build; fix compilation errors under win32

win32 builds are still totally unsupported, untested, and functionally
broken.

alloc/raw/malloc.hpp

@@ -12,7 +12,16 @@
 #include "../../view.hpp"
 
 #include <cstddef>
+#include <cstdlib>
 
+#if defined(PLATFORM_WIN32)
+inline int
+posix_memalign (void **ptr, std::size_t align, std::size_t size)
+{
+    *ptr = _aligned_malloc (size, align);
+    return *ptr ? 0 : errno;
+}
+#endif
 
 namespace cruft::alloc::raw {
     class malloc {

backtrace_stackwalk.cpp

@@ -9,9 +9,8 @@
 #include "backtrace.hpp"
 
 #include "debug.hpp"
-#include "except.hpp"
 #include "types.hpp"
-#include "win32/error.hpp"
+#include "win32/except.hpp"
 
 #include <windows.h>
 #include <dbghelp.h>
@@ -70,7 +69,7 @@ backtrace::backtrace ()
         if (frame.AddrPC.Offset == frame.AddrReturn.Offset)
             break;
 
-        m_frames.push_back ((void*)frame.AddrPC.Offset);
+        m_frames.push_back (reinterpret_cast<void*> (frame.AddrPC.Offset));
     }
 }
 
@@ -81,7 +80,7 @@ debug::operator<< (std::ostream &os, const debug::backtrace &b)
 {
     const auto self = GetCurrentProcess ();
 
-    struct [[gnu::packed]] {
+    struct {
         IMAGEHLP_SYMBOL64 info;
         char name[255];
     } sym;
@@ -93,7 +92,7 @@ debug::operator<< (std::ostream &os, const debug::backtrace &b)
         // Find the symbol name
         sym.info.Name[0] = '\0';
         memset (sym.name, 0, sizeof (sym.name));
-        SymGetSymFromAddr64 (self, (uintptr_t)frame, nullptr, &sym.info);
+        SymGetSymFromAddr64 (self, reinterpret_cast<uintptr_t> (frame), nullptr, &sym.info);
         *std::rbegin (sym.name) = '\0';
 
         os << self << '\t' << frame << '\t' << sym.info.Name << '\n';

debug.cpp

@@ -68,6 +68,7 @@ warn (const char *msg)
 
 
 ////////////////////////////////////////////////////////////////////////////////
+#if !defined(PLATFORM_WIN32)
 void
 cruft::debug::init [[gnu::constructor]] (void)
 {
@@ -94,6 +95,7 @@ debug_wait [[gnu::constructor]] (void)
             await_debugger ();
     }
 }
+#endif
 
 
 ///////////////////////////////////////////////////////////////////////////////

debug_win32.cpp

@@ -8,10 +8,8 @@
 
 #include "debug.hpp"
 
-#include "except.hpp"
 #include "log.hpp"
-#include "except.hpp"
-#include "win32/error.hpp"
+#include "win32/except.hpp"
 
 #include <windows.h>
 #include <iostream>

encode/base.hpp

@@ -142,16 +142,20 @@ namespace cruft::encode {
             // convert whole groups of symbols while we have enough bytes remaining
             auto cursor = std::cbegin (src);
             for (size_t i = 0, last = std::size (src) / group_bytes; i != last; ++i) {
-                auto tally = std::accumulate (
-                    cursor, cursor + group_bytes,
-                    uint_fast32_t {0},
+                auto const tally = std::accumulate (
+                    cursor,
+                    cursor + group_bytes,
+                    uint64_t {0},
                     [] (auto a, auto b) { return a << 8 | b; }
                 );
 
                 cursor += group_bytes;
 
-                for (int j = group_symbols - 1; j >= 0; --j)
-                    *dst++ = enc_v<Size>[tally >> (j * symbol_bits) & mask];
+                for (int j = group_symbols - 1; j >= 0; --j) {
+                    auto const shift = j * symbol_bits;
+                    auto const upper = tally >> shift;
+                    *dst++ = enc_v<Size>[upper & mask];
+                }
             }
 
