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adding a nonblocking mariadb client device

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hyung-hwan
2020-06-11 17:20:09 +00:00
parent eea395e130
commit d067093082
15 changed files with 292 additions and 124 deletions
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13
mio/lib/mio.c
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@ -1042,7 +1042,15 @@ int mio_dev_watch (mio_dev_t* dev, mio_dev_watch_cmd_t cmd, int events)
* it's different from not hanving MIO_DEV_CAP_IN and MIO_DEV_CAP_OUT.
* a non-virtual device without the capabilities still gets attention
* of the system multiplexer for hangup and error. */
if (dev->dev_cap & MIO_DEV_CAP_VIRTUAL) return 0;
if (dev->dev_cap & MIO_DEV_CAP_VIRTUAL)
{
/* UGLY HACK - you may start a device with VIRTUAL set upon creation when START is attempted.
* later, if you mask off VIRTUAL, you may perform normal IO and call
* mio_dev_watch() with UPDATE. if SUSPENDED is set, UPDATE works */
if (cmd == MIO_DEV_WATCH_START) dev->dev_cap |= MIO_DEV_CAP_WATCH_SUSPENDED;
/* END UGLY HACK */
return 0;
}
/*ev.data.ptr = dev;*/
dev_cap = dev->dev_cap & ~(DEV_CAP_ALL_WATCHED | MIO_DEV_CAP_WATCH_SUSPENDED); /* UGLY to use MIO_DEV_CAP_WATCH_SUSPENDED here */
@ -1064,7 +1072,7 @@ int mio_dev_watch (mio_dev_t* dev, mio_dev_watch_cmd_t cmd, int events)
* output watching is requested only if there're enqueued data for writing.
* if you want to enable input watching while renewing, call this function like this.
* mio_dev_wtach (dev, MIO_DEV_WATCH_RENEW, MIO_DEV_EVENT_IN);
* if you want input whatching disabled while renewing, call this function like this.
* if you want input watching disabled while renewing, call this function like this.
* mio_dev_wtach (dev, MIO_DEV_WATCH_RENEW, 0); */
if (MIO_WQ_IS_EMPTY(&dev->wq)) events &= ~MIO_DEV_EVENT_OUT;
else events |= MIO_DEV_EVENT_OUT;
@ -1091,7 +1099,6 @@ int mio_dev_watch (mio_dev_t* dev, mio_dev_watch_cmd_t cmd, int events)
/* this function honors MIO_DEV_EVENT_IN and MIO_DEV_EVENT_OUT only
* as valid input event bits. it intends to provide simple abstraction
* by reducing the variety of event bits that the caller has to handle. */
if ((events & MIO_DEV_EVENT_IN) && !(dev->dev_cap & (MIO_DEV_CAP_IN_CLOSED | MIO_DEV_CAP_IN_DISABLED)))
{
if (dev->dev_cap & MIO_DEV_CAP_IN)