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haiku support yayyy

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Mars 2025-05-03 19:13:28 +00:00
parent 054a98298b
commit 311484b724
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src/os/haiku.cpp Normal file
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#ifdef __HAIKU__
// clang-format off
#include <File.h> // For BFile
#include <AppFileInfo.h> // For BAppFileInfo and version_info
#include <String.h> // For BString (optional, can use std::string
#include <Errors.h> // Haiku specific: Defines B_OK and strerror function
#include <OS.h> // Haiku specific: Defines get_system_info, system_info, status_t
#include <climits> // PATH_MAX
#include <cstring> // std::strlen
#include <dbus/dbus-protocol.h> // DBUS_TYPE_*
#include <dbus/dbus-shared.h> // DBUS_BUS_SESSION
#include <os/package/PackageDefs.h> // Should define typedef ... BPackageKit::BPackageInfoSet;
#include <os/package/PackageInfoSet.h> // Defines BPackageKit::BPackageInfo (template argument)
#include <os/package/PackageRoster.h> // Defines BPackageKit::BPackageRoster
#include <support/Errors.h> // For B_OK, status_t, strerror
#include <sys/socket.h> // ucred, getsockopt, SOL_SOCKET, SO_PEERCRED
#include <sys/statvfs.h> // statvfs
#include <utility> // std::move
#include "src/util/defs.hpp"
#include "src/util/error.hpp"
#include "src/util/helpers.hpp"
#include "src/util/logging.hpp"
#include "src/util/types.hpp"
#include "src/wrappers/dbus.hpp"
#include "src/wrappers/wayland.hpp"
#include "src/wrappers/xcb.hpp"
#include "os.hpp"
// clang-format on
using namespace util::types;
using util::error::DracError, util::error::DracErrorCode;
using util::helpers::GetEnv;
namespace {
fn GetX11WindowManager() -> Result<String, DracError> {
using namespace xcb;
const DisplayGuard conn;
if (!conn)
if (const i32 err = connection_has_error(conn.get()))
return Err(DracError(DracErrorCode::ApiUnavailable, [&] -> String {
if (const Option<ConnError> connErr = getConnError(err)) {
switch (*connErr) {
case Generic: return "Stream/Socket/Pipe Error";
case ExtNotSupported: return "Extension Not Supported";
case MemInsufficient: return "Insufficient Memory";
case ReqLenExceed: return "Request Length Exceeded";
case ParseErr: return "Display String Parse Error";
case InvalidScreen: return "Invalid Screen";
case FdPassingFailed: return "FD Passing Failed";
default: return std::format("Unknown Error Code ({})", err);
}
}
return std::format("Unknown Error Code ({})", err);
}()));
fn internAtom = [&conn](const StringView name) -> Result<atom_t, DracError> {
const ReplyGuard<intern_atom_reply_t> reply(
intern_atom_reply(conn.get(), intern_atom(conn.get(), 0, static_cast<u16>(name.size()), name.data()), nullptr)
);
if (!reply)
return Err(
DracError(DracErrorCode::PlatformSpecific, std::format("Failed to get X11 atom reply for '{}'", name))
);
return reply->atom;
};
const Result<atom_t, DracError> supportingWmCheckAtom = internAtom("_NET_SUPPORTING_WM_CHECK");
const Result<atom_t, DracError> wmNameAtom = internAtom("_NET_WM_NAME");
const Result<atom_t, DracError> utf8StringAtom = internAtom("UTF8_STRING");
if (!supportingWmCheckAtom || !wmNameAtom || !utf8StringAtom) {
if (!supportingWmCheckAtom)
error_log("Failed to get _NET_SUPPORTING_WM_CHECK atom");
if (!wmNameAtom)
error_log("Failed to get _NET_WM_NAME atom");
if (!utf8StringAtom)
error_log("Failed to get UTF8_STRING atom");
return Err(DracError(DracErrorCode::PlatformSpecific, "Failed to get X11 atoms"));
}
const ReplyGuard<get_property_reply_t> wmWindowReply(get_property_reply(
conn.get(),
get_property(conn.get(), 0, conn.rootScreen()->root, *supportingWmCheckAtom, ATOM_WINDOW, 0, 1),
nullptr
));
if (!wmWindowReply || wmWindowReply->type != ATOM_WINDOW || wmWindowReply->format != 32 ||
