Azure IoT common library
Dependents: STM32F746_iothub_client_sample_mqtt f767zi_mqtt iothub_client_sample_amqp iothub_client_sample_http ... more
buffer.c@6:c55b013dfc2a, 2016-07-01 (annotated)
- Committer:
- Azure.IoT Build
- Date:
- Fri Jul 01 10:43:23 2016 -0700
- Revision:
- 6:c55b013dfc2a
- Parent:
- 0:fa2de1b79154
- Child:
- 10:1be0bc9a9deb
1.0.10
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Azure.IoT Build | 0:fa2de1b79154 | 1 | // Copyright (c) Microsoft. All rights reserved. |
Azure.IoT Build | 0:fa2de1b79154 | 2 | // Licensed under the MIT license. See LICENSE file in the project root for full license information. |
Azure.IoT Build | 0:fa2de1b79154 | 3 | |
Azure.IoT Build | 0:fa2de1b79154 | 4 | // |
Azure.IoT Build | 0:fa2de1b79154 | 5 | // PUT NO INCLUDES BEFORE HERE |
Azure.IoT Build | 0:fa2de1b79154 | 6 | // |
Azure.IoT Build | 0:fa2de1b79154 | 7 | #include <stdlib.h> |
Azure.IoT Build | 0:fa2de1b79154 | 8 | #ifdef _CRTDBG_MAP_ALLOC |
Azure.IoT Build | 0:fa2de1b79154 | 9 | #include <crtdbg.h> |
Azure.IoT Build | 0:fa2de1b79154 | 10 | #endif |
Azure.IoT Build | 0:fa2de1b79154 | 11 | #include "azure_c_shared_utility/gballoc.h" |
Azure.IoT Build | 0:fa2de1b79154 | 12 | |
Azure.IoT Build | 0:fa2de1b79154 | 13 | #include <stddef.h> |
Azure.IoT Build | 0:fa2de1b79154 | 14 | #include <string.h> |
Azure.IoT Build | 0:fa2de1b79154 | 15 | // |
Azure.IoT Build | 0:fa2de1b79154 | 16 | // PUT NO CLIENT LIBRARY INCLUDES BEFORE HERE |
Azure.IoT Build | 0:fa2de1b79154 | 17 | // |
Azure.IoT Build | 0:fa2de1b79154 | 18 | |
Azure.IoT Build | 0:fa2de1b79154 | 19 | #include "azure_c_shared_utility/buffer_.h" |
Azure.IoT Build | 6:c55b013dfc2a | 20 | #include "azure_c_shared_utility/xlogging.h" |
Azure.IoT Build | 0:fa2de1b79154 | 21 | |
Azure.IoT Build | 0:fa2de1b79154 | 22 | typedef struct BUFFER_TAG |
Azure.IoT Build | 0:fa2de1b79154 | 23 | { |
Azure.IoT Build | 0:fa2de1b79154 | 24 | unsigned char* buffer; |
Azure.IoT Build | 0:fa2de1b79154 | 25 | size_t size; |
Azure.IoT Build | 0:fa2de1b79154 | 26 | }BUFFER; |
Azure.IoT Build | 0:fa2de1b79154 | 27 | |
Azure.IoT Build | 0:fa2de1b79154 | 28 | /* Codes_SRS_BUFFER_07_001: [BUFFER_new shall allocate a BUFFER_HANDLE that will contain a NULL unsigned char*.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 29 | BUFFER_HANDLE BUFFER_new(void) |
Azure.IoT Build | 0:fa2de1b79154 | 30 | { |
Azure.IoT Build | 0:fa2de1b79154 | 31 | BUFFER* temp = (BUFFER*)malloc(sizeof(BUFFER)); |
Azure.IoT Build | 0:fa2de1b79154 | 32 | /* Codes_SRS_BUFFER_07_002: [BUFFER_new shall return NULL on any error that occurs.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 33 | if (temp != NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 34 | { |
Azure.IoT Build | 0:fa2de1b79154 | 35 | temp->buffer = NULL; |
Azure.IoT Build | 0:fa2de1b79154 | 36 | temp->size = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 37 | } |
Azure.IoT Build | 0:fa2de1b79154 | 38 | return (BUFFER_HANDLE)temp; |
Azure.IoT Build | 0:fa2de1b79154 | 39 | } |
Azure.IoT Build | 0:fa2de1b79154 | 40 | |
Azure.IoT Build | 0:fa2de1b79154 | 41 | BUFFER_HANDLE BUFFER_create(const unsigned char* source, size_t size) |
Azure.IoT Build | 0:fa2de1b79154 | 42 | { |
Azure.IoT Build | 0:fa2de1b79154 | 43 | BUFFER* result; |
Azure.IoT Build | 0:fa2de1b79154 | 44 | /*Codes_SRS_BUFFER_02_001: [If source is NULL then BUFFER_create shall return NULL.]*/ |
Azure.IoT Build | 0:fa2de1b79154 | 45 | if (source == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 46 | { |
Azure.IoT Build | 0:fa2de1b79154 | 47 | result = NULL; |
Azure.IoT Build | 0:fa2de1b79154 | 48 | } |
Azure.IoT Build | 0:fa2de1b79154 | 49 | else |
Azure.IoT Build | 0:fa2de1b79154 | 50 | { |
Azure.IoT Build | 0:fa2de1b79154 | 51 | /*Codes_SRS_BUFFER_02_002: [Otherwise, BUFFER_create shall allocate memory to hold size bytes and shall copy from source size bytes into the newly allocated memory.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 52 | result = (BUFFER*)malloc(sizeof(BUFFER)); |
