xpcom/io/nsStringStream.h@97036ab72558 (annotated)
xpcom/io/nsStringStream.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.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef nsStringStream_h__ |
| michael@0 | 7 | #define nsStringStream_h__ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "nsIStringStream.h" |
| michael@0 | 10 | #include "nsStringGlue.h" |
| michael@0 | 11 | #include "nsMemory.h" |
| michael@0 | 12 | |
| michael@0 | 13 | /** |
| michael@0 | 14 | * Implements: |
| michael@0 | 15 | * nsIStringInputStream |
| michael@0 | 16 | * nsIInputStream |
| michael@0 | 17 | * nsISeekableStream |
| michael@0 | 18 | * nsISupportsCString |
| michael@0 | 19 | */ |
| michael@0 | 20 | #define NS_STRINGINPUTSTREAM_CONTRACTID "@mozilla.org/io/string-input-stream;1" |
| michael@0 | 21 | #define NS_STRINGINPUTSTREAM_CID \ |
| michael@0 | 22 | { /* 0abb0835-5000-4790-af28-61b3ba17c295 */ \ |
| michael@0 | 23 | 0x0abb0835, \ |
| michael@0 | 24 | 0x5000, \ |
| michael@0 | 25 | 0x4790, \ |
| michael@0 | 26 | {0xaf, 0x28, 0x61, 0xb3, 0xba, 0x17, 0xc2, 0x95} \ |
| michael@0 | 27 | } |
| michael@0 | 28 | |
| michael@0 | 29 | /** |
| michael@0 | 30 | * Factory method to get an nsInputStream from a byte buffer. Result will |
| michael@0 | 31 | * implement nsIStringInputStream and nsISeekableStream. |
| michael@0 | 32 | * |
| michael@0 | 33 | * If aAssignment is NS_ASSIGNMENT_COPY, then the resulting stream holds a copy |
| michael@0 | 34 | * of the given buffer (aStringToRead), and the caller is free to discard |
| michael@0 | 35 | * aStringToRead after this function returns. |
| michael@0 | 36 | * |
| michael@0 | 37 | * If aAssignment is NS_ASSIGNMENT_DEPEND, then the resulting stream refers |
| michael@0 | 38 | * directly to the given buffer (aStringToRead), so the caller must ensure that |
| michael@0 | 39 | * the buffer remains valid for the lifetime of the stream object. Use with |
| michael@0 | 40 | * care!! |
| michael@0 | 41 | * |
| michael@0 | 42 | * If aAssignment is NS_ASSIGNMENT_ADOPT, then the resulting stream refers |
| michael@0 | 43 | * directly to the given buffer (aStringToRead) and will free aStringToRead |
| michael@0 | 44 | * once the stream is closed. |
| michael@0 | 45 | * |
| michael@0 | 46 | * If aLength is less than zero, then the length of aStringToRead will be |
| michael@0 | 47 | * determined by scanning the buffer for the first null byte. |
| michael@0 | 48 | */ |
| michael@0 | 49 | extern nsresult |
| michael@0 | 50 | NS_NewByteInputStream(nsIInputStream** aStreamResult, |
| michael@0 | 51 | const char* aStringToRead, int32_t aLength = -1, |
| michael@0 | 52 | nsAssignmentType aAssignment = NS_ASSIGNMENT_DEPEND); |
| michael@0 | 53 | |
| michael@0 | 54 | /** |
| michael@0 | 55 | * Factory method to get an nsInputStream from an nsAString. Result will |
| michael@0 | 56 | * implement nsIStringInputStream and nsISeekableStream. |
| michael@0 | 57 | * |
| michael@0 | 58 | * The given string data will be converted to a single-byte data buffer via |
| michael@0 | 59 | * truncation (i.e., the high-order byte of each character will be discarded). |
| michael@0 | 60 | * This could result in data-loss, so be careful when using this function. |
| michael@0 | 61 | */ |
| michael@0 | 62 | extern nsresult |
| michael@0 | 63 | NS_NewStringInputStream(nsIInputStream** aStreamResult, |
| michael@0 | 64 | const nsAString& aStringToRead); |
| michael@0 | 65 | |
| michael@0 | 66 | /** |
| michael@0 | 67 | * Factory method to get an nsInputStream from an nsACString. Result will |
| michael@0 | 68 | * implement nsIStringInputStream and nsISeekableStream. |
| michael@0 | 69 | */ |
| michael@0 | 70 | extern nsresult |
| michael@0 | 71 | NS_NewCStringInputStream(nsIInputStream** aStreamResult, |
| michael@0 | 72 | const nsACString& aStringToRead); |
| michael@0 | 73 | |
| michael@0 | 74 | #endif // nsStringStream_h__ |
