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Ignore BadWindow errors caused by faulty __NET_ACTIVE_WINDOW events

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This commit is contained in:
Carl Klemm
2020-06-15 23:43:56 +02:00
parent d94633b7b4
commit e1253286e4
2 changed files with 26 additions and 3 deletions
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27
xinstance.cpp
View File

@ -124,6 +124,7 @@ void XInstance::flush()
pid_t XInstance::getPid(Window wid)
{
defaultHandler = XSetErrorHandler(ignoreErrorHandler);
XTextProperty xWidHostNameTextProperty;
bool ret;
ret = XGetTextProperty(display, wid, &xWidHostNameTextProperty, atoms.wmClientMachine);
@ -132,7 +133,11 @@ pid_t XInstance::getPid(Window wid)
char errorString[1024];
XGetErrorText(display, ret, errorString, 1024);
debug("XGetWMClientMachine failed! " + std::string(errorString));
if(!ignoreClientMachine) return -1;
if(!ignoreClientMachine)
{
XSetErrorHandler(defaultHandler);
return -1;
}
}
char** xWidHostNameStringList = nullptr;
int nStrings;
@ -142,13 +147,21 @@ pid_t XInstance::getPid(Window wid)
char errorString[1024];
XGetErrorText(display, ret, errorString, 1024);
debug("XTextPropertyToStringList failed! " + std::string(errorString));
if(!ignoreClientMachine) return -1;
if(!ignoreClientMachine)
{
XSetErrorHandler(defaultHandler);
return -1;
}
}
char hostName[HOST_NAME_MAX+1]={0};
if(gethostname(hostName, HOST_NAME_MAX) != 0)
{
debug("Can't get host name");
if(!ignoreClientMachine) return -1;
if(!ignoreClientMachine)
{
XSetErrorHandler(defaultHandler);
return -1;
}
}
pid_t pid = -1;
if(ignoreClientMachine || strcmp(hostName, xWidHostNameStringList[0]) == 0 )
@ -165,9 +178,17 @@ pid_t XInstance::getPid(Window wid)
debug("Window "+std::to_string(wid)+" is a remote window");
}
if(xWidHostNameStringList) XFreeStringList(xWidHostNameStringList);
XSetErrorHandler(defaultHandler);
return pid;
}
int XInstance::ignoreErrorHandler(Display* display, XErrorEvent* xerror)
{
std::cerr<<"Ignoring: error code"<<xerror->error_code<<" request code "<<xerror->request_code<<'\n'
<<"this error most likely occured because of a bug in your WM\n";
return 0;
}
XInstance::~XInstance()
{
if(display) XCloseDisplay(display);

2
xinstance.h
View File

@ -34,6 +34,7 @@ class XInstance
public:
inline static XErrorHandler defaultHandler;
static constexpr unsigned long MAX_BYTES = 1048576;
inline static bool ignoreClientMachine = false;
@ -46,6 +47,7 @@ private:
unsigned long readProparty(Window wid, Atom atom, unsigned char** prop, int* format);
Atom getAtom(const std::string& atomName);
static int ignoreErrorHandler(Display* display, XErrorEvent* xerror);
public: