exit_code_category())
-{
-  return code_as_error_t<typename std::decay<CompletionToken>::type>(
-      std::forward<CompletionToken>(token), category);
-};
-
-namespace detail
-{
-
-template<typename Handler>
-struct code_as_error_handler
-{
-  typedef void result_type;
-
-  template<typename H>
-  code_as_error_handler(H && h, const error_category & category) 
-      : handler_(std::forward<H>(h)), category(category) 
-  {
-  }
-
-  void operator()(error_code ec, native_exit_code_type code)
-  {
-    if (!ec)
-      ec.assign(code, category);
-    std::move(handler_)(ec);
-  }
-
-
-  Handler handler_;
-  const error_category & category;
-};
-
-}
-
-
 BOOST_PROCESS_V2_END_NAMESPACE
 
-
-#if !defined(BOOST_PROCESS_V2_STANDALONE)
-namespace boost
-{
-#endif
-namespace asio
-{
-
-template <typename CompletionToken>
-struct async_result<
-    BOOST_PROCESS_V2_NAMESPACE::code_as_error_t<CompletionToken>,
-      void(BOOST_PROCESS_V2_NAMESPACE::error_code,
-           BOOST_PROCESS_V2_NAMESPACE::native_exit_code_type)>
-{
-  using signature = void(BOOST_PROCESS_V2_NAMESPACE::error_code);
-  using return_type = typename async_result<CompletionToken, void(BOOST_PROCESS_V2_NAMESPACE::error_code)>::return_type;
-  
-
-  template <typename Initiation>
-  struct init_wrapper
-  {
-    init_wrapper(Initiation init)
-      : initiation_(std::move(init))
-    {
-    }
-
-    template <typename Handler, typename... Args>
-    void operator()(
-        Handler && handler,
-        const BOOST_PROCESS_V2_NAMESPACE::error_category & cat,
-        Args && ... args)
-    {
-          std::move(initiation_)(
-            BOOST_PROCESS_V2_NAMESPACE::detail::code_as_error_handler<typename decay<Handler>::type>(
-              std::forward<Handler>(handler), cat),
-              std::forward<Args>(args)...);
-    }
-
-    Initiation initiation_;
-
-  };
-
-  template <typename Initiation, typename RawCompletionToken, typename... Args>
-  static BOOST_PROCESS_V2_INITFN_DEDUCED_RESULT_TYPE(CompletionToken, signature,
-      (async_initiate<CompletionToken, signature>(
-        declval<init_wrapper<typename decay<Initiation>::type> >(),
-        declval<CompletionToken&>(),
-        declval<BOOST_ASIO_MOVE_ARG(Args)>()...)))
-  initiate(
-      Initiation && initiation,
-      RawCompletionToken && token,
-      Args &&... args)
-  {
-    return async_initiate<CompletionToken, signature>(
-        init_wrapper<typename decay<Initiation>::type>(
-          std::forward<Initiation>(initiation)),
-          token.token_,
-          token.category,
-          std::forward<Args>(args)...);
-  }
-};
-
-
-
-
-template<template <typename, typename> class Associator, typename Handler, typename DefaultCandidate>
-struct associator<Associator,
-    BOOST_PROCESS_V2_NAMESPACE::detail::code_as_error_handler<Handler>, DefaultCandidate>
-  : Associator<Handler, DefaultCandidate>
-{
-  static typename Associator<Handler, DefaultCandidate>::type get(
-      const BOOST_PROCESS_V2_NAMESPACE::detail::code_as_error_handler<Handler> & h,
-      const DefaultCandidate& c = DefaultCandidate()) noexcept
-  {
-    return Associator<Handler, DefaultCandidate>::get(h.handler_, c);
-  }
-};
-
-
-}
-#if !defined(BOOST_PROCESS_V2_STANDALONE)
-} // boost
-#endif
-
-
 #endif //BOOST_PROCESS_V2_EXIT_CODE_HPP

include/boost/process/v2/impl/pid.ipp

@@ -6,12 +6,21 @@
 #define BOOST_PROCESS_V2_IMPL_PID_IPP
 
 #include <boost/process/v2/detail/config.hpp>
+#include <boost/process/v2/detail/last_error.hpp>
+#include <boost/process/v2/detail/throw_error.hpp>
 #include <boost/process/v2/pid.hpp>
 
