Make processes use InputReaders for their input. Move the process
ReadThread stuff into the main Process class (out of the Process Plugins). This has the (intended) side effect of disabling the command line tool from reading input/commands while the process is running (the input is directed to the running process rather than to the command interpreter). llvm-svn: 119329
This commit is contained in:
parent
7d19efd6ff
commit
ef5c6d02f5
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@ -20,6 +20,7 @@
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#include "lldb/Interpreter/Args.h"
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#include "lldb/Interpreter/Options.h"
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#include "lldb/Core/Broadcaster.h"
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#include "lldb/Core/Communication.h"
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#include "lldb/Core/Error.h"
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#include "lldb/Core/Event.h"
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#include "lldb/Core/StringList.h"
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@ -1678,6 +1679,10 @@ protected:
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UnixSignals m_unix_signals; /// This is the current signal set for this process.
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ConstString m_target_triple;
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lldb::ABISP m_abi_sp;
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lldb::InputReaderSP m_process_input_reader;
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lldb_private::Communication m_stdio_communication;
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lldb_private::Mutex m_stdio_comm_mutex;
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std::string m_stdout_data;
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typedef std::map<lldb::LanguageType, lldb::LanguageRuntimeSP> LanguageRuntimeCollection;
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LanguageRuntimeCollection m_language_runtimes;
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@ -1738,7 +1743,33 @@ protected:
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size_t
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WriteMemoryPrivate (lldb::addr_t addr, const void *buf, size_t size, Error &error);
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void
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AppendSTDOUT (const char *s, size_t len);
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static void
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STDIOReadThreadBytesReceived (void *baton, const void *src, size_t src_len);
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void
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PushProcessInputReader ();
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void
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PopProcessInputReader ();
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void
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ResetProcessInputReader ();
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void
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SetUpProcessInputReader (int file_descriptor);
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static size_t
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ProcessInputReaderCallback (void *baton,
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InputReader &reader,
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lldb::InputReaderAction notification,
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const char *bytes,
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size_t bytes_len);
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private:
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//------------------------------------------------------------------
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// For Process only
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@ -38,6 +38,7 @@ using namespace lldb_private;
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ConnectionFileDescriptor::ConnectionFileDescriptor () :
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Connection(),
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m_fd (-1),
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m_is_socket (false),
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m_should_close_fd (false)
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{
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lldb_private::LogIfAnyCategoriesSet (LIBLLDB_LOG_CONNECTION | LIBLLDB_LOG_OBJECT,
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@ -48,6 +49,7 @@ ConnectionFileDescriptor::ConnectionFileDescriptor () :
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ConnectionFileDescriptor::ConnectionFileDescriptor (int fd, bool owns_fd) :
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Connection(),
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m_fd (fd),
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m_is_socket (false),
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m_should_close_fd (owns_fd)
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{
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lldb_private::LogIfAnyCategoriesSet (LIBLLDB_LOG_CONNECTION | LIBLLDB_LOG_OBJECT,
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@ -324,22 +324,8 @@ Debugger::DispatchInputCallback (void *baton, const void *bytes, size_t bytes_le
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void
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Debugger::DispatchInput (const char *bytes, size_t bytes_len)
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{
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if (bytes == NULL || bytes_len == 0)
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return;
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// TODO: implement the STDIO to the process as an input reader...
