To avoid constantly copying data within the buffer, we will move the head of the buffer in time. The buffer points to the location at which the next sample will be placed; every time we add a sample, we automatically overwrite the oldest sample, which is the one that needs to be ...
The circular buffer acts like a first-in/first-out (FIFO) buffer, but each datum on the buffer does not have to be moved. Fig. 14.7 gives a simple illustration of the 2-bit circular buffer. In the figure, there is data flow to the ADC (a, b, c, d, e, f, g,…) and a ci...
*/ unsigned long head = smp_load_acquire(buffer->head); unsigned long tail = buffer->tail; if (CIRC_CNT(head, tail, buffer->size) >= 1) { /* extract one item from the buffer */ struct item *item = buffer[tail]; consume_item(item); /* Finish reading descriptor before inc...
An operation on a socket could not be performed because the system lacked sufficient buffer space or because a queue was full. An Unable to write data to the transport connectionestablished connection was aborted by the software in your host machine An unhandled exception occurred during the execut...
{ /* insert one item into the buffer */ struct item *item = buffer[head]; produce_item(item); smp_wmb(); /* commit the item before incrementing the head */ buffer->head = (head + 1) & (buffer->size - 1); /* wake_up() will make sure that the head is committed b...
In order to distinguish both configurations, another atomic integer C is introduced, to be increased—or decreased—whenever head—or tail—start a new round. When the buffer is empty, head and tail have performed the same number of rounds, and C=0. When the buffer is full, head is one...
beginning at the head (delete) pointer and moving toward the tail (insert) pointer, that has the particular attribute. In the shifting buffer, the head is fixed and thus the logic for the find first function is straightforward. On the other hand, in the circular buffer, the buffer is effe...
1. A method to maintain data structures for scheduling, the data structures comprising an array comprising information for available queues of ports and circular buffers representing nonempty port queues of the available port queues according to classes of service, each circular buffer comprising a link...
buffer array 274 between the head 216 and tail 218, including the head 216 entry but not the tail 218 entry, correspond to the ROPs in the processor's current speculative state. The head pointer 216 designates a first entry of the reorder buffer array 274, which functions as a FIFO ...
The output buffer to the decoder has the corresponding head-end entry left blank or zeroed out, whereupon the decoder performs its native response to the absent frame.Thus, each cell A, B, C in the queue egr_sched_cell points to a packet that still needs to go through the decode ...