1.2.4.4.10 SYS_CONSOLE_ReadCountGet Function

ssize_t SYS_CONSOLE_ReadCountGet(const SYS_CONSOLE_HANDLE handle)

Returns number of unread bytes available in the receive buffer.

This function indicates the number of unread bytes in the receive buffer.

The SYS_CONSOLE_Initialize function should have been called before calling this function.

The return value indicates the number of bytes of unread data available in the receive buffer. Returns -1 in case of any error.

ssize_t nUnreadBytes;
ssize_t nBytesRead;
char myBuffer[100];
SYS_CONSOLE_HANDLE myConsoleHandle;

// Get the number of bytes available in the receive buffer.
nUnreadBytes = SYS_CONSOLE_ReadCountGet(myConsoleHandle);

if (nUnreadBytes == -1)
{
    // Handle error
}
// Read the available data into the application buffer.
SYS_CONSOLE_Read( myConsoleHandle, 0, myBuffer, nUnreadBytes );

None.