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Fixed the issue that Rainmeter crashes if a invalid format parameter is specified in MeasureTime/MeasureUptime.

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This commit is contained in:
spx
2010-08-07 19:03:58 +00:00
parent 6f919cfa3f
commit 701178766d
3 changed files with 51 additions and 4 deletions
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43
Library/MeasureTime.cpp
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@@ -22,6 +22,13 @@
#include "MeasureTime.h"
#include "Rainmeter.h"
#include <time.h>
#include <errno.h>
#include <crtdbg.h>
void MeasureTime_CRTInvalidParameterHandler(const wchar_t* expression, const wchar_t* function, const wchar_t* file, unsigned int line, uintptr_t pReserved)
{
// Do nothing.
}
int GetYearDay(int year, int month, int day)
{
@@ -71,6 +78,32 @@ CMeasureTime::~CMeasureTime()
{
}
/*
** TimeToString
**
** Converts given time to string.
** This function is a wrapper function for wcsftime.
**
*/
void CMeasureTime::TimeToString(WCHAR* buf, size_t bufLen, const WCHAR* format, const struct tm* time)
{
if (bufLen > 0)
{
_invalid_parameter_handler oldHandler = _set_invalid_parameter_handler(MeasureTime_CRTInvalidParameterHandler);
_CrtSetReportMode(_CRT_ASSERT, 0);
errno = 0;
wcsftime(buf, bufLen, m_Format.c_str(), time);
if (errno == EINVAL)
{
DebugLog(L"Time: Invalid Format: Measure=[%s], Format=\"%s\"", m_Name.c_str(), format);
buf[0] = 0;
}
_set_invalid_parameter_handler(oldHandler);
}
}
/*
** Update
**
@@ -99,6 +132,8 @@ bool CMeasureTime::Update()
SYSTEMTIME sysToday;
FILETIME ftToday;
tmpSz[0] = 0;
ftToday.dwHighDateTime = m_Time.HighPart;
ftToday.dwLowDateTime = m_Time.LowPart;
@@ -125,7 +160,7 @@ bool CMeasureTime::Update()
today.tm_yday = GetYearDay(sysToday.wYear, sysToday.wMonth, sysToday.wDay);
today.tm_year = sysToday.wYear - 1900;
wcsftime(tmpSz, MAX_LINE_LENGTH, m_Format.c_str(), &today);
TimeToString(tmpSz, MAX_LINE_LENGTH, m_Format.c_str(), &today);
}
m_Value = wcstod(tmpSz, NULL);
@@ -146,6 +181,8 @@ const WCHAR* CMeasureTime::GetStringValue(bool autoScale, double scale, int deci
static WCHAR tmpSz[MAX_LINE_LENGTH];
struct tm today;
tmpSz[0] = 0;
SYSTEMTIME sysToday;
FILETIME ftToday;
ftToday.dwHighDateTime = m_Time.HighPart;
@@ -176,12 +213,12 @@ const WCHAR* CMeasureTime::GetStringValue(bool autoScale, double scale, int deci
}
else
{
wcsftime(tmpSz, MAX_LINE_LENGTH, m_Format.c_str(), &today);
TimeToString(tmpSz, MAX_LINE_LENGTH, m_Format.c_str(), &today);
}
}
else
{
wcsftime(tmpSz, MAX_LINE_LENGTH, L"%H:%M:%S", &today);
TimeToString(tmpSz, MAX_LINE_LENGTH, L"%H:%M:%S", &today);
}
return CheckSubstitute(tmpSz);