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/**
* @file error.c
* @author Joe Wingbermuehle
* @date 2004-2006
*
* @brief Error handling functions.
*
*/
#include "jwm.h"
#include "error.h"
#include "main.h"
/** Log a fatal error and exit. */
void FatalError(const char *str, ...) {
va_list ap;
va_start(ap, str);
Assert(str);
fprintf(stderr, "JWM: error: ");
vfprintf(stderr, str, ap);
fprintf(stderr, "\n");
va_end(ap);
exit(1);
}
/** Log a warning. */
void Warning(const char *str, ...) {
va_list ap;
va_start(ap, str);
Assert(str);
WarningVA(NULL, str, ap);
va_end(ap);
}
/** Log a warning. */
void WarningVA(const char *part, const char *str, va_list ap) {
Assert(str);
fprintf(stderr, "JWM: warning: ");
if(part) {
fprintf(stderr, "%s: ", part);
}
vfprintf(stderr, str, ap);
fprintf(stderr, "\n");
}
/** Callback to handle errors from Xlib.
* Note that if debug output is directed to an X terminal, emitting too
* much output can cause a dead lock (this happens on HP-UX). Therefore
* ShowCheckpoint isn't used by default.
*/
int ErrorHandler(Display *d, XErrorEvent *e) {
#ifdef DEBUG
char buffer[64];
char code[32];
#endif
if(initializing) {
if(e->request_code == X_ChangeWindowAttributes
&& e->error_code == BadAccess) {
FatalError("display is already managed");
}
}
#ifdef DEBUG
if(!e) {
fprintf(stderr, "XError: [no information]\n");
return 0;
}
XGetErrorText(display, e->error_code, buffer, sizeof(buffer));
Debug("XError: %s", buffer);
snprintf(code, sizeof(code), "%d", e->request_code);
XGetErrorDatabaseText(display, "XRequest", code, "?",
buffer, sizeof(buffer));
Debug(" Request Code: %d (%s)", e->request_code, buffer);
Debug(" Minor Code: %d", e->minor_code);
Debug(" Resource ID: 0x%lx", (unsigned long)e->resourceid);
Debug(" Error Serial: %lu", (unsigned long)e->serial);
#if 0
ShowCheckpoint();
#endif
#endif
return 0;
}
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