AK: Use size_t for ByteBuffer sizes

This matches what we already do for string types.

14 files changed, 75 insertions, 70 deletions

diff --git a/AK/BufferStream.h b/AK/BufferStream.h
index b9f2990877..2e2e6bac17 100644
--- a/AK/BufferStream.h
+++ b/AK/BufferStream.h
@@ -311,7 +311,7 @@ public:
 
     BufferStream& operator<<(const ByteBuffer& value)
     {
-        for (ssize_t i = 0; i < value.size(); ++i)
+        for (size_t i = 0; i < value.size(); ++i)
             m_buffer[m_offset++] = value[i];
         return *this;
     }
@@ -349,7 +349,7 @@ public:
 
 private:
     ByteBuffer& m_buffer;
-    ssize_t m_offset { 0 };
+    size_t m_offset { 0 };
     bool m_read_failure { false };
 };
 
diff --git a/AK/ByteBuffer.h b/AK/ByteBuffer.h
index a15c42f375..23684f9820 100644
--- a/AK/ByteBuffer.h
+++ b/AK/ByteBuffer.h
@@ -38,12 +38,12 @@ namespace AK {
 
 class ByteBufferImpl : public RefCounted<ByteBufferImpl> {
 public:
-    static NonnullRefPtr<ByteBufferImpl> create_uninitialized(int size);
-    static NonnullRefPtr<ByteBufferImpl> create_zeroed(int);
-    static NonnullRefPtr<ByteBufferImpl> copy(const void*, int);
-    static NonnullRefPtr<ByteBufferImpl> wrap(void*, int);
-    static NonnullRefPtr<ByteBufferImpl> wrap(const void*, int);
-    static NonnullRefPtr<ByteBufferImpl> adopt(void*, int);
+    static NonnullRefPtr<ByteBufferImpl> create_uninitialized(size_t size);
+    static NonnullRefPtr<ByteBufferImpl> create_zeroed(size_t);
+    static NonnullRefPtr<ByteBufferImpl> copy(const void*, size_t);
+    static NonnullRefPtr<ByteBufferImpl> wrap(void*, size_t);
+    static NonnullRefPtr<ByteBufferImpl> wrap(const void*, size_t);
+    static NonnullRefPtr<ByteBufferImpl> adopt(void*, size_t);
 
     ~ByteBufferImpl() { clear(); }
 
@@ -56,18 +56,18 @@ public:
         m_data = nullptr;
     }
 
-    u8& operator[](int i)
+    u8& operator[](size_t i)
     {
         ASSERT(i < m_size);
         return m_data[i];
     }
-    const u8& operator[](int i) const
+    const u8& operator[](size_t i) const
     {
         ASSERT(i < m_size);
         return m_data[i];
     }
     bool is_empty() const { return !m_size; }
-    int size() const { return m_size; }
+    size_t size() const { return m_size; }
 
     u8* data() { return m_data; }
     const u8* data() const { return m_data; }
@@ -79,13 +79,13 @@ public:
     const void* end_pointer() const { return m_data + m_size; }
 
     // NOTE: trim() does not reallocate.
-    void trim(int size)
+    void trim(size_t size)
     {
         ASSERT(size <= m_size);
         m_size = size;
     }
 
-    void grow(int size);
+    void grow(size_t size);
 
 private:
     enum ConstructionMode {
@@ -94,13 +94,13 @@ private:
         Wrap,
         Adopt
     };
-    explicit ByteBufferImpl(int);                       // For ConstructionMode=Uninitialized
-    ByteBufferImpl(const void*, int, ConstructionMode); // For ConstructionMode=Copy
-    ByteBufferImpl(void*, int, ConstructionMode);       // For ConstructionMode=Wrap/Adopt
+    explicit ByteBufferImpl(size_t);                       // For ConstructionMode=Uninitialized
+    ByteBufferImpl(const void*, size_t, ConstructionMode); // For ConstructionMode=Copy
+    ByteBufferImpl(void*, size_t, ConstructionMode);       // For ConstructionMode=Wrap/Adopt
     ByteBufferImpl() {}
 
     u8* m_data { nullptr };
-    int m_size { 0 };
+    size_t m_size { 0 };
     bool m_owned { false };
 };
 
