summaryrefslogtreecommitdiff
path: root/source4/lib/appweb/mpr/miniMpr.c
blob: 381815eb231a9c83cdabdc73def1d6c7bbf3bcc4 (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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
/*
 *	@file 	miniMpr.cpp
 *	@brief 	Mini Mbedthis Portable Runtime (MPR)
 *	@copy	default
 *	
 *	Copyright (c) Mbedthis Software LLC, 2003-2005. All Rights Reserved.
 *	
 *	This software is distributed under commercial and open source licenses.
 *	You may use the GPL open source license described below or you may acquire 
 *	a commercial license from Mbedthis Software. You agree to be fully bound 
 *	by the terms of either license. Consult the LICENSE.TXT distributed with 
 *	this software for full details.
 *	
 *	This software is open source; you can redistribute it and/or modify it 
 *	under the terms of the GNU General Public License as published by the 
 *	Free Software Foundation; either version 2 of the License, or (at your 
 *	option) any later version. See the GNU General Public License for more 
 *	details at: http://www.mbedthis.com/downloads/gplLicense.html
 *	
 *	This program is distributed WITHOUT ANY WARRANTY; without even the 
 *	implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
 *	
 *	This GPL license does NOT permit incorporating this software into 
 *	proprietary programs. If you are unable to comply with the GPL, you must
 *	acquire a commercial license to use this software. Commercial licenses 
 *	for this software and support services are available from Mbedthis 
 *	Software at http://www.mbedthis.com 
 *	
 *	@end
 */

#include	"miniMpr.h"
#include "param/param.h"
#include "lib/events/events.h"

/************************************ Code ************************************/
#if !BLD_APPWEB
#if !BLD_GOAHEAD_WEBSERVER

static void *mpr_ctx;

/* set the memory context to be used for all ejs variables */
void mprSetCtx(TALLOC_CTX *ctx)
{
	mpr_ctx = ctx;
}

/* return the memory context being used for all ejs variables */
void *mprMemCtx(void)
{
	return mpr_ctx;
}

struct event_context *mprEventCtx(void)
{
	return event_context_find(mprMemCtx());
}

/* return the loadparm context being used for all ejs variables */
struct loadparm_context *mprLpCtx(void)
{
	return global_loadparm;
}

void mprFree(void *ptr)
{
	talloc_free(ptr);
}

void *mprMalloc(uint size)
{
	return talloc_size(mpr_ctx, size);
}

/******************************************************************************/

void *mprRealloc(void *ptr, uint size)
{
	return talloc_realloc_size(mpr_ctx, ptr, size);
}

/******************************************************************************/

char *mprStrdup(const char *str)
{
	if (str == 0) {
		str = "";
	}
	return talloc_strdup(mpr_ctx, str);
}

/*****************************************************************************/

int mprAllocSprintf(char **msgbuf, int maxSize, const char *fmt, ...)
{
	va_list	args;
	char	*buf;
	int		count;

	va_start(args, fmt);
	buf = mprMalloc(maxSize + 1);
	count = mtVsprintf(buf, maxSize, fmt, args);
	*msgbuf = buf;
	va_end(args);
	return count;
}

/*****************************************************************************/

int mprAllocVsprintf(char **msgbuf, int maxSize, const char *fmt, va_list args)
{
	char	*buf;
	int		count;

	buf = mprMalloc(maxSize + 1);
	count = mtVsprintf(buf, maxSize, fmt, args);
	*msgbuf = buf;
	return count;
}


/*****************************************************************************/
/*
 *	Format a number as a string. FUTURE -- reverse args to be standard.
 *		ie. mprItoa(char *userBuf, int bufsize, int value);
 */

char *mprItoa(int value, char *buf, int width)
{
	char	numBuf[16];
	char	*cp, *dp, *endp;
	int		negative;

	cp = &numBuf[sizeof(numBuf)];
	*--cp = '\0';

	if (value < 0) {
		negative = 1;
		value = -value;
		width--;
	} else {
		negative = 0;
	}

	do {
		*--cp = '0' + (value % 10);
		value /= 10;
	} while (value > 0);

	if (negative) {
		*--cp = '-';
	}

	dp = buf;
	endp = &buf[width];
	while (dp < endp && *cp) {
		*dp++ = *cp++;
	}
	*dp++ = '\0';
	return buf;
}