             // we don't need to pad the output so we can early exit
@@ -163,7 +167,7 @@ namespace cruft::encode {
             auto tally = std::accumulate (
                 cursor,
                 std::cend (src),
-                uint_fast32_t {0},
+                uint64_t {0},
                 [] (auto a, auto b) { return a << 8 | b; }
             );
 

exe_win32.cpp

@@ -8,8 +8,7 @@
 
 #include "exe.hpp"
 
-#include "except.hpp"
-#incldue "win32/except.hpp"
+#include "win32/except.hpp"
 
 #include <experimental/filesystem>
 #include <vector>
@@ -23,7 +22,7 @@ cruft::image_path (void)
         std::vector<char> resolved (256);
 
 retry:
-        const auto written = GetModuleFileName (nullptr, resolved.data (), resolved.size ());
+        const auto written = GetModuleFileName (nullptr, resolved.data (), static_cast<DWORD> (resolved.size ()));
         if (written == 0)
             win32::error::throw_code ();
 

io.cpp

@@ -43,7 +43,7 @@ cruft::slurp (const std::experimental::filesystem::path &path)
     std::vector<T> buffer (size);
 
     CHECK_GE (size, 0);
-    size_t remaining = cruft::cast::sign<size_t> (size);
+    unsigned remaining = cruft::cast::lossless<unsigned> (size);
     T *cursor = buffer.data ();
 
     while (remaining) {
@@ -165,7 +165,7 @@ indenter::~indenter ()
 scoped_cwd::scoped_cwd ()
 {
     m_original.resize (16);
-    while (getcwd (&m_original[0], m_original.size ()) == nullptr && errno == ERANGE)
+    while (getcwd (&m_original[0], cruft::cast::lossless<int> (m_original.size ())) == nullptr && errno == ERANGE)
         m_original.resize (m_original.size () * 2);
     posix::error::try_code ();
 }

io_win32.cpp

@@ -9,8 +9,7 @@
 #include "io_win32.hpp"
 
 #include "debug.hpp"
-#include "except.hpp"
-#include "win32/error.hpp"
+#include "win32/except.hpp"
 
 #include <windows.h>
 
@@ -71,7 +70,7 @@ mapped_file::mapped_file (::cruft::win32::handle &&src,
     // requires a check for empty files before we perform the mapping to
     // detect errors it throws in that specific situation.
     DWORD hi_size, lo_size = GetFileSize (m_file, &hi_size);
-    m_size = (uint64_t)hi_size << 32 | lo_size;
+    m_size = static_cast<uint64_t> (hi_size) << 32 | lo_size;
 
     m_mapping.reset (
         CreateFileMapping (
@@ -87,11 +86,11 @@ mapped_file::mapped_file (::cruft::win32::handle &&src,
     // hell. Try not to collapse, but instead bail with a null mapping and
     // pray the user doesn't do something stupid with the result.
     if (!m_mapping) {
-        auto err = win32::error::last_code ();
+        auto err = ::cruft::win32::error::last_code ();
         if (err == ERROR_FILE_INVALID && m_size == 0)
             return;
 
-        win32::error::throw_code (err);
+        ::cruft::win32::error::throw_code (err);
     }
 
     auto view = MapViewOfFile (
@@ -102,7 +101,7 @@ mapped_file::mapped_file (::cruft::win32::handle &&src,
     );
 
     if (!view)
-        win32::error::throw_code ();
+        ::cruft::win32::error::throw_code ();
 
     m_data.reset (
         static_cast<unsigned char*> (view)

io_win32.hpp

@@ -3,12 +3,14 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  *
- * Copyright 2014-2016 Danny Robson <danny@nerdcruft.net>
+ * Copyright 2014-2018 Danny Robson <danny@nerdcruft.net>
  */
 
