1buffer_init(3)             Library Functions Manual             buffer_init(3)
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NAME

6       buffer_init - initialize buffer structure
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SYNTAX

9       #include <buffer.h>
10
11       void buffer_init(buffer &b,
12                       ssize_t (*op)(int,char*,size_t),
13                       int fd, char* y, size_t ylen);
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DESCRIPTION

16       buffer_init prepares b to store a string in y[0], y[1], ..., y[ylen-1].
17       Initially the string is empty.
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19       buffer_init also prepares b to use the read/write  operation  specified
20       by op and fd.
21
22       You can use
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24         buffer b = BUFFER_INIT(op,fd,y,ylen);
25
26       to initialize b statically if op, fd, y, and ylen are compile-time con‐
27       stants.
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29       You can call buffer_init again at any time. Note that this discards the
30       currently buffered string.
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EXAMPLE

33         #include <buffer.h>
34         #include <open.h>
35
36         char buf[4096];
37         int fd=open_read("/etc/services");
38         buffer input;
39
40         if (fd>=0) {
41           char x;
42           buffer_init(&input,read,fd,buf,sizeof buf);
43           while (buffer_get(&input,&x,1)==1) {
44             buffer_put(buffer_1,&x,1);
45             if (x=='\n') break;
46           }
47           buffer_flush(buffer_1);
48         }
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50

SEE ALSO

52       buffer_flush(3), buffer(3)
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56                                                                buffer_init(3)
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