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TargetSP target = GetSelectedTarget();
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if (target.get() != NULL)
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{
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ProcessSP process_sp = target->GetProcessSP();
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if (process_sp.get() != NULL
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&& StateIsRunningState (process_sp->GetState()))
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{
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Error error;
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if (process_sp->PutSTDIN (bytes, bytes_len, error) == bytes_len)
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return;
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}
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}
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// if (bytes == NULL || bytes_len == 0)
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// return;
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WriteToDefaultReader (bytes, bytes_len);
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}
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@ -104,9 +104,7 @@ ProcessGDBRemote::ProcessGDBRemote(Target& target, Listener &listener) :
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Process (target, listener),
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m_dynamic_loader_ap (),
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m_flags (0),
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m_stdio_communication ("gdb-remote.stdio"),
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m_stdio_mutex (Mutex::eMutexTypeRecursive),
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m_stdout_data (),
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m_byte_order (eByteOrderHost),
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m_gdb_comm(),
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m_debugserver_pid (LLDB_INVALID_PROCESS_ID),
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@ -1634,23 +1632,23 @@ ProcessGDBRemote::DoSignal (int signo)
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return error;
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}
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void
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ProcessGDBRemote::STDIOReadThreadBytesReceived (void *baton, const void *src, size_t src_len)
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{
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ProcessGDBRemote *process = (ProcessGDBRemote *)baton;
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process->AppendSTDOUT(static_cast<const char *>(src), src_len);
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}
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//void
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//ProcessGDBRemote::STDIOReadThreadBytesReceived (void *baton, const void *src, size_t src_len)
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//{
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// ProcessGDBRemote *process = (ProcessGDBRemote *)baton;
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// process->AppendSTDOUT(static_cast<const char *>(src), src_len);
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//}
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void
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ProcessGDBRemote::AppendSTDOUT (const char* s, size_t len)
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{
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ProcessGDBRemoteLog::LogIf (GDBR_LOG_PROCESS, "ProcessGDBRemote::%s (<%d> %s) ...", __FUNCTION__, len, s);
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Mutex::Locker locker(m_stdio_mutex);
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m_stdout_data.append(s, len);
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// FIXME: Make a real data object for this and put it out.
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BroadcastEventIfUnique (eBroadcastBitSTDOUT);
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}
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//void
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//ProcessGDBRemote::AppendSTDOUT (const char* s, size_t len)
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//{
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// ProcessGDBRemoteLog::LogIf (GDBR_LOG_PROCESS, "ProcessGDBRemote::%s (<%d> %s) ...", __FUNCTION__, len, s);
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// Mutex::Locker locker(m_stdio_mutex);
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// m_stdout_data.append(s, len);
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//
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// // FIXME: Make a real data object for this and put it out.
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// BroadcastEventIfUnique (eBroadcastBitSTDOUT);
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//}
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Error
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if (m_debugserver_pid != LLDB_INVALID_PROCESS_ID)
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{
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if (pty.GetMasterFileDescriptor() != lldb_utility::PseudoTerminal::invalid_fd)
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{
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std::auto_ptr<ConnectionFileDescriptor> conn_ap(new ConnectionFileDescriptor (pty.ReleaseMasterFileDescriptor(), true));
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if (conn_ap.get())
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{
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m_stdio_communication.SetConnection(conn_ap.release());
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if (m_stdio_communication.IsConnected())
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{
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m_stdio_communication.SetReadThreadBytesReceivedCallback (STDIOReadThreadBytesReceived, this);
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m_stdio_communication.StartReadThread();
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}
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}
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}
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SetUpProcessInputReader (pty.ReleaseMasterFileDescriptor());
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}
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}
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else
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@ -261,11 +261,11 @@ protected:
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bool
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ProcessIDIsValid ( ) const;
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static void
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STDIOReadThreadBytesReceived (void *baton, const void *src, size_t src_len);
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// static void
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// STDIOReadThreadBytesReceived (void *baton, const void *src, size_t src_len);
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void
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AppendSTDOUT (const char* s, size_t len);
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// void
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// AppendSTDOUT (const char* s, size_t len);
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void
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Clear ( );
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std::auto_ptr<lldb_private::DynamicLoader> m_dynamic_loader_ap;
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lldb_private::Flags m_flags; // Process specific flags (see eFlags enums)
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lldb_private::Communication m_stdio_communication;
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lldb_private::Mutex m_stdio_mutex; // Multithreaded protection for stdio
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std::string m_stdout_data;
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lldb::ByteOrder m_byte_order;
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GDBRemoteCommunication m_gdb_comm;
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lldb::pid_t m_debugserver_pid;
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@ -14,7 +14,9 @@
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#include "lldb/Breakpoint/StoppointCallbackContext.h"
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#include "lldb/Breakpoint/BreakpointLocation.h"
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#include "lldb/Core/Event.h"
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#include "lldb/Core/ConnectionFileDescriptor.h"
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#include "lldb/Core/Debugger.h"
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#include "lldb/Core/InputReader.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/PluginManager.h"
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#include "lldb/Core/State.h"
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@ -85,7 +87,11 @@ Process::Process(Target &target, Listener &listener) :
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m_notifications (),
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m_persistent_vars(),
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m_listener(listener),
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m_unix_signals ()
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m_unix_signals (),
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m_process_input_reader (),
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m_stdio_communication ("lldb.process.stdio"),
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m_stdio_comm_mutex (Mutex::eMutexTypeRecursive),
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m_stdout_data ()
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{
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UpdateInstanceName();
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Error error;
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m_target_triple.Clear();
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m_abi_sp.reset();
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m_process_input_reader.reset();
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Module *exe_module = m_target.GetExecutableModule().get();
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if (exe_module)
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@ -1305,6 +1312,7 @@ Process::Attach (lldb::pid_t attach_pid)
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m_target_triple.Clear();
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m_abi_sp.reset();
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m_process_input_reader.reset();
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// Find the process and its architecture. Make sure it matches the architecture
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// of the current Target, and if not adjust it.
