xglcomp: src/xerr.cc annotate

xglcomp

better error message in xerr_debug

author	John Tsiombikas <nuclear@member.fsf.org>
date	Wed, 03 Feb 2016 03:55:52 +0200
parents	245dd960f0b3
children	cb636a23f4f2

rev	line source
nuclear@9	1 #include <stack>
nuclear@9	2 #include "xerr.h"
nuclear@9	3 #include "logger.h"
nuclear@9	4
nuclear@9	5 static std::stack<xerr_handler_type> func_stack;
nuclear@9	6
nuclear@9	7 void push_xerr_handler(xerr_handler_type func)
nuclear@9	8 {
nuclear@9	9 func_stack.push(func);
nuclear@9	10 XSetErrorHandler(func);
nuclear@9	11 }
nuclear@9	12
nuclear@9	13 void pop_xerr_handler()
nuclear@9	14 {
nuclear@9	15 if(func_stack.empty()) {
nuclear@9	16 log_error("attempt to pop_xerr_handler with an empty stack\n");
nuclear@9	17 return;
nuclear@9	18 }
nuclear@9	19 xerr_handler_type prev = func_stack.top();
nuclear@9	20 func_stack.pop();
nuclear@9	21 XSetErrorHandler(prev);
nuclear@9	22 }
nuclear@9	23
nuclear@9	24 int xerr_debug(Display dpy, XErrorEvent err)
nuclear@9	25 {
nuclear@9	26 char errstr[512];
nuclear@9	27 XGetErrorText(dpy, err->error_code, errstr, sizeof errstr);
nuclear@10	28 printf("X error caught: \n%s (code: %u)\n", errstr, err->error_code);
nuclear@10	29 printf(" Failed request number: %lu (%u,%u)\n", err->serial,
nuclear@10	30 (unsigned int)err->request_code, (unsigned int)err->minor_code);
nuclear@10	31 printf(" Resource: %lx\n", err->resourceid);
nuclear@9	32 return 0;
nuclear@9	33 }
nuclear@9	34
nuclear@9	35 int xerr_ignore(Display dpy, XErrorEvent err)
nuclear@9	36 {
nuclear@9	37 return 0;
nuclear@9	38 }