-#ifndef __UTIL_IO_WIN32_HPP
-#define __UTIL_IO_WIN32_HPP
+#pragma once
 
+#include "std.hpp"
+
+#include "pointer.hpp"
 #include "io.hpp"
 #include "win32/handle.hpp"
 #include "view.hpp"
@@ -46,6 +48,14 @@ namespace cruft {
     namespace detail::win32 {
         class mapped_file {
         public:
+            using value_type = u08;
+            using reference = value_type&;
+            using const_reference = const value_type&;
+            using iterator = value_type*;
+            using const_iterator = const value_type*;
+            using difference_type = std::iterator_traits<iterator>::difference_type;
+            using size_type = std::size_t;
+
             mapped_file (::cruft::win32::handle &&,
                          int fflags = O_RDONLY,
                          int mflags = PROT_READ);
@@ -105,5 +115,3 @@ namespace cruft {
 
     typedef detail::win32::mapped_file mapped_file;
 }
-
-#endif

job/queue.cpp

@@ -127,7 +127,7 @@ queue::reap ()
         // pop and notify as many doomed tasks as we can
         int count = 0;
         for (task *item; m_tasks.finishing.pop (item); ++count) {
-            item->done.notify ();
+            item->done.notify_all ();
             m_tasks.notified.push_back (item);
         }
 
@@ -159,7 +159,7 @@ queue::reap ()
     for (auto &i: m_tasks.notified)
         m_tasks.store.destroy (i);
     for (auto &i: doomed)
-        i->done.notify ();
+        i->done.notify_all ();
     for (auto &i: doomed)
         m_tasks.store.destroy (i);
 }

job/queue.hpp

@@ -133,7 +133,7 @@ namespace cruft::job {
 
             ~task ()
             {
-                done.notify ();
+                done.notify_all ();
                 references.acquire ();
             }
 

library_win32.cpp

@@ -15,10 +15,10 @@ using cruft::detail::win32::library;
 
 ///////////////////////////////////////////////////////////////////////////////
 library::library (const std::experimental::filesystem::path &path):
-    m_handle (LoadLibraryA (path.c_str ()))
+    m_handle (LoadLibraryA (path.u8string ().c_str ()))
 {
     if (!m_handle)
-        win32::error::throw_code ();
+        ::cruft::win32::error::throw_code ();
 }
 
 

pool.hpp

@@ -14,6 +14,8 @@
 #include "cast.hpp"
 
 #include <atomic>
+#include <new>
+
 #include <cstdlib>
 #include <cstdint>
 

posix/dir.cpp

@@ -15,7 +15,7 @@ using cruft::posix::dir;
 
 ///////////////////////////////////////////////////////////////////////////////
 dir::dir (const std::experimental::filesystem::path &p):
-    m_handle (::opendir (p.c_str ()))
+    m_handle (::opendir (p.u8string ().c_str ()))
 {
     if (!m_handle)
         error::throw_code ();

posix/except.cpp

@@ -9,6 +9,7 @@
 
 #include "except.hpp"
 
+#include "../platform.hpp"
 #include "../debug.hpp"
 
 #include <cstring>
@@ -103,7 +104,11 @@ error::what (void) const noexcept
 ///////////////////////////////////////////////////////////////////////////////
 using cruft::posix::eai;
 
+#if !defined(PLATFORM_WIN32)
 #include <netdb.h>
+#else
+#include <ws2tcpip.h>
+#endif
 
 
 //-----------------------------------------------------------------------------

posix/fd.cpp

@@ -9,6 +9,7 @@
 #include "fd.hpp"
 
 #include "except.hpp"
+#include "cast.hpp"
 
 #include <sys/stat.h>
 #include <fcntl.h>
@@ -25,7 +26,7 @@ fd::fd (const std::experimental::filesystem::path &path, int flags):
 
