chap4

bac2/os/chap4/RingBuffer.h

@@ -0,0 +1,27 @@
+#pragma once
+#include <pthread.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdarg.h>
+
+#define rb_init(size, type)\
+	{(size),\
+	0, 0, false, false,\
+	type,\
+	malloc(sizeof(int)*(size)),\
+	PTHREAD_MUTEX_INITIALIZER};
+
+#define rb_free(rb) free(rb.data)
+
+typedef struct rb{
+	size_t size;
+	size_t w_pos, r_pos;
+	bool filled;
+	bool error;
+	enum {DROP, WAIT} type;
+	int* data;
+	pthread_mutex_t m;
+} rb_t;
+
+void rb_push(rb_t*, int);
+int rb_pop(rb_t*);