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+// Copyright (c) 2008 The NetBSD Foundation, Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
+// CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+// IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
+// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+// IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+// IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#if !defined(ATF_CXX_DETAIL_PROCESS_HPP)
+#define ATF_CXX_DETAIL_PROCESS_HPP
+
+extern "C" {
+#include <sys/types.h>
+
+#include <atf-c/detail/process.h>
+#include <atf-c/error.h>
+}
+
+#include <string>
+#include <vector>
+
+#include <atf-c++/detail/auto_array.hpp>
+#include <atf-c++/detail/exceptions.hpp>
+#include <atf-c++/detail/fs.hpp>
+
+namespace atf {
+namespace process {
+
+class child;
+class status;
+
+// ------------------------------------------------------------------------
+// The "argv_array" type.
+// ------------------------------------------------------------------------
+
+class argv_array {
+ typedef std::vector< std::string > args_vector;
+ args_vector m_args;
+
+ // TODO: This is immutable, so we should be able to use
+ // std::tr1::shared_array instead when it becomes widely available.
+ // The reason would be to remove all copy constructors and assignment
+ // operators from this class.
+ auto_array< const char* > m_exec_argv;
+ void ctor_init_exec_argv(void);
+
+public:
+ typedef args_vector::const_iterator const_iterator;
+ typedef args_vector::size_type size_type;
+
+ argv_array(void);
+ argv_array(const char*, ...);
+ explicit argv_array(const char* const*);
+ template< class C > explicit argv_array(const C&);
+ argv_array(const argv_array&);
+
+ const char* const* exec_argv(void) const;
+ size_type size(void) const;
+ const char* operator[](int) const;
+
+ const_iterator begin(void) const;
+ const_iterator end(void) const;
+
+ argv_array& operator=(const argv_array&);
+};
+
+template< class C >
+argv_array::argv_array(const C& c)
+{
+ for (typename C::const_iterator iter = c.begin(); iter != c.end();
+ iter++)
+ m_args.push_back(*iter);
+ ctor_init_exec_argv();
+}
+
+// ------------------------------------------------------------------------
+// The "stream" types.
+// ------------------------------------------------------------------------
+
+class basic_stream {
+protected:
+ atf_process_stream_t m_sb;
+ bool m_inited;
+
+ const atf_process_stream_t* get_sb(void) const;
+
+public:
+ basic_stream(void);
+ ~basic_stream(void);
+};
+
+class stream_capture : basic_stream {
+ // Allow access to the getters.
+ template< class OutStream, class ErrStream > friend
+ child fork(void (*)(void*), const OutStream&, const ErrStream&, void*);
+ template< class OutStream, class ErrStream > friend
+ status exec(const atf::fs::path&, const argv_array&,
+ const OutStream&, const ErrStream&, void (*)(void));
+
+public:
+ stream_capture(void);
+};
+
+class stream_connect : basic_stream {
+ // Allow access to the getters.
+ template< class OutStream, class ErrStream > friend
+ child fork(void (*)(void*), const OutStream&, const ErrStream&, void*);
+ template< class OutStream, class ErrStream > friend
+ status exec(const atf::fs::path&, const argv_array&,
+ const OutStream&, const ErrStream&, void (*)(void));
+
+public:
+ stream_connect(const int, const int);
+};
+
+class stream_inherit : basic_stream {
+ // Allow access to the getters.
+ template< class OutStream, class ErrStream > friend
+ child fork(void (*)(void*), const OutStream&, const ErrStream&, void*);
+ template< class OutStream, class ErrStream > friend
+ status exec(const atf::fs::path&, const argv_array&,
+ const OutStream&, const ErrStream&, void (*)(void));
+
+public:
+ stream_inherit(void);
+};
+
+class stream_redirect_fd : basic_stream {
+ // Allow access to the getters.
+ template< class OutStream, class ErrStream > friend
+ child fork(void (*)(void*), const OutStream&, const ErrStream&, void*);
+ template< class OutStream, class ErrStream > friend
+ status exec(const atf::fs::path&, const argv_array&,
+ const OutStream&, const ErrStream&, void (*)(void));
+
+public:
+ stream_redirect_fd(const int);
+};
+
+class stream_redirect_path : basic_stream {
+ // Allow access to the getters.
+ template< class OutStream, class ErrStream > friend
+ child fork(void (*)(void*), const OutStream&, const ErrStream&, void*);
+ template< class OutStream, class ErrStream > friend
+ status exec(const atf::fs::path&, const argv_array&,
+ const OutStream&, const ErrStream&, void (*)(void));
+
+public:
+ stream_redirect_path(const fs::path&);
+};
+
+// ------------------------------------------------------------------------
+// The "status" type.
+// ------------------------------------------------------------------------
+
+class status {
+ atf_process_status_t m_status;
+
+ friend class child;
+ template< class OutStream, class ErrStream > friend
+ status exec(const atf::fs::path&, const argv_array&,
+ const OutStream&, const ErrStream&, void (*)(void));
+
+ status(atf_process_status_t&);
+
+public:
+ ~status(void);
+
+ bool exited(void) const;
+ int exitstatus(void) const;
+
+ bool signaled(void) const;
+ int termsig(void) const;
+ bool coredump(void) const;
+};
+
+// ------------------------------------------------------------------------
+// The "child" type.
+// ------------------------------------------------------------------------
+
+class child {
+ atf_process_child_t m_child;
+ bool m_waited;
+
+ template< class OutStream, class ErrStream > friend
+ child fork(void (*)(void*), const OutStream&, const ErrStream&, void*);
+
+ child(atf_process_child_t& c);
+
+public:
+ ~child(void);
+
+ status wait(void);
+
+ pid_t pid(void) const;
+ int stdout_fd(void);
+ int stderr_fd(void);
+};
+
+// ------------------------------------------------------------------------
+// Free functions.
+// ------------------------------------------------------------------------
+
+namespace detail {
+void flush_streams(void);
+} // namespace detail
+
+// TODO: The void* cookie can probably be templatized, thus also allowing
+// const data structures.
+template< class OutStream, class ErrStream >
+child
+fork(void (*start)(void*), const OutStream& outsb,
+ const ErrStream& errsb, void* v)
+{
+ atf_process_child_t c;
+
+ detail::flush_streams();
+ atf_error_t err = atf_process_fork(&c, start, outsb.get_sb(),
+ errsb.get_sb(), v);
+ if (atf_is_error(err))
+ throw_atf_error(err);
+
+ return child(c);
+}
+
+template< class OutStream, class ErrStream >
+status
+exec(const atf::fs::path& prog, const argv_array& argv,
+ const OutStream& outsb, const ErrStream& errsb,
+ void (*prehook)(void))
+{
+ atf_process_status_t s;
+
+ detail::flush_streams();
+ atf_error_t err = atf_process_exec_array(&s, prog.c_path(),
+ argv.exec_argv(),
+ outsb.get_sb(),
+ errsb.get_sb(),
+ prehook);
+ if (atf_is_error(err))
+ throw_atf_error(err);
+
+ return status(s);
+}
+
+template< class OutStream, class ErrStream >
+status
+exec(const atf::fs::path& prog, const argv_array& argv,
+ const OutStream& outsb, const ErrStream& errsb)
+{
+ return exec(prog, argv, outsb, errsb, NULL);
+}
+
+} // namespace process
+} // namespace atf
+
+#endif // !defined(ATF_CXX_DETAIL_PROCESS_HPP)
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