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author | Paul Yang <paulyang1211@gmail.com> | 2015-05-06 17:32:07 -0700 |
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committer | Paul Yang <paulyang1211@gmail.com> | 2015-05-06 17:32:07 -0700 |
commit | b89de5f6e0d81eccc34664f19362b83a82a152ca (patch) | |
tree | f27448a279bea152488306d66e999c4d2a70fa42 /objectivec/GPBCodedInputStream_PackagePrivate.h | |
parent | f47db47cd97c00a3a49584eda13e03c3352e5215 (diff) | |
parent | 30650d81d9baa446dbc8deb784ba53794cafda5b (diff) | |
download | protobuf-b89de5f6e0d81eccc34664f19362b83a82a152ca.tar.gz protobuf-b89de5f6e0d81eccc34664f19362b83a82a152ca.tar.bz2 protobuf-b89de5f6e0d81eccc34664f19362b83a82a152ca.zip |
Merge pull request #331 from thomasvl/objc_alpha1_drop
Objective C compiler plugin and runtime
Diffstat (limited to 'objectivec/GPBCodedInputStream_PackagePrivate.h')
-rw-r--r-- | objectivec/GPBCodedInputStream_PackagePrivate.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/objectivec/GPBCodedInputStream_PackagePrivate.h b/objectivec/GPBCodedInputStream_PackagePrivate.h new file mode 100644 index 00000000..ba6471ef --- /dev/null +++ b/objectivec/GPBCodedInputStream_PackagePrivate.h @@ -0,0 +1,131 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// https://developers.google.com/protocol-buffers/ +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// This header is private to the ProtobolBuffers library and must NOT be +// included by any sources outside this library. The contents of this file are +// subject to change at any time without notice. + +#import "GPBCodedInputStream.h" + +#import <libkern/OSAtomic.h> + +@class GPBUnknownFieldSet; +@class GPBFieldDescriptor; + +// GPBString is a string subclass that avoids the overhead of initializing +// a full NSString until it is actually needed. Lots of protocol buffers contain +// strings, and instantiating all of those strings and having them parsed to +// verify correctness when the message was being read was expensive, when many +// of the strings were never being used. +// +// Note for future-self. I tried implementing this using a NSProxy. +// Turned out the performance was horrible in client apps because folks +// like to use libraries like SBJSON that grab characters one at a time. +// The proxy overhead was a killer. +@interface GPBString : NSString +@end + +typedef struct GPBCodedInputStreamState { + const uint8_t *bytes; + size_t bufferSize; + size_t bufferPos; + + // For parsing subsections of an input stream you can put a hard limit on + // how much should be read. Normally the limit is the end of the stream, + // but you can adjust it to anywhere, and if you hit it you will be at the + // end of the stream, until you adjust the limit. + size_t currentLimit; + int32_t lastTag; + NSUInteger recursionDepth; +} GPBCodedInputStreamState; + +@interface GPBCodedInputStream () { + @package + struct GPBCodedInputStreamState state_; + NSData *buffer_; +} + +// Group support is deprecated, so we hide this interface from users, but +// support for older data. +- (void)readGroup:(int32_t)fieldNumber + message:(GPBMessage *)message + extensionRegistry:(GPBExtensionRegistry *)extensionRegistry; + +// Reads a group field value from the stream and merges it into the given +// UnknownFieldSet. +- (void)readUnknownGroup:(int32_t)fieldNumber + message:(GPBUnknownFieldSet *)message; + +// Reads a map entry. +- (void)readMapEntry:(id)mapDictionary + extensionRegistry:(GPBExtensionRegistry *)extensionRegistry + field:(GPBFieldDescriptor *)field + parentMessage:(GPBMessage *)parentMessage; +@end + +CF_EXTERN_C_BEGIN + +// Returns a GPBString with a +1 retain count. +GPBString *GPBCreateGPBStringWithUTF8(const void *bytes, NSUInteger length) + __attribute__((ns_returns_retained)); + +int32_t GPBCodedInputStreamReadTag(GPBCodedInputStreamState *state); + +double GPBCodedInputStreamReadDouble(GPBCodedInputStreamState *state); +float GPBCodedInputStreamReadFloat(GPBCodedInputStreamState *state); +uint64_t GPBCodedInputStreamReadUInt64(GPBCodedInputStreamState *state); +uint32_t GPBCodedInputStreamReadUInt32(GPBCodedInputStreamState *state); +int64_t GPBCodedInputStreamReadInt64(GPBCodedInputStreamState *state); +int32_t GPBCodedInputStreamReadInt32(GPBCodedInputStreamState *state); +uint64_t GPBCodedInputStreamReadFixed64(GPBCodedInputStreamState *state); +uint32_t GPBCodedInputStreamReadFixed32(GPBCodedInputStreamState *state); +int32_t GPBCodedInputStreamReadEnum(GPBCodedInputStreamState *state); +int32_t GPBCodedInputStreamReadSFixed32(GPBCodedInputStreamState *state); +int64_t GPBCodedInputStreamReadSFixed64(GPBCodedInputStreamState *state); +int32_t GPBCodedInputStreamReadSInt32(GPBCodedInputStreamState *state); +int64_t GPBCodedInputStreamReadSInt64(GPBCodedInputStreamState *state); +BOOL GPBCodedInputStreamReadBool(GPBCodedInputStreamState *state); +NSString *GPBCodedInputStreamReadRetainedString(GPBCodedInputStreamState *state) + __attribute((ns_returns_retained)); +NSData *GPBCodedInputStreamReadRetainedData(GPBCodedInputStreamState *state) + __attribute((ns_returns_retained)); +NSData *GPBCodedInputStreamReadRetainedDataNoCopy( + GPBCodedInputStreamState *state) __attribute((ns_returns_retained)); + +size_t GPBCodedInputStreamPushLimit(GPBCodedInputStreamState *state, + size_t byteLimit); +void GPBCodedInputStreamPopLimit(GPBCodedInputStreamState *state, + size_t oldLimit); +size_t GPBCodedInputStreamBytesUntilLimit(GPBCodedInputStreamState *state); +BOOL GPBCodedInputStreamIsAtEnd(GPBCodedInputStreamState *state); +void GPBCodedInputStreamCheckLastTagWas(GPBCodedInputStreamState *state, + int32_t value); + +CF_EXTERN_C_END |