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pqsignal.h File Reference

#include <signal.h>

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Functions

void pqinitmask (void)

Variables

PGDLLIMPORT sigset_t UnBlockSig

PGDLLIMPORT sigset_t BlockSig

PGDLLIMPORT sigset_t StartupBlockSig

Function Documentation

◆ pqinitmask()

void pqinitmask ( void )

Definition at line 41 of file pqsignal.c.

42{

43 sigemptyset(&UnBlockSig);

44

45 /* Note: InitializeWaitEventSupport() modifies UnBlockSig. */

46

47 /* First set all signals, then clear some. */

48 sigfillset(&BlockSig);

49 sigfillset(&StartupBlockSig);

50

51 /*

52 * Unmark those signals that should never be blocked. Some of these signal

53 * names don't exist on all platforms. Most do, but might as well ifdef

54 * them all for consistency...

55 */

56#ifdef SIGTRAP

57 sigdelset(&BlockSig, SIGTRAP);

58 sigdelset(&StartupBlockSig, SIGTRAP);

59#endif

60#ifdef SIGABRT

61 sigdelset(&BlockSig, SIGABRT);

62 sigdelset(&StartupBlockSig, SIGABRT);

63#endif

64#ifdef SIGILL

65 sigdelset(&BlockSig, SIGILL);

66 sigdelset(&StartupBlockSig, SIGILL);

67#endif

68#ifdef SIGFPE

69 sigdelset(&BlockSig, SIGFPE);

70 sigdelset(&StartupBlockSig, SIGFPE);

71#endif

72#ifdef SIGSEGV

73 sigdelset(&BlockSig, SIGSEGV);

74 sigdelset(&StartupBlockSig, SIGSEGV);

75#endif

76#ifdef SIGBUS

77 sigdelset(&BlockSig, SIGBUS);

78 sigdelset(&StartupBlockSig, SIGBUS);

79#endif

80#ifdef SIGSYS

81 sigdelset(&BlockSig, SIGSYS);

82 sigdelset(&StartupBlockSig, SIGSYS);

83#endif

84#ifdef SIGCONT

85 sigdelset(&BlockSig, SIGCONT);

86 sigdelset(&StartupBlockSig, SIGCONT);

87#endif

88

89/* Signals unique to startup */

90#ifdef SIGQUIT

91 sigdelset(&StartupBlockSig, SIGQUIT);

92#endif

93#ifdef SIGTERM

94 sigdelset(&StartupBlockSig, SIGTERM);

95#endif

96#ifdef SIGALRM

97 sigdelset(&StartupBlockSig, SIGALRM);

98#endif

99}

StartupBlockSig

sigset_t StartupBlockSig

Definition: pqsignal.c:24

UnBlockSig

sigset_t UnBlockSig

Definition: pqsignal.c:22

BlockSig

sigset_t BlockSig

Definition: pqsignal.c:23

SIGCONT

#define SIGCONT

Definition: win32_port.h:167

SIGQUIT

#define SIGQUIT

Definition: win32_port.h:159

SIGTRAP

#define SIGTRAP

Definition: win32_port.h:160

SIGALRM

#define SIGALRM

Definition: win32_port.h:164

SIGABRT

#define SIGABRT

Definition: win32_port.h:161

References BlockSig, SIGABRT, SIGALRM, SIGCONT, SIGQUIT, SIGTRAP, StartupBlockSig, and UnBlockSig.

Referenced by InitPostmasterChild(), InitStandaloneProcess(), and PostmasterMain().

Variable Documentation

◆ BlockSig

PGDLLIMPORT sigset_t BlockSig

extern

Definition at line 23 of file pqsignal.c.

Referenced by BackendInitialize(), BackgroundWorkerBlockSignals(), bgworker_die(), dsm_impl_posix_resize(), fork_process(), InitPostmasterChild(), InitStandaloneProcess(), PostmasterMain(), pqinitmask(), and quickdie().

◆ StartupBlockSig

PGDLLIMPORT sigset_t StartupBlockSig

extern

Definition at line 24 of file pqsignal.c.

Referenced by BackendInitialize(), and pqinitmask().

◆ UnBlockSig

PGDLLIMPORT sigset_t UnBlockSig

extern

Definition at line 22 of file pqsignal.c.

Referenced by AbortSubTransaction(), AbortTransaction(), AutoVacLauncherMain(), AutoVacWorkerMain(), BackgroundWorkerUnblockSignals(), BackgroundWriterMain(), CheckpointerMain(), InitializeWaitEventSupport(), IoWorkerMain(), PgArchiverMain(), PostgresMain(), PostmasterMain(), pqinitmask(), ReplSlotSyncWorkerMain(), StartupProcessMain(), SysLoggerMain(), WalReceiverMain(), WalSummarizerMain(), and WalWriterMain().