Mercurial > vim
view src/wsdebug.c @ 13491:cc7dc249e371 v8.0.1619
patch 8.0.1619: Win32 GUI: crash when winpty is not installed
commit https://github.com/vim/vim/commit/81c3c89a28859de3aa167c53355f374394ada093
Author: Bram Moolenaar <Bram@vim.org>
Date: Tue Mar 20 11:41:44 2018 +0100
patch 8.0.1619: Win32 GUI: crash when winpty is not installed
Problem: Win32 GUI: crash when winpty is not installed and trying to use
:shell in a terminal window.
Solution: Check for NULL return form term_start(). (Yasuhiro Matsumoto,
closes #2727)
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Tue, 20 Mar 2018 11:45:06 +0100 |
parents | 7a4fb555c83a |
children |
line wrap: on
line source
/* vi:set ts=8 sw=8 noet: * * VIM - Vi IMproved by Bram Moolenaar * Visual Workshop integration by Gordon Prieur * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ /* * WorkShop Debugging Tools. What are these tools and why are they important? * There are two main tools here. The first tool is a tool for delaying or * stopping gvim during startup. The second tool is a protocol log tool. * * The startup delay tool is called wsdebug_wait(). This is very important for * debugging startup problems because gvim will be started automatically from * workshop and cannot be run directly from a debugger. The only way to debug * a gvim started by workshop is by attaching a debugger to it. Without this * tool all starup code will have completed before you can get the pid and * attach. * * The second tool is a protocol log tool. The workshop editor server and gvim * pass information back and forth during a workshop session. Sometimes it is * very important to peruse this conversation in order to understand what is * happening. The wsdebug_log_init() call sets up this protocol log tool and * wsdebug() and wstrace() calls output the information to the log. * * This code must have WSDEBUG defined for it to be compiled into vim/gvim. */ #ifdef WSDEBUG #include "vim.h" FILE *ws_debug = NULL; u_int ws_dlevel = 0; /* ws_debug verbosity level */ void wsdebug(char *, ...); void wstrace(char *, ...); static int lookup(char *); #ifdef USE_WS_ERRORHANDLER static int errorHandler(Display *, XErrorEvent *); #endif /* * wsdebug_wait - This function can be used to delay or stop execution of vim. * It's normally used to delay startup while attaching a * debugger to a running process. Since workshop starts gvim * from a background process this is the only way to debug * startup problems. */ void wsdebug_wait( u_int wait_flags, /* tells what to do */ char *wait_var, /* wait environment variable */ u_int wait_secs) /* how many seconds to wait */ { init_homedir(); /* not inited yet */ #ifdef USE_WDDUMP WDDump(0, 0, 0); #endif /* for debugging purposes only */ if (wait_flags & WT_ENV && wait_var && getenv(wait_var) != NULL) { sleep(atoi(getenv(wait_var))); } else if (wait_flags & WT_WAIT && lookup("~/.gvimwait")) { sleep(wait_secs > 0 && wait_secs < 120 ? wait_secs : 20); } else if (wait_flags & WT_STOP && lookup("~/.gvimstop")) { int w = 1; while (w) { ; } } } /* end wsdebug_wait */ void wsdebug_log_init( char *log_var, /* env var with log file */ char *level_var) /* env var with ws_debug level */ { char *file; /* possible ws_debug output file */ char *cp; /* ws_dlevel pointer */ if (log_var && (file = getenv(log_var)) != NULL) { char buf[BUFSIZ]; vim_snprintf(buf, sizeof(buf), "date > %s", file); system(buf); ws_debug = fopen(file, "a"); if (level_var && (cp = getenv(level_var)) != NULL) { ws_dlevel = strtoul(cp, NULL, 0); } else { ws_dlevel = WS_TRACE; /* default level */ } #ifdef USE_WS_ERRORHANDLER XSetErrorHandler(errorHandler); #endif } } /* end wsdebug_log_init */ void wstrace( char *fmt, ...) { va_list ap; if (ws_debug!= NULL && (ws_dlevel & (WS_TRACE | WS_TRACE_VERBOSE))) { va_start(ap, fmt); vfprintf(ws_debug, fmt, ap); va_end(ap); fflush(ws_debug); } } /* end wstrace */ void wsdebug( char *fmt, ...) { va_list ap; if (ws_debug != NULL) { va_start(ap, fmt); vfprintf(ws_debug, fmt, ap); va_end(ap); fflush(ws_debug); } } /* end wsdebug */ static int lookup( char *file) { char buf[BUFSIZ]; expand_env((char_u *) file, (char_u *) buf, BUFSIZ); return (access(buf, F_OK) == 0); } /* end lookup */ #ifdef USE_WS_ERRORHANDLER static int errorHandler( Display *dpy, XErrorEvent *err) { char msg[256]; char buf[256]; XGetErrorText(dpy, err->error_code, msg, sizeof(msg)); wsdebug("\n\nWSDEBUG Vim: X Error of failed request: %s\n", msg); sprintf(buf, "%d", err->request_code); XGetErrorDatabaseText(dpy, "XRequest", buf, "Unknown", msg, sizeof(msg)); wsdebug("\tMajor opcode of failed request: %d (%s)\n", err->request_code, msg); if (err->request_code > 128) { wsdebug("\tMinor opcode of failed request: %d\n", err->minor_code); } return 0; } #endif #endif /* WSDEBUG */