cancel

Cancels any current call to delay for the specified thread.

Library:LibC

Service:General C Services

Syntax

  #include <unistd.h> 
   
  int cancel (
     int   t_id);

t_id: (IN) Specifies the target thread, exactly as returned by the function that created the thread.

If successful, returns 0. Otherwise, returns -1 and sets errno to one of the following:

Decimal	Constant	Description
77	ESRCH	The specified thread does not exist.
78	ECANCELED	The operation is invalid because the target thread has never entered a delay or sleep state.