 #if defined(BOOST_PROCESS_V2_WINDOWS)
 #include <windows.h>
+#include <tlhelp32.h>
 #else
 #include <unistd.h>
+
+#if (defined(__APPLE__) && defined(__MACH__))
+#include <sys/proc_info.h>
+#include <libproc.h>
+#endif
+
 #endif
 
 BOOST_PROCESS_V2_BEGIN_NAMESPACE
@@ -22,6 +31,220 @@ pid_type current_pid() {return ::GetCurrentProcessId();}
 pid_type current_pid() {return ::getpid();}
 #endif
 
+#if defined(BOOST_PROCESS_V2_WINDOWS)
+std::vector<pid_type> all_pids(error_code & ec)
+{
+    std::vector<pid_type> vec;
+    HANDLE hp = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
+    if (!hp)
+    {
+        ec = detail::get_last_error();
+        return vec;
+    }
+
+    PROCESSENTRY32 pe;
+    pe.dwSize = sizeof(PROCESSENTRY32);
+    if (Process32First(hp, &pe)) {
+      do {
+        vec.push_back(pe.th32ProcessID);
+      } while (Process32Next(hp, &pe));
+    }
+    CloseHandle(hp);
+    return vec;
+}
+
+#elif (defined(__APPLE__) && defined(__MACH__))
+
+std::vector<pid_type> all_pids(error_code & ec)
+{
+    std::vector<pid_type> vec;
+    vec.resize(proc_listpids(PROC_ALL_PIDS, 0, nullptr, 0));
+
+    if (proc_listpids(PROC_ALL_PIDS, 0, &vec[0], sizeof(pid_type) * vec))
+    {
+        ec = detail::get_last_error();
+        return {};
+    }
+
+    auto itr = std::partition(vec.begin(), vec.end(), [](pid_type pt) {return pt != 0;});
+    vec.erase(itr, vec.end());
+    return vec;
+}
+
+#elif defined(__linux__)
+
+std::vector<pid_type> all_pids(error_code & ec)
+{
+    std::vector<pid_type> vec;
+    DIR *proc = opendir("/proc");
+    if (proc == nullptr)
+    {
+        ec = detail::get_last_error();
+        return vec;
+    } 
+    struct dirent *ent = nullptr;
+    while ((ent = readdir(proc) != nullptr)) 
+    {
+      if (!isdigit(*ent->d_name))
+        continue;
+      vec.push_back(atoi(ent->d_name));
+    }
+    closedir(proc);
+    return vec;
+}
+
+#elif defined(__FreeBSD__)
+
+std::vector<pid_type> all_pids(error_code & ec)
+{
+    std::vector<pid_type> vec;
+    int cntp = 0;
+    kinfo_proc *proc_info = kinfo_getallproc(&cntp);
+    if (proc_info) 
+    {
+      for (int i = 0; i < cntp; i++)
+        vec.push_back(proc_info[i].ki_pid);
+      free(proc_info);
+    }
+    else
+        ec = detail::get_last_error();
+    
+    return vec;
+}
+
+#elif defined(__DragonFly__)
+
+std::vector<pid_type> all_pids(error_code & ec)
+{
+    std::vector<pid_type> vec;
+    int cntp = 0;
+    kinfo_proc *proc_info = nullptr;
+    const char *nlistf, *memf;
+    nlistf = memf = "/dev/null";
+    kd = kvm_openfiles(nlistf, memf, nullptr, O_RDONLY, nullptr); 
+    if (!kd) 
+    {
+        ec = detail::get_last_error();
+        return vec;
+    }
+        
+    if ((proc_info = kvm_getprocs(kd, KERN_PROC_ALL, 0, &cntp))) 
+    {
+        vec.reserve(cntp);
+        for (int i = 0; i < cntp; i++) 
+            if (proc_info[i].kp_pid >= 0) 
+                vec.push_back(proc_info[i].kp_pid);
+    }
+    else
+        ec = detail::get_last_error();
+        
+    kvm_close(kd);
+    return vec;
+}
+
+#elif defined(__NetBSD__)
+
+std::vector<pid_type> all_pids(error_code & ec)
+{
+    std::vector<pid_type> vec;
+    int cntp = 0;
+    kinfo_proc2  *proc_info = nullptr;
+    kd = kvm_openfiles(nullptr, nullptr, nullptr, KVM_NO_FILES, nullptr);
+    if (!kd)
+    {
+        ec = detail::get_last_error();
+        return vec;
+    } 
+    if ((proc_info = kvm_getproc2(kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc2), &cntp)))
+    {
+      vec.reserve(cntp);
+      for (int i = cntp - 1; i >= 0; i--) {
+        vec.push_back(proc_info[i].p_pid);
+      }
+    }
+    else
+        ec = detail::get_last_error();
+    kvm_close(kd);
+    return vec;
+}
+
+#elif defined(__OpenBSD__)
+
+std::vector<pid_type> all_pids(error_code & ec)
+{
+    std::vector<pid_type> vec;
+    int cntp = 0;
+    kinfo_proc *proc_info = nullptr;
+    kd = kvm_openfiles(nullptr, nullptr, nullptr, KVM_NO_FILES, nullptr);
+
+    if (!kd)
+    {
+        ec = detail::get_last_error();
+        return vec;
+    } 
+    if ((proc_info = kvm_getprocs(kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &cntp)))
+    {
+      vec.reserve(cntp);
+      for (int i = 0; i < cntp; i++) {
+        if (proc_info[i].kp_pid >= 0) {
+          vec.push_back(proc_info[i].kp_pid);
+        }
+      }
+    }
+    else
+        ec = detail::get_last_error();
+    kvm_close(kd);
+    return vec;
+}
+
+#elif defined(__sun)
+
+std::vector<pid_type> all_pids(error_code & ec)
+{
+    std::vector<pid_type> vec;
+    struct pid cur_pid;
+    proc *proc_info = nullptr;
+    kd = kvm_open(nullptr, nullptr, nullptr, O_RDONLY, nullptr);
+    if (!kd)
+    {
+        ec = detail::get_last_error();
+        return vec;
+    } 
+    
+    while ((proc_info = kvm_nextproc(kd)))
+     {
+      if (kvm_kread(kd, (std::uintptr_t)proc_info->p_pidp, &cur_pid, sizeof(cur_pid)) != -1) {
+        vec.insert(vec.begin(), cur_pid.pid_id);
+      }
+      else
+      {
+        ec = detail::get_last_error();
+        break;
+      }
+    }
+    kvm_close(kd);
+    return vec;
+}
+
+
+#else
+#error "Platform not supported"
+
+
+#endif defined(BOOST_PROCESS_V2_WINDOWS)
+
+
+std::vector<pid_type> all_pids()
+{
+    error_code ec;
+    auto res = all_pids(ec);
+    if (ec)
+        detail::throw_error(ec, "all_pids");
+    return res;
+}
+
+
+
 BOOST_PROCESS_V2_END_NAMESPACE
 
