PostgreSQL Source Code
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#include "storage/backendid.h"
Go to the source code of this file.
Functions | |
Size | ProcSignalShmemSize (void) |
void | ProcSignalShmemInit (void) |
void | ProcSignalInit (int pss_idx) |
int | SendProcSignal (pid_t pid, ProcSignalReason reason, BackendId backendId) |
uint64 | EmitProcSignalBarrier (ProcSignalBarrierType type) |
void | WaitForProcSignalBarrier (uint64 generation) |
void | ProcessProcSignalBarrier (void) |
void | procsignal_sigusr1_handler (SIGNAL_ARGS) |
Enumerator | |
---|---|
PROCSIGNAL_BARRIER_PLACEHOLDER |
Definition at line 50 of file procsignal.h.
enum ProcSignalReason |
Definition at line 30 of file procsignal.h.
uint64 EmitProcSignalBarrier | ( | ProcSignalBarrierType | type | ) |
Definition at line 332 of file procsignal.c.
References i, kill, NumProcSignalSlots, pg_atomic_add_fetch_u64(), pg_atomic_fetch_or_u32(), PROCSIG_BARRIER, ProcSignalHeader::psh_barrierGeneration, ProcSignalHeader::psh_slot, ProcSignalSlot::pss_barrierCheckMask, ProcSignalSlot::pss_pid, ProcSignalSlot::pss_signalFlags, and SIGUSR1.
void ProcessProcSignalBarrier | ( | void | ) |
Definition at line 453 of file procsignal.c.
References Assert, BARRIER_CLEAR_BIT, ConditionVariableBroadcast(), pg_atomic_exchange_u32(), pg_atomic_read_u64(), pg_atomic_write_u64(), PG_CATCH, PG_END_TRY, PG_RE_THROW, pg_rightmost_one_pos32(), PG_TRY, ProcessBarrierPlaceholder(), PROCSIGNAL_BARRIER_PLACEHOLDER, ProcSignalBarrierPending, ProcSignalHeader::psh_barrierGeneration, ProcSignalSlot::pss_barrierCheckMask, ProcSignalSlot::pss_barrierCV, ProcSignalSlot::pss_barrierGeneration, ResetProcSignalBarrierBits(), success, and generate_unaccent_rules::type.
Referenced by BufferSync(), CheckpointWriteDelay(), HandleAutoVacLauncherInterrupts(), HandleCheckpointerInterrupts(), HandleMainLoopInterrupts(), HandleStartupProcInterrupts(), HandleWalWriterInterrupts(), and ProcessInterrupts().
void procsignal_sigusr1_handler | ( | SIGNAL_ARGS | ) |
Definition at line 642 of file procsignal.c.
References CheckProcSignal(), HandleCatchupInterrupt(), HandleLogMemoryContextInterrupt(), HandleNotifyInterrupt(), HandleParallelMessageInterrupt(), HandleProcSignalBarrierInterrupt(), HandleWalSndInitStopping(), MyLatch, PROCSIG_BARRIER, PROCSIG_CATCHUP_INTERRUPT, PROCSIG_LOG_MEMORY_CONTEXT, PROCSIG_NOTIFY_INTERRUPT, PROCSIG_PARALLEL_MESSAGE, PROCSIG_RECOVERY_CONFLICT_BUFFERPIN, PROCSIG_RECOVERY_CONFLICT_DATABASE, PROCSIG_RECOVERY_CONFLICT_LOCK, PROCSIG_RECOVERY_CONFLICT_SNAPSHOT, PROCSIG_RECOVERY_CONFLICT_STARTUP_DEADLOCK, PROCSIG_RECOVERY_CONFLICT_TABLESPACE, PROCSIG_WALSND_INIT_STOPPING, RecoveryConflictInterrupt(), and SetLatch().
Referenced by autoprewarm_main(), AutoVacLauncherMain(), AutoVacWorkerMain(), BackgroundWriterMain(), CheckpointerMain(), PgArchiverMain(), PostgresMain(), StartBackgroundWorker(), StartupProcessMain(), WalReceiverMain(), WalSndSignals(), and WalWriterMain().
void ProcSignalInit | ( | int | pss_idx | ) |
Definition at line 161 of file procsignal.c.
References Assert, CleanupProcSignalState(), elog, Int32GetDatum, LOG, MemSet, MyProcPid, NUM_PROCSIGNALS, NumProcSignalSlots, on_shmem_exit(), pg_atomic_read_u64(), pg_atomic_write_u32(), pg_atomic_write_u64(), pg_memory_barrier, ProcSignalHeader::psh_barrierGeneration, ProcSignalHeader::psh_slot, ProcSignalSlot::pss_barrierCheckMask, ProcSignalSlot::pss_barrierGeneration, ProcSignalSlot::pss_pid, and ProcSignalSlot::pss_signalFlags.
Referenced by AuxiliaryProcessMain(), and InitPostgres().
void ProcSignalShmemInit | ( | void | ) |
Definition at line 125 of file procsignal.c.
References ConditionVariableInit(), i, MemSet, NumProcSignalSlots, pg_atomic_init_u32(), pg_atomic_init_u64(), PG_UINT64_MAX, ProcSignalShmemSize(), ProcSignalHeader::psh_barrierGeneration, ProcSignalHeader::psh_slot, ProcSignalSlot::pss_barrierCheckMask, ProcSignalSlot::pss_barrierCV, ProcSignalSlot::pss_barrierGeneration, ProcSignalSlot::pss_pid, ProcSignalSlot::pss_signalFlags, and ShmemInitStruct().
Referenced by CreateSharedMemoryAndSemaphores().
Size ProcSignalShmemSize | ( | void | ) |
Definition at line 111 of file procsignal.c.
References add_size(), mul_size(), NumProcSignalSlots, and offsetof.
Referenced by CreateSharedMemoryAndSemaphores(), and ProcSignalShmemInit().
int SendProcSignal | ( | pid_t | pid, |
ProcSignalReason | reason, | ||
BackendId | backendId | ||
) |
Definition at line 261 of file procsignal.c.
References i, InvalidBackendId, kill, NumProcSignalSlots, ProcSignalHeader::psh_slot, ProcSignalSlot::pss_pid, ProcSignalSlot::pss_signalFlags, and SIGUSR1.
Referenced by CancelDBBackends(), mq_putmessage(), ParallelWorkerShutdown(), pg_log_backend_memory_contexts(), SICleanupQueue(), SignalBackends(), SignalVirtualTransaction(), and WalSndInitStopping().
void WaitForProcSignalBarrier | ( | uint64 | generation | ) |
Definition at line 392 of file procsignal.c.
References Assert, ConditionVariableCancelSleep(), ConditionVariableSleep(), i, NumProcSignalSlots, pg_atomic_read_u64(), pg_memory_barrier, ProcSignalHeader::psh_barrierGeneration, ProcSignalHeader::psh_slot, ProcSignalSlot::pss_barrierCV, ProcSignalSlot::pss_barrierGeneration, and WAIT_EVENT_PROC_SIGNAL_BARRIER.