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/*
* Copyright (c) 2002-2013 Balabit
* Copyright (c) 1998-2013 Balázs Scheidler
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* As an additional exemption you are allowed to compile & link against the
* OpenSSL libraries as published by the OpenSSL project. See the file
* COPYING for details.
*/
#include "transport-file.h"
#include <errno.h>
#include <unistd.h>
#include <sys/uio.h>
gssize
log_transport_file_read_method(LogTransport *self, gpointer buf, gsize buflen, LogTransportAuxData *aux)
{
gint rc;
do
{
rc = read(self->fd, buf, buflen);
}
while (rc == -1 && errno == EINTR);
return rc;
}
gssize
log_transport_file_read_and_ignore_eof_method(LogTransport *self, gpointer buf, gsize buflen, LogTransportAuxData *aux)
{
gint rc;
rc = log_transport_file_read_method(self, buf, buflen, aux);
if (rc == 0)
{
rc = -1;
errno = EAGAIN;
}
return rc;
}
gssize
log_transport_file_write_method(LogTransport *self, const gpointer buf, gsize buflen)
{
gint rc;
do
{
rc = write(self->fd, buf, buflen);
}
while (rc == -1 && errno == EINTR);
return rc;
}
gssize
log_transport_file_writev_method(LogTransport *self, struct iovec *iov, gint iov_count)
{
gint rc;
do
{
rc = writev(self->fd, iov, iov_count);
}
while (rc == -1 && errno == EINTR);
return rc;
}
void
log_transport_file_init_instance(LogTransportFile *self, gint fd)
{
log_transport_init_instance(&self->super, fd);
self->super.read = log_transport_file_read_method;
self->super.write = log_transport_file_write_method;
self->super.writev = log_transport_file_writev_method;
self->super.free_fn = log_transport_free_method;
}
LogTransport *
log_transport_file_new(gint fd)
{
LogTransportFile *self = g_new0(LogTransportFile, 1);
log_transport_file_init_instance(self, fd);
return &self->super;
}
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