 #endif //BOOST_PROCESS_V2_IMPL_PID_IPP

include/boost/process/v2/pid.hpp

@@ -6,6 +6,7 @@
 #define BOOST_PROCESS_V2_PID_HPP
 
 #include <boost/process/v2/detail/config.hpp>
+#include <boost/process/v2/detail/throw_error.hpp>
 
 BOOST_PROCESS_V2_BEGIN_NAMESPACE
 
@@ -31,6 +32,12 @@ typedef int pid_type;
 /// Get the process id of the current process.
 BOOST_PROCESS_V2_DECL pid_type current_pid();
 
+/// List all available pids.
+BOOST_PROCESS_V2_DECL std::vector<pid_type> all_pids(error_code & ec);
+
+/// List all available pids.
+BOOST_PROCESS_V2_DECL std::vector<pid_type> all_pids();
+
 BOOST_PROCESS_V2_END_NAMESPACE
 
 #if defined(BOOST_PROCESS_V2_HEADER_ONLY)

include/boost/process/v2/popen.hpp

@@ -74,6 +74,8 @@ struct basic_popen : basic_process<Executor>
     {
     }
 
+
+
     /// Construct a child from a property list and launch it using the default process launcher.
     template<typename ... Inits>
     explicit basic_popen(
@@ -83,66 +85,30 @@ struct basic_popen : basic_process<Executor>
             Inits&&... inits)
             : basic_process<Executor>(executor)
     {
-        this->basic_process<Executor>::operator=(
+        *static_cast<basic_process<Executor>*>(this) =
             default_process_launcher()(
                     this->get_executor(), exe, args,
                     std::forward<Inits>(inits)...,
                     process_stdio{stdin_, stdout_}
-                    ));
-    }
+                    );
 
