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+// Copyright Antony Polukhin, 2016-2017.
+//
+// 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_STACKTRACE_DETAIL_SAFE_DUMP_POSIX_IPP
+#define BOOST_STACKTRACE_DETAIL_SAFE_DUMP_POSIX_IPP
+
+#include <boost/config.hpp>
+#ifdef BOOST_HAS_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <boost/stacktrace/safe_dump_to.hpp>
+
+#include <unistd.h> // ::write
+#include <fcntl.h> // ::open
+
+
+namespace boost { namespace stacktrace { namespace detail {
+
+std::size_t dump(int fd, const native_frame_ptr_t* frames, std::size_t frames_count) BOOST_NOEXCEPT {
+ // We do not retry, because this function must be typically called from signal handler so it's:
+ // * to scary to continue in case of EINTR
+ // * EAGAIN or EWOULDBLOCK may occur only in case of O_NONBLOCK is set for fd,
+ // so it seems that user does not want to block
+ if (::write(fd, frames, sizeof(native_frame_ptr_t) * frames_count) == -1) {
+ return 0;
+ }
+
+ return frames_count;
+}
+
+std::size_t dump(const char* file, const native_frame_ptr_t* frames, std::size_t frames_count) BOOST_NOEXCEPT {
+ const int fd = ::open(
+ file,
+ O_CREAT | O_WRONLY | O_TRUNC,
+#if defined(S_IWUSR) && defined(S_IRUSR) // Workarounds for some Android OSes
+ S_IWUSR | S_IRUSR
+#elif defined(S_IWRITE) && defined(S_IREAD)
+ S_IWRITE | S_IREAD
+#else
+ 0
+#endif
+ );
+ if (fd == -1) {
+ return 0;
+ }
+
+ const std::size_t size = boost::stacktrace::detail::dump(fd, frames, frames_count);
+ ::close(fd);
+ return size;
+}
+
+}}} // namespace boost::stacktrace::detail
+
+#endif // BOOST_STACKTRACE_DETAIL_SAFE_DUMP_POSIX_IPP