 //-----------------------------------------------------------------------------
 fd::fd (const std::experimental::filesystem::path &path, int flags, mode_t mode):
-    m_fd (error::try_value (::open (path.c_str (), flags, mode)))
+    m_fd (error::try_value (::open (path.u8string ().c_str (), flags, mode)))
 { ; }
 
 
@@ -141,10 +142,10 @@ fd::release (void)
 
 ///////////////////////////////////////////////////////////////////////////////
 ssize_t
-fd::read (void *buffer, size_t count)
+fd::read (void *buffer, std::size_t count)
 {
     return error::try_value (
-        ::read (m_fd, buffer, count)
+        ::read (m_fd, buffer, cruft::cast::narrow<unsigned> (count))
     );
 }
 
@@ -154,7 +155,7 @@ ssize_t
 fd::write (const void *buffer, size_t count)
 {
     return error::try_value (
-        ::write (m_fd, buffer, count)
+        ::write (m_fd, buffer, cruft::cast::narrow<unsigned> (count))
     );
 }
 

posix/socket.cpp

@@ -8,13 +8,19 @@
 
 #include "socket.hpp"
 
+#include "platform.hpp"
 #include "except.hpp"
 
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netdb.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
+#if !defined(PLATFORM_WIN32)
+    #include <sys/types.h>
+    #include <sys/socket.h>
+    #include <netdb.h>
+    #include <netinet/in.h>
+    #include <netinet/tcp.h>
+#else
+    #include <ws2tcpip.h>
+    #include <winsock2.h>
+#endif
 
 using cruft::posix::socket;
 

posix/socket.hpp

@@ -13,8 +13,12 @@
 
 #include "except.hpp"
 
-#include <sys/types.h>
-#include <sys/socket.h>
+#if !defined(PLATFORM_WIN32)
+    #include <sys/types.h>
+    #include <sys/socket.h>
+#else
+    #include <winsock2.h>
+#endif
 
 
 struct sockaddr_in;

tap.hpp

@@ -41,7 +41,8 @@ namespace cruft::TAP {
         {
             m_output << (test ? "ok " : "not ok ") << ++m_size
                      << " - "
-                     << format::printf (fmt) (std::forward<Args> (args)...) << '\n';
+                     << format::printf (fmt) (std::forward<Args> (args)...)
+                     << std::endl;
 
             if (!test)
                 m_status = EXIT_FAILURE;

term.cpp

@@ -16,8 +16,6 @@
 
 using cruft::term::csi::graphics;
 
-static const std::experimental::filesystem::path DEFAULT_SEARCH_DIR = "/usr/share/terminfo";
-
 const graphics graphics::RESET (0);
 
 
@@ -48,6 +46,8 @@ static
 std::experimental::filesystem::path
 find_terminfo_path [[gnu::unused]] (const std::string &key)
 {
+    static const std::experimental::filesystem::path DEFAULT_SEARCH_DIR = "/usr/share/terminfo";
+
     // check if the path is explicitly listed. must not fall through.
     if (const char *dir = getenv ("TERMINFO")) {
         return find_terminfo_path (dir, key);

test/encode/base.cpp

@@ -82,7 +82,9 @@ test_size (cruft::TAP::logger &tap)
             fragment
         );
 
-        tap.expect_eq (encoded, output_v<Size>[i],
+        tap.expect_eq (
+            encoded,
+            output_v<Size>[i],
             "%! character base%! encode; '%!' is '%!'", i, Size, encoded, output_v<Size>[i]
         );
 

test/hash/fasthash.cpp

@@ -2,7 +2,7 @@
 #include "tap.hpp"
 
 #include <cstring>
-#include <inttypes.h>
+#include <cinttypes>
 
 
 ///////////////////////////////////////////////////////////////////////////////

test/parallel/queue.cpp

@@ -81,7 +81,7 @@ main ()
         producers.emplace_back (produce, std::ref (src), i * chunk_size);
     }
 
-    start.notify ();
+    start.notify_all ();
 
