contentLister/inc/viewer.h File Reference

content lister - contentLister viewer IPC communication More...

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Defines
#define	SERVER_BUFFER_SIZE   1024
Functions
gboolean	viewerInit (char *viewer)
gboolean	viewerStore (char *viewer, st_ContentType_e contentType)
gboolean	viewerInstallIpcServer ()

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Detailed Description

content lister - contentLister viewer IPC communication

<File description>="">

Definition in file viewer.h.

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Define Documentation

#define SERVER_BUFFER_SIZE   1024

Definition at line 31 of file viewer.h.

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Function Documentation

gboolean viewerInit

(

char *

viewer

)

Init the communication channel with the viewer

Parameters:

viewer

unique identifier

Returns:

-

Definition at line 71 of file viewer.c.

{
    int     channel;

    channel = viewerGetChannel(viewer);

    if (channel > 0)
    {
        // create/init the channel to communicate with the userApplication
        if (erIpcStartClient(channel, &theBrowserChannel) == 0)
        {
            CL_IPCPRINTF("channel %d opened", channel);
            return TRUE;
        }
    }
    return FALSE;
}

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gboolean viewerInstallIpcServer

(

)

Start listening to viewer IPC requests

Returns:

-

Definition at line 111 of file viewer.c.

{
    int     returnValue;
    int     fd = -1;

    CL_IPCPRINTF("entry");

    returnValue = erIpcOpenServerChannel(ER_CONTENTLISTER_CHANNEL, &theServerChannel);

    if (returnValue != (-1))
    {
        fd = erIpcGetServerFd(theServerChannel);

        CL_IPCPRINTF("erIpcGetServerFd returned %d\n", fd);

        // gtk specific mechanism to monitor input file descriptor.
        returnValue = gdk_input_add(fd, GDK_INPUT_READ, viewerMessageReceived, (gpointer) theServerChannel);

        CL_IPCPRINTF("gdk_input_add returned %d", returnValue);
        return TRUE;
    }
    else
    {
        CL_ERRORPRINTF("Could not open server channel");
        return FALSE;
    }
}

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gboolean viewerStore	(	char *	viewer,
		st_ContentType_e	contentType
	)

Send IPC request to the viewer to store the filename of the currently displayed data

Parameters:

	viewer	unique identifier
	contentType	unique identifier

Returns:

-

Definition at line 89 of file viewer.c.

{
    int     channel;

    CL_IPCPRINTF("entry - %s - %d", viewer, contentType);

    channel = viewerGetChannel(viewer);

    if (channel > 0)
    {
        // request to store the location of the currently diplayed data
        // NULL where itemID used to be since in the past the last location 
        // of every item neede to be stored. Now only hte last accessed item
        // location needs to be stored so no item id is needed any more

        vwrStore(theBrowserChannel, ER_CONTENT_LISTER_UA_ID, contentType, NULL);
    }

    return TRUE;

}

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