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{
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m_target_triple.Clear();
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m_abi_sp.reset();
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m_process_input_reader.reset();
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// Find the process and its architecture. Make sure it matches the architecture
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// of the current Target, and if not adjust it.
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DidDestroy();
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StopPrivateStateThread();
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}
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m_stdio_communication.StopReadThread();
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m_stdio_communication.Disconnect();
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if (m_process_input_reader && m_process_input_reader->IsActive())
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m_target.GetDebugger().PopInputReader (m_process_input_reader);
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if (m_process_input_reader)
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m_process_input_reader.reset();
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}
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return error;
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}
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{
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log->Printf ("\tChanging public state from: %s to %s", StateAsCString(GetState ()), StateAsCString (internal_state));
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}
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if (StateIsRunningState (internal_state))
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PushProcessInputReader ();
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else
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PopProcessInputReader ();
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Process::ProcessEventData::SetUpdateStateOnRemoval(event_sp.get());
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BroadcastEvent (event_sp);
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}
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return Host::GetArchSpecForExistingProcess (process_name);
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}
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void
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Process::AppendSTDOUT (const char * s, size_t len)
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{
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Mutex::Locker locker (m_stdio_comm_mutex);
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m_stdout_data.append (s, len);
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BroadcastEventIfUnique (eBroadcastBitSTDOUT);
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}
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void
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Process::STDIOReadThreadBytesReceived (void *baton, const void *src, size_t src_len)
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{
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Process *process = (Process *) baton;
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process->AppendSTDOUT (static_cast<const char *>(src), src_len);
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}
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size_t
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Process::ProcessInputReaderCallback (void *baton,
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InputReader &reader,
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lldb::InputReaderAction notification,
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const char *bytes,
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size_t bytes_len)
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{
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Process *process = (Process *) baton;
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switch (notification)
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{
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case eInputReaderActivate:
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break;
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case eInputReaderDeactivate:
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break;
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case eInputReaderReactivate:
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break;
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case eInputReaderGotToken:
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{
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Error error;
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process->PutSTDIN (bytes, bytes_len, error);
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}
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break;
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case eInputReaderDone:
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break;
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}
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return bytes_len;
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}
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void
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Process::ResetProcessInputReader ()
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{
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m_process_input_reader.reset();
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}
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void
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Process::SetUpProcessInputReader (int file_descriptor)
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{
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// First set up the Read Thread for reading/handling process I/O
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std::auto_ptr<ConnectionFileDescriptor> conn_ap (new ConnectionFileDescriptor (file_descriptor, true));
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if (conn_ap.get())
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{
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m_stdio_communication.SetConnection (conn_ap.release());
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if (m_stdio_communication.IsConnected())
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{
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m_stdio_communication.SetReadThreadBytesReceivedCallback (STDIOReadThreadBytesReceived, this);
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m_stdio_communication.StartReadThread();
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// Now read thread is set up, set up input reader.
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if (!m_process_input_reader.get())
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{
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m_process_input_reader.reset (new InputReader(m_target.GetDebugger()));
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Error err (m_process_input_reader->Initialize (Process::ProcessInputReaderCallback,
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this,
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eInputReaderGranularityByte,
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NULL,
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NULL,
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false));
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if (err.Fail())
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m_process_input_reader.reset();
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}
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}
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}
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}
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void
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Process::PushProcessInputReader ()
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{
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if (m_process_input_reader && !m_process_input_reader->IsActive())
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m_target.GetDebugger().PushInputReader (m_process_input_reader);
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}
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void
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Process::PopProcessInputReader ()
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{
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if (m_process_input_reader && m_process_input_reader->IsActive())
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m_target.GetDebugger().PopInputReader (m_process_input_reader);
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}
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lldb::UserSettingsControllerSP
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Process::GetSettingsController (bool finish)
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{
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