@@ -129,12 +129,12 @@ public:
         return *this;
     }
 
-    static ByteBuffer create_uninitialized(int size) { return ByteBuffer(ByteBufferImpl::create_uninitialized(size)); }
-    static ByteBuffer create_zeroed(int size) { return ByteBuffer(ByteBufferImpl::create_zeroed(size)); }
-    static ByteBuffer copy(const void* data, int size) { return ByteBuffer(ByteBufferImpl::copy(data, size)); }
-    static ByteBuffer wrap(const void* data, int size) { return ByteBuffer(ByteBufferImpl::wrap(data, size)); }
-    static ByteBuffer wrap(void* data, int size) { return ByteBuffer(ByteBufferImpl::wrap(data, size)); }
-    static ByteBuffer adopt(void* data, int size) { return ByteBuffer(ByteBufferImpl::adopt(data, size)); }
+    static ByteBuffer create_uninitialized(size_t size) { return ByteBuffer(ByteBufferImpl::create_uninitialized(size)); }
+    static ByteBuffer create_zeroed(size_t size) { return ByteBuffer(ByteBufferImpl::create_zeroed(size)); }
+    static ByteBuffer copy(const void* data, size_t size) { return ByteBuffer(ByteBufferImpl::copy(data, size)); }
+    static ByteBuffer wrap(const void* data, size_t size) { return ByteBuffer(ByteBufferImpl::wrap(data, size)); }
+    static ByteBuffer wrap(void* data, size_t size) { return ByteBuffer(ByteBufferImpl::wrap(data, size)); }
+    static ByteBuffer adopt(void* data, size_t size) { return ByteBuffer(ByteBufferImpl::adopt(data, size)); }
 
     ~ByteBuffer() { clear(); }
     void clear() { m_impl = nullptr; }
@@ -143,18 +143,18 @@ public:
     bool operator!() const { return is_null(); }
     bool is_null() const { return m_impl == nullptr; }
 
-    u8& operator[](int i)
+    u8& operator[](size_t i)
     {
         ASSERT(m_impl);
         return (*m_impl)[i];
     }
-    u8 operator[](int i) const
+    u8 operator[](size_t i) const
     {
         ASSERT(m_impl);
         return (*m_impl)[i];
     }
     bool is_empty() const { return !m_impl || m_impl->is_empty(); }
-    int size() const { return m_impl ? m_impl->size() : 0; }
+    size_t size() const { return m_impl ? m_impl->size() : 0; }
 
     u8* data() { return m_impl ? m_impl->data() : nullptr; }
     const u8* data() const { return m_impl ? m_impl->data() : nullptr; }
@@ -173,13 +173,13 @@ public:
     }
 
     // NOTE: trim() does not reallocate.
-    void trim(int size)
+    void trim(size_t size)
     {
         if (m_impl)
             m_impl->trim(size);
     }
 
-    ByteBuffer slice_view(int offset, int size) const
+    ByteBuffer slice_view(size_t offset, size_t size) const
     {
         if (is_null())
             return {};
@@ -190,7 +190,7 @@ public:
         return wrap(offset_pointer(offset), size);
     }
 
-    ByteBuffer slice(int offset, int size) const
+    ByteBuffer slice(size_t offset, size_t size) const
     {
         if (is_null())
             return {};
@@ -201,7 +201,7 @@ public:
         return copy(offset_pointer(offset), size);
     }
 
-    void grow(int size)
+    void grow(size_t size)
     {
         if (!m_impl)
             m_impl = ByteBufferImpl::create_uninitialized(size);
@@ -209,7 +209,7 @@ public:
             m_impl->grow(size);
     }
 
-    void append(const void* data, int data_size)
+    void append(const void* data, size_t data_size)
     {
         int old_size = size();
         grow(size() + data_size);
@@ -225,14 +225,14 @@ private:
     RefPtr<ByteBufferImpl> m_impl;
 };
 
-inline ByteBufferImpl::ByteBufferImpl(int size)
+inline ByteBufferImpl::ByteBufferImpl(size_t size)
     : m_size(size)
 {
     m_data = static_cast<u8*>(kmalloc(size));
     m_owned = true;
 }
 