Azure.IoT Build | 0:fa2de1b79154 | 53 | if (result == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 54 | { |
Azure.IoT Build | 0:fa2de1b79154 | 55 | /*Codes_SRS_BUFFER_02_003: [If allocating memory fails, then BUFFER_create shall return NULL.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 56 | /*fallthrough*/ |
Azure.IoT Build | 0:fa2de1b79154 | 57 | } |
Azure.IoT Build | 0:fa2de1b79154 | 58 | else |
Azure.IoT Build | 0:fa2de1b79154 | 59 | { |
Azure.IoT Build | 0:fa2de1b79154 | 60 | result->buffer = (unsigned char*)malloc(size); |
Azure.IoT Build | 0:fa2de1b79154 | 61 | if (result->buffer == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 62 | { |
Azure.IoT Build | 0:fa2de1b79154 | 63 | /*Codes_SRS_BUFFER_02_003: [If allocating memory fails, then BUFFER_create shall return NULL.]*/ |
Azure.IoT Build | 0:fa2de1b79154 | 64 | free(result); |
Azure.IoT Build | 0:fa2de1b79154 | 65 | result = NULL; |
Azure.IoT Build | 0:fa2de1b79154 | 66 | } |
Azure.IoT Build | 0:fa2de1b79154 | 67 | else |
Azure.IoT Build | 0:fa2de1b79154 | 68 | { |
Azure.IoT Build | 0:fa2de1b79154 | 69 | /*Codes_SRS_BUFFER_02_004: [Otherwise, BUFFER_create shall return a non-NULL handle.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 70 | memcpy(result->buffer, source, size); |
Azure.IoT Build | 0:fa2de1b79154 | 71 | result->size = size; |
Azure.IoT Build | 0:fa2de1b79154 | 72 | } |
Azure.IoT Build | 0:fa2de1b79154 | 73 | } |
Azure.IoT Build | 0:fa2de1b79154 | 74 | } |
Azure.IoT Build | 0:fa2de1b79154 | 75 | return (BUFFER_HANDLE)result; |
Azure.IoT Build | 0:fa2de1b79154 | 76 | } |
Azure.IoT Build | 0:fa2de1b79154 | 77 | |
Azure.IoT Build | 0:fa2de1b79154 | 78 | /* Codes_SRS_BUFFER_07_003: [BUFFER_delete shall delete the data associated with the BUFFER_HANDLE along with the Buffer.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 79 | void BUFFER_delete(BUFFER_HANDLE handle) |
Azure.IoT Build | 0:fa2de1b79154 | 80 | { |
Azure.IoT Build | 0:fa2de1b79154 | 81 | /* Codes_SRS_BUFFER_07_004: [BUFFER_delete shall not delete any BUFFER_HANDLE that is NULL.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 82 | if (handle != NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 83 | { |
Azure.IoT Build | 0:fa2de1b79154 | 84 | BUFFER* b = (BUFFER*)handle; |
Azure.IoT Build | 0:fa2de1b79154 | 85 | if (b->buffer != NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 86 | { |
Azure.IoT Build | 0:fa2de1b79154 | 87 | /* Codes_SRS_BUFFER_07_003: [BUFFER_delete shall delete the data associated with the BUFFER_HANDLE along with the Buffer.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 88 | free(b->buffer); |
Azure.IoT Build | 0:fa2de1b79154 | 89 | } |
Azure.IoT Build | 0:fa2de1b79154 | 90 | free(b); |
Azure.IoT Build | 0:fa2de1b79154 | 91 | } |
Azure.IoT Build | 0:fa2de1b79154 | 92 | } |
Azure.IoT Build | 0:fa2de1b79154 | 93 | |
Azure.IoT Build | 0:fa2de1b79154 | 94 | /*return 0 if the buffer was copied*/ |
Azure.IoT Build | 0:fa2de1b79154 | 95 | /*else return different than zero*/ |
Azure.IoT Build | 0:fa2de1b79154 | 96 | /* Codes_SRS_BUFFER_07_008: [BUFFER_build allocates size_t bytes, copies the unsigned char* into the buffer and returns zero on success.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 97 | int BUFFER_build(BUFFER_HANDLE handle, const unsigned char* source, size_t size) |
Azure.IoT Build | 0:fa2de1b79154 | 98 | { |
Azure.IoT Build | 0:fa2de1b79154 | 99 | int result; |
Azure.IoT Build | 0:fa2de1b79154 | 100 | if (handle == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 101 | { |
Azure.IoT Build | 0:fa2de1b79154 | 102 | /* Codes_SRS_BUFFER_07_009: [BUFFER_build shall return nonzero if handle is NULL ] */ |
