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Extract connection handling

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momo5502
2025-01-17 18:02:35 +01:00
parent 0253592ae9
commit cf76d5b4dc
3 changed files with 100 additions and 40 deletions
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60
src/gdb-stub/gdb_stub.cpp
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@@ -2,9 +2,9 @@
#include <network/tcp_server_socket.hpp>
#include "stream_processor.hpp"
#include "async_handler.hpp"
#include "checksum.hpp"
#include "async_handler.hpp"
#include "connection_handler.hpp"
using namespace std::literals;
@@ -20,12 +20,6 @@ namespace gdb_stub
step,
};
bool send_packet_reply(const network::tcp_client_socket& socket, const std::string_view data)
{
const auto checksum = compute_checksum_as_string(data);
return socket.send("$" + std::string(data) + "#" + checksum);
}
network::tcp_client_socket accept_client(const network::address& bind_address)
{
network::tcp_server_socket server{bind_address.get_family()};
@@ -37,19 +31,7 @@ namespace gdb_stub
return server.accept();
}
void read_from_socket(stream_processor& processor, network::tcp_client_socket& client)
{
while (client.is_ready(true))
{
const auto data = client.receive();
if (data)
{
processor.push_stream_data(*data);
}
}
}
void process_query(const network::tcp_client_socket& client, const std::string_view payload)
void process_query(const connection_handler& connection, const std::string_view payload)
{
auto name = payload;
std::string_view args{};
@@ -64,11 +46,11 @@ namespace gdb_stub
if (name == "Supported")
{
send_packet_reply(client, "PacketSize=1024;qXfer:features:read+");
connection.send_packet("PacketSize=1024;qXfer:features:read+");
}
else if (name == "Attached")
{
send_packet_reply(client, "1");
connection.send_packet("1");
}
else if (name == "Xfer")
{
@@ -76,15 +58,15 @@ namespace gdb_stub
}
else if (name == "Symbol")
{
send_packet_reply(client, "OK");
connection.send_packet("OK");
}
else
{
send_packet_reply(client, {});
connection.send_packet({});
}
}
continuation_event handle_command(const network::tcp_client_socket& client, const uint8_t command,
continuation_event handle_command(const connection_handler& connection, const uint8_t command,
const std::string_view data)
{
auto event = continuation_event::none;
@@ -92,20 +74,20 @@ namespace gdb_stub
switch (command)
{
case 'q':
process_query(client, data);
process_query(connection, data);
break;
default:
send_packet_reply(client, {});
connection.send_packet({});
break;
}
return event;
}
void process_packet(const network::tcp_client_socket& client, const std::string_view packet)
void process_packet(const connection_handler& connection, const std::string_view packet)
{
(void)client.send("+");
(void)connection.send_raw_data("+");
if (packet.empty())
{
@@ -113,7 +95,7 @@ namespace gdb_stub
}
const auto command = packet.front();
const auto event = handle_command(client, command, packet.substr(1));
const auto event = handle_command(connection, command, packet.substr(1));
(void)event;
}
@@ -125,8 +107,6 @@ namespace gdb_stub
bool run_gdb_stub(const network::address& bind_address, gdb_stub_handler& handler)
{
stream_processor processor{};
auto client = accept_client(bind_address);
if (!client)
{
@@ -148,17 +128,17 @@ namespace gdb_stub
}
}};
client.set_blocking(false);
connection_handler connection{client};
while (client.is_valid())
while (true)
{
read_from_socket(processor, client);
while (processor.has_packet())
const auto packet = connection.get_packet();
if (!packet)
{
const auto packet = processor.get_next_packet();
process_packet(client, packet);
break;
}
process_packet(connection, *packet);
}
return true;