     // wait for everyone to complete
     for (auto &t: producers)

test/thread/event.cpp

@@ -30,7 +30,7 @@ main ()
 
     tap.expect_eq (val, 0, "waiting actually blocks");
 
-    a.notify ();
+    a.notify_all ();
     t.join ();
 
     tap.expect_eq (val, 1, "notification released the lock");

test/thread/flag.cpp

@@ -20,7 +20,7 @@ main ()
     std::this_thread::sleep_for (std::chrono::milliseconds (100));
 
     tap.expect_eq (value, 0, "value hasn't been set during wait");
-    tap.expect_eq (f.notify (), 1, "notify reports one thread woke");
+    f.notify_all ();
 
     t1.join ();
     tap.expect_eq (value, 1, "value has been changed after wait");
@@ -52,7 +52,7 @@ main ()
             for (auto &row: flags) {
                 for (int i = 0; i < parallelism; ++i) {
                     if (i == idx)
-                        row[i].notify ();
+                        row[i].notify_all ();
                     else
                         row[i].wait ();
                 }

test/thread/spinlock.cpp

@@ -47,7 +47,7 @@ main ()
         for (unsigned i = 0; i < std::thread::hardware_concurrency (); ++i)
             contestants.emplace_back (fight, std::ref (start_flag), std::ref (l), iterations);
 
-        start_flag.notify ();
+        start_flag.notify_all ();
 
         for (auto &t: contestants)
             t.join ();

test/thread/ticketlock.cpp

@@ -67,7 +67,7 @@ main ()
         std::thread b (fight, std::ref (start_flag), std::ref (l), iterations, std::ref (b_finish));
 
         auto start = std::chrono::high_resolution_clock::now ();
-        start_flag.notify ();
+        start_flag.notify_all ();
 
         a.join ();
         b.join ();

thread/flag_futex.hpp

@@ -18,10 +18,14 @@ namespace cruft::thread {
     public:
         flag ();
 
+        /// blocks indefinitely until the flag has been set.
         void wait (void);
 
-        int notify (void);
-        int notify (int);
+        /// wake all the threads waiting on the flag
+        void notify (void);
+
+        /// wake at most 'n' threads waiting on the flag
+        void notify (int);
 
     private:
         std::atomic<int> value;

thread/flag_std.cpp

@@ -0,0 +1,44 @@
+#include "flag.hpp"
+
+#include "../win32/except.hpp"
+
+#include <synchapi.h>
+#include <windows.h>
+
+using cruft::thread::flag;
+
+
+///////////////////////////////////////////////////////////////////////////////
+flag::flag ():
+    fired (false)
+{ ; }
+
+
+///////////////////////////////////////////////////////////////////////////////
+void
+flag::wait (void)
+{
+    while (!fired) {
+        std::unique_lock lk (m_mutex);
+        m_condition.wait (lk, [this] () { return !!fired; });
+    }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+void
+flag::notify_one (void)
+{
+    std::unique_lock lk (m_mutex);
+    fired = true;
+    m_condition.notify_one ();
+}
+
+
+//-----------------------------------------------------------------------------
+void
+flag::notify_all (void)
+{
+    std::unique_lock lk (m_mutex);
+    fired = true;
+    m_condition.notify_all ();
+}