get_property_value_length(wmWindowReply.get()) == 0)
return Err(DracError(DracErrorCode::NotFound, "Failed to get _NET_SUPPORTING_WM_CHECK property"));
const window_t wmRootWindow = *static_cast<window_t*>(get_property_value(wmWindowReply.get()));
const ReplyGuard<get_property_reply_t> wmNameReply(get_property_reply(
conn.get(), get_property(conn.get(), 0, wmRootWindow, *wmNameAtom, *utf8StringAtom, 0, 1024), nullptr
));
if (!wmNameReply || wmNameReply->type != *utf8StringAtom || get_property_value_length(wmNameReply.get()) == 0)
return Err(DracError(DracErrorCode::NotFound, "Failed to get _NET_WM_NAME property"));
const char* nameData = static_cast<const char*>(get_property_value(wmNameReply.get()));
const usize length = get_property_value_length(wmNameReply.get());
return String(nameData, length);
}
fn GetWaylandCompositor() -> Result<String, DracError> {
const wl::DisplayGuard display;
if (!display)
return Err(DracError(DracErrorCode::NotFound, "Failed to connect to display (is Wayland running?)"));
const i32 fileDescriptor = display.fd();
if (fileDescriptor < 0)
return Err(DracError(DracErrorCode::ApiUnavailable, "Failed to get Wayland file descriptor"));
ucred cred;
socklen_t len = sizeof(cred);
if (getsockopt(fileDescriptor, SOL_SOCKET, SO_PEERCRED, &cred, &len) == -1)
return Err(DracError::withErrno("Failed to get socket credentials (SO_PEERCRED)"));
Array<char, 128> exeLinkPathBuf {};
auto [out, size] = std::format_to_n(exeLinkPathBuf.data(), exeLinkPathBuf.size() - 1, "/proc/{}/exe", cred.pid);
if (out >= exeLinkPathBuf.data() + exeLinkPathBuf.size() - 1)
return Err(DracError(DracErrorCode::InternalError, "Failed to format /proc path (PID too large?)"));
*out = '\0';
const char* exeLinkPath = exeLinkPathBuf.data();
Array<char, PATH_MAX> exeRealPathBuf {};
const isize bytesRead = readlink(exeLinkPath, exeRealPathBuf.data(), exeRealPathBuf.size() - 1);
if (bytesRead == -1)
return Err(DracError::withErrno(std::format("Failed to read link '{}'", exeLinkPath)));
exeRealPathBuf.at(bytesRead) = '\0';
StringView compositorNameView;
const StringView pathView(exeRealPathBuf.data(), bytesRead);
StringView filenameView;
if (const usize lastCharPos = pathView.find_last_not_of('/'); lastCharPos != StringView::npos) {
const StringView relevantPart = pathView.substr(0, lastCharPos + 1);
if (const usize separatorPos = relevantPart.find_last_of('/'); separatorPos == StringView::npos)
filenameView = relevantPart;
else
filenameView = relevantPart.substr(separatorPos + 1);
}
if (!filenameView.empty())
compositorNameView = filenameView;
if (compositorNameView.empty() || compositorNameView == "." || compositorNameView == "/")
return Err(DracError(DracErrorCode::NotFound, "Failed to get compositor name from path"));
if (constexpr StringView wrappedSuffix = "-wrapped"; compositorNameView.length() > 1 + wrappedSuffix.length() &&
compositorNameView[0] == '.' && compositorNameView.ends_with(wrappedSuffix)) {
const StringView cleanedView =
compositorNameView.substr(1, compositorNameView.length() - 1 - wrappedSuffix.length());
if (cleanedView.empty())
return Err(DracError(DracErrorCode::NotFound, "Compositor name invalid after heuristic"));
return String(cleanedView);
}
return String(compositorNameView);
}
} // namespace
namespace os {
fn GetOSVersion() -> Result<String, DracError> {
BFile file;
status_t status = file.SetTo("/boot/system/lib/libbe.so", B_READ_ONLY);
if (status != B_OK) {
return Err(DracError(DracErrorCode::InternalError, "Error opening /boot/system/lib/libbe.so"));
}
BAppFileInfo appInfo;
status = appInfo.SetTo(&file);
if (status != B_OK) {
return Err(DracError(DracErrorCode::InternalError, "Error initializing BAppFileInfo"));
}
version_info versionInfo;
status = appInfo.GetVersionInfo(&versionInfo, B_APP_VERSION_KIND);
if (status != B_OK) {
