Version: 9.0.2

gre_io_open

    gre_io_t* gre_io_open(
        const char *    io_name,  
        int             flag  
    )  

Open a Storyboard IO communication channel using a named connection.

Parameters

Parameter	Type	Description
`io_name`	`const char *`	The name of the io-channel to use.
`flag`	`int`	The mode to open the channel in. See below for possible flags.

Flags define how the connection is opened. Possible flags are:

Flag	Description
`GRE_IO_TYPE_RDONLY`	open read only, creating the channel if it doesn't exist.
`GRE_IO_TYPE_XRDONLY`	open for exclusive read, unlinking an existing channel and creating a new one.
`GRE_IO_TYPE_WRONLY`	open write only.
`GRE_IO_FLAG_NONBLOCK`	open non-blocking.

Type	Description
`gre_io_t*`	Returns a valid Storyboard IO handle or NULL if no channel can be created.

To pass multiple flags in the same aregument, just separate by a bitwise-or. i.e:

gre_io_open(THERMOSTAT_RECEIVE_CHANNEL, GRE_IO_TYPE_RDONLY | GRE_IO_FLAG_NONBLOCK);