diff options
Diffstat (limited to 'src/include/miscadmin.h')
| -rw-r--r-- | src/include/miscadmin.h | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/src/include/miscadmin.h b/src/include/miscadmin.h index e951cf7a92..d0b15547cc 100644 --- a/src/include/miscadmin.h +++ b/src/include/miscadmin.h @@ -10,7 +10,7 @@ * Over time, this has also become the preferred place for widely known * resource-limitation stuff, such as work_mem and check_stack_depth(). * - * Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group + * Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * * src/include/miscadmin.h @@ -55,6 +55,11 @@ * course, only if the interrupt holdoff counter is zero). See the * related code for details. * + * A lost connection is handled similarly, although the loss of connection + * does not raise a signal, but is detected when we fail to write to the + * socket. If there was a signal for a broken connection, we could make use of + * it by setting ClientConnectionLost in the signal handler. + * * A related, but conceptually distinct, mechanism is the "critical section" * mechanism. A critical section not only holds off cancel/die interrupts, * but causes any ereport(ERROR) or ereport(FATAL) to become ereport(PANIC) @@ -70,6 +75,8 @@ extern PGDLLIMPORT volatile bool InterruptPending; extern volatile bool QueryCancelPending; extern volatile bool ProcDiePending; +extern volatile bool ClientConnectionLost; + /* these are marked volatile because they are examined by signal handlers: */ extern volatile bool ImmediateInterruptOK; extern PGDLLIMPORT volatile uint32 InterruptHoldoffCount; @@ -230,11 +237,28 @@ extern int VacuumCostPageDirty; extern int VacuumCostLimit; extern int VacuumCostDelay; +extern int VacuumPageHit; +extern int VacuumPageMiss; +extern int VacuumPageDirty; + extern int VacuumCostBalance; extern bool VacuumCostActive; /* in tcop/postgres.c */ + +#if defined(__ia64__) || defined(__ia64) +typedef struct +{ + char *stack_base_ptr; + char *register_stack_base_ptr; +} pg_stack_base_t; +#else +typedef char *pg_stack_base_t; +#endif + +extern pg_stack_base_t set_stack_base(void); +extern void restore_stack_base(pg_stack_base_t base); extern void check_stack_depth(void); /* in tcop/utility.c */ |