dfhack/plugins/devel/memview.cpp

224 lines
5.6 KiB
C++

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#include "Core.h"
#include "Console.h"
#include "PluginManager.h"
#include "MemAccess.h"
#include "MiscUtils.h"
#include <tinythread.h> //not sure if correct
#include <string>
#include <vector>
#include <sstream>
#include "memutils.h"
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using std::vector;
using std::string;
using namespace DFHack;
uint64_t timeLast=0;
static tthread::mutex* mymutex=0;
DFHACK_PLUGIN_IS_ENABLED(is_enabled);
struct memory_data
{
void * addr;
size_t len;
size_t refresh;
int state;
uint8_t *buf,*lbuf;
vector<t_memrange> ranges;
}memdata;
enum HEXVIEW_STATES
{
STATE_OFF,STATE_ON
};
command_result memview (color_ostream &out, vector <string> & parameters);
DFHACK_PLUGIN("memview");
DFhackCExport command_result plugin_init (color_ostream &out, std::vector <PluginCommand> &commands)
{
commands.push_back(PluginCommand("memview","Shows DF memory in real time.",memview,false,"Shows memory in real time.\nParams: adrr length refresh_rate. If addr==0 then stop viewing."));
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memdata.state=STATE_OFF;
mymutex=new tthread::mutex;
return CR_OK;
}
size_t convert(const std::string& p,bool ishex=false)
{
size_t ret;
std::stringstream conv;
if(ishex)
conv<<std::hex;
conv<<p;
conv>>ret;
return ret;
}
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bool isAddr(void *trg, vector<t_memrange> &ranges)
{
for (auto &r : ranges)
if (r.isInRange(trg))
return true;
return false;
}
bool isAddrAt(uintptr_t *trg, vector<t_memrange> &ranges)
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{
if(trg[0]%4==0)
for(size_t i=0;i<ranges.size();i++)
if(ranges[i].isInRange((void *)trg[0]))
return true;
return false;
}
void outputHex(uint8_t *buf,uint8_t *lbuf,size_t len,size_t start,color_ostream &con,vector<t_memrange> & ranges)
{
const size_t page_size=16;
for(size_t i=0;i<len;i+=page_size)
{
//con.gotoxy(1,i/page_size+1);
con.print("0x%08zX ",i+start);
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for(size_t j=0;(j<page_size) && (i+j<len);j++)
{
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if(j%sizeof(void*)==0)
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{
con.reset_color();
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if(isAddrAt((uintptr_t *)(buf+j+i),ranges))
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con.color(COLOR_LIGHTRED); //coloring in the middle does not work
//TODO make something better?
}
if(lbuf[j+i]!=buf[j+i])
con.print("*%02X",buf[j+i]); //if modfied show a star
else
con.print(" %02X",buf[j+i]);
}
con.reset_color();
con.print(" | ");
for(size_t j=0;(j<page_size) && (i+j<len);j++)
if((buf[j+i]>31)&&(buf[j+i]<128)) //only printable ascii
con.print("%c",buf[j+i]);
else
con.print(".");
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con.print("\n");
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}
con.print("\n");
}
void Deinit()
{
if(memdata.state==STATE_ON)
{
is_enabled = false;
memdata.state=STATE_OFF;
delete [] memdata.buf;
delete [] memdata.lbuf;
}
}
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size_t detect_size(void *addr) {
size_t *size = (size_t*)((char*)addr - 16);
int32_t *tag = (int32_t*)((char*)addr - 8);
if (isAddr(size, memdata.ranges) && *tag == 0x11223344) {
return *size;
}
// default
return 20 * 16;
}
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DFhackCExport command_result plugin_onupdate (color_ostream &out)
{
mymutex->lock();
if(memdata.state==STATE_OFF)
{
mymutex->unlock();
return CR_OK;
}
//Console &con=out;
uint64_t time2 = GetTimeMs64();
uint64_t delta = time2-timeLast;
if(memdata.refresh!=0)
if(delta<memdata.refresh)
{
mymutex->unlock();
return CR_OK;
}
timeLast = time2;
Core::getInstance().p->read(memdata.addr,memdata.len,memdata.buf);
outputHex(memdata.buf,memdata.lbuf,memdata.len,(size_t)memdata.addr,out,memdata.ranges);
memcpy(memdata.lbuf, memdata.buf, memdata.len);
if(memdata.refresh==0)
Deinit();
mymutex->unlock();
return CR_OK;
}
command_result memview (color_ostream &out, vector <string> & parameters)
{
mymutex->lock();
Core::getInstance().p->getMemRanges(memdata.ranges);
if (parameters.empty())
{
memdata.addr = 0;
}
else if (toLower(parameters[0].substr(0, 2)) == "0x")
{
memdata.addr = (void *)convert(parameters[0],true);
}
else
{
memdata.addr = memutils::lua_expr_to_addr(parameters[0].c_str());
}
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if(memdata.addr==0)
{
Deinit();
memdata.state=STATE_OFF;
is_enabled = false;
mymutex->unlock();
return CR_OK;
}
else
{
Deinit();
bool isValid=false;
for(size_t i=0;i<memdata.ranges.size();i++)
if(memdata.ranges[i].isInRange(memdata.addr))
isValid=true;
if(!isValid)
{
out.printerr("Invalid address: %p\n",memdata.addr);
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mymutex->unlock();
return CR_OK;
}
is_enabled = true;
memdata.state=STATE_ON;
}
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if (vector_get(parameters, 1, string("a")).substr(0, 1) == "a")
memdata.len = detect_size(memdata.addr);
else if (parameters.size()>1)
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memdata.len=convert(parameters[1]);
else
memdata.len=20*16;
if(parameters.size()>2)
memdata.refresh=convert(parameters[2]);
else
memdata.refresh=0;
memdata.buf=new uint8_t[memdata.len];
memdata.lbuf=new uint8_t[memdata.len];
Core::getInstance().p->getMemRanges(memdata.ranges);
mymutex->unlock();
return CR_OK;
}
DFhackCExport command_result plugin_shutdown (color_ostream &out)
{
mymutex->lock();
Deinit();
delete mymutex;
mymutex->unlock();
return CR_OK;
}