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Lagom: Win32 support baby steps

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This is the initial port of Lagom to win32. This will enable developers
to use Lagom as an alternative to vanilla STL/StandardC++Library - which
gives a much richer environment (think QtCore - but modern).

My main incentive - is to have a native Windows Ladybird working.

I am starting with AK, which does not yet fully compile (on mingw). When
AK is compiling (currently fails building StringBuffer.cpp) - I will
continue to LibCore and then the rest of the user space libraries
(excluding the GUI, which will be another different effort).

Most of the code is happily stollen from Andrew Kaster's fork - he
deserves the credit.

Co-authored-by: Andrew Kaster <akaster@serenityos.org>
This commit is contained in:
Diego Iastrubni 2022-09-20 10:15:12 +03:00 committed by Linus Groh
parent 767b23c4aa
commit 18257604eb
Notes: sideshowbarker 2024-07-17 06:33:24 +09:00 
Author: https://github.com/elcuco
Commit: https://github.com/SerenityOS/serenity/commit/18257604eb
Pull-request: https://github.com/SerenityOS/serenity/pull/15293
Reviewed-by: https://github.com/ADKaster ✅
Reviewed-by: https://github.com/linusg
7 changed files with 43 additions and 2 deletions
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10
AK/Platform.h
View File

@ -33,6 +33,10 @@
# define AK_OS_BSD_GENERIC
#endif
#if defined(_WIN32) || defined(_WIN64)
# define AK_OS_WINDOWS
#endif
// FIXME: Remove clang-format suppression after https://github.com/llvm/llvm-project/issues/56602 resolved
// clang-format off
#if defined(__ANDROID__)
@ -127,7 +131,11 @@ extern "C" {
# endif
#endif
#ifdef AK_OS_BSD_GENERIC
#if defined(AK_OS_WINDOWS)
# define CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC
#endif
#if defined(AK_OS_BSD_GENERIC)
# define CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC
# define CLOCK_REALTIME_COARSE CLOCK_REALTIME
#endif

10
AK/Random.h
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@ -21,6 +21,11 @@
# include <sys/random.h>
#endif
#if defined(AK_OS_WINDOWS)
# include <random>
# include <unistd.h>
#endif
namespace AK {
inline void fill_with_random([[maybe_unused]] void* buffer, [[maybe_unused]] size_t length)
@ -30,6 +35,11 @@ inline void fill_with_random([[maybe_unused]] void* buffer, [[maybe_unused]] siz
#elif defined(OSS_FUZZ)
#elif defined(__unix__) or defined(AK_OS_MACOS)
[[maybe_unused]] int rc = getentropy(buffer, length);
#else
char* char_buffer = static_cast<char*>(buffer);
for (size_t i = 0; i < length; i++) {
char_buffer[i] = std::rand();
}
#endif
}

6
AK/Singleton.h
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@ -13,6 +13,12 @@
# include <Kernel/Arch/Processor.h>
# include <Kernel/Arch/ScopedCritical.h>
# include <Kernel/Locking/SpinlockProtected.h>
#elif defined(AK_OS_WINDOWS)
// Forward declare to avoid pulling Windows.h into every file in existence.
extern "C" __declspec(dllimport) void __stdcall Sleep(unsigned long);
# ifndef sched_yield
# define sched_yield() Sleep(0)
# endif
#else
# include <sched.h>
#endif

5
AK/Time.cpp
View File

@ -179,7 +179,10 @@ timespec Time::to_timespec() const
timeval Time::to_timeval() const
{
VERIFY(m_nanoseconds < 1'000'000'000);
return { static_cast<time_t>(m_seconds), static_cast<suseconds_t>(m_nanoseconds) / 1000 };
// This is done because winsock defines tv_sec and tv_usec as long, and Linux64 as long int.
using sec_type = decltype(declval<timeval>().tv_sec);
using usec_type = decltype(declval<timeval>().tv_usec);
return { static_cast<sec_type>(m_seconds), static_cast<usec_type>(m_nanoseconds) / 1000 };
}
Time Time::operator+(Time const& other) const

4
AK/Time.h
View File

@ -16,6 +16,10 @@
struct timeval;
struct timespec;
#if defined(AK_OS_WINDOWS)
# include <time.h>
#endif
namespace AK {
// Concept to detect types which look like timespec without requiring the type.

4
AK/Types.h
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@ -50,6 +50,10 @@ using pid_t = int;
using __ptrdiff_t = __PTRDIFF_TYPE__;
# endif
# if defined(AK_OS_WINDOWS)
using ssize_t = MakeSigned<size_t>;
using mode_t = unsigned short;
# endif
#endif
using FlatPtr = Conditional<sizeof(void*) == 8, u64, u32>;

6
Meta/Lagom/CMakeLists.txt
View File

@ -265,6 +265,12 @@ if (ANDROID)
list(REMOVE_ITEM LIBCORE_SOURCES "${CMAKE_CURRENT_LIST_DIR}/../../Userland/Libraries/LibCore/Account.cpp")
list(REMOVE_ITEM LIBCORE_SOURCES "${CMAKE_CURRENT_LIST_DIR}/../../Userland/Libraries/LibCore/LocalServer.cpp")
endif()
if (WIN32)
list(REMOVE_ITEM LIBCORE_SOURCES "${CMAKE_CURRENT_LIST_DIR}/../../Userland/Libraries/LibCore/Account.cpp")
list(REMOVE_ITEM LIBCORE_SOURCES "${CMAKE_CURRENT_LIST_DIR}/../../Userland/Libraries/LibCore/FilePermissionsMask.cpp")
list(REMOVE_ITEM LIBCORE_SOURCES "${CMAKE_CURRENT_LIST_DIR}/../../Userland/Libraries/LibCore/Group.cpp")
list(REMOVE_ITEM LIBCORE_SOURCES "${CMAKE_CURRENT_LIST_DIR}/../../Userland/Libraries/LibCore/GetPassword.cpp")
endif()
lagom_lib(Core core
SOURCES ${AK_SOURCES} ${LIBCORE_SOURCES}
LIBS Threads::Threads