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| 1 // Protocol Buffers - Google's data interchange format | 1 // Protocol Buffers - Google's data interchange format |
| 2 // Copyright 2008 Google Inc. All rights reserved. | 2 // Copyright 2008 Google Inc. All rights reserved. |
| 3 // https://developers.google.com/protocol-buffers/ | 3 // https://developers.google.com/protocol-buffers/ |
| 4 // | 4 // |
| 5 // Redistribution and use in source and binary forms, with or without | 5 // Redistribution and use in source and binary forms, with or without |
| 6 // modification, are permitted provided that the following conditions are | 6 // modification, are permitted provided that the following conditions are |
| 7 // met: | 7 // met: |
| 8 // | 8 // |
| 9 // * Redistributions of source code must retain the above copyright | 9 // * Redistributions of source code must retain the above copyright |
| 10 // notice, this list of conditions and the following disclaimer. | 10 // notice, this list of conditions and the following disclaimer. |
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| 21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 21 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 22 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 23 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 24 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 25 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 26 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 27 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 28 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 29 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 30 | 30 |
| 31 #import "GPBCodedOutputStream.h" | 31 #import "GPBCodedOutputStream_PackagePrivate.h" |
| 32 | 32 |
| 33 #import <mach/vm_param.h> | 33 #import <mach/vm_param.h> |
| 34 | 34 |
| 35 #import "GPBArray.h" | 35 #import "GPBArray.h" |
| 36 #import "GPBUnknownFieldSet_PackagePrivate.h" | 36 #import "GPBUnknownFieldSet_PackagePrivate.h" |
| 37 #import "GPBUtilities_PackagePrivate.h" | 37 #import "GPBUtilities_PackagePrivate.h" |
| 38 | 38 |
| 39 // Structure for containing state of a GPBCodedInputStream. Brought out into | 39 // Structure for containing state of a GPBCodedInputStream. Brought out into |
| 40 // a struct so that we can inline several common functions instead of dealing | 40 // a struct so that we can inline several common functions instead of dealing |
| 41 // with overhead of ObjC dispatch. | 41 // with overhead of ObjC dispatch. |
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| 171 | 171 |
| 172 - (instancetype)initWithOutputStream:(NSOutputStream *)output { | 172 - (instancetype)initWithOutputStream:(NSOutputStream *)output { |
| 173 NSMutableData *data = [NSMutableData dataWithLength:PAGE_SIZE]; | 173 NSMutableData *data = [NSMutableData dataWithLength:PAGE_SIZE]; |
| 174 return [self initWithOutputStream:output data:data]; | 174 return [self initWithOutputStream:output data:data]; |
| 175 } | 175 } |
| 176 | 176 |
| 177 - (instancetype)initWithData:(NSMutableData *)data { | 177 - (instancetype)initWithData:(NSMutableData *)data { |
| 178 return [self initWithOutputStream:nil data:data]; | 178 return [self initWithOutputStream:nil data:data]; |
| 179 } | 179 } |
| 180 | 180 |
| 181 - (instancetype)initWithOutputStream:(NSOutputStream *)output | |
| 182 bufferSize:(size_t)bufferSize { | |
| 183 NSMutableData *data = [NSMutableData dataWithLength:bufferSize]; | |
| 184 return [self initWithOutputStream:output data:data]; | |
| 185 } | |
| 186 | |
