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/*
* Copyright (C) 2024 Igalia S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#pragma once
#include <wtf/MallocSpan.h>
#include <wtf/StdLibExtras.h>
#include <wtf/glib/GRefPtr.h>
#include <wtf/glib/GUniquePtr.h>
extern "C" {
void* g_malloc(size_t);
void* g_malloc0(size_t);
void* g_realloc(void*, size_t);
void* g_try_malloc(size_t);
void* g_try_malloc0(size_t);
void* g_try_realloc(void*, size_t);
void g_strfreev(char**);
}
namespace WTF {
struct GMalloc {
static void* malloc(size_t size) { return g_malloc(size); }
static void* tryMalloc(size_t size) { return g_try_malloc(size); }
static void* zeroedMalloc(size_t size) { return g_malloc0(size); }
static void* tryZeroedMalloc(size_t size) { return g_try_malloc0(size); }
static void* realloc(void* ptr, size_t size) { return g_realloc(ptr, size); }
static void* tryRealloc(void* ptr, size_t size) { return g_try_realloc(ptr, size); }
static void free(void* ptr) { g_free(ptr); }
static constexpr ALWAYS_INLINE size_t nextCapacity(size_t capacity)
{
return capacity + capacity / 4 + 1;
}
};
struct GMallocStrv {
static void free(char** ptr) { g_strfreev(ptr); }
};
template <typename T, typename Malloc = GMalloc>
using GMallocSpan = MallocSpan<T, Malloc>;
template<typename T, typename Malloc = GMalloc>
GMallocSpan<T, Malloc> adoptGMallocSpan(std::span<T> span)
{
return adoptMallocSpan<T, Malloc>(span);
}
template<typename Malloc = GMalloc>
GMallocSpan<char, Malloc> adoptGMallocString(char* str, size_t length)
{
return adoptGMallocSpan<char, Malloc>(unsafeMakeSpan(str, length));
}
template<typename Malloc = GMalloc>
GMallocSpan<char, Malloc> adoptGMallocString(char* str)
{
return adoptGMallocSpan<char, Malloc>(unsafeMakeSpan(str, str ? strlen(str) : 0));
}
WTF_EXPORT_PRIVATE GMallocSpan<char> gFileGetContents(const char* path, GUniqueOutPtr<GError>&);
WTF_EXPORT_PRIVATE GMallocSpan<char*, GMallocStrv> gKeyFileGetKeys(GKeyFile*, const char* groupName, GUniqueOutPtr<GError>&);
WTF_EXPORT_PRIVATE GMallocSpan<GParamSpec*> gObjectClassGetProperties(GObjectClass*);
WTF_EXPORT_PRIVATE GMallocSpan<const char*> gVariantGetStrv(const GRefPtr<GVariant>&);
inline std::span<const uint8_t> span(GBytes* bytes)
{
size_t size = 0;
const auto* ptr = static_cast<const uint8_t*>(g_bytes_get_data(bytes, &size));
return unsafeMakeSpan<const uint8_t>(ptr, size);
}
inline std::span<const uint8_t> span(const GRefPtr<GBytes>& bytes)
{
return span(bytes.get());
}
inline std::span<const uint8_t> span(GByteArray* array)
{
return unsafeMakeSpan<const uint8_t>(array->data, array->len);
}
inline std::span<const uint8_t> span(const GRefPtr<GByteArray>& array)
{
return span(array.get());
}
inline std::span<const uint8_t> span(GVariant* variant)
{
const auto* ptr = static_cast<const uint8_t*>(g_variant_get_data(variant));
size_t size = g_variant_get_size(variant);
return unsafeMakeSpan<const uint8_t>(ptr, size);
}
inline std::span<const uint8_t> span(const GRefPtr<GVariant>& variant)
{
return span(variant.get());
}
static inline std::span<char*> span(char** strv)
{
auto size = g_strv_length(strv);
return unsafeMakeSpan(strv, size);
}
template <typename T = void*, typename = std::enable_if_t<std::is_pointer_v<T>>>
inline std::span<T> span(GPtrArray* array)
{
if (!array)
return unsafeMakeSpan<T>(nullptr, 0);
return unsafeMakeSpan(static_cast<T*>(static_cast<void*>(array->pdata)), array->len);
}
template <typename T = void*, typename = std::enable_if_t<std::is_pointer_v<T>>>
inline std::span<T> span(GRefPtr<GPtrArray>& array)
{
return span<T>(array.get());
}
} // namespace WTF
using WTF::GMallocSpan;
using WTF::adoptGMallocString;
using WTF::gFileGetContents;
using WTF::gKeyFileGetKeys;
using WTF::gObjectClassGetProperties;
using WTF::gVariantGetStrv;
using WTF::span;
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