return Err(DracError(DracErrorCode::InternalError, "Error reading version info attribute"));
}
std::string versionShortString = versionInfo.short_info;
if (versionShortString.empty()) {
return Err(DracError(DracErrorCode::InternalError, "Version info short_info is empty"));
}
return std::format("Haiku {}", versionShortString);
}
fn GetMemInfo() -> Result<u64, DracError> {
system_info sysinfo;
const status_t status = get_system_info(&sysinfo);
if (status != B_OK)
return Err(DracError(DracErrorCode::InternalError, std::format("get_system_info failed: {}", strerror(status))));
return static_cast<u64>(sysinfo.max_pages) * B_PAGE_SIZE;
}
fn GetNowPlaying() -> Result<MediaInfo, DracError> {
using namespace dbus;
Result<Connection, DracError> connectionResult = Connection::busGet(DBUS_BUS_SESSION);
if (!connectionResult)
return Err(connectionResult.error());
const Connection& connection = *connectionResult;
Option<String> activePlayer = None;
{
Result<Message, DracError> listNamesResult =
Message::newMethodCall("org.freedesktop.DBus", "/org/freedesktop/DBus", "org.freedesktop.DBus", "ListNames");
if (!listNamesResult)
return Err(listNamesResult.error());
Result<Message, DracError> listNamesReplyResult = connection.sendWithReplyAndBlock(*listNamesResult, 100);
if (!listNamesReplyResult)
return Err(listNamesReplyResult.error());
MessageIter iter = listNamesReplyResult->iterInit();
if (!iter.isValid() || iter.getArgType() != DBUS_TYPE_ARRAY)
return Err(DracError(DracErrorCode::ParseError, "Invalid DBus ListNames reply format: Expected array"));
MessageIter subIter = iter.recurse();
if (!subIter.isValid())
return Err(
DracError(DracErrorCode::ParseError, "Invalid DBus ListNames reply format: Could not recurse into array")
);
while (subIter.getArgType() != DBUS_TYPE_INVALID) {
if (Option<String> name = subIter.getString())
if (name->starts_with("org.mpris.MediaPlayer2.")) {
activePlayer = std::move(*name);
break;
}
if (!subIter.next())
break;
}
}
if (!activePlayer)
return Err(DracError(DracErrorCode::NotFound, "No active MPRIS players found"));
Result<Message, DracError> msgResult = Message::newMethodCall(
activePlayer->c_str(), "/org/mpris/MediaPlayer2", "org.freedesktop.DBus.Properties", "Get"
);
if (!msgResult)
return Err(msgResult.error());
Message& msg = *msgResult;
if (!msg.appendArgs("org.mpris.MediaPlayer2.Player", "Metadata"))
return Err(DracError(DracErrorCode::InternalError, "Failed to append arguments to Properties.Get message"));
Result<Message, DracError> replyResult = connection.sendWithReplyAndBlock(msg, 100);
if (!replyResult)
return Err(replyResult.error());
Option<String> title = None;
Option<String> artist = None;
MessageIter propIter = replyResult->iterInit();
if (!propIter.isValid())
return Err(DracError(DracErrorCode::ParseError, "Properties.Get reply has no arguments or invalid iterator"));
if (propIter.getArgType() != DBUS_TYPE_VARIANT)
return Err(DracError(DracErrorCode::ParseError, "Properties.Get reply argument is not a variant"));
MessageIter variantIter = propIter.recurse();
if (!variantIter.isValid())
return Err(DracError(DracErrorCode::ParseError, "Could not recurse into variant"));
if (variantIter.getArgType() != DBUS_TYPE_ARRAY || variantIter.getElementType() != DBUS_TYPE_DICT_ENTRY)
return Err(DracError(DracErrorCode::ParseError, "Metadata variant content is not a dictionary array (a{sv})"));
MessageIter dictIter = variantIter.recurse();
if (!dictIter.isValid())
return Err(DracError(DracErrorCode::ParseError, "Could not recurse into metadata dictionary array"));
while (dictIter.getArgType() == DBUS_TYPE_DICT_ENTRY) {
MessageIter entryIter = dictIter.recurse();
if (!entryIter.isValid()) {
debug_log("Warning: Could not recurse into dict entry, skipping.");
if (!dictIter.next())
break;
continue;
}
Option<String> key = entryIter.getString();
if (!key) {