/*****************************************************************************/

void mprLog(int level, const char *fmt, ...)
{
	va_list	args;
	char	*buf;

	if (DEBUGLVL(level)) {
		va_start(args, fmt);
		mprAllocVsprintf(&buf, MPR_MAX_STRING, fmt, args);
		va_end(args);
		DEBUG(level, ("mprLog: %s", buf));
		mprFree(buf);
	}
}

/*****************************************************************************/

void mprBreakpoint(const char *file, int line, const char *cond)
{
	char *buf;
	mprAllocSprintf(&buf, MPR_MAX_STRING, "esp exception - ASSERT at %s:%d, %s\n", 
					file, line, cond);
	ejs_exception(buf);
}

#endif /* !BLD_GOAHEAD_WEBSERVER */
/*****************************************************************************/
/*
 *	Create a general growable array structure
 */

MprArray *mprCreateArray()
{
	MprArray	*array;
	int			size;

	array = (MprArray*) mprMalloc(sizeof(MprArray));
	if (array == 0) {
		return 0;
	}
	memset(array, 0, sizeof(MprArray));

	size = MPR_ARRAY_INCR * sizeof(void*);
	array->handles = (void**) mprMalloc(size);
	if (array->handles == 0) {
		mprFree(array);
		return 0;
	}
	memset(array->handles, 0, size);
	array->max = MPR_ARRAY_INCR;
	array->used = 0;
	return array;
}

/*****************************************************************************/
/*
 *	Dispose of the array. Callers responsibility to dispose of handle entries.
 */

void mprDestroyArray(MprArray *array)
{
	mprAssert(array);
	mprAssert(array->max >= 0);
	mprAssert(array->used >= 0);

	mprFree(array->handles);
	mprFree(array);
}

/*****************************************************************************/
/*
 *	Add an item to the array
 */

int mprAddToArray(MprArray *array, void *item)
{
	int		memsize, idx, len;

	mprAssert(array);
	mprAssert(array->max >= 0);
	mprAssert(array->used >= 0);

	if (array->used < array->max) {
		idx = array->used++;
		mprAssert(idx >= 0 && idx < array->max);
		mprAssert(array->handles[idx] == 0);
		array->handles[idx] = item;
		return idx;
	}

	for (idx = array->used; idx < array->max; idx++) {
		if (array->handles[idx] == 0) {
			array->used++;
			mprAssert(array->handles[idx] == 0);
			array->handles[idx] = item;
			return idx;
		}
	}

	len = array->max + MPR_ARRAY_INCR;
	memsize = len * sizeof(void*);
	array->handles = (void**) mprRealloc((void*) array->handles, memsize);
	if (array->handles == NULL) {
		return -1;
	}
	memset(&array->handles[array->max], 0, sizeof(void*) * MPR_ARRAY_INCR);
	array->max = len;
	array->used++;

	mprAssert(idx >= 0 && idx < array->max);
	mprAssert(array->handles[idx] == 0);

	array->handles[idx] = item;
	return idx;
}

/*****************************************************************************/
/*
 *	Remove from the array
 */

int mprRemoveFromArray(MprArray *array, int idx)
{
	mprAssert(array);
	mprAssert(array->max > 0);
	mprAssert(idx >= 0 && idx < array->max);
	mprAssert(array->handles[idx] != 0);
	mprAssert(array->used > 0);

	array->handles[idx] = 0;
	return --array->used;
}

/*****************************************************************************/
/*
 *	Thread-safe wrapping of strtok. Note "str" is modifed as per strtok()
 */

char *mprStrTok(char *str, const char *delim, char **tok)
{
	char	*start, *end;
	int		i;

	start = str ? str : *tok;

	if (start == 0) {
		return 0;
	}
	
	i = strspn(start, delim);
	start += i;
	if (*start == '\0') {
		*tok = 0;
		return 0;
	}
	end = strpbrk(start, delim);
	if (end) {
		*end++ = '\0';
		i = strspn(end, delim);
		end += i;
	}
	*tok = end;
	return start;
}