-    /// Construct a child from a property list and launch it using the default process launcher.
-    template<typename Launcher, typename ... Inits>
-    explicit basic_popen(
-            Launcher && launcher,
-            executor_type executor,
-            const filesystem::path& exe,
-            std::initializer_list<string_view> args,
-            Inits&&... inits)
-            : basic_process<Executor>(executor)
-    {
-        this->basic_process<Executor>::operator=(
-            std::forward<Launcher>(launcher)(
-                    this->get_executor(), exe, args,
-                    std::forward<Inits>(inits)...,
-                    process_stdio{stdin_, stdout_}
-                    ));
     }
 
     /// Construct a child from a property list and launch it using the default process launcher.
     template<typename ... Inits>
     explicit basic_popen(
             executor_type executor,
-            const filesystem::path& exe,
+    const filesystem::path& exe,
             std::initializer_list<wstring_view> args,
             Inits&&... inits)
             : basic_process<Executor>(executor)
     {
-        this->basic_process<Executor>::operator=(
+        *static_cast<basic_process<Executor>*>(this) =
                 default_process_launcher()(
                         this->get_executor(), exe, args,
                         std::forward<Inits>(inits)...,
                         process_stdio{stdin_, stdout_}
-                ));
-    }
-
-
-    /// Construct a child from a property list and launch it using the default process launcher.
-    template<typename Launcher, typename ... Inits>
-    explicit basic_popen(
-            Launcher && launcher, 
-            executor_type executor,
-            const filesystem::path& exe,
-            std::initializer_list<wstring_view> args,
-            Inits&&... inits)
-            : basic_process<Executor>(executor)
-    {
-        this->basic_process<Executor>::operator=(
-                std::forward<Launcher>(launcher)(
-                        this->get_executor(), exe, args,
-                        std::forward<Inits>(inits)...,
-                        process_stdio{stdin_, stdout_}
-                ));
+                );
     }
 
     /// Construct a child from a property list and launch it using the default process launcher.
@@ -153,112 +119,53 @@ struct basic_popen : basic_process<Executor>
             Args&& args, Inits&&... inits)
             : basic_process<Executor>(executor)
     {
-        this->basic_process<Executor>::operator=(
+        *static_cast<basic_process<Executor>*>(this) =
                 default_process_launcher()(
                         std::move(executor), exe, args,
                         std::forward<Inits>(inits)...,
                         process_stdio{stdin_, stdout_}
-                ));
-    }
-
-    /// Construct a child from a property list and launch it using the default process launcher.
-    template<typename Launcher, typename Args, typename ... Inits>
-    explicit basic_popen(
-            Launcher && launcher, 
-            executor_type executor,
-            const filesystem::path& exe,
-            Args&& args, Inits&&... inits)
-            : basic_process<Executor>(executor)
-    {
-        this->basic_process<Executor>::operator=(
-                std::forward<Launcher>(launcher)(
-                        std::move(executor), exe, args,
-                        std::forward<Inits>(inits)...,
-                        process_stdio{stdin_, stdout_}
-                ));
+                );
     }
 
     /// Construct a child from a property list and launch it using the default process launcher.
     template<typename ExecutionContext, typename ... Inits>
     explicit basic_popen(
             ExecutionContext & context,
-            typename std::enable_if<
-                std::is_convertible<ExecutionContext&,
+    typename std::enable_if<
+            std::is_convertible<ExecutionContext&,
                     BOOST_PROCESS_V2_ASIO_NAMESPACE::execution_context&>::value,
             const filesystem::path&>::type exe,
             std::initializer_list<string_view> args,
-            Inits&&... inits)
+    Inits&&... inits)
             : basic_process<Executor>(context)
     {
-        this->basic_process<Executor>::operator=(
+        *static_cast<basic_process<Executor>*>(this) =
                 default_process_launcher()(
                         this->get_executor(), exe, args,
                         std::forward<Inits>(inits)...,
                         process_stdio{stdin_, stdout_}
-                ));
-    }
-
-        /// Construct a child from a property list and launch it using the default process launcher.
-    template<typename Launcher, typename ExecutionContext, typename ... Inits>
-    explicit basic_popen(
-            Launcher && launcher, 
-            ExecutionContext & context,
-            typename std::enable_if<
-                std::is_convertible<ExecutionContext&,
-                    BOOST_PROCESS_V2_ASIO_NAMESPACE::execution_context&>::value,
-            const filesystem::path&>::type exe,
-            std::initializer_list<string_view> args,
-            Inits&&... inits)
-            : basic_process<Executor>(context)
-    {
-        this->basic_process<Executor>::operator=(
-                std::forward<Launcher>(launcher)(
-                        this->get_executor(), exe, args,
-                        std::forward<Inits>(inits)...,
-                        process_stdio{stdin_, stdout_}
-                ));
+                );
     }
 