-inline ByteBufferImpl::ByteBufferImpl(const void* data, int size, ConstructionMode mode)
+inline ByteBufferImpl::ByteBufferImpl(const void* data, size_t size, ConstructionMode mode)
     : m_size(size)
 {
     ASSERT(mode == Copy);
@@ -241,7 +241,7 @@ inline ByteBufferImpl::ByteBufferImpl(const void* data, int size, ConstructionMo
     m_owned = true;
 }
 
-inline ByteBufferImpl::ByteBufferImpl(void* data, int size, ConstructionMode mode)
+inline ByteBufferImpl::ByteBufferImpl(void* data, size_t size, ConstructionMode mode)
     : m_data(static_cast<u8*>(data))
     , m_size(size)
 {
@@ -252,7 +252,7 @@ inline ByteBufferImpl::ByteBufferImpl(void* data, int size, ConstructionMode mod
     }
 }
 
-inline void ByteBufferImpl::grow(int size)
+inline void ByteBufferImpl::grow(size_t size)
 {
     ASSERT(size > m_size);
     ASSERT(m_owned);
@@ -264,34 +264,34 @@ inline void ByteBufferImpl::grow(int size)
     kfree(old_data);
 }
 
-inline NonnullRefPtr<ByteBufferImpl> ByteBufferImpl::create_uninitialized(int size)
+inline NonnullRefPtr<ByteBufferImpl> ByteBufferImpl::create_uninitialized(size_t size)
 {
     return ::adopt(*new ByteBufferImpl(size));
 }
 
-inline NonnullRefPtr<ByteBufferImpl> ByteBufferImpl::create_zeroed(int size)
+inline NonnullRefPtr<ByteBufferImpl> ByteBufferImpl::create_zeroed(size_t size)
 {
     auto buffer = ::adopt(*new ByteBufferImpl(size));
     memset(buffer->data(), 0, size);
     return buffer;
 }
 
-inline NonnullRefPtr<ByteBufferImpl> ByteBufferImpl::copy(const void* data, int size)
+inline NonnullRefPtr<ByteBufferImpl> ByteBufferImpl::copy(const void* data, size_t size)
 {
     return ::adopt(*new ByteBufferImpl(data, size, Copy));
 }
 
-inline NonnullRefPtr<ByteBufferImpl> ByteBufferImpl::wrap(void* data, int size)
+inline NonnullRefPtr<ByteBufferImpl> ByteBufferImpl::wrap(void* data, size_t size)
 {
     return ::adopt(*new ByteBufferImpl(data, size, Wrap));
 }
 
-inline NonnullRefPtr<ByteBufferImpl> ByteBufferImpl::wrap(const void* data, int size)
+inline NonnullRefPtr<ByteBufferImpl> ByteBufferImpl::wrap(const void* data, size_t size)
 {
     return ::adopt(*new ByteBufferImpl(const_cast<void*>(data), size, Wrap));
 }
 
-inline NonnullRefPtr<ByteBufferImpl> ByteBufferImpl::adopt(void* data, int size)
+inline NonnullRefPtr<ByteBufferImpl> ByteBufferImpl::adopt(void* data, size_t size)
 {
     return ::adopt(*new ByteBufferImpl(data, size, Adopt));
 }
diff --git a/Applications/HexEditor/HexEditor.cpp b/Applications/HexEditor/HexEditor.cpp
index f5c96c7c77..1c4f1a53f7 100644
--- a/Applications/HexEditor/HexEditor.cpp
+++ b/Applications/HexEditor/HexEditor.cpp
@@ -92,7 +92,7 @@ void HexEditor::fill_selection(u8 fill_byte)
 
 void HexEditor::set_position(int position)
 {
-    if (position > m_buffer.size())
+    if (position > static_cast<int>(m_buffer.size()))
         return;
 
     m_position = position;
@@ -125,7 +125,7 @@ bool HexEditor::write_to_file(const StringView& path)
         return false;
     }
 
-    if (nwritten == m_buffer.size()) {
+    if (static_cast<size_t>(nwritten) == m_buffer.size()) {
         m_tracked_changes.clear();
         update();
     }
@@ -224,7 +224,7 @@ void HexEditor::mousedown_event(GUI::MouseEvent& event)
         auto byte_y = (absolute_y - hex_start_y) / line_height();
         auto offset = (byte_y * m_bytes_per_row) + byte_x;
 
