75 lines
1.3 KiB
C++
75 lines
1.3 KiB
C++
/*
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* OutputChannel.cpp
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* 2Term
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*
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* Created by Kelvin Sherlock on 7/7/2010.
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* Copyright 2010 __MyCompanyName__. All rights reserved.
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*
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*/
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#include "OutputChannel.h"
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#include <unistd.h>
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#include <fcntl.h>
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#include <cstring>
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#include <cerrno>
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bool OutputChannel::write(uint8_t c)
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{
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return write(&c, 1);
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}
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bool OutputChannel::write(const char *str)
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{
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return write(str, std::strlen(str));
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}
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bool OutputChannel::write(const void *vp, size_t size)
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{
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if (!size) return true;
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for (unsigned i = 0; ;)
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{
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ssize_t s = ::write(_fd, vp, size);
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if (s < 0)
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{
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switch (errno)
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{
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case EAGAIN:
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case EINTR:
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if (++i < 3) break;
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default:
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_error = errno;
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// throw?
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return false;
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}
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}
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else if (size == s)
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{
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return true;
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}
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else if (s == 0)
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{
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if (++i == 3)
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{
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_error = EIO;
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return false;
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}
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}
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else
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{
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size -= s;
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vp = (uint8_t *)vp + s;
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if (size == 0) return true;
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}
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}
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return false;
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} |