     /// Construct a child from a property list and launch it using the default process launcher.
     template<typename ExecutionContext, typename Args, typename ... Inits>
     explicit basic_popen(
             ExecutionContext & context,
-            typename std::enable_if<
-                std::is_convertible<ExecutionContext&,
+    typename std::enable_if<
+            std::is_convertible<ExecutionContext&,
                     BOOST_PROCESS_V2_ASIO_NAMESPACE::execution_context&>::value,
             const filesystem::path&>::type exe,
             Args&& args, Inits&&... inits)
             : basic_process<Executor>(context)
     {
-        this->basic_process<Executor>::operator=(
+        *static_cast<basic_process<Executor>*>(this) =
                 default_process_launcher()(
                         this->get_executor(), exe, args,
                         std::forward<Inits>(inits)...,
                         process_stdio{stdin_, stdout_}
-                ));
+                );
     }
 
-        /// Construct a child from a property list and launch it using the default process launcher.
-    template<typename Launcher, typename ExecutionContext, typename Args, typename ... Inits>
-    explicit basic_popen(
-            Launcher && launcher, 
-            ExecutionContext & context,
-            typename std::enable_if<
-                std::is_convertible<ExecutionContext&,
-                    BOOST_PROCESS_V2_ASIO_NAMESPACE::execution_context&>::value,
-            const filesystem::path&>::type exe,
-            Args&& args, Inits&&... inits)
-            : basic_process<Executor>(context)
-    {
-        this->basic_process<Executor>::operator=(
-                std::forward<Launcher>(launcher)(
-                        this->get_executor(), exe, args,
-                        std::forward<Inits>(inits)...,
-                        process_stdio{stdin_, stdout_}
-                ));
-    }
-
-
     /// The type used for stdin on the parent process side.
     using stdin_type = BOOST_PROCESS_V2_ASIO_NAMESPACE::basic_writable_pipe<Executor>;
     /// The type used for stdout on the parent process side.

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

@@ -94,7 +94,6 @@ struct bind_fd
     error_code on_setup(posix::default_launcher & launcher, const filesystem::path &, const char * const *)
     {
         launcher.fd_whitelist.push_back(target);
-        return {};
     }
 
     /// Implementation of the initialization function.

include/boost/process/v2/process.hpp

@@ -214,6 +214,37 @@ struct basic_process
     process_handle_.request_exit(ec);
   }
 
+  /// Send the process a signal requesting it to stop. This may rely on undocmented functions.
+  void suspend(error_code &ec)
+  {
+    process_handle_.suspend(ec);
+  }
+
+  /// Send the process a signal requesting it to stop. This may rely on undocmented functions.
+  void suspend()
+  {
+    error_code ec;
+    suspend(ec);
+    if (ec)
+        detail::throw_error(ec, "suspend");
+  }
+
+
+  /// Send the process a signal requesting it to resume. This may rely on undocmented functions.
+  void resume(error_code &ec)
+  {
+    process_handle_.resume(ec);  
+  }
+
+  /// Send the process a signal requesting it to resume. This may rely on undocmented functions.
+  void resume()
+  {
+      error_code ec;
+      suspend(ec);
+      if (ec)
+          detail::throw_error(ec, "resume");
+  }
+
   /// Throwing @overload void terminate(native_exit_code_type &exit_code, error_code & ec)
   void terminate()
   {

include/boost/process/v2/start_dir.hpp

@@ -11,7 +11,6 @@
 #define BOOST_PROCESS_v2_START_DIR_HPP
 
 #include <boost/process/v2/detail/config.hpp>
-#include <boost/process/v2/detail/last_error.hpp>
 #include <boost/process/v2/default_launcher.hpp>
 