Azure.IoT Build | 0:fa2de1b79154 | 103 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 104 | } |
Azure.IoT Build | 0:fa2de1b79154 | 105 | /* Codes_SRS_BUFFER_01_002: [The size argument can be zero, in which case the underlying buffer held by the buffer instance shall be freed.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 106 | else if (size == 0) |
Azure.IoT Build | 0:fa2de1b79154 | 107 | { |
Azure.IoT Build | 0:fa2de1b79154 | 108 | /* Codes_SRS_BUFFER_01_003: [If size is zero, source can be NULL.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 109 | BUFFER* b = (BUFFER*)handle; |
Azure.IoT Build | 0:fa2de1b79154 | 110 | free(b->buffer); |
Azure.IoT Build | 0:fa2de1b79154 | 111 | b->buffer = NULL; |
Azure.IoT Build | 0:fa2de1b79154 | 112 | b->size = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 113 | |
Azure.IoT Build | 0:fa2de1b79154 | 114 | result = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 115 | } |
Azure.IoT Build | 0:fa2de1b79154 | 116 | else |
Azure.IoT Build | 0:fa2de1b79154 | 117 | { |
Azure.IoT Build | 0:fa2de1b79154 | 118 | if (source == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 119 | { |
Azure.IoT Build | 0:fa2de1b79154 | 120 | /* Codes_SRS_BUFFER_01_001: [If size is positive and source is NULL, BUFFER_build shall return nonzero] */ |
Azure.IoT Build | 0:fa2de1b79154 | 121 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 122 | } |
Azure.IoT Build | 0:fa2de1b79154 | 123 | else |
Azure.IoT Build | 0:fa2de1b79154 | 124 | { |
Azure.IoT Build | 0:fa2de1b79154 | 125 | BUFFER* b = (BUFFER*)handle; |
Azure.IoT Build | 0:fa2de1b79154 | 126 | /* Codes_SRS_BUFFER_07_011: [BUFFER_build shall overwrite previous contents if the buffer has been previously allocated.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 127 | unsigned char* newBuffer = (unsigned char*)realloc(b->buffer, size); |
Azure.IoT Build | 0:fa2de1b79154 | 128 | if (newBuffer == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 129 | { |
Azure.IoT Build | 0:fa2de1b79154 | 130 | /* Codes_SRS_BUFFER_07_010: [BUFFER_build shall return nonzero if any error is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 131 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 132 | } |
Azure.IoT Build | 0:fa2de1b79154 | 133 | else |
Azure.IoT Build | 0:fa2de1b79154 | 134 | { |
Azure.IoT Build | 0:fa2de1b79154 | 135 | b->buffer = newBuffer; |
Azure.IoT Build | 0:fa2de1b79154 | 136 | b->size = size; |
Azure.IoT Build | 0:fa2de1b79154 | 137 | /* Codes_SRS_BUFFER_01_002: [The size argument can be zero, in which case nothing shall be copied from source.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 138 | (void)memcpy(b->buffer, source, size); |
Azure.IoT Build | 0:fa2de1b79154 | 139 | |
Azure.IoT Build | 0:fa2de1b79154 | 140 | result = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 141 | } |
Azure.IoT Build | 0:fa2de1b79154 | 142 | } |
Azure.IoT Build | 0:fa2de1b79154 | 143 | } |
Azure.IoT Build | 0:fa2de1b79154 | 144 | |
Azure.IoT Build | 0:fa2de1b79154 | 145 | return result; |
Azure.IoT Build | 0:fa2de1b79154 | 146 | } |
Azure.IoT Build | 0:fa2de1b79154 | 147 | |
Azure.IoT Build | 0:fa2de1b79154 | 148 | /*return 0 if the buffer was pre-build(that is, had its space allocated)*/ |
Azure.IoT Build | 0:fa2de1b79154 | 149 | /*else return different than zero*/ |
Azure.IoT Build | 0:fa2de1b79154 | 150 | /* Codes_SRS_BUFFER_07_005: [BUFFER_pre_build allocates size_t bytes of BUFFER_HANDLE and returns zero on success.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 151 | int BUFFER_pre_build(BUFFER_HANDLE handle, size_t size) |
Azure.IoT Build | 0:fa2de1b79154 | 152 | { |
Azure.IoT Build | 0:fa2de1b79154 | 153 | int result; |
Azure.IoT Build | 0:fa2de1b79154 | 154 | if (handle == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 155 | { |