thread/semaphore_win32.cpp

@@ -0,0 +1,103 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * Copyright 2018 Danny Robson <danny@nerdcruft.net>
+ */
+
+#include "semaphore_win32.hpp"
+
+#include "../debug.hpp"
+
+using cruft::thread::semaphore;
+
+
+///////////////////////////////////////////////////////////////////////////////
+semaphore::semaphore ():
+    semaphore (1)
+{ ; }
+
+
+//-----------------------------------------------------------------------------
+semaphore::semaphore (int initial):
+    m_value (initial)
+{ ; }
+
+
+///////////////////////////////////////////////////////////////////////////////
+int
+semaphore::acquire (int count)
+{
+    CHECK_GE (count, 0);
+
+    do {
+        int now = m_value;
+
+        // if our value is positive then attempt to decrement it and return,
+        // else retry because someone interfered with us.
+        if (now - count >= 0) {
+            if (m_value.compare_exchange_weak (now, now - count))
+                return now - count;
+            continue;
+        }
+
+        // the count doesn't appear to allow us to acquire. sleep until
+        // there's been a modification and retry.
+        std::unique_lock lk (m_mutex);
+        m_cv.wait (lk, [&, this] () { return m_value - count >= 0; });
+    } while (1);
+}
+
+
+//-----------------------------------------------------------------------------
+int
+semaphore::acquire (void)
+{
+    return acquire (1);
+}
+
+
+//-----------------------------------------------------------------------------
+int
+semaphore::release (int count)
+{
+    auto res = m_value += count;
+    if (res > 0)
+        m_cv.notify_one();
+    return res;
+}
+
+
+//-----------------------------------------------------------------------------
+int
+semaphore::release (void)
+{
+    return release (1);
+}
+
+
+///////////////////////////////////////////////////////////////////////////////
+int
+semaphore::value (void) const
+{
+    return m_value;
+}
+
+
+//-----------------------------------------------------------------------------
+int
+semaphore::operator++ (void)
+{
+    return release ();
+}
+
+
+//-----------------------------------------------------------------------------
+int
+semaphore::operator-- (void)
+{
+    // we don't need to wake anyone because this will only serve to delay
+    // their wakeup.
+    return --m_value;
+}

time_win32.cpp

@@ -8,11 +8,11 @@
 
 #include "time.hpp"
 
-#include <windows.h>
+#include <thread>
 
 ///////////////////////////////////////////////////////////////////////////////
 void
 cruft::sleep (uint64_t ns)
 {
-    Sleep (ns / 1'000'000UL);
+    std::this_thread::sleep_for (std::chrono::nanoseconds (ns));
 }

win32/except.cpp

@@ -19,7 +19,7 @@ error::error (DWORD _code):
     runtime_error (code_string (_code)),
     m_code (_code)
 {
-    CHECK_NEQ (m_code, (DWORD)ERROR_SUCCESS);
+    CHECK_NEQ (m_code, static_cast<DWORD> (ERROR_SUCCESS));
 }
 
 
@@ -74,7 +74,7 @@ error::throw_code (void)
 void
 error::throw_code (DWORD code)
 {
-    CHECK_NEQ (code, (DWORD)ERROR_SUCCESS);
+    CHECK_NEQ (code, static_cast<DWORD> (ERROR_SUCCESS));
     throw error (code);
 }
 

win32/handle.cpp

@@ -1,6 +1,6 @@
 #include "handle.hpp"
 
-#include "../except.hpp"
+#include "except.hpp"
 
 using cruft::win32::handle;
 

win32/registry.cpp

@@ -8,9 +8,9 @@
 
 #include "registry.hpp"
 
-#include "error.hpp"
+#include "../cast.hpp"
 #include "../debug.hpp"
-#include "../except.hpp"
+#include "except.hpp"
 
 #include <string>
 #include <cstdint>
@@ -64,7 +64,7 @@ key::data (const char *name) const
     DWORD type;
     DWORD size = sizeof (value);
 
-    auto err = RegGetValue (m_handle, name, &value, restrict_to_id<T> (), nullptr, &value, &size);
+    auto err = RegGetValue (m_handle, name, &value, restrict_to_id<T> (), &type, &value, &size);
     win32::error::try_code (err);
 
     return value;
@@ -79,7 +79,7 @@ key::values (void) const
 
     for (DWORD i = 0; ; ++i) {
         std::string name (255, '\0');
-        DWORD size = name.size ();
+        DWORD size = cruft::cast::narrow<DWORD> (name.size ());
 
         auto err = RegEnumValue (m_handle, i, &name[0], &size, nullptr, nullptr, nullptr, nullptr);
         if (ERROR_NO_MORE_ITEMS == err)