 BOOST_PROCESS_V2_BEGIN_NAMESPACE

include/boost/process/v2/stdio.hpp

@@ -11,7 +11,6 @@
 #define BOOST_PROCESS_V2_STDIO_HPP
 
 #include <boost/process/v2/detail/config.hpp>
-#include <boost/process/v2/detail/last_error.hpp>
 #include <boost/process/v2/default_launcher.hpp>
 #include <cstddef>
 #if defined(BOOST_PROCESS_V2_STANDALONE)

meta/libraries.json

@@ -1,6 +1,6 @@
 {
   "key": "process",
-  "name": "Process",
+  "name": "process",
   "authors": [
     "Merino Vidal", "Ilya Sokolov", "Felipe Tanus", 
     "Jeff Flinn", "Thomas Jarosch", "Boris Schaeling", "Klemens D. Morgenstern"

test/Jamfile.jam

@@ -100,8 +100,8 @@ test-suite with-valgrind :
     [ run env.cpp     program_options system filesystem       : [ test-options env ] : sparring_partner ]
     [ run group.cpp     system thread filesystem              : [ test-options group ] : sub_launch ]
     [ run group.cpp          system thread filesystem         : [ test-options group ] : sub_launch : <build>no <target-os>windows:<build>yes <define>BOOST_USE_WINDOWS_H=1 : group-windows-h ]
-    [ run group_wait.cpp     system thread filesystem         : [ test-options group_wait ] : sparring_partner : <target-os>darwin:<build>no <target-os>freebsd:<build>no ]
-	[ run limit_fd.cpp     program_options system filesystem  : [ test-options limit_fd ] : sparring_partner : <target-os>freebsd:<build>no ]
+    [ run group_wait.cpp     system thread filesystem         : [ test-options group_wait ] : sparring_partner : <target-os>darwin:<build>no ]
+	[ run limit_fd.cpp     program_options system filesystem  : [ test-options limit_fd ] : sparring_partner ]
     [ run run_exe.cpp filesystem                              : : sparring_partner ]
     [ run run_exe_path.cpp filesystem                         : [ test-options run_exe_path ] : sparring_partner ]
     [ run search_path.cpp filesystem system                   : [ test-options search_path ] : : <target-os>windows:<source>shell32 ]

test/group_wait.cpp

@@ -16,7 +16,7 @@
 
 #include <boost/asio.hpp>
 #include <boost/algorithm/string/predicate.hpp>
-#include <boost/scope_exit.hpp>
+
 #include <boost/process/error.hpp>
 #include <boost/process/io.hpp>
 #include <boost/process/args.hpp>
@@ -45,10 +45,6 @@ BOOST_AUTO_TEST_CASE(wait_group_test, *boost::unit_test::timeout(5))
             BOOST_REQUIRE(done.load());
         }};
 
-    BOOST_SCOPE_EXIT_ALL(&) {    
-        done.store(true);
-        thr.join();
-    };
 
     using boost::unit_test::framework::master_test_suite;
 
@@ -82,6 +78,9 @@ BOOST_AUTO_TEST_CASE(wait_group_test, *boost::unit_test::timeout(5))
 
     BOOST_CHECK(!c1.running());
     BOOST_CHECK(!c2.running());
+
+    done.store(true);
+    thr.join();
 }
 
 

test/limit_fd.cpp

@@ -40,19 +40,12 @@ BOOST_AUTO_TEST_CASE(leak_test, *boost::unit_test::timeout(5))
 {
     using boost::unit_test::framework::master_test_suite;
 
-    
-
 #if defined(BOOST_WINDOWS_API)
     const auto get_handle       = [](FILE * f)                       {return reinterpret_cast<bt::native_handle_type>(_get_osfhandle(_fileno(f)));};
     const auto socket_to_handle = [](::boost::winapi::UINT_PTR_ sock){return reinterpret_cast<::boost::winapi::HANDLE_>(sock);};
 #else
     const auto get_handle = [](FILE * f) {return fileno(f);};
     const auto socket_to_handle = [](int i){ return i;};
-
-#if !defined(__linux__)
-    return ;
-#endif
-
 #endif
 
     std::error_code ec;

test/v2/CMakeLists.txt

@@ -4,9 +4,6 @@ add_library(boost_process_v2_test_impl test_impl.cpp)
 target_link_libraries(boost_process_v2_test_impl Boost::process Boost::unit_test_framework Boost::process)
 target_compile_definitions(boost_process_v2_test_impl PUBLIC -DBOOST_PROCESS_V2_SEPARATE_COMPILATION=1)
 