Azure.IoT Build | 0:fa2de1b79154 | 156 | /* Codes_SRS_BUFFER_07_006: [If handle is NULL or size is 0 then BUFFER_pre_build shall return a nonzero value.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 157 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 158 | } |
Azure.IoT Build | 0:fa2de1b79154 | 159 | else if (size == 0) |
Azure.IoT Build | 0:fa2de1b79154 | 160 | { |
Azure.IoT Build | 0:fa2de1b79154 | 161 | /* Codes_SRS_BUFFER_07_006: [If handle is NULL or size is 0 then BUFFER_pre_build shall return a nonzero value.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 162 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 163 | } |
Azure.IoT Build | 0:fa2de1b79154 | 164 | else |
Azure.IoT Build | 0:fa2de1b79154 | 165 | { |
Azure.IoT Build | 0:fa2de1b79154 | 166 | BUFFER* b = (BUFFER*)handle; |
Azure.IoT Build | 0:fa2de1b79154 | 167 | if (b->buffer != NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 168 | { |
Azure.IoT Build | 0:fa2de1b79154 | 169 | /* Codes_SRS_BUFFER_07_007: [BUFFER_pre_build shall return nonzero if the buffer has been previously allocated and is not NULL.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 170 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 171 | } |
Azure.IoT Build | 0:fa2de1b79154 | 172 | else |
Azure.IoT Build | 0:fa2de1b79154 | 173 | { |
Azure.IoT Build | 0:fa2de1b79154 | 174 | if ((b->buffer = (unsigned char*)malloc(size)) == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 175 | { |
Azure.IoT Build | 0:fa2de1b79154 | 176 | /* Codes_SRS_BUFFER_07_013: [BUFFER_pre_build shall return nonzero if any error is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 177 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 178 | } |
Azure.IoT Build | 0:fa2de1b79154 | 179 | else |
Azure.IoT Build | 0:fa2de1b79154 | 180 | { |
Azure.IoT Build | 0:fa2de1b79154 | 181 | b->size = size; |
Azure.IoT Build | 0:fa2de1b79154 | 182 | result = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 183 | } |
Azure.IoT Build | 0:fa2de1b79154 | 184 | } |
Azure.IoT Build | 0:fa2de1b79154 | 185 | } |
Azure.IoT Build | 0:fa2de1b79154 | 186 | return result; |
Azure.IoT Build | 0:fa2de1b79154 | 187 | } |
Azure.IoT Build | 0:fa2de1b79154 | 188 | |
Azure.IoT Build | 0:fa2de1b79154 | 189 | /* Codes_SRS_BUFFER_07_019: [BUFFER_content shall return the data contained within the BUFFER_HANDLE.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 190 | int BUFFER_content(BUFFER_HANDLE handle, const unsigned char** content) |
Azure.IoT Build | 0:fa2de1b79154 | 191 | { |
Azure.IoT Build | 0:fa2de1b79154 | 192 | int result; |
Azure.IoT Build | 0:fa2de1b79154 | 193 | if ((handle == NULL) || (content == NULL)) |
Azure.IoT Build | 0:fa2de1b79154 | 194 | { |
Azure.IoT Build | 0:fa2de1b79154 | 195 | /* Codes_SRS_BUFFER_07_020: [If the handle and/or content*is NULL BUFFER_content shall return nonzero.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 196 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 197 | } |
Azure.IoT Build | 0:fa2de1b79154 | 198 | else |
Azure.IoT Build | 0:fa2de1b79154 | 199 | { |
Azure.IoT Build | 0:fa2de1b79154 | 200 | BUFFER* b = (BUFFER*)handle; |
Azure.IoT Build | 0:fa2de1b79154 | 201 | *content = b->buffer; |
Azure.IoT Build | 0:fa2de1b79154 | 202 | result = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 203 | } |
Azure.IoT Build | 0:fa2de1b79154 | 204 | return result; |
Azure.IoT Build | 0:fa2de1b79154 | 205 | } |
Azure.IoT Build | 0:fa2de1b79154 | 206 | |
Azure.IoT Build | 0:fa2de1b79154 | 207 | /*return 0 if everything went ok and whatever was built in the buffer was unbuilt*/ |
Azure.IoT Build | 0:fa2de1b79154 | 208 | /* Codes_SRS_BUFFER_07_012: [BUFFER_unbuild shall clear the underlying unsigned char* data associated with the BUFFER_HANDLE this will return zero on success.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 209 | extern int BUFFER_unbuild(BUFFER_HANDLE handle) |