/*****************************************************************************/

static int mprCoreStrcat(int alloc, char **destp, int destMax, int existingLen, 
	const char *delim, const char *src, va_list args)
{
	va_list		ap;
	char		*dest, *dp;
	const char *str;
	int			sepLen, addBytes, required;

	mprAssert(destp);
	mprAssert(destMax > 0);
	mprAssert(src);

	dest = *destp;
	sepLen = (delim) ? strlen(delim) : 0;

	va_copy(ap, args);
	addBytes = 0;
	str = src;
	while (str) {
		addBytes += strlen(str) + sepLen;
		str = va_arg(ap, const char*);
	}
	va_end(ap);

	if (existingLen > 0) {
		addBytes += sepLen;
	}
	required = existingLen + addBytes + 1;
	if (required >= destMax) {
		mprAssert(0);
		return MPR_ERR_WONT_FIT;
	}

	if (alloc) {
		if (dest == 0) {
			dest = (char*) mprMalloc(required);
		} else {
			dest = (char*) mprRealloc(dest, required);
		}
	} else {
		dest = (char*) *destp;
	}

	dp = &dest[existingLen];
	if (delim) {
		strcpy(dp, delim);
		dp += sepLen;
	}

	if (addBytes > 0) {
		va_copy(ap, args);
		str = src;
		while (str) {
			strcpy(dp, str);
			dp += strlen(str);
			str = va_arg(ap, char*);
			if (delim && str) {
				strcpy(dp, delim);
				dp += sepLen;
			}
		}
		va_end(ap);
	} else if (dest == 0) {
		dest = (char*) mprMalloc(1);
	} 
	*dp = '\0';

	*destp = dest;
	mprAssert(dp < &dest[required]);
	return required - 1;
}

/*****************************************************************************
  Note that this VARARGS function must be NULL (not 0, this must be a
  pointer) terminated
*/

int mprReallocStrcat(char **destp, int destMax, int existingLen, 
	const char *delim, const char *src,...)
{
	va_list		ap;
	int			rc;

	va_start(ap, src);
	rc = mprCoreStrcat(1, destp, destMax, existingLen, delim, src, ap);
	va_end(ap);
	return rc;
}

/*****************************************************************************/
/*
 *	Return the directory portion of a pathname into the users buffer.
 */

int mprGetDirName(char *buf, int bufsize, char *path)
{
	char	*cp;
	int		dlen;

	mprAssert(path);
	mprAssert(buf);
	mprAssert(bufsize > 0);

	cp = strrchr(path, '/');
	if (cp == 0) {
#if WIN
		cp = strrchr(path, '\\');
		if (cp == 0)
#endif
		{
			buf[0] = '\0';
			return 0;
		}
	}

	if (cp == path && cp[1] == '\0') {
		strcpy(buf, ".");
		return 0;
	}

	dlen = cp - path;
	if (dlen < bufsize) {
		if (dlen == 0) {
			dlen++;
		}
		mprMemcpy(buf, bufsize, path, dlen);
		buf[dlen] = '\0';
		return 0;
	}
	return MPR_ERR_WONT_FIT;
}

/*****************************************************************************/

int mprStrcpy(char *dest, int destMax, const char *src)
{
	int		len;

	mprAssert(dest);
	mprAssert(destMax > 0);
	mprAssert(src);

	len = strlen(src);
	if (len >= destMax && len > 0) {
		mprAssert(0);
		return MPR_ERR_WONT_FIT;
	}
	if (len > 0) {
		memcpy(dest, src, len);
		dest[len] = '\0';
	} else {
		*dest = '\0';
		len = 0;
	} 
	return len;
}

/*****************************************************************************/

int mprMemcpy(char *dest, int destMax, const char *src, int nbytes)
{
	mprAssert(dest);
	mprAssert(destMax > nbytes);
	mprAssert(src);
	mprAssert(nbytes > 0);

	if (nbytes > destMax) {
		mprAssert(0);
		return MPR_ERR_WONT_FIT;
	}
	if (nbytes > 0) {
		memcpy(dest, src, nbytes);
		return nbytes;
	} else {
		return 0;
	}
}

/*****************************************************************************/
#else
void miniMprDummy() {}
#endif // !BLD_APPWEB && !BLD_GOAHEAD_WEBSERVER

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim:tw=78
 * vim600: sw=4 ts=4 fdm=marker
 * vim<600: sw=4 ts=4
 */