-if (WIN32)
-    target_compile_definitions(boost_process_v2_test_impl PUBLIC WIN32_LEAN_AND_MEAN=1)
-endif()
 
 function(boost_process_v2_standalone_test name)
     add_executable(boost_process_v2_${name} ${name}.cpp)

test/v2/Jamfile.jam

@@ -46,6 +46,7 @@ lib test_impl : test_impl.cpp filesystem :
         <link>static
         <target-os>windows:<source>shell32
         <target-os>windows:<source>user32
+        <target-os>windows:<source>Ntdll
         ;
 
 test-suite standalone :

test/v2/pid.cpp

@@ -12,4 +12,8 @@ BOOST_AUTO_TEST_CASE(test_pid)
 {
     namespace bp2 = boost::process::v2;
     BOOST_CHECK_NE(bp2::current_pid(), static_cast<bp2::pid_type>(0));
+
+    auto all = bp2::all_pids();
+    auto itr = std::find(all.begin(), all.end(), bp2::current_pid());
+    BOOST_CHECK(itr != all.end());
 }

test/v2/process.cpp

@@ -24,7 +24,6 @@
 #include <boost/process/v2/start_dir.hpp>
 #include <boost/process/v2/execute.hpp>
 #include <boost/process/v2/stdio.hpp>
-#include <boost/process/v2/bind_launcher.hpp>
 
 #include <boost/test/unit_test.hpp>
 #include <boost/asio/io_context.hpp>
@@ -150,6 +149,8 @@ BOOST_AUTO_TEST_CASE(terminate)
   
   BOOST_CHECK_MESSAGE(!sh.empty(), sh);
   bpv::process proc(ctx, sh, {});
+  proc.suspend();
+  proc.resume();
   proc.terminate();
   proc.wait();
 }
@@ -160,12 +161,7 @@ BOOST_AUTO_TEST_CASE(request_exit)
 
   auto sh = closable();
   BOOST_CHECK_MESSAGE(!sh.empty(), sh);
-
-  asio::readable_pipe rp{ctx};
-  asio::writable_pipe wp{ctx};
-  asio::connect_pipe(rp, wp);
-
-  bpv::process proc(ctx, sh, {}, bpv::process_stdio{wp}
+  bpv::process proc(ctx, sh, {}
 #if defined(ASIO_WINDOWS)
     , asio::windows::show_window_minimized_not_active
 #endif
@@ -363,16 +359,16 @@ BOOST_AUTO_TEST_CASE(popen)
 
 
     // default CWD
-    bpv::popen proc(/*bpv::default_process_launcher(), */ctx, pth, {"echo"});
+    bpv::popen proc(ctx, pth, {"echo"});
 
-    asio::write(proc, asio::buffer("FOOBAR"));
+    auto written = asio::write(proc, asio::buffer("FOOBAR"));
     proc.get_stdin().close();
 
     std::string res;
     boost::system::error_code ec;
     std::size_t n = asio::read(proc, asio::dynamic_buffer(res), ec);
-    BOOST_CHECK_MESSAGE(ec == asio::error::eof || ec == asio::error::broken_pipe, ec.message());
-    BOOST_REQUIRE_GE(n, 1u);
+    BOOST_CHECK(ec == asio::error::eof || ec == asio::error::broken_pipe);
+    BOOST_REQUIRE_GE(n, 1);
     // remove EOF
     res.pop_back();
     BOOST_CHECK_EQUAL(res, "FOOBAR");
@@ -434,10 +430,7 @@ std::string read_env(const char * name, Inits && ... inits)
   std::string out;
   bpv::error_code ec;
 
-   auto sz = asio::read(rp, asio::dynamic_buffer(out),  ec);
-  while (ec == asio::error::interrupted)
-    sz += asio::read(rp, asio::dynamic_buffer(out),  ec);
-
+  const auto sz = asio::read(rp, asio::dynamic_buffer(out),  ec);
   BOOST_CHECK_MESSAGE((ec == asio::error::broken_pipe) || (ec == asio::error::eof), ec.message());
   out.resize(sz);
   trim_end(out);
@@ -482,64 +475,5 @@ BOOST_AUTO_TEST_CASE(environment)
   BOOST_CHECK_EQUAL(read_env("PATH", bpv::process_environment(bpv::environment::current())), ::getenv("PATH"));
 }
 
