midiq.h File Reference

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Macros
#define	MIDIQ_MOVE(a, b, c)   bcopy(b,a,c)
#define	MIDIQ_HEAD(name, type)
#define	MIDIQ_INIT(head, buf, size)
#define	MIDIQ_EMPTY(head)   ((head).h == (head).t )
#define	MIDIQ_LENBASE(head)
#define	MIDIQ_FULL(head)   ((head).h == -1)
#define	MIDIQ_AVAIL(head)   (MIDIQ_FULL(head) ? 0 : (head).s - MIDIQ_LENBASE(head))
#define	MIDIQ_LEN(head)   ((head).s - MIDIQ_AVAIL(head))
#define	MIDIQ_DEBUG   0
#define	MIDIQ_ENQ(head, buf, size)
#define	MIDIQ_DEQ_I(head, buf, size, move, update)
#define	MIDIQ_SIZE(head)   ((head).s)
#define	MIDIQ_CLEAR(head)   ((head).h = (head).t = 0)
#define	MIDIQ_BUF(head)   ((head).b)
#define	MIDIQ_DEQ(head, buf, size)   MIDIQ_DEQ_I(head, buf, size, 1, 1)
#define	MIDIQ_PEEK(head, buf, size)   MIDIQ_DEQ_I(head, buf, size, 1, 0)
#define	MIDIQ_POP(head, size)   MIDIQ_DEQ_I(head, &head, size, 0, 1)

Macro Definition Documentation

MIDIQ_AVAIL

#define MIDIQ_AVAIL

(

head

)

(MIDIQ_FULL(head) ? 0 : (head).s - MIDIQ_LENBASE(head))

Definition at line 55 of file midiq.h.

MIDIQ_BUF

#define MIDIQ_BUF

(

head

)

((head).b)

Definition at line 103 of file midiq.h.

MIDIQ_CLEAR

#define MIDIQ_CLEAR

(

head

)

((head).h = (head).t = 0)

Definition at line 102 of file midiq.h.

MIDIQ_DEBUG

#define MIDIQ_DEBUG   0

Definition at line 57 of file midiq.h.

MIDIQ_DEQ

#define MIDIQ_DEQ	(		head,
			buf,
			size
	)		MIDIQ_DEQ_I(head, buf, size, 1, 1)

Definition at line 104 of file midiq.h.

MIDIQ_DEQ_I

#define MIDIQ_DEQ_I	(		head,
			buf,
			size,
			move,
			update
	)

Value:

                do {                                                                 \
                if(MIDIQ_FULL(head)) (head).h=(head).t; \
                if(MIDIQ_DEBUG)\
                        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);                       \
                if (move) MIDIQ_MOVE((buf), &(head).b[(head).t], sizeof(*(head).b) * MIN((size), (head).s - (head).t));                       \
                if( (head).s - (head).t < (size) ) {                                                    \
                        if(MIDIQ_DEBUG) \
                                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) );      \
                        if (move) MIDIQ_MOVE((buf) + (head).s - (head).t, (head).b, sizeof(*(head).b) * ((size) - (head).s + (head).t) );      \
                } \
                if (update) { \
                (head).t+=(size);                                                                         \
                (head).t%=(head).s;                                                                     \
                } else { \
                  if (MIDIQ_EMPTY(head)) (head).h=-1; \
                } \
                if(MIDIQ_DEBUG)\
                        printf("#E h %d t %d\n", (head).h, (head).t);                       \
} while (0)

Definition at line 81 of file midiq.h.

MIDIQ_EMPTY

#define MIDIQ_EMPTY

(

head

)

((head).h == (head).t )

Definition at line 48 of file midiq.h.

MIDIQ_ENQ

#define MIDIQ_ENQ	(		head,
			buf,
			size
	)

Value:

                do {                                                                 \
                if(MIDIQ_DEBUG)\
                        printf("#1 %p %p bytes copied %jd tran req s %d h %d t %d\n",            \
                               &(head).b[(head).h], (buf),                                        \
                               (intmax_t)(sizeof(*(head).b) *                                     \
                                          MIN( (size), (head).s - (head).h) ),                   \
                               (size), (head).h, (head).t);               \
                MIDIQ_MOVE(&(head).b[(head).h], (buf), sizeof(*(head).b) * MIN((size), (head).s - (head).h));                       \
                if( (head).s - (head).h < (size) ) {                                                    \
                        if(MIDIQ_DEBUG) \
                                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) );      \
                        MIDIQ_MOVE((head).b, (buf) + (head).s - (head).h, sizeof(*(head).b) * ((size) - (head).s + (head).h) );      \
                } \
                (head).h+=(size);                                                                         \
                (head).h%=(head).s;                                                                     \
                if(MIDIQ_EMPTY(head)) (head).h=-1; \
                if(MIDIQ_DEBUG)\
                        printf("#E h %d t %d\n", (head).h, (head).t);                       \
} while (0)

Definition at line 61 of file midiq.h.

MIDIQ_FULL

#define MIDIQ_FULL

(

head

)

((head).h == -1)

Definition at line 54 of file midiq.h.

MIDIQ_HEAD

#define MIDIQ_HEAD	(		name,
			type
	)

Value:

struct name {                           \
        int h, t, s;                    \
        type * b;                        \
}

Definition at line 36 of file midiq.h.

MIDIQ_INIT

#define MIDIQ_INIT	(		head,
			buf,
			size
	)

Value:

        do {                \
        (head).h=(head).t=0;                          \
        (head).s=size;                                 \
        (head).b=buf;                                  \
} while (0)

Definition at line 42 of file midiq.h.

MIDIQ_LEN

#define MIDIQ_LEN

(

head

)

((head).s - MIDIQ_AVAIL(head))

Definition at line 56 of file midiq.h.

MIDIQ_LENBASE

#define MIDIQ_LENBASE

(

head

)

Value:

                                        ((head).h - (head).t < 0 ? \
                                        (head).h - (head).t + (head).s : \
                                        (head).h - (head).t)

Definition at line 50 of file midiq.h.

MIDIQ_MOVE

#define MIDIQ_MOVE	(		a,
			b,
			c
	)		bcopy(b,a,c)

Definition at line 34 of file midiq.h.

MIDIQ_PEEK

#define MIDIQ_PEEK	(		head,
			buf,
			size
	)		MIDIQ_DEQ_I(head, buf, size, 1, 0)

Definition at line 105 of file midiq.h.

MIDIQ_POP

#define MIDIQ_POP	(		head,
			size
	)		MIDIQ_DEQ_I(head, &head, size, 0, 1)

Definition at line 106 of file midiq.h.

MIDIQ_SIZE

#define MIDIQ_SIZE

(

head

)

((head).s)

Definition at line 101 of file midiq.h.