-        if (offset < 0 || offset > m_buffer.size())
+        if (offset < 0 || offset > static_cast<int>(m_buffer.size()))
             return;
 
 #ifdef HEX_DEBUG
@@ -246,7 +246,7 @@ void HexEditor::mousedown_event(GUI::MouseEvent& event)
         auto byte_y = (absolute_y - text_start_y) / line_height();
         auto offset = (byte_y * m_bytes_per_row) + byte_x;
 
-        if (offset < 0 || offset > m_buffer.size())
+        if (offset < 0 || offset > static_cast<int>(m_buffer.size()))
             return;
 
 #ifdef HEX_DEBUG
@@ -293,7 +293,7 @@ void HexEditor::mousemove_event(GUI::MouseEvent& event)
             auto byte_y = (absolute_y - hex_start_y) / line_height();
             auto offset = (byte_y * m_bytes_per_row) + byte_x;
 
-            if (offset < 0 || offset > m_buffer.size())
+            if (offset < 0 || offset > static_cast<int>(m_buffer.size()))
                 return;
 
             m_selection_end = offset;
@@ -304,7 +304,7 @@ void HexEditor::mousemove_event(GUI::MouseEvent& event)
             auto byte_x = (absolute_x - text_start_x) / character_width();
             auto byte_y = (absolute_y - text_start_y) / line_height();
             auto offset = (byte_y * m_bytes_per_row) + byte_x;
-            if (offset < 0 || offset > m_buffer.size())
+            if (offset < 0 || offset > static_cast<int>(m_buffer.size()))
                 return;
 
             m_selection_end = offset;
@@ -367,7 +367,7 @@ void HexEditor::keydown_event(GUI::KeyEvent& event)
     }
 
     if (event.key() == KeyCode::Key_Down) {
-        if (m_position + bytes_per_row() < m_buffer.size()) {
+        if (m_position + bytes_per_row() < static_cast<int>(m_buffer.size())) {
             m_position += bytes_per_row();
             m_byte_position = 0;
             scroll_position_into_view(m_position);
@@ -389,7 +389,7 @@ void HexEditor::keydown_event(GUI::KeyEvent& event)
     }
 
     if (event.key() == KeyCode::Key_Right) {
-        if (m_position + 1 < m_buffer.size()) {
+        if (m_position + 1 < static_cast<int>(m_buffer.size())) {
             m_position++;
             m_byte_position = 0;
             scroll_position_into_view(m_position);
@@ -425,7 +425,7 @@ void HexEditor::hex_mode_keydown_event(GUI::KeyEvent& event)
         if (m_buffer.is_empty())
             return;
         ASSERT(m_position >= 0);
-        ASSERT(m_position < m_buffer.size());
+        ASSERT(m_position < static_cast<int>(m_buffer.size()));
 
         // yes, this is terrible... but it works.
         auto value = (event.key() >= KeyCode::Key_0 && event.key() <= KeyCode::Key_9)
@@ -438,7 +438,7 @@ void HexEditor::hex_mode_keydown_event(GUI::KeyEvent& event)
             m_byte_position++;
         } else {
             m_buffer.data()[m_position] = (m_buffer.data()[m_position] & 0xF0) | value; // save the first 4 bits, OR the new value in the last 4
-            if (m_position + 1 < m_buffer.size())
+            if (m_position + 1 < static_cast<int>(m_buffer.size()))
                 m_position++;
             m_byte_position = 0;
         }
@@ -454,11 +454,11 @@ void HexEditor::text_mode_keydown_event(GUI::KeyEvent& event)
     if (m_buffer.is_empty())
         return;
     ASSERT(m_position >= 0);
-    ASSERT(m_position < m_buffer.size());
+    ASSERT(m_position < static_cast<int>(m_buffer.size()));
 
     m_tracked_changes.set(m_position, m_buffer.data()[m_position]);
     m_buffer.data()[m_position] = (u8)event.text().characters()[0]; // save the first 4 bits, OR the new value in the last 4
-    if (m_position + 1 < m_buffer.size())
+    if (m_position + 1 < static_cast<int>(m_buffer.size()))
         m_position++;
     m_byte_position = 0;
 
