Cross Reference: /external/srec/shared/src/CircularBuffer.c

Lines Matching refs:buffer
34 ESR_ReturnCode CircularBufferCreate(size_t capacity, const LCHAR* mtag, CircularBuffer** buffer)
37   if (buffer == NULL || capacity <= 0)
45   *buffer = Interface;
50 int CircularBufferRead(CircularBuffer* buffer, void* data, size_t bufSize)
55   if (buffer == NULL || (data == NULL && bufSize > 0))
58   if (buffer->size < bufSize)
59     bufSize = buffer->size;
64   bufferData = ((unsigned char *) buffer) + sizeof(CircularBuffer);
66   if (buffer->readIdx >= buffer->writeIdx)
68     nbRead = buffer->capacity - buffer-> readIdx;
71     memcpy(data, bufferData + buffer->readIdx, nbRead);
72     buffer->size -= nbRead;
73     buffer->readIdx += nbRead;
74     if (buffer->readIdx == buffer->capacity)
75       buffer->readIdx = 0;
81     memcpy(((unsigned char *) data) + nbRead, bufferData + buffer->readIdx, toRead);
82     buffer->size -= toRead;
83     buffer->readIdx += toRead;
89 int CircularBufferSkip(CircularBuffer* buffer, size_t bufSize)
91   if ( buffer == NULL )
94   if (buffer->size < bufSize)
95     bufSize = buffer->size;
100   buffer->readIdx += bufSize;
101   if (buffer->readIdx >= buffer->capacity)
102     buffer->readIdx -= buffer->capacity;
104   buffer->size -= bufSize;
109 int CircularBufferWrite(CircularBuffer* buffer, const void *data, size_t bufSize)
113   size_t available = buffer->capacity - buffer->size;
125   bufferData = ((unsigned char*) buffer) + sizeof(CircularBuffer);
127   if (buffer->writeIdx >= buffer->readIdx)
129     nbWritten = buffer->capacity - buffer->writeIdx;
131     memcpy(bufferData + buffer->writeIdx, data, nbWritten);
132     buffer->size += nbWritten;
133     buffer->writeIdx += nbWritten;
134     if (buffer->writeIdx == buffer->capacity)
135       buffer->writeIdx = 0;
141     memcpy(bufferData + buffer->writeIdx, ((unsigned char*) data) + nbWritten, toWrite);
142     buffer->size += toWrite;
143     buffer->writeIdx += toWrite;
149 int CircularBufferUnwrite(CircularBuffer* buffer, size_t amount)
151   size_t available = buffer->capacity - buffer->size;
155   buffer->size -= amount;