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 adjmsg(9r) -- STREAMS: Removes the specified number of bytes from a message
    The adjmsg interface removes a specified number of bytes from a message. The absolute value of the len_to_trim argument specifies how many bytes that adjmsg removes. If the number of bytes passed to l...
 allocb(9r) -- STREAMS: Allocates a message block
    The allocb interface attempts to allocate a STREAMS message block. Buffer allocation fails only when the system is out of memory. If no buffer is available, you can call the bufcall interface, which h...
 assert_wait_mesg(9r) -- General: Asserts that the current kernel thread is about to block (sleep)
    The assert_wait_mesgroutine asserts that the current kernel thread is about to block (sleep) until the specified event occurs. This routine sets a thread wait bit in the pointer to the thread structur...
 backq(9r) -- STREAMS: Gets a pointer to the previous queue
    The backq interface returns a pointer to the queue preceding the current queue (the current_queue argument). If the current queue is a read queue, backq returns a pointer to the queue downstream from ...
 BADADDR(9r) -- General: Probes the address during device autoconfiguration
    The BADADDR routine generates a call to a machine-dependent routine that does a read access check of the data at the supplied address and dismisses any machine check exception that may result from the...
 bcanput(9r) -- STREAMS: Tests for flow control in a specified priority band
    The bcanput interface, like the canput interface, searches through the stream (starting at the message queue identified by the message_queue argument) until it finds a queue that contains a service in...
 bcmp(9r) -- General: Compares two byte strings
    The bcmp routine compares byte string b1 to byte string b2. The routine compares exactly n bytes. No check is made for null bytes.
 bcopy(9r) -- General: Copies a series of bytes with a specified limit
    The bcopy routine copies n bytes from string b1 to buffer b2. No check is made for null bytes. The copy is nondestructive, that is, the address ranges of b1 and b2 can overlap.
 biodone(9r) -- General: Indicates that block I/O is complete
    The biodone routine is called after an I/O operation to mark the buf structure as completed. It sets the b_flags member to B_SWAP, B_UBC, or B_ASYNC to indicate the type of I/O operation that has comp...
 blkclr(9r) -- General: Zero a block of memory
    The blkclr routine zeros n bytes of memory beginning at the address specified by b1.
 brelse(9r) -- General: Deallocates a buf structure
    The brelse routine deallocates a buf structure that was previously allocated by the getnewbuf routine. The buf structure contains information describing an I/O request. Device drivers call the brelse ...
 btop(9r) -- General: Converts bytes to number of pages
    The btop routine converts the specified byte address to the number of pages.
 buf(9s) -- General: Describes arbitrary I/O
    The buf data structure describes arbitrary I/O, but is usually associated with block I/O and physio. A systemwide pool of buf data structures exists for block I/O; however, many kernel modules that ar...
 bufcall(9r) -- STREAMS: Gets a buffer when allocb fails
    The bufcall interface serves as a timeout call of indeterminate length. When a buffer allocation request fails, you can use bufcall to schedule the interface passed to the function argument to be call...
 BUF_LOCK(9r) -- General: Locks the specified I/O buffer
    The BUF_LOCK routine locks the specified I/O buffer. The routine masks all disk and tape controller interrupts (by calling the splbio routine). It sets the mutual exclusion buffer lock member, b_lock,...
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