Azure.IoT Build | 0:fa2de1b79154 | 210 | { |
Azure.IoT Build | 0:fa2de1b79154 | 211 | int result; |
Azure.IoT Build | 0:fa2de1b79154 | 212 | if (handle == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 213 | { |
Azure.IoT Build | 0:fa2de1b79154 | 214 | /* Codes_SRS_BUFFER_07_014: [BUFFER_unbuild shall return a nonzero value if BUFFER_HANDLE is NULL.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 215 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 216 | } |
Azure.IoT Build | 0:fa2de1b79154 | 217 | else |
Azure.IoT Build | 0:fa2de1b79154 | 218 | { |
Azure.IoT Build | 0:fa2de1b79154 | 219 | BUFFER* b = (BUFFER*)handle; |
Azure.IoT Build | 0:fa2de1b79154 | 220 | if (b->buffer != NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 221 | { |
Azure.IoT Build | 0:fa2de1b79154 | 222 | free(b->buffer); |
Azure.IoT Build | 0:fa2de1b79154 | 223 | b->buffer = NULL; |
Azure.IoT Build | 0:fa2de1b79154 | 224 | b->size = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 225 | result = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 226 | } |
Azure.IoT Build | 0:fa2de1b79154 | 227 | else |
Azure.IoT Build | 0:fa2de1b79154 | 228 | { |
Azure.IoT Build | 0:fa2de1b79154 | 229 | /* Codes_SRS_BUFFER_07_015: [BUFFER_unbuild shall return a nonzero value if the unsigned char* referenced by BUFFER_HANDLE is NULL.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 230 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 231 | } |
Azure.IoT Build | 0:fa2de1b79154 | 232 | } |
Azure.IoT Build | 0:fa2de1b79154 | 233 | return result; |
Azure.IoT Build | 0:fa2de1b79154 | 234 | } |
Azure.IoT Build | 0:fa2de1b79154 | 235 | |
Azure.IoT Build | 0:fa2de1b79154 | 236 | /* Codes_SRS_BUFFER_07_016: [BUFFER_enlarge shall increase the size of the unsigned char* referenced by BUFFER_HANDLE.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 237 | int BUFFER_enlarge(BUFFER_HANDLE handle, size_t enlargeSize) |
Azure.IoT Build | 0:fa2de1b79154 | 238 | { |
Azure.IoT Build | 0:fa2de1b79154 | 239 | int result; |
Azure.IoT Build | 0:fa2de1b79154 | 240 | if (handle == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 241 | { |
Azure.IoT Build | 0:fa2de1b79154 | 242 | /* Codes_SRS_BUFFER_07_017: [BUFFER_enlarge shall return a nonzero result if any parameters are NULL or zero.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 243 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 244 | } |
Azure.IoT Build | 0:fa2de1b79154 | 245 | else if (enlargeSize == 0) |
Azure.IoT Build | 0:fa2de1b79154 | 246 | { |
Azure.IoT Build | 0:fa2de1b79154 | 247 | /* Codes_SRS_BUFFER_07_017: [BUFFER_enlarge shall return a nonzero result if any parameters are NULL or zero.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 248 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 249 | } |
Azure.IoT Build | 0:fa2de1b79154 | 250 | else |
Azure.IoT Build | 0:fa2de1b79154 | 251 | { |
Azure.IoT Build | 0:fa2de1b79154 | 252 | BUFFER* b = (BUFFER*)handle; |
Azure.IoT Build | 0:fa2de1b79154 | 253 | unsigned char* temp = (unsigned char*)realloc(b->buffer, b->size + enlargeSize); |
Azure.IoT Build | 0:fa2de1b79154 | 254 | if (temp == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 255 | { |
Azure.IoT Build | 0:fa2de1b79154 | 256 | /* Codes_SRS_BUFFER_07_018: [BUFFER_enlarge shall return a nonzero result if any error is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 257 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 258 | } |
Azure.IoT Build | 0:fa2de1b79154 | 259 | else |
Azure.IoT Build | 0:fa2de1b79154 | 260 | { |
Azure.IoT Build | 0:fa2de1b79154 | 261 | b->buffer = temp; |
Azure.IoT Build | 0:fa2de1b79154 | 262 | b->size += enlargeSize; |
Azure.IoT Build | 0:fa2de1b79154 | 263 | result = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 264 | } |
Azure.IoT Build | 0:fa2de1b79154 | 265 | } |
Azure.IoT Build | 0:fa2de1b79154 | 266 | return result; |