@@ -534,7 +534,7 @@ void HexEditor::paint_event(GUI::PaintEvent& event)
     for (int i = min_row; i < max_row; i++) {
         for (int j = 0; j < bytes_per_row(); j++) {
             auto byte_position = (i * bytes_per_row()) + j;
-            if (byte_position >= m_buffer.size())
+            if (byte_position >= static_cast<int>(m_buffer.size()))
                 return;
 
             Color text_color = palette().color(foreground_role());
diff --git a/Applications/IRCClient/IRCClient.cpp b/Applications/IRCClient/IRCClient.cpp
index be027cfe45..0aa6fc4812 100644
--- a/Applications/IRCClient/IRCClient.cpp
+++ b/Applications/IRCClient/IRCClient.cpp
@@ -142,7 +142,7 @@ void IRCClient::process_line(ByteBuffer&& line)
     } state
         = Start;
 
-    for (int i = 0; i < line.size(); ++i) {
+    for (size_t i = 0; i < line.size(); ++i) {
         char ch = line[i];
         if (ch == '\r')
             continue;
diff --git a/DevTools/IPCCompiler/main.cpp b/DevTools/IPCCompiler/main.cpp
index d495f2efed..26edb81709 100644
--- a/DevTools/IPCCompiler/main.cpp
+++ b/DevTools/IPCCompiler/main.cpp
@@ -79,9 +79,9 @@ int main(int argc, char** argv)
 
     Vector<char> buffer;
 
-    int index = 0;
+    size_t index = 0;
 
-    auto peek = [&](int offset = 0) -> char {
+    auto peek = [&](size_t offset = 0) -> char {
         if ((index + offset) < file_contents.size())
             return file_contents[index + offset];
         return 0;
diff --git a/DevTools/Inspector/RemoteProcess.cpp b/DevTools/Inspector/RemoteProcess.cpp
index 49ec3312ee..abf1098504 100644
--- a/DevTools/Inspector/RemoteProcess.cpp
+++ b/DevTools/Inspector/RemoteProcess.cpp
@@ -121,7 +121,7 @@ void RemoteProcess::update()
             return;
         }
 
-        i32 length;
+        u32 length;
         int nread = m_socket->read((u8*)&length, sizeof(length));
         ASSERT(nread == sizeof(length));
 
diff --git a/Kernel/FileSystem/Ext2FileSystem.cpp b/Kernel/FileSystem/Ext2FileSystem.cpp
index 8778c2ca05..5bfb9cd4aa 100644
--- a/Kernel/FileSystem/Ext2FileSystem.cpp
+++ b/Kernel/FileSystem/Ext2FileSystem.cpp
@@ -923,8 +923,10 @@ bool Ext2FSInode::write_directory(const Vector<FS::DirectoryEntry>& entries)
     stream.fill_to_end(0);
 
     ssize_t nwritten = write_bytes(0, directory_data.size(), directory_data.data(), nullptr);
+    if (nwritten < 0)
+        return false;
     set_metadata_dirty(true);
-    return nwritten == directory_data.size();
+    return static_cast<size_t>(nwritten) == directory_data.size();
 }
 
 KResult Ext2FSInode::add_child(InodeIdentifier child_id, const StringView& name, mode_t mode)
diff --git a/Kernel/FileSystem/FileDescription.cpp b/Kernel/FileSystem/FileDescription.cpp
index 30cba4dd13..1bd1659563 100644
--- a/Kernel/FileSystem/FileDescription.cpp
+++ b/Kernel/FileSystem/FileDescription.cpp
@@ -182,7 +182,10 @@ ssize_t FileDescription::get_dir_entries(u8* buffer, ssize_t size)
     if (!metadata.is_valid())
         return -EIO;
 
-    int size_to_allocate = max(PAGE_SIZE, metadata.size);
+    if (size < 0)
+        return -EINVAL;
+
+    size_t size_to_allocate = max(PAGE_SIZE, metadata.size);
 
     auto temp_buffer = ByteBuffer::create_uninitialized(size_to_allocate);
     BufferStream stream(temp_buffer);
@@ -195,8 +198,8 @@ ssize_t FileDescription::get_dir_entries(u8* buffer, ssize_t size)
     });
     stream.snip();
 
