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ring_buffer: add fill() function

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This commit is contained in:
Martin Piatka
2021-09-20 14:28:22 +02:00
parent b1bc866d7f
commit b065dd8117
2 changed files with 22 additions and 0 deletions
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20
src/utils/ring_buffer.cpp
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@@ -228,6 +228,26 @@ int ring_get_size(struct ring_buffer * ring) {
return ring->len;
}
void ring_fill(struct ring_buffer *ring, int c, int size){
void *ptr1;
int size1;
void *ptr2;
int size2;
if(!ring_get_write_regions(ring, size, &ptr1, &size1, &ptr2, &size2)){
fprintf(stderr, "Warning: too long write request for ring buffer (%d B)!!!\n", size);
return;
}
memset(ptr1, c, size1);
if(ptr2){
memset(ptr2, c, size2);
}
if(ring_advance_write_idx(ring, size)) {
fprintf(stderr, "Warning: ring buffer overflow!!!\n");
}
}
/* ring_get_current_size and ring_get_available_write_size can be called from
* both reader and writer threads.
*

2
src/utils/ring_buffer.h
View File

@@ -137,6 +137,8 @@ int ring_get_write_regions(struct ring_buffer *ring, int requested_len,
*/
bool ring_advance_write_idx(struct ring_buffer *ring, int amount);
void ring_fill(struct ring_buffer *ring, int c, int size);
extern struct audio_buffer_api ring_buffer_fns;
#ifdef __cplusplus