Azure.IoT Build | 0:fa2de1b79154 | 267 | } |
Azure.IoT Build | 0:fa2de1b79154 | 268 | |
Azure.IoT Build | 0:fa2de1b79154 | 269 | /* Codes_SRS_BUFFER_07_021: [BUFFER_size shall place the size of the associated buffer in the size variable and return zero on success.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 270 | int BUFFER_size(BUFFER_HANDLE handle, size_t* size) |
Azure.IoT Build | 0:fa2de1b79154 | 271 | { |
Azure.IoT Build | 0:fa2de1b79154 | 272 | int result; |
Azure.IoT Build | 0:fa2de1b79154 | 273 | if ((handle == NULL) || (size == NULL)) |
Azure.IoT Build | 0:fa2de1b79154 | 274 | { |
Azure.IoT Build | 0:fa2de1b79154 | 275 | /* Codes_SRS_BUFFER_07_022: [BUFFER_size shall return a nonzero value for any error that is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 276 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 277 | } |
Azure.IoT Build | 0:fa2de1b79154 | 278 | else |
Azure.IoT Build | 0:fa2de1b79154 | 279 | { |
Azure.IoT Build | 0:fa2de1b79154 | 280 | BUFFER* b = (BUFFER*)handle; |
Azure.IoT Build | 0:fa2de1b79154 | 281 | *size = b->size; |
Azure.IoT Build | 0:fa2de1b79154 | 282 | result = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 283 | } |
Azure.IoT Build | 0:fa2de1b79154 | 284 | return result; |
Azure.IoT Build | 0:fa2de1b79154 | 285 | } |
Azure.IoT Build | 0:fa2de1b79154 | 286 | |
Azure.IoT Build | 0:fa2de1b79154 | 287 | /* Codes_SRS_BUFFER_07_024: [BUFFER_append concatenates b2 onto b1 without modifying b2 and shall return zero on success.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 288 | int BUFFER_append(BUFFER_HANDLE handle1, BUFFER_HANDLE handle2) |
Azure.IoT Build | 0:fa2de1b79154 | 289 | { |
Azure.IoT Build | 0:fa2de1b79154 | 290 | int result; |
Azure.IoT Build | 0:fa2de1b79154 | 291 | if ( (handle1 == NULL) || (handle2 == NULL) || (handle1 == handle2) ) |
Azure.IoT Build | 0:fa2de1b79154 | 292 | { |
Azure.IoT Build | 0:fa2de1b79154 | 293 | /* Codes_SRS_BUFFER_07_023: [BUFFER_append shall return a nonzero upon any error that is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 294 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 295 | } |
Azure.IoT Build | 0:fa2de1b79154 | 296 | else |
Azure.IoT Build | 0:fa2de1b79154 | 297 | { |
Azure.IoT Build | 0:fa2de1b79154 | 298 | BUFFER* b1 = (BUFFER*)handle1; |
Azure.IoT Build | 0:fa2de1b79154 | 299 | BUFFER* b2 = (BUFFER*)handle2; |
Azure.IoT Build | 0:fa2de1b79154 | 300 | if (b1->buffer == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 301 | { |
Azure.IoT Build | 0:fa2de1b79154 | 302 | /* Codes_SRS_BUFFER_07_023: [BUFFER_append shall return a nonzero upon any error that is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 303 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 304 | } |
Azure.IoT Build | 0:fa2de1b79154 | 305 | else if (b2->buffer == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 306 | { |
Azure.IoT Build | 0:fa2de1b79154 | 307 | /* Codes_SRS_BUFFER_07_023: [BUFFER_append shall return a nonzero upon any error that is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 308 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 309 | } |
Azure.IoT Build | 0:fa2de1b79154 | 310 | else |
Azure.IoT Build | 0:fa2de1b79154 | 311 | { |
Azure.IoT Build | 0:fa2de1b79154 | 312 | unsigned char* temp = (unsigned char*)realloc(b1->buffer, b1->size + b2->size); |
Azure.IoT Build | 0:fa2de1b79154 | 313 | if (temp == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 314 | { |
Azure.IoT Build | 0:fa2de1b79154 | 315 | /* Codes_SRS_BUFFER_07_023: [BUFFER_append shall return a nonzero upon any error that is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 316 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 317 | } |
Azure.IoT Build | 0:fa2de1b79154 | 318 | else |
Azure.IoT Build | 0:fa2de1b79154 | 319 | { |
Azure.IoT Build | 0:fa2de1b79154 | 320 | b1->buffer = temp; |
