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{%TARGET=darwin,haiku,linux,freebsd,netbsd,openbsd,solaris,aix,android }
{$mode fpc}
uses
baseunix;
const
testbyte = '!';
var
pollfds: pollfd;
fds: array[0..1] of cint;
ret: cint;
x: char;
begin
fppipe(fds);
pollfds.fd := fds[0];
pollfds.events := POLLIN;
pollfds.revents := 0;
ret := fppoll(@pollfds, 1, 10);
if ret <> 0 then
begin
writeln('poll returned ', ret, ' (expected 0 = timeout), errno=', errno);
halt(1);
end;
x := testbyte;
ret := fpwrite(fds[1], x, 1);
if ret <> 1 then
begin
writeln('write returned ', ret, ' (expected 1 byte), errno=', errno);
halt(2);
end;
ret := fppoll(@pollfds, 1, 10);
if ret <> 1 then
begin
writeln('poll returned ', ret, ' (expected 1 = data ready), errno=', errno);
halt(3);
end;
if (pollfds.revents and POLLIN) = 0 then
begin
writeln('poll did not set POLLIN');
halt(4);
end;
x := #0;
ret := fpread(fds[0], @x, 1);
if ret <> 1 then
begin
writeln('read returned ', ret, ' (expected 1 byte), errno=', errno);
halt(5);
end;
if x <> testbyte then
begin
writeln('test byte is ''', x, ''' (expected ''', testbyte, ''')');
halt(6);
end;
ret := fppoll(@pollfds, 1, 10);
if ret <> 0 then
begin
writeln('poll returned ', ret, ' (expected 0 = timeout), errno=', errno);
halt(7);
end;
fpclose(fds[0]);
fpclose(fds[1]);
end.
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