libc/semaphore: Add nxsem_getvalue() which is identical to sem_getvalue() except that it never modifies the errno variable. Changed all references to sem_getvalue in the OS to nxsem_getvalue().
sched/semaphore: Rename all internal private functions from sem_xyz to nxsem_xyz. The sem_ prefix is (will be) reserved only for the application semaphore interfaces.
libc/semaphore: Add nxsem_init() which is identical to sem_init() except that it never modifies the errno variable. Changed all references to sem_init in the OS to nxsem_init().
sched/semaphore: Rename sem_tickwait() to nxsem_tickwait() so that it is clear this is an internal OS function.
sched/semaphoate: Rename sem_reset() to nxsem_reset() so that it is clear this is an internal OS function.
03/11: CC3000 driver was getting stuck at recv() when remote host closed connection and application tried to read data from remotely shutdown socket. This patch adds proper handling for remotely closed socket event.
07/11: Socket state initialization was done in 'register', while it should be initialized in 'open' and deinitialized in 'close'. Old way caused problems when device is closed, power-cycled and then reopened as old socket state was left enabled.
08/11: Select thread was getting stuck after 'close, power-cycle, reopen', since selectsem was not properly setup and cleaned up.
09/11 'maxFD' was not properly reset in select worker and not checked for before calling cc3000_select().
10/11: After wlan_stop()/cc3000_close(), irqsem was left with count '-1'. Therefore on next wlan_start()/cc3000_open(), initial value for irqsem was wrong. Additional repeated wlan_start()/wlan_stop() decreased irqsem value further. Obviously this causes driver not to function correctly and freeze.
Patch moves initialization and destruction of waitsem, irqsem and readysem to cc3000_open/cc3000_close.
All are: Signed-off-by: Jussi Kivilinna <jussi.kivilinna@haltian.com>
