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fixed problem with wxKill(SIGNONE) returning error for running process

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34685 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2005-06-16 23:48:50 +00:00
parent 5f7348ce62
commit a45fb5b44c
1 changed files with 18 additions and 35 deletions
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53
src/msw/utils.cpp
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@ -34,6 +34,7 @@
#include "wx/apptrait.h"
#include "wx/dynlib.h"
#include "wx/dynload.h"
#include "wx/scopeguard.h"
#include "wx/confbase.h" // for wxExpandEnvVars()
@ -685,19 +686,19 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)
{
if ( krc )
{
if ( ::GetLastError() == ERROR_ACCESS_DENIED )
{
*krc = wxKILL_ACCESS_DENIED;
}
else
{
*krc = wxKILL_NO_PROCESS;
}
// recognize wxKILL_ACCESS_DENIED as special because this doesn't
// mean that the process doesn't exist and this is important for
// wxProcess::Exists()
*krc = ::GetLastError() == ERROR_ACCESS_DENIED
? wxKILL_ACCESS_DENIED
: wxKILL_NO_PROCESS;
}
return -1;
}
wxON_BLOCK_EXIT1(::CloseHandle, hProcess);
bool ok = true;
switch ( sig )
{
@ -720,7 +721,9 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)
case wxSIGNONE:
// do nothing, we just want to test for process existence
break;
if ( krc )
*krc = wxKILL_OK;
return 0;
default:
// any other signal means "terminate"
@ -757,9 +760,7 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)
else // no windows for this PID
{
if ( krc )
{
*krc = wxKILL_ERROR;
}
ok = false;
}
@ -767,8 +768,7 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)
}
// the return code
DWORD rc;
DWORD rc wxDUMMY_INITIALIZE(0);
if ( ok )
{
// as we wait for a short time, we can use just WaitForSingleObject()
@ -793,40 +793,23 @@ int wxKill(long pid, wxSignal sig, wxKillError *krc, int flags)
case WAIT_TIMEOUT:
if ( krc )
{
*krc = wxKILL_ERROR;
}
rc = STILL_ACTIVE;
break;
}
}
else // !ok
{
// just to suppress the warnings about uninitialized variable
rc = 0;
}
::CloseHandle(hProcess);
// the return code is the same as from Unix kill(): 0 if killed
// successfully or -1 on error
//
// be careful to interpret rc correctly: for wxSIGNONE we return success if
// the process exists, for all the other sig values -- if it doesn't
if ( ok &&
((sig == wxSIGNONE) == (rc == STILL_ACTIVE)) )
{
if ( krc )
{
*krc = wxKILL_OK;
}
if ( !ok || rc == STILL_ACTIVE )
return -1;
return 0;
}
if ( krc )
*krc = wxKILL_OK;
// error
return -1;
return 0;
}
HANDLE (WINAPI *lpfCreateToolhelp32Snapshot)(DWORD,DWORD) ;