tqueue.h - plan9port - [fork] Plan 9 from user space
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       tqueue.h (299B)
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            1 enum
            2 {
            3         MAXQ = 256
            4 };
            5 
            6 typedef struct Queue Queue;
            7 struct Queue
            8 {
            9         struct {
           10                 Block *db;
           11                 u32int bno;
           12         } el[MAXQ];
           13         int ri, wi, nel, closed;
           14 
           15         QLock lk;
           16         Rendez r;
           17 };
           18 
           19 Queue        *qalloc(void);
           20 void        qclose(Queue*);
           21 Block        *qread(Queue*, u32int*);
           22 void        qwrite(Queue*, Block*, u32int);
           23 void        qfree(Queue*);