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llvm-project/lldb/source/Commands/CommandObjectLog.cpp
Jim Ingham 5a98841673 Make raw & parsed commands subclasses of CommandObject rather than having the raw version implement an 
Execute which was never going to get run and another ExecuteRawCommandString.  Took the knowledge of how
to prepare raw & parsed commands out of CommandInterpreter and put it in CommandObject where it belongs.

Also took all the cases where there were the subcommands of Multiword commands declared in the .h file for
the overall command and moved them into the .cpp file.

Made the CommandObject flags work for raw as well as parsed commands.

Made "expr" use the flags so that it requires you to be paused to run "expr".

llvm-svn: 158235
2012-06-08 21:56:10 +00:00

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//===-- CommandObjectLog.cpp ------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "CommandObjectLog.h"
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/lldb-private-log.h"
#include "lldb/Interpreter/Args.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Host/FileSpec.h"
#include "lldb/Core/Log.h"
#include "lldb/Core/Module.h"
#include "lldb/Interpreter/Options.h"
#include "lldb/Core/RegularExpression.h"
#include "lldb/Core/Stream.h"
#include "lldb/Core/StreamFile.h"
#include "lldb/Core/Timer.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Interpreter/CommandInterpreter.h"
#include "lldb/Interpreter/CommandReturnObject.h"
#include "lldb/Symbol/LineTable.h"
#include "lldb/Symbol/ObjectFile.h"
#include "lldb/Symbol/SymbolFile.h"
#include "lldb/Symbol/SymbolVendor.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/Target.h"
using namespace lldb;
using namespace lldb_private;
class CommandObjectLogEnable : public CommandObjectParsed
{
public:
//------------------------------------------------------------------
// Constructors and Destructors
//------------------------------------------------------------------
CommandObjectLogEnable(CommandInterpreter &interpreter) :
CommandObjectParsed (interpreter,
"log enable",
"Enable logging for a single log channel.",
NULL),
m_options (interpreter)
{
CommandArgumentEntry arg1;
CommandArgumentEntry arg2;
CommandArgumentData channel_arg;
CommandArgumentData category_arg;
// Define the first (and only) variant of this arg.
channel_arg.arg_type = eArgTypeLogChannel;
channel_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the argument entry.
arg1.push_back (channel_arg);
category_arg.arg_type = eArgTypeLogCategory;
category_arg.arg_repetition = eArgRepeatPlus;
arg2.push_back (category_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back (arg1);
m_arguments.push_back (arg2);
}
virtual
~CommandObjectLogEnable()
{
}
Options *
GetOptions ()
{
return &m_options;
}
// int
// HandleArgumentCompletion (Args &input,
// int &cursor_index,
// int &cursor_char_position,
// OptionElementVector &opt_element_vector,
// int match_start_point,
// int max_return_elements,
// bool &word_complete,
// StringList &matches)
// {
// std::string completion_str (input.GetArgumentAtIndex(cursor_index));
// completion_str.erase (cursor_char_position);
//
// if (cursor_index == 1)
// {
// //
// Log::AutoCompleteChannelName (completion_str.c_str(), matches);
// }
// return matches.GetSize();
// }
//
class CommandOptions : public Options
{
public:
CommandOptions (CommandInterpreter &interpreter) :
Options (interpreter),
log_file (),
log_options (0)
{
}
virtual
~CommandOptions ()
{
}
virtual Error
SetOptionValue (uint32_t option_idx, const char *option_arg)
{
Error error;
char short_option = (char) m_getopt_table[option_idx].val;
switch (short_option)
{
case 'f': log_file = option_arg; break;
case 't': log_options |= LLDB_LOG_OPTION_THREADSAFE; break;
case 'v': log_options |= LLDB_LOG_OPTION_VERBOSE; break;
case 'g': log_options |= LLDB_LOG_OPTION_DEBUG; break;
case 's': log_options |= LLDB_LOG_OPTION_PREPEND_SEQUENCE; break;
case 'T': log_options |= LLDB_LOG_OPTION_PREPEND_TIMESTAMP; break;
case 'p': log_options |= LLDB_LOG_OPTION_PREPEND_PROC_AND_THREAD;break;
case 'n': log_options |= LLDB_LOG_OPTION_PREPEND_THREAD_NAME; break;
default:
error.SetErrorStringWithFormat ("unrecognized option '%c'", short_option);
break;
}
return error;
}
void
OptionParsingStarting ()
{
log_file.clear();
log_options = 0;
}
const OptionDefinition*
GetDefinitions ()
{
return g_option_table;
}
// Options table: Required for subclasses of Options.
static OptionDefinition g_option_table[];
// Instance variables to hold the values for command options.