Azure.IoT Build | 0:fa2de1b79154 | 321 | // Append the BUFFER |
Azure.IoT Build | 0:fa2de1b79154 | 322 | memcpy(&b1->buffer[b1->size], b2->buffer, b2->size); |
Azure.IoT Build | 0:fa2de1b79154 | 323 | b1->size += b2->size; |
Azure.IoT Build | 0:fa2de1b79154 | 324 | result = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 325 | } |
Azure.IoT Build | 0:fa2de1b79154 | 326 | } |
Azure.IoT Build | 0:fa2de1b79154 | 327 | } |
Azure.IoT Build | 0:fa2de1b79154 | 328 | return result; |
Azure.IoT Build | 0:fa2de1b79154 | 329 | } |
Azure.IoT Build | 0:fa2de1b79154 | 330 | |
Azure.IoT Build | 0:fa2de1b79154 | 331 | int BUFFER_prepend(BUFFER_HANDLE handle1, BUFFER_HANDLE handle2) |
Azure.IoT Build | 0:fa2de1b79154 | 332 | { |
Azure.IoT Build | 0:fa2de1b79154 | 333 | int result; |
Azure.IoT Build | 0:fa2de1b79154 | 334 | if ((handle1 == NULL) || (handle2 == NULL) || (handle1 == handle2)) |
Azure.IoT Build | 0:fa2de1b79154 | 335 | { |
Azure.IoT Build | 0:fa2de1b79154 | 336 | /* : [BUFFER_append shall return a nonzero upon any error that is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 337 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 338 | } |
Azure.IoT Build | 0:fa2de1b79154 | 339 | else |
Azure.IoT Build | 0:fa2de1b79154 | 340 | { |
Azure.IoT Build | 0:fa2de1b79154 | 341 | BUFFER* b1 = (BUFFER*)handle1; |
Azure.IoT Build | 0:fa2de1b79154 | 342 | BUFFER* b2 = (BUFFER*)handle2; |
Azure.IoT Build | 0:fa2de1b79154 | 343 | if (b1->buffer == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 344 | { |
Azure.IoT Build | 0:fa2de1b79154 | 345 | /* : [BUFFER_append shall return a nonzero upon any error that is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 346 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 347 | } |
Azure.IoT Build | 0:fa2de1b79154 | 348 | else if (b2->buffer == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 349 | { |
Azure.IoT Build | 0:fa2de1b79154 | 350 | /* : [BUFFER_append shall return a nonzero upon any error that is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 351 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 352 | } |
Azure.IoT Build | 0:fa2de1b79154 | 353 | else |
Azure.IoT Build | 0:fa2de1b79154 | 354 | { |
Azure.IoT Build | 0:fa2de1b79154 | 355 | unsigned char* temp = (unsigned char*)malloc(b1->size + b2->size); |
Azure.IoT Build | 0:fa2de1b79154 | 356 | if (temp == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 357 | { |
Azure.IoT Build | 0:fa2de1b79154 | 358 | /* : [BUFFER_append shall return a nonzero upon any error that is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 359 | result = __LINE__; |
Azure.IoT Build | 0:fa2de1b79154 | 360 | } |
Azure.IoT Build | 0:fa2de1b79154 | 361 | else |
Azure.IoT Build | 0:fa2de1b79154 | 362 | { |
Azure.IoT Build | 0:fa2de1b79154 | 363 | // Append the BUFFER |
Azure.IoT Build | 0:fa2de1b79154 | 364 | memcpy(temp, b2->buffer, b2->size); |
Azure.IoT Build | 0:fa2de1b79154 | 365 | memcpy(&temp[b2->size], b1->buffer, b1->size); |
Azure.IoT Build | 0:fa2de1b79154 | 366 | free(b1->buffer); |
Azure.IoT Build | 0:fa2de1b79154 | 367 | b1->buffer = temp; |
Azure.IoT Build | 0:fa2de1b79154 | 368 | b1->size += b2->size; |
Azure.IoT Build | 0:fa2de1b79154 | 369 | result = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 370 | } |
Azure.IoT Build | 0:fa2de1b79154 | 371 | } |
Azure.IoT Build | 0:fa2de1b79154 | 372 | } |
Azure.IoT Build | 0:fa2de1b79154 | 373 | return result; |
Azure.IoT Build | 0:fa2de1b79154 | 374 | } |
Azure.IoT Build | 0:fa2de1b79154 | 375 | |
Azure.IoT Build | 0:fa2de1b79154 | 376 | |
Azure.IoT Build | 0:fa2de1b79154 | 377 | /* Codes_SRS_BUFFER_07_025: [BUFFER_u_char shall return a pointer to the underlying unsigned char*.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 378 | unsigned char* BUFFER_u_char(BUFFER_HANDLE handle) |
Azure.IoT Build | 0:fa2de1b79154 | 379 | { |
