C 环形缓冲的实现: 音频采集后续小实验后续小实验RING/CIRCULAR BUFFER 附送源码 圆形缓冲区(circular buffer),循环缓冲区(cyclic buffer),环形缓冲区(ring buffer),是一种用于表示一个固定尺寸、头尾相连的缓冲区的数据结构,适合缓存实时数据流。 环形缓存放置在20041到20048这8个连续的存储位置。图A示来自输入的8...
/// Returns 0 on success, -1 if buffer is full int circular_buf_put2(cbuf_handle_t cbuf, uint8_t data); /// Retrieve a value from the buffer /// Returns 0 on success, -1 if the buffer is empty int circular_buf_get(cbuf_handle_t cbuf, uint8_t * data); /// Returns true...
///Pass in a storage buffer and size///Returns a circular buffer handlecbuf_handle_t circular_buf_init(uint8_t*buffer, size_t size);///Free a circular buffer structure.///Does not free data buffer; owner is responsible for thatvoidcircular_buf_free(cbuf_handle_t cbuf);///Reset the ...
1)head index 只能指向未被写入的位置。 A‘head’ index - the point at which the producer inserts items into the buffer. 2)tail index 可以指向任何位置。 A‘tail’ index - the point at which the consumer finds the next item in the buffer. 3)队列满:当 head index 前进一个 单位后等于 ta...
In the following examples, we implement a circular array using a C-style array and construct an insertion function so that the full buffer will not start overwriting old data. The CircularArray class includes 5 data members, three of which have T* type, and these are used to store the add...
Small and simple C library implementing bytecircular (aka ring) buffer. Requirements CMake 2.8.8 GCC 4.7.1 GLib 2.32.4 (optional, for unit tests) Different versions haven't been tested but might work as well. Documentation Seeringbuf.hfor reference, function names are self-describing (I hop...
the "mirrored" buffer is then placed beside the buffer. When the user polls the item it doesn't matter if the item crosses the buffer's boundary: Compatibility This only works on UNIX systems. Windows support existed in d10238600a82de32fe1cb01bec8667d3a67e382c but was removed. This is be...
(If a non-circular buffer were used then it would be necessary to shift all elements when one is consumed.) In other words, the circular buffer is well-suited as a FIFO buffer while a standard, non-circular buffer is well suited as a LIFO buffer. Circular buffering makes a good ...
According to the invention, first, a number of virtual entry positions, which is at least equal to the number of real entry positions in the buffer, is added to the non-occupied part of the buffer. In a second step, each entry which fulfills the given condition blocks a certain number ...
A Circular Buffer in C Once we build a circular buffer, we can use it in a variety of ways. We will use an array as the buffer: #define CMAX 6 /* filter order */ int circ[CMAX]; /* circular buffer */ int pos; /* position of current sample */ The variable pos holds the pos...