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c7b8998ebb
Change pg_bsd_indent to follow upstream rules for placement of comments
to the right of code, and remove pgindent hack that caused comments
following #endif to not obey the general rule.
Commit e3860ffa4d wasn't actually using
the published version of pg_bsd_indent, but a hacked-up version that
tried to minimize the amount of movement of comments to the right of
code. The situation of interest is where such a comment has to be
moved to the right of its default placement at column 33 because there's
code there. BSD indent has always moved right in units of tab stops
in such cases --- but in the previous incarnation, indent was working
in 8-space tab stops, while now it knows we use 4-space tabs. So the
net result is that in about half the cases, such comments are placed
one tab stop left of before. This is better all around: it leaves
more room on the line for comment text, and it means that in such
cases the comment uniformly starts at the next 4-space tab stop after
the code, rather than sometimes one and sometimes two tabs after.
Also, ensure that comments following #endif are indented the same
as comments following other preprocessor commands such as #else.
That inconsistency turns out to have been self-inflicted damage
from a poorly-thought-through post-indent "fixup" in pgindent.
This patch is much less interesting than the first round of indent
changes, but also bulkier, so I thought it best to separate the effects.
Discussion: https://postgr.es/m/E1dAmxK-0006EE-1r@gemulon.postgresql.org
Discussion: https://postgr.es/m/30527.1495162840@sss.pgh.pa.us
56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/*-------------------------------------------------------------------------
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*
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* pmsignal.h
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* routines for signaling the postmaster from its child processes
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*
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*
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* Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/storage/pmsignal.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef PMSIGNAL_H
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#define PMSIGNAL_H
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/*
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* Reasons for signaling the postmaster. We can cope with simultaneous
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* signals for different reasons. If the same reason is signaled multiple
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* times in quick succession, however, the postmaster is likely to observe
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* only one notification of it. This is okay for the present uses.
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*/
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typedef enum
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{
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PMSIGNAL_RECOVERY_STARTED, /* recovery has started */
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PMSIGNAL_BEGIN_HOT_STANDBY, /* begin Hot Standby */
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PMSIGNAL_WAKEN_ARCHIVER, /* send a NOTIFY signal to xlog archiver */
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PMSIGNAL_ROTATE_LOGFILE, /* send SIGUSR1 to syslogger to rotate logfile */
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PMSIGNAL_START_AUTOVAC_LAUNCHER, /* start an autovacuum launcher */
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PMSIGNAL_START_AUTOVAC_WORKER, /* start an autovacuum worker */
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PMSIGNAL_BACKGROUND_WORKER_CHANGE, /* background worker state change */
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PMSIGNAL_START_WALRECEIVER, /* start a walreceiver */
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PMSIGNAL_ADVANCE_STATE_MACHINE, /* advance postmaster's state machine */
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NUM_PMSIGNALS /* Must be last value of enum! */
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} PMSignalReason;
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/* PMSignalData is an opaque struct, details known only within pmsignal.c */
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typedef struct PMSignalData PMSignalData;
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/*
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* prototypes for functions in pmsignal.c
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*/
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extern Size PMSignalShmemSize(void);
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extern void PMSignalShmemInit(void);
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extern void SendPostmasterSignal(PMSignalReason reason);
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extern bool CheckPostmasterSignal(PMSignalReason reason);
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extern int AssignPostmasterChildSlot(void);
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extern bool ReleasePostmasterChildSlot(int slot);
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extern bool IsPostmasterChildWalSender(int slot);
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extern void MarkPostmasterChildActive(void);
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extern void MarkPostmasterChildInactive(void);
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extern void MarkPostmasterChildWalSender(void);
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extern bool PostmasterIsAlive(void);
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#endif /* PMSIGNAL_H */
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