empire/empserver
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Remove blocking struct iop operation

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The blocking I/O option makes no sense in the server, because it
blocks the server process instead of the thread.  In fact, it's been
unused since Empire 2, except for one place, where it was used
incorrectly, and got removed in the previous commit.

Make I/O non-blocking in io_open() unconditionally.  Remove IO_NBLOCK
and io_noblocking().
This commit is contained in:
Markus Armbruster 2009-04-22 20:16:13 +02:00
parent 70bc528d0d
commit 3805548b3e
3 changed files with 13 additions and 31 deletions
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39
src/lib/empthread/io.c
View file

@ -73,27 +73,33 @@ io_init(void)
struct iop *
io_open(int fd, int flags, int bufsize, struct timeval timeout)
{
int fdfl;
struct iop *iop;
flags = flags & (IO_READ | IO_WRITE | IO_NBLOCK);
flags = flags & (IO_READ | IO_WRITE);
if ((flags & (IO_READ | IO_WRITE)) == 0)
return NULL;
fdfl = fcntl(fd, F_GETFL, 0);
if (fdfl < 0)
return NULL;
fdfl |= O_NONBLOCK;
if (fcntl(fd, F_SETFL, fdfl) < 0)
return NULL;
iop = malloc(sizeof(struct iop));
if (!iop)
return NULL;
iop->fd = fd;
iop->input = NULL;
iop->output = NULL;
iop->flags = 0;
iop->input_timeout = timeout;
iop->flags = flags;
iop->bufsize = bufsize;
iop->input_timeout = timeout;
if (flags & IO_READ)
iop->input = ioq_create(bufsize);
if (flags & IO_WRITE)
iop->output = ioq_create(bufsize);
if (flags & IO_NBLOCK)
io_noblocking(iop, 1); /* FIXME check success */
iop->flags = flags;
return iop;
}
@ -328,27 +334,6 @@ io_shutdown(struct iop *iop, int flags)
return 0;
}
int
io_noblocking(struct iop *iop, int value)
{
int flags;
flags = fcntl(iop->fd, F_GETFL, 0);
if (flags < 0)
return -1;
if (value == 0)
flags &= ~O_NONBLOCK;
else
flags |= O_NONBLOCK;
if (fcntl(iop->fd, F_SETFL, flags) < 0)
return -1;
if (value == 0)
iop->flags &= ~IO_NBLOCK;
else
iop->flags |= IO_NBLOCK;
return 0;
}
int
io_error(struct iop *iop)
{