| 187 // This initializer isn't exposed, but it is the designated initializer. | 181 // This initializer isn't exposed, but it is the designated initializer. |
| 188 // Setting OutputStream and NSData is to control the buffering behavior/size | 182 // Setting OutputStream and NSData is to control the buffering behavior/size |
| 189 // of the work, but that is more obvious via the bufferSize: version. | 183 // of the work, but that is more obvious via the bufferSize: version. |
| 190 - (instancetype)initWithOutputStream:(NSOutputStream *)output | 184 - (instancetype)initWithOutputStream:(NSOutputStream *)output |
| 191 data:(NSMutableData *)data { | 185 data:(NSMutableData *)data { |
| 192 if ((self = [super init])) { | 186 if ((self = [super init])) { |
| 193 buffer_ = [data retain]; | 187 buffer_ = [data retain]; |
| 194 [output open]; | 188 [output open]; |
| 195 state_.bytes = [data mutableBytes]; | 189 state_.bytes = [data mutableBytes]; |
| 196 state_.size = [data length]; | 190 state_.size = [data length]; |
| 197 state_.output = [output retain]; | 191 state_.output = [output retain]; |
| 198 } | 192 } |
| 199 return self; | 193 return self; |
| 200 } | 194 } |
| 201 | 195 |
| 202 + (instancetype)streamWithOutputStream:(NSOutputStream *)output | 196 + (instancetype)streamWithOutputStream:(NSOutputStream *)output { |
| 203 bufferSize:(size_t)bufferSize { | 197 NSMutableData *data = [NSMutableData dataWithLength:PAGE_SIZE]; |
| 204 return [[[self alloc] initWithOutputStream:output | 198 return [[[self alloc] initWithOutputStream:output |
| 205 bufferSize:bufferSize] autorelease]; | 199 data:data] autorelease]; |
| 206 } | |
| 207 | |
| 208 + (instancetype)streamWithOutputStream:(NSOutputStream *)output { | |
| 209 return [[[self alloc] initWithOutputStream:output | |
| 210 bufferSize:PAGE_SIZE] autorelease]; | |
| 211 } | 200 } |
| 212 | 201 |
| 213 + (instancetype)streamWithData:(NSMutableData *)data { | 202 + (instancetype)streamWithData:(NSMutableData *)data { |
| 214 return [[[self alloc] initWithData:data] autorelease]; | 203 return [[[self alloc] initWithData:data] autorelease]; |
| 215 } | 204 } |
| 216 | 205 |
| 217 - (void)writeDoubleNoTag:(double)value { | 206 - (void)writeDoubleNoTag:(double)value { |
| 218 GPBWriteRawLittleEndian64(&state_, GPBConvertDoubleToInt64(value)); | 207 GPBWriteRawLittleEndian64(&state_, GPBConvertDoubleToInt64(value)); |
| 219 } | 208 } |
| 220 | 209 |
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| 1223 if ((value & (0xffffffffffffffffL << 14)) == 0) return 2; | 1212 if ((value & (0xffffffffffffffffL << 14)) == 0) return 2; |
| 1224 if ((value & (0xffffffffffffffffL << 21)) == 0) return 3; | 1213 if ((value & (0xffffffffffffffffL << 21)) == 0) return 3; |
| 1225 if ((value & (0xffffffffffffffffL << 28)) == 0) return 4; | 1214 if ((value & (0xffffffffffffffffL << 28)) == 0) return 4; |
| 1226 if ((value & (0xffffffffffffffffL << 35)) == 0) return 5; | 1215 if ((value & (0xffffffffffffffffL << 35)) == 0) return 5; |
| 1227 if ((value & (0xffffffffffffffffL << 42)) == 0) return 6; | 1216 if ((value & (0xffffffffffffffffL << 42)) == 0) return 6; |
| 1228 if ((value & (0xffffffffffffffffL << 49)) == 0) return 7; | 1217 if ((value & (0xffffffffffffffffL << 49)) == 0) return 7; |
| 1229 if ((value & (0xffffffffffffffffL << 56)) == 0) return 8; | 1218 if ((value & (0xffffffffffffffffL << 56)) == 0) return 8; |
| 1230 if ((value & (0xffffffffffffffffL << 63)) == 0) return 9; | 1219 if ((value & (0xffffffffffffffffL << 63)) == 0) return 9; |
| 1231 return 10; | 1220 return 10; |
| 1232 } | 1221 } |
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