summaryrefslogtreecommitdiff
path: root/src/nbdebug.c
blob: c79081bea74fa06c9a5ca43fa188b1ea5d5cb527 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
/* 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.
 */

/*
 * NetBeans 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 nbdebug_wait(). This is very important for
 * debugging startup problems because gvim will be started automatically from
 * netbeans and cannot be run directly from a debugger. The only way to debug
 * a gvim started by netbeans is by attaching a debugger to it. Without this
 * tool all startup code will have completed before you can get the pid and
 * attach.
 *
 * The second tool is a log tool.
 *
 * This code must have NBDEBUG defined for it to be compiled into vim/gvim.
 */

#ifdef NBDEBUG

#include "vim.h"

FILE		*nb_debug = NULL;
u_int		 nb_dlevel = 0;		// nb_debug verbosity level

void		 nbdb(char *, ...) ATTRIBUTE_FORMAT_PRINTF(1, 2);

static int	 lookup(char *);
#ifdef USE_NB_ERRORHANDLER
static int	 errorHandler(Display *, XErrorEvent *);
#endif

/*
 * nbdebug_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 NetBeans starts gvim
 *		    from a background process this is the only way to debug
 *		    startup problems.
 */
	void
nbdebug_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) {
			;
		}
	}
}

	void
nbdebug_log_init(
	char		*log_var,	// env var with log file
	char		*level_var)	// env var with nb_debug level
{
	char		*file;		// possible nb_debug output file
	char		*cp;		// nb_dlevel pointer

	if (log_var && (file = getenv(log_var)) != NULL)
	{
		time_t now;

		nb_debug = fopen(file, "a");
		time(&now);
		fprintf(nb_debug, "%s", get_ctime(now, TRUE));
		if (level_var && (cp = getenv(level_var)) != NULL) {
			nb_dlevel = strtoul(cp, NULL, 0);
		} else {
			nb_dlevel = NB_TRACE;	// default level
		}
#ifdef USE_NB_ERRORHANDLER
		XSetErrorHandler(errorHandler);
#endif
	}

}

	void
nbdbg(char *fmt, ...)
{
	va_list		 ap;

	if (nb_debug != NULL && nb_dlevel & NB_TRACE) {
		va_start(ap, fmt);
		vfprintf(nb_debug, fmt, ap);
		va_end(ap);
		fflush(nb_debug);
	}

}

	static int
lookup(char *file)
{
	char		 buf[BUFSIZ];

	expand_env((char_u *) file, (char_u *) buf, BUFSIZ);
	return
#ifndef FEAT_GUI_MSWIN
		(access(buf, F_OK) == 0);
#else
		(access(buf, 0) == 0);
#endif

}

#ifdef USE_NB_ERRORHANDLER
	static int
errorHandler(
	Display		*dpy,
	XErrorEvent	*err)
{
	char		 msg[256];
	char		 buf[256];

	XGetErrorText(dpy, err->error_code, msg, sizeof(msg));
	nbdbg("\n\nNBDEBUG Vim: X Error of failed request: %s\n", msg);

	sprintf(buf, "%d", err->request_code);
	XGetErrorDatabaseText(dpy,
	    "XRequest", buf, "Unknown", msg, sizeof(msg));
	nbdbg("\tMajor opcode of failed request: %d (%s)\n",
	    err->request_code, msg);
	if (err->request_code > 128) {
		nbdbg("\tMinor opcode of failed request: %d\n",
		    err->minor_code);
	}

	return 0;
}
#endif


#endif // NBDEBUG