Azure.IoT Build | 0:fa2de1b79154 | 380 | unsigned char* result; |
Azure.IoT Build | 0:fa2de1b79154 | 381 | if (handle == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 382 | { |
Azure.IoT Build | 0:fa2de1b79154 | 383 | /* Codes_SRS_BUFFER_07_026: [BUFFER_u_char shall return NULL for any error that is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 384 | result = NULL; |
Azure.IoT Build | 0:fa2de1b79154 | 385 | } |
Azure.IoT Build | 0:fa2de1b79154 | 386 | else |
Azure.IoT Build | 0:fa2de1b79154 | 387 | { |
Azure.IoT Build | 0:fa2de1b79154 | 388 | BUFFER* b = (BUFFER*)handle; |
Azure.IoT Build | 0:fa2de1b79154 | 389 | result = b->buffer; |
Azure.IoT Build | 0:fa2de1b79154 | 390 | } |
Azure.IoT Build | 0:fa2de1b79154 | 391 | return result; |
Azure.IoT Build | 0:fa2de1b79154 | 392 | } |
Azure.IoT Build | 0:fa2de1b79154 | 393 | |
Azure.IoT Build | 0:fa2de1b79154 | 394 | /* Codes_SRS_BUFFER_07_027: [BUFFER_length shall return the size of the underlying buffer.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 395 | size_t BUFFER_length(BUFFER_HANDLE handle) |
Azure.IoT Build | 0:fa2de1b79154 | 396 | { |
Azure.IoT Build | 0:fa2de1b79154 | 397 | size_t result; |
Azure.IoT Build | 0:fa2de1b79154 | 398 | if (handle == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 399 | { |
Azure.IoT Build | 0:fa2de1b79154 | 400 | /* Codes_SRS_BUFFER_07_028: [BUFFER_length shall return zero for any error that is encountered.] */ |
Azure.IoT Build | 0:fa2de1b79154 | 401 | result = 0; |
Azure.IoT Build | 0:fa2de1b79154 | 402 | } |
Azure.IoT Build | 0:fa2de1b79154 | 403 | else |
Azure.IoT Build | 0:fa2de1b79154 | 404 | { |
Azure.IoT Build | 0:fa2de1b79154 | 405 | BUFFER* b = (BUFFER*)handle; |
Azure.IoT Build | 0:fa2de1b79154 | 406 | result = b->size; |
Azure.IoT Build | 0:fa2de1b79154 | 407 | } |
Azure.IoT Build | 0:fa2de1b79154 | 408 | return result; |
Azure.IoT Build | 0:fa2de1b79154 | 409 | } |
Azure.IoT Build | 0:fa2de1b79154 | 410 | |
Azure.IoT Build | 0:fa2de1b79154 | 411 | BUFFER_HANDLE BUFFER_clone(BUFFER_HANDLE handle) |
Azure.IoT Build | 0:fa2de1b79154 | 412 | { |
Azure.IoT Build | 0:fa2de1b79154 | 413 | BUFFER_HANDLE result; |
Azure.IoT Build | 0:fa2de1b79154 | 414 | if (handle == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 415 | { |
Azure.IoT Build | 0:fa2de1b79154 | 416 | result = NULL; |
Azure.IoT Build | 0:fa2de1b79154 | 417 | } |
Azure.IoT Build | 0:fa2de1b79154 | 418 | else |
Azure.IoT Build | 0:fa2de1b79154 | 419 | { |
Azure.IoT Build | 0:fa2de1b79154 | 420 | BUFFER* suppliedBuff = (BUFFER*)handle; |
Azure.IoT Build | 0:fa2de1b79154 | 421 | BUFFER* b = (BUFFER*)malloc(sizeof(BUFFER) ); |
Azure.IoT Build | 0:fa2de1b79154 | 422 | if (b != NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 423 | { |
Azure.IoT Build | 0:fa2de1b79154 | 424 | if ( (b->buffer = (unsigned char*)malloc(suppliedBuff->size) ) == NULL) |
Azure.IoT Build | 0:fa2de1b79154 | 425 | { |
Azure.IoT Build | 0:fa2de1b79154 | 426 | free(b); |
Azure.IoT Build | 0:fa2de1b79154 | 427 | result = NULL; |
Azure.IoT Build | 0:fa2de1b79154 | 428 | } |
Azure.IoT Build | 0:fa2de1b79154 | 429 | else |
Azure.IoT Build | 0:fa2de1b79154 | 430 | { |
Azure.IoT Build | 0:fa2de1b79154 | 431 | memcpy(b->buffer, suppliedBuff->buffer, suppliedBuff->size); |
Azure.IoT Build | 0:fa2de1b79154 | 432 | b->size = suppliedBuff->size; |
Azure.IoT Build | 0:fa2de1b79154 | 433 | result = (BUFFER_HANDLE)b; |
Azure.IoT Build | 0:fa2de1b79154 | 434 | } |
Azure.IoT Build | 0:fa2de1b79154 | 435 | } |
Azure.IoT Build | 0:fa2de1b79154 | 436 | else |
Azure.IoT Build | 0:fa2de1b79154 | 437 | { |
Azure.IoT Build | 0:fa2de1b79154 | 438 | result = NULL; |
Azure.IoT Build | 0:fa2de1b79154 | 439 | } |
Azure.IoT Build | 0:fa2de1b79154 | 440 | } |
Azure.IoT Build | 0:fa2de1b79154 | 441 | return result; |
Azure.IoT Build | 0:fa2de1b79154 | 442 | } |