debug_log("Warning: Could not get key string from dict entry, skipping.");
if (!dictIter.next())
break;
continue;
}
if (!entryIter.next() || entryIter.getArgType() != DBUS_TYPE_VARIANT) {
if (!dictIter.next())
break;
continue;
}
MessageIter valueVariantIter = entryIter.recurse();
if (!valueVariantIter.isValid()) {
if (!dictIter.next())
break;
continue;
}
if (*key == "xesam:title") {
title = valueVariantIter.getString();
} else if (*key == "xesam:artist") {
if (valueVariantIter.getArgType() == DBUS_TYPE_ARRAY && valueVariantIter.getElementType() == DBUS_TYPE_STRING) {
if (MessageIter artistArrayIter = valueVariantIter.recurse(); artistArrayIter.isValid())
artist = artistArrayIter.getString();
} else {
debug_log("Warning: Artist value was not an array of strings as expected.");
}
}
if (!dictIter.next())
break;
}
return MediaInfo(std::move(title), std::move(artist));
}
fn GetWindowManager() -> Result<String, DracError> {
if (Result<String, DracError> waylandResult = GetWaylandCompositor())
return *waylandResult;
if (Result<String, DracError> x11Result = GetX11WindowManager())
return *x11Result;
return Err(DracError(DracErrorCode::NotFound, "Could not detect window manager (Wayland/X11) or both failed"));
}
fn GetDesktopEnvironment() -> Result<String, DracError> {
return GetEnv("XDG_CURRENT_DESKTOP")
.transform([](String xdgDesktop) -> String {
if (const usize colon = xdgDesktop.find(':'); colon != String::npos)
xdgDesktop.resize(colon);
return xdgDesktop;
})
.or_else([](const DracError&) -> Result<String, DracError> { return GetEnv("DESKTOP_SESSION"); });
}
fn GetShell() -> Result<String, DracError> {
if (const Result<String, DracError> shellPath = GetEnv("SHELL")) {
// clang-format off
constexpr Array<Pair<StringView, StringView>, 5> shellMap {{
{ "bash", "Bash" },
{ "zsh", "Zsh" },
{ "fish", "Fish" },
{ "nu", "Nushell" },
{ "sh", "SH" }, // sh last because other shells contain "sh"
}};
// clang-format on
for (const auto& [exe, name] : shellMap)
if (shellPath->contains(exe))
return String(name);
return *shellPath; // fallback to the raw shell path
}
return Err(DracError(DracErrorCode::NotFound, "Could not find SHELL environment variable"));
}
fn GetHost() -> Result<String, DracError> {
Array<char, HOST_NAME_MAX + 1> hostnameBuffer {};
if (gethostname(hostnameBuffer.data(), hostnameBuffer.size()) != 0)
return Err(DracError(
DracErrorCode::ApiUnavailable,
std::format("gethostname() failed: {} (errno {})", strerror(errno), errno)
));
hostnameBuffer.at(HOST_NAME_MAX) = '\0';
return String(hostnameBuffer.data(), hostnameBuffer.size());
}
fn GetKernelVersion() -> Result<String, DracError> {
system_info sysinfo;
const status_t status = get_system_info(&sysinfo);
if (status != B_OK)
return Err(DracError(DracErrorCode::InternalError, std::format("get_system_info failed: {}", strerror(status))));
return std::to_string(sysinfo.kernel_version);
}
fn GetDiskUsage() -> Result<DiskSpace, DracError> {
struct statvfs stat;
if (statvfs("/boot", &stat) == -1)
return Err(DracError::withErrno(std::format("Failed to get filesystem stats for '/boot' (statvfs call failed)")));
return DiskSpace {
.used_bytes = (stat.f_blocks * stat.f_frsize) - (stat.f_bfree * stat.f_frsize),
.total_bytes = stat.f_blocks * stat.f_frsize,
};
}
fn GetPackageCount() -> Result<u64, DracError> {
u64 count = 0;
BPackageKit::BPackageRoster roster;
BPackageKit::BPackageInfoSet packageList;
const status_t status = roster.GetActivePackages(BPackageKit::B_PACKAGE_INSTALLATION_LOCATION_SYSTEM, packageList);
if (status != B_OK)
return Err(DracError(DracErrorCode::ApiUnavailable, "Failed to get active package list"));
count += static_cast<u64>(packageList.CountInfos());
if (Result<u64, DracError> sharedCount = shared::GetPackageCount())
count += *sharedCount;
else
debug_at(sharedCount.error());
return count;
}
} // namespace os
#endif // __HAIKU__