34#define MIDIQ_MOVE(a,b,c) bcopy(b,a,c)
36#define MIDIQ_HEAD(name, type) \
42#define MIDIQ_INIT(head, buf, size) do { \
43 (head).h=(head).t=0; \
48#define MIDIQ_EMPTY(head) ((head).h == (head).t )
50#define MIDIQ_LENBASE(head) ((head).h - (head).t < 0 ? \
51 (head).h - (head).t + (head).s : \
54#define MIDIQ_FULL(head) ((head).h == -1)
55#define MIDIQ_AVAIL(head) (MIDIQ_FULL(head) ? 0 : (head).s - MIDIQ_LENBASE(head))
56#define MIDIQ_LEN(head) ((head).s - MIDIQ_AVAIL(head))
61#define MIDIQ_ENQ(head, buf, size) do { \
63 printf("#1 %p %p bytes copied %jd tran req s %d h %d t %d\n", \
64 &(head).b[(head).h], (buf), \
65 (intmax_t)(sizeof(*(head).b) * \
66 MIN( (size), (head).s - (head).h) ), \
67 (size), (head).h, (head).t); \
68 MIDIQ_MOVE(&(head).b[(head).h], (buf), sizeof(*(head).b) * MIN((size), (head).s - (head).h)); \
69 if( (head).s - (head).h < (size) ) { \
71 printf("#2 %p %p bytes copied %jd\n", (head).b, (buf) + (head).s - (head).h, (intmax_t)sizeof(*(head).b) * ((size) - (head).s + (head).h) ); \
72 MIDIQ_MOVE((head).b, (buf) + (head).s - (head).h, sizeof(*(head).b) * ((size) - (head).s + (head).h) ); \
76 if(MIDIQ_EMPTY(head)) (head).h=-1; \
78 printf("#E h %d t %d\n", (head).h, (head).t); \
81#define MIDIQ_DEQ_I(head, buf, size, move, update) do { \
82 if(MIDIQ_FULL(head)) (head).h=(head).t; \
84 printf("#1 %p %p bytes copied %jd tran req s %d h %d t %d\n", &(head).b[(head).t], (buf), (intmax_t)sizeof(*(head).b) * MIN((size), (head).s - (head).t), (size), (head).h, (head).t); \
85 if (move) MIDIQ_MOVE((buf), &(head).b[(head).t], sizeof(*(head).b) * MIN((size), (head).s - (head).t)); \
86 if( (head).s - (head).t < (size) ) { \
88 printf("#2 %p %p bytes copied %jd\n", (head).b, (buf) + (head).s - (head).t, (intmax_t)sizeof(*(head).b) * ((size) - (head).s + (head).t) ); \
89 if (move) MIDIQ_MOVE((buf) + (head).s - (head).t, (head).b, sizeof(*(head).b) * ((size) - (head).s + (head).t) ); \
95 if (MIDIQ_EMPTY(head)) (head).h=-1; \
98 printf("#E h %d t %d\n", (head).h, (head).t); \
101#define MIDIQ_SIZE(head) ((head).s)
102#define MIDIQ_CLEAR(head) ((head).h = (head).t = 0)
103#define MIDIQ_BUF(head) ((head).b)
104#define MIDIQ_DEQ(head, buf, size) MIDIQ_DEQ_I(head, buf, size, 1, 1)
105#define MIDIQ_PEEK(head, buf, size) MIDIQ_DEQ_I(head, buf, size, 1, 0)
106#define MIDIQ_POP(head, size) MIDIQ_DEQ_I(head, &head, size, 0, 1)