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OCC22256 Add mechanism based on malloc/free callback for debugging memory problems

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This commit is contained in:
MSV,AGV
2011-04-28 15:52:39 +00:00
committed by bugmaster
parent ed48237999
commit 7af17f1e1a
4 changed files with 828 additions and 0 deletions
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129
src/Draw/Draw_BasicCommands.cxx
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@@ -57,6 +57,7 @@ static clock_t MDTV_CPU_CURRENT; // cpu time already used at last
#endif
#include <Draw_Chronometer.hxx>
#include <OSD_MAllocHook.hxx>
#if defined (__hpux) || defined ( HPUX )
#define RLIM_INFINITY 0x7fffffff
@@ -249,6 +250,131 @@ static Standard_Integer cpulimit(Draw_Interpretor& di, Standard_Integer n, const
return 0;
}
//=======================================================================
//function : mallochook
//purpose :
//=======================================================================
static Standard_Integer mallochook(Draw_Interpretor& di, Standard_Integer n,
const char** a)
{
if (n < 2)
{
di << "\
usage: mallochook cmd\n\
where cmd is one of:\n\
set [<op>] - set callback to malloc/free; op is one of the following:\n\
0 - set callback to NULL,\n\
1 - set callback OSD_MAllocHook::CollectBySize (default)\n\
2 - set callback OSD_MAllocHook::LogFileHandler\n\
reset - reset the CollectBySize handler\n\
report1 [<outfile>]\n\
- write report from CollectBySize handler in <outfile>\n\
open [<logfile>]\n\
- open file for writing the log with LogFileHandler\n\
close - close the log file with LogFileHandler\n\
report2 [<flag>] [<logfile>] [<outfile>]\n\
- scan <logfile> written with LogFileHandler\n\
and make synthesized report in <outfile>; <flag> can be:\n\
0 - simple stats by sizes (default),\n\
1 - with alive allocation numbers\n\
By default <logfile> is \"mem-log.txt\", <outfile> is \"mem-stat.txt\""
<< "\n";
return 0;
}
if (strcmp(a[1], "set") == 0)
{
int aType = (n > 2 ? atoi(a[2]) : 1);
if (aType < 0 || aType > 2)
{
di << "unknown op of the command set" << "\n";
return 1;
}
else if (aType == 0)
{
OSD_MAllocHook::SetCallback(NULL);
di << "callback is unset" << "\n";
}
else if (aType == 1)
{
OSD_MAllocHook::SetCallback(OSD_MAllocHook::GetCollectBySize());
di << "callback is set to CollectBySize" << "\n";
}
else //if (aType == 2)
{
OSD_MAllocHook::SetCallback(OSD_MAllocHook::GetLogFileHandler());
di << "callback is set to LogFileHandler" << "\n";
}
}
else if (strcmp(a[1], "reset") == 0)
{
OSD_MAllocHook::GetCollectBySize()->Reset();
di << "CollectBySize handler is reset" << "\n";
}
else if (strcmp(a[1], "open") == 0)
{
const char* aFileName = (n > 2 ? a[2] : "mem-log.txt");
if (!OSD_MAllocHook::GetLogFileHandler()->Open(aFileName))
{
di << "cannot create file " << aFileName << " for writing" << "\n";
return 1;
}
di << "log file " << aFileName << " is opened for writing" << "\n";
}
else if (strcmp(a[1], "close") == 0)
{
OSD_MAllocHook::GetLogFileHandler()->Close();
di << "log file is closed" << "\n";
}
else if (strcmp(a[1], "report1") == 0)
{
const char* aOutFile = "mem-stat.txt";
if (n > 2)
aOutFile = a[2];
if (OSD_MAllocHook::GetCollectBySize()->MakeReport(aOutFile))
{
di << "report " << aOutFile << " has been created" << "\n";
}
else
{
di << "cannot create report " << aOutFile << "\n";
return 1;
}
}
else if (strcmp(a[1], "report2") == 0)
{
Standard_Boolean includeAlive = Standard_False;
const char* aLogFile = "mem-log.txt";
const char* aOutFile = "mem-stat.txt";
if (n > 2)
{
includeAlive = (atoi(a[2]) != 0);
if (n > 3)
{
aLogFile = a[3];
if (n > 4)
aOutFile = a[4];
}
}
if (OSD_MAllocHook::LogFileHandler::MakeReport(aLogFile, aOutFile, includeAlive))
{
di << "report " << aOutFile << " has been created" << "\n";
}
else
{
di << "cannot create report " << aOutFile << " from the log file "
<< aLogFile << "\n";
return 1;
}
}
else
{
di << "unrecognized command " << a[1] << "\n";
return 1;
}
return 0;
}
void Draw::BasicCommands(Draw_Interpretor& theCommands)
{
@@ -270,4 +396,7 @@ void Draw::BasicCommands(Draw_Interpretor& theCommands)
__FILE__,chronom,g);
theCommands.Add("dchrono","dchrono [ name start/stop/reset/show]",
__FILE__,dchronom,g);
theCommands.Add("mallochook",
"debug memory allocation/deallocation, w/o args for help",
__FILE__, mallochook, g);
}