Signal Queue API.  
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| typedef void(* | rpmsqAction_t) (int signum, siginfo_t *info, void *context) | 
|  | Default signal handler prototype.  More... 
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Signal Queue API. 
◆ RPMSQ_DFL
SIG_DFL, SIG_IGN and SIG_ERR counterparts. 
Definition at line 27 of file rpmsq.h.
 
 
◆ rpmsqAction_t
      
        
          | typedef void(* rpmsqAction_t) (int signum, siginfo_t *info, void *context) | 
      
 
Default signal handler prototype. 
- Parameters
- 
  
    | signum | signal number |  | info | (siginfo_t) signal info |  | context | signal context |  
 
Definition at line 22 of file rpmsq.h.
 
 
◆ rpmsqActivate()
      
        
          | int rpmsqActivate | ( | int | state | ) |  | 
      
 
Activate (or disable) the signal queue. 
- Parameters
- 
  
    | state | 1 to enable, 0 to disable |  
 
- Returns
- 0 on success, negative on error 
 
 
◆ rpmsqBlock()
Block or unblock (almost) all signals. 
The operation is "reference counted" so the calls can be nested, and signals are only unblocked when the reference count falls to zero. 
- Parameters
- 
  
  
- Returns
- 0 on success, -1 on error 
 
 
◆ rpmsqIsCaught()
      
        
          | int rpmsqIsCaught | ( | int | signum | ) |  | 
      
 
Test if given signal has been caught (while signals blocked). 
Similar to sigismember() but operates on internal signal queue. 
- Parameters
- 
  
  
- Returns
- 1 if caught, 0 if not and -1 on error 
 
 
◆ rpmsqPoll()
Poll for caught signals, executing their handlers. 
- Returns
- no. active signals found 
 
 
◆ rpmsqSetAction()
Set or delete a signal handler for a signal. 
- Parameters
- 
  
    | signum | signal number |  | handler | signal handler or NULL to delete |  
 
- Returns
- previous handler, RPMSQ_ERR on error