xpcom/glue/nsTextFormatter.h@97036ab72558
xpcom/glue/nsTextFormatter.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 /*
7 * This code was copied from xpcom/ds/nsTextFormatter r1.3
8 * Memory model and Frozen linkage changes only.
9 * -- Prasad <prasad@medhas.org>
10 */
12 #ifndef nsTextFormatter_h___
13 #define nsTextFormatter_h___
15 /*
16 ** API for PR printf like routines. Supports the following formats
17 ** %d - decimal
18 ** %u - unsigned decimal
19 ** %x - unsigned hex
20 ** %X - unsigned uppercase hex
21 ** %o - unsigned octal
22 ** %hd, %hu, %hx, %hX, %ho - 16-bit versions of above
23 ** %ld, %lu, %lx, %lX, %lo - 32-bit versions of above
24 ** %lld, %llu, %llx, %llX, %llo - 64 bit versions of above
25 ** %s - utf8 string
26 ** %S - char16_t string
27 ** %c - character
28 ** %p - pointer (deals with machine dependent pointer size)
29 ** %f - float
30 ** %g - float
31 */
32 #include "prio.h"
33 #include <stdio.h>
34 #include <stdarg.h>
35 #include "nscore.h"
36 #include "nsStringGlue.h"
38 #ifdef XPCOM_GLUE
39 #error "nsTextFormatter is not available in the standalone glue due to NSPR dependencies."
40 #endif
42 class NS_COM_GLUE nsTextFormatter {
44 public:
46 /*
47 * sprintf into a fixed size buffer. Guarantees that the buffer is null
48 * terminated. Returns the length of the written output, NOT including the
49 * null terminator, or (uint32_t)-1 if an error occurs.
50 */
51 static uint32_t snprintf(char16_t *out, uint32_t outlen, const char16_t *fmt, ...);
53 /*
54 * sprintf into a nsMemory::Alloc'd buffer. Return a pointer to
55 * buffer on success, nullptr on failure.
56 */
57 static char16_t* smprintf(const char16_t *fmt, ...);
59 static uint32_t ssprintf(nsAString& out, const char16_t* fmt, ...);
61 /*
62 * va_list forms of the above.
63 */
64 static uint32_t vsnprintf(char16_t *out, uint32_t outlen, const char16_t *fmt, va_list ap);
65 static char16_t* vsmprintf(const char16_t *fmt, va_list ap);
66 static uint32_t vssprintf(nsAString& out, const char16_t *fmt, va_list ap);
68 /*
69 * Free the memory allocated, for the caller, by smprintf.
70 * -- Deprecated --
71 * Callers can substitute calling smprintf_free with nsMemory::Free
72 */
73 static void smprintf_free(char16_t *mem);
75 };
77 #endif /* nsTextFormatter_h___ */
