granicus.if.org Git - postgresql/blob - src/include/libpq/pqsignal.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * pqsignal.h
   4  *        Backend signal(2) support (see also src/port/pqsignal.c)
   5  *
   6  * Portions Copyright (c) 1996-2013, PostgreSQL Global Development Group
   7  * Portions Copyright (c) 1994, Regents of the University of California
   8  *
   9  * src/include/libpq/pqsignal.h
  10  *
  11  *-------------------------------------------------------------------------
  12  */
  13 #ifndef PQSIGNAL_H
  14 #define PQSIGNAL_H
  15
  16 #include <signal.h>
  17
  18 #ifdef HAVE_SIGPROCMASK
  19 extern sigset_t UnBlockSig,
  20                         BlockSig,
  21                         StartupBlockSig;
  22
  23 #define PG_SETMASK(mask)        sigprocmask(SIG_SETMASK, mask, NULL)
  24 #else                                                   /* not HAVE_SIGPROCMASK */
  25 extern int      UnBlockSig,
  26                         BlockSig,
  27                         StartupBlockSig;
  28
  29 #ifndef WIN32
  30 #define PG_SETMASK(mask)        sigsetmask(*((int*)(mask)))
  31 #else
  32 #define PG_SETMASK(mask)                pqsigsetmask(*((int*)(mask)))
  33 int                     pqsigsetmask(int mask);
  34 #endif
  35
  36 #define sigaddset(set, signum)  (*(set) |= (sigmask(signum)))
  37 #define sigdelset(set, signum)  (*(set) &= ~(sigmask(signum)))
  38 #endif   /* not HAVE_SIGPROCMASK */
  39
  40 extern void pqinitmask(void);
  41
  42 #endif   /* PQSIGNAL_H */