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max(9f) [osx man page]

max(9F)                                                    Kernel Functions for Drivers                                                    max(9F)

max - return the larger of two integers SYNOPSIS
#include <sys/ddi.h> int max(int int1, int int2); INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI). PARAMETERS
int1 The first integer. int2 The second integer. DESCRIPTION
max() compares two signed integers and returns the larger of the two. RETURN VALUES
The larger of the two numbers. CONTEXT
max() can be called from user or interrupt context. SEE ALSO
min(9F) Writing Device Drivers SunOS 5.10 11 Apr 1991 max(9F)

Check Out this Related Man Page

OTHERQ(9F)						   Kernel Functions for Drivers 						OTHERQ(9F)

OTHERQ, otherq - get pointer to queue's partner queue SYNOPSIS
#include <sys/stream.h> #include <sys/ddi.h> queue_t *OTHERQ(queue_t *q); INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI). PARAMETERS
q Pointer to the queue. DESCRIPTION
The OTHERQ() function returns a pointer to the other of the two queue structures that make up a STREAMS module or driver. If q points to the read queue the write queue will be returned, and vice versa. RETURN VALUES
OTHERQ() returns a pointer to a queue's partner. CONTEXT
OTHERQ() can be called from user or interrupt context. EXAMPLES
Example 1: Setting Queues This routine sets the minimum packet size, the maximum packet size, the high water mark, and the low water mark for the read and write queues of a given module or driver. It is passed either one of the queues. This could be used if a module or driver wished to update its queue parameters dynamically. 1 void 2 set_q_params(q, min, max, hi, lo) 3 queue_t *q; 4 short min; 5 short max; 6 ushort_t hi; 7 ushort_t lo; 8 { 9 q->q_minpsz = min; 10 q->q_maxpsz = max; 11 q->q_hiwat = hi; 12 q->q_lowat = lo; 13 OTHERQ(q)->q_minpsz = min; 14 OTHERQ(q)->q_maxpsz = max; 15 OTHERQ(q)->q_hiwat = hi; 16 OTHERQ(q)->q_lowat = lo; 17 } SEE ALSO
Writing Device Drivers STREAMS Programming Guide SunOS 5.10 11 Apr 1991 OTHERQ(9F)
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