std::string log_file;
uint32_t log_options;
};
protected:
virtual bool
DoExecute (Args& args,
CommandReturnObject &result)
{
if (args.GetArgumentCount() < 2)
{
result.AppendErrorWithFormat("%s takes a log channel and one or more log types.\n", m_cmd_name.c_str());
}
else
{
std::string channel(args.GetArgumentAtIndex(0));
args.Shift (); // Shift off the channel
bool success = m_interpreter.GetDebugger().EnableLog (channel.c_str(),
args.GetConstArgumentVector(),
m_options.log_file.c_str(),
m_options.log_options,
result.GetErrorStream());
if (success)
result.SetStatus (eReturnStatusSuccessFinishNoResult);
else
result.SetStatus (eReturnStatusFailed);
}
return result.Succeeded();
}
CommandOptions m_options;
};
OptionDefinition
CommandObjectLogEnable::CommandOptions::g_option_table[] =
{
{ LLDB_OPT_SET_1, false, "file", 'f', required_argument, NULL, 0, eArgTypeFilename, "Set the destination file to log to."},
{ LLDB_OPT_SET_1, false, "threadsafe", 't', no_argument, NULL, 0, eArgTypeNone, "Enable thread safe logging to avoid interweaved log lines." },
{ LLDB_OPT_SET_1, false, "verbose", 'v', no_argument, NULL, 0, eArgTypeNone, "Enable verbose logging." },
{ LLDB_OPT_SET_1, false, "debug", 'g', no_argument, NULL, 0, eArgTypeNone, "Enable debug logging." },
{ LLDB_OPT_SET_1, false, "sequence", 's', no_argument, NULL, 0, eArgTypeNone, "Prepend all log lines with an increasing integer sequence id." },
{ LLDB_OPT_SET_1, false, "timestamp", 'T', no_argument, NULL, 0, eArgTypeNone, "Prepend all log lines with a timestamp." },
{ LLDB_OPT_SET_1, false, "pid-tid", 'p', no_argument, NULL, 0, eArgTypeNone, "Prepend all log lines with the process and thread ID that generates the log line." },
{ LLDB_OPT_SET_1, false, "thread-name",'n', no_argument, NULL, 0, eArgTypeNone, "Prepend all log lines with the thread name for the thread that generates the log line." },
{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL }
};
class CommandObjectLogDisable : public CommandObjectParsed
{
public:
//------------------------------------------------------------------
// Constructors and Destructors
//------------------------------------------------------------------
CommandObjectLogDisable(CommandInterpreter &interpreter) :
CommandObjectParsed (interpreter,
"log disable",
"Disable one or more log channel categories.",
NULL)
{
CommandArgumentEntry arg1;
CommandArgumentEntry arg2;
CommandArgumentData channel_arg;
CommandArgumentData category_arg;
// Define the first (and only) variant of this arg.
channel_arg.arg_type = eArgTypeLogChannel;
channel_arg.arg_repetition = eArgRepeatPlain;
// There is only one variant this argument could be; put it into the argument entry.
arg1.push_back (channel_arg);
category_arg.arg_type = eArgTypeLogCategory;
category_arg.arg_repetition = eArgRepeatPlus;
arg2.push_back (category_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back (arg1);
m_arguments.push_back (arg2);
}
virtual
~CommandObjectLogDisable()
{
}
protected:
virtual bool
DoExecute (Args& args,
CommandReturnObject &result)
{
const size_t argc = args.GetArgumentCount();
if (argc == 0)
{
result.AppendErrorWithFormat("%s takes a log channel and one or more log types.\n", m_cmd_name.c_str());
}
else
{
Log::Callbacks log_callbacks;
std::string channel(args.GetArgumentAtIndex(0));
args.Shift (); // Shift off the channel
if (Log::GetLogChannelCallbacks (channel.c_str(), log_callbacks))
{
log_callbacks.disable (args.GetConstArgumentVector(), &result.GetErrorStream());
result.SetStatus(eReturnStatusSuccessFinishNoResult);
}
else if (channel == "all")
{
Log::DisableAllLogChannels(&result.GetErrorStream());
}
else
{
LogChannelSP log_channel_sp (LogChannel::FindPlugin(channel.c_str()));
if (log_channel_sp)
{
log_channel_sp->Disable(args.GetConstArgumentVector(), &result.GetErrorStream());
result.SetStatus(eReturnStatusSuccessFinishNoResult);
}
else
result.AppendErrorWithFormat("Invalid log channel '%s'.\n", args.GetArgumentAtIndex(0));
}
}
return result.Succeeded();
}
};
class CommandObjectLogList : public CommandObjectParsed
{
public:
//------------------------------------------------------------------
// Constructors and Destructors
//------------------------------------------------------------------
CommandObjectLogList(CommandInterpreter &interpreter) :
CommandObjectParsed (interpreter,
"log list",
"List the log categories for one or more log channels. If none specified, lists them all.",
NULL)
{
CommandArgumentEntry arg;
CommandArgumentData channel_arg;
// Define the first (and only) variant of this arg.
channel_arg.arg_type = eArgTypeLogChannel;
