NAME

getbuf − obtain a buffer from a buffer pool

SYNOPSIS

char ∗getbuf(poolid)
int poolid;

DESCRIPTION

Getbuf obtains a free buffer from the pool given by argument poolid, and returns a pointer to the first word of the buffer.  If all buffers in the specified pool are in use, the calling process will be blocked until a buffer becomes available.  If the argument poolid does not specify a valid pool, getbuf returns SYSERR. 

SEE ALSO

freebuf(2), getmem(2), getstk(2), freemem(2), freestk(2)

December 01, 1986  —  Xinu Programmer’s Manual