-BOOST_AUTO_TEST_CASE(exit_code_as_error)
-{
-  using boost::unit_test::framework::master_test_suite;
-  const auto pth = bpv::filesystem::absolute(master_test_suite().argv[1]);
-
-  asio::io_context ctx;
-
-  bpv::process proc1(ctx, pth, {"exit-code", "0"});
-  bpv::process proc2(ctx, pth, {"exit-code", "2"});
-  bpv::process proc3(ctx, pth, {"sleep", "2000"});
-
-  int called = 0;
-  
-  proc3.terminate();
-
-  proc1.async_wait(bpv::code_as_error([&](bpv::error_code ec){called ++; BOOST_CHECK(!ec);}));
-  proc2.async_wait(bpv::code_as_error([&](bpv::error_code ec){called ++; BOOST_CHECK_MESSAGE(ec, ec.message());}));
-  proc3.async_wait(bpv::code_as_error([&](bpv::error_code ec){called ++; BOOST_CHECK_MESSAGE(ec, ec.message());}));
-
-  ctx.run();
-  BOOST_CHECK_EQUAL(called, 3);
-
-}
-
-BOOST_AUTO_TEST_CASE(bind_launcher)
-{
-  using boost::unit_test::framework::master_test_suite;
-  const auto pth = bpv::filesystem::absolute(master_test_suite().argv[1]);
-
-  asio::io_context ctx;
-
-  asio::readable_pipe rp{ctx};
-  asio::writable_pipe wp{ctx};
-  asio::connect_pipe(rp, wp);
-
-  auto target = bpv::filesystem::canonical(bpv::filesystem::temp_directory_path());
-
-  auto l = bpv::bind_default_launcher(bpv::process_start_dir(target));
-
-  std::vector<std::string> args = {"print-cwd"};
-  // default CWD
-  bpv::process proc = l(ctx, pth, args, bpv::process_stdio{/*.in=*/{}, /*.out=*/wp});
-  wp.close();
-
-  std::string out;
-  bpv::error_code ec;
-
-  auto sz = asio::read(rp, asio::dynamic_buffer(out),  ec);
-  while (ec == asio::error::interrupted)
-    sz += asio::read(rp, asio::dynamic_buffer(out),  ec);
-  BOOST_CHECK(sz != 0);
-  BOOST_CHECK_MESSAGE((ec == asio::error::broken_pipe) || (ec == asio::error::eof), ec.message());
-  BOOST_CHECK_MESSAGE(bpv::filesystem::path(out) == target,
-                      bpv::filesystem::path(out) << " != " << target);
-
-  proc.wait();
-  BOOST_CHECK_MESSAGE(proc.exit_code() == 0, proc.exit_code() << " from " << proc.native_exit_code());
-}
-
 BOOST_AUTO_TEST_SUITE_END();
 

test/v2/shell.cpp

@@ -39,9 +39,9 @@ BOOST_AUTO_TEST_CASE(test_shell_parser)
     BOOST_CHECK(sh.argv()[2] == STR_VIEW("foo bar"));
 
 #if defined(BOOST_PROCESS_V2_POSIX)
-    auto raw_shell = "sh -c true";
+    auto raw_shell = "sh -c false";
 #else
-    auto raw_shell = "cmd /c exit 0";
+    auto raw_shell = "cmd /c exit 1";
 #endif
     sh = shell(raw_shell);
 
@@ -52,5 +52,5 @@ BOOST_AUTO_TEST_CASE(test_shell_parser)
     bpv::process proc{ctx, exe, sh.args()};
 
     proc.wait();
-    BOOST_CHECK_EQUAL(proc.exit_code(), 0);
+    BOOST_CHECK_EQUAL(proc.exit_code(), 1);
 }

test/wait_for.cpp

@@ -40,7 +40,7 @@ BOOST_AUTO_TEST_CASE(wait_for)
 
 
     BOOST_CHECK(!c.wait_for(std::chrono::milliseconds(200)));
-    BOOST_CHECK( c.wait_for(std::chrono::milliseconds(2000)));
+    BOOST_CHECK( c.wait_for(std::chrono::milliseconds(1000)));
 
     auto timeout_t = std::chrono::system_clock::now();