-    if (size < temp_buffer.size())
-        return -1;
+    if (static_cast<size_t>(size) < temp_buffer.size())
+        return -EINVAL;
 
     copy_to_user(buffer, temp_buffer.data(), temp_buffer.size());
     return stream.offset();
diff --git a/Libraries/LibCore/EventLoop.cpp b/Libraries/LibCore/EventLoop.cpp
index 2b604e7f14..733acf0e11 100644
--- a/Libraries/LibCore/EventLoop.cpp
+++ b/Libraries/LibCore/EventLoop.cpp
@@ -90,7 +90,7 @@ public:
         s_rpc_clients.set(m_client_id, this);
         add_child(*m_socket);
         m_socket->on_ready_to_read = [this] {
-            i32 length;
+            u32 length;
             int nread = m_socket->read((u8*)&length, sizeof(length));
             if (nread == 0) {
                 dbg() << "RPC client disconnected";
@@ -117,7 +117,7 @@ public:
     void send_response(const JsonObject& response)
     {
         auto serialized = response.to_string();
-        i32 length = serialized.length();
+        u32 length = serialized.length();
         m_socket->write((const u8*)&length, sizeof(length));
         m_socket->write(serialized);
     }
diff --git a/Libraries/LibCore/Gzip.cpp b/Libraries/LibCore/Gzip.cpp
index 27238d6c19..28a2de7152 100644
--- a/Libraries/LibCore/Gzip.cpp
+++ b/Libraries/LibCore/Gzip.cpp
@@ -40,7 +40,7 @@ bool CGzip::is_compressed(const ByteBuffer& data)
 // see: https://tools.ietf.org/html/rfc1952#page-5
 static Optional<ByteBuffer> get_gzip_payload(const ByteBuffer& data)
 {
-    int current = 0;
+    size_t current = 0;
     auto read_byte = [&]() {
         if (current >= data.size()) {
             ASSERT_NOT_REACHED();
diff --git a/Libraries/LibCore/HttpRequest.cpp b/Libraries/LibCore/HttpRequest.cpp
index c1209b0ea5..14ea2ff816 100644
--- a/Libraries/LibCore/HttpRequest.cpp
+++ b/Libraries/LibCore/HttpRequest.cpp
@@ -82,7 +82,7 @@ Optional<HttpRequest> HttpRequest::from_raw_request(const ByteBuffer& raw_reques
     };
 
     State state { State::InMethod };
-    int index = 0;
+    size_t index = 0;
 
     auto peek = [&](int offset = 0) -> u8 {
         if (index + offset >= raw_request.size())
diff --git a/Libraries/LibCore/Socket.cpp b/Libraries/LibCore/Socket.cpp
index 4810f1cd53..35590d541a 100644
--- a/Libraries/LibCore/Socket.cpp
+++ b/Libraries/LibCore/Socket.cpp
@@ -162,12 +162,12 @@ ByteBuffer Socket::receive(int max_size)
 
 bool Socket::send(const ByteBuffer& data)
 {
-    int nsent = ::send(fd(), data.data(), data.size(), 0);
+    ssize_t nsent = ::send(fd(), data.data(), data.size(), 0);
     if (nsent < 0) {
         set_error(errno);
         return false;
     }
-    ASSERT(nsent == data.size());
+    ASSERT(static_cast<size_t>(nsent) == data.size());
     return true;
 }
 
diff --git a/Userland/dmesg.cpp b/Userland/dmesg.cpp
index f116e3a3c5..1557398fa2 100644
--- a/Userland/dmesg.cpp
+++ b/Userland/dmesg.cpp
@@ -53,7 +53,7 @@ int main(int argc, char** argv)
         return 1;
     }
     const auto& b = f->read_all();
-    for (auto i = 0; i < b.size(); ++i)
+    for (size_t i = 0; i < b.size(); ++i)
         putchar(b[i]);
     return 0;
 }
diff --git a/Userland/rpcdump.cpp b/Userland/rpcdump.cpp
index 3a2b82bcb4..7975911e2a 100644
--- a/Userland/rpcdump.cpp
+++ b/Userland/rpcdump.cpp
@@ -81,7 +81,7 @@ int main(int argc, char** argv)
 
         auto data = socket->read_all();
 
-        for (int i = 0; i < data.size(); ++i)
+        for (size_t i = 0; i < data.size(); ++i)
             putchar(data[i]);
         printf("\n");