channel_arg.arg_repetition = eArgRepeatStar;
// There is only one variant this argument could be; put it into the argument entry.
arg.push_back (channel_arg);
// Push the data for the first argument into the m_arguments vector.
m_arguments.push_back (arg);
}
virtual
~CommandObjectLogList()
{
}
protected:
virtual bool
DoExecute (Args& args,
CommandReturnObject &result)
{
const size_t argc = args.GetArgumentCount();
if (argc == 0)
{
Log::ListAllLogChannels (&result.GetOutputStream());
result.SetStatus(eReturnStatusSuccessFinishResult);
}
else
{
for (size_t i=0; i<argc; ++i)
{
Log::Callbacks log_callbacks;
std::string channel(args.GetArgumentAtIndex(i));
if (Log::GetLogChannelCallbacks (channel.c_str(), log_callbacks))
{
log_callbacks.list_categories (&result.GetOutputStream());
result.SetStatus(eReturnStatusSuccessFinishResult);
}
else if (channel == "all")
{
Log::ListAllLogChannels (&result.GetOutputStream());
result.SetStatus(eReturnStatusSuccessFinishResult);
}
else
{
LogChannelSP log_channel_sp (LogChannel::FindPlugin(channel.c_str()));
if (log_channel_sp)
{
log_channel_sp->ListCategories(&result.GetOutputStream());
result.SetStatus(eReturnStatusSuccessFinishNoResult);
}
else
result.AppendErrorWithFormat("Invalid log channel '%s'.\n", args.GetArgumentAtIndex(0));
}
}
}
return result.Succeeded();
}
};
class CommandObjectLogTimer : public CommandObjectParsed
{
public:
//------------------------------------------------------------------
// Constructors and Destructors
//------------------------------------------------------------------
CommandObjectLogTimer(CommandInterpreter &interpreter) :
CommandObjectParsed (interpreter,
"log timers",
"Enable, disable, dump, and reset LLDB internal performance timers.",
"log timers < enable <depth> | disable | dump | increment <bool> | reset >")
{
}
virtual
~CommandObjectLogTimer()
{
}
protected:
virtual bool
DoExecute (Args& args,
CommandReturnObject &result)
{
const size_t argc = args.GetArgumentCount();
result.SetStatus(eReturnStatusFailed);
if (argc == 1)
{
const char *sub_command = args.GetArgumentAtIndex(0);
if (strcasecmp(sub_command, "enable") == 0)
{
Timer::SetDisplayDepth (UINT32_MAX);
result.SetStatus(eReturnStatusSuccessFinishNoResult);
}
else if (strcasecmp(sub_command, "disable") == 0)
{
Timer::DumpCategoryTimes (&result.GetOutputStream());
Timer::SetDisplayDepth (0);
result.SetStatus(eReturnStatusSuccessFinishResult);
}
else if (strcasecmp(sub_command, "dump") == 0)
{
Timer::DumpCategoryTimes (&result.GetOutputStream());
result.SetStatus(eReturnStatusSuccessFinishResult);
}
else if (strcasecmp(sub_command, "reset") == 0)
{
Timer::ResetCategoryTimes ();
result.SetStatus(eReturnStatusSuccessFinishResult);
}
}
else if (argc == 2)
{
const char *sub_command = args.GetArgumentAtIndex(0);
if (strcasecmp(sub_command, "enable") == 0)
{
bool success;
uint32_t depth = Args::StringToUInt32(args.GetArgumentAtIndex(1), 0, 0, &success);
if (success)
{
Timer::SetDisplayDepth (depth);
result.SetStatus(eReturnStatusSuccessFinishNoResult);
}
else
result.AppendError("Could not convert enable depth to an unsigned integer.");
}
if (strcasecmp(sub_command, "increment") == 0)
{
bool success;
bool increment = Args::StringToBoolean(args.GetArgumentAtIndex(1), false, &success);
if (success)
{
Timer::SetQuiet (!increment);
result.SetStatus(eReturnStatusSuccessFinishNoResult);
}
else
result.AppendError("Could not convert increment value to boolean.");
}
}
if (!result.Succeeded())
{
result.AppendError("Missing subcommand");
result.AppendErrorWithFormat("Usage: %s\n", m_cmd_syntax.c_str());
}
return result.Succeeded();
}
};
//----------------------------------------------------------------------
// CommandObjectLog constructor
//----------------------------------------------------------------------
CommandObjectLog::CommandObjectLog(CommandInterpreter &interpreter) :
CommandObjectMultiword (interpreter,
"log",
"A set of commands for operating on logs.",
"log <command> [<command-options>]")
{
LoadSubCommand ("enable", CommandObjectSP (new CommandObjectLogEnable (interpreter)));
LoadSubCommand ("disable", CommandObjectSP (new CommandObjectLogDisable (interpreter)));
LoadSubCommand ("list", CommandObjectSP (new CommandObjectLogList (interpreter)));
LoadSubCommand ("timers", CommandObjectSP (new CommandObjectLogTimer (interpreter)));
}
//----------------------------------------------------------------------
// Destructor
//----------------------------------------------------------------------
CommandObjectLog::~CommandObjectLog()
{
}
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