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Unify several ways to tracking backend type

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Add a new global variable MyBackendType that uses the same BackendType
enum that was previously only used by the stats collector.  That way
several duplicate ways of checking what type a particular process is
can be simplified.  Since it's no longer just for stats, move to
miscinit.c and rename existing functions to match the expanded
purpose.

Reviewed-by: Julien Rouhaud <rjuju123@gmail.com>
Reviewed-by: Kuntal Ghosh <kuntalghosh.2007@gmail.com>
Reviewed-by: Alvaro Herrera <alvherre@2ndquadrant.com>
Discussion: https://www.postgresql.org/message-id/flat/c65e5196-4f04-4ead-9353-6088c19615a3@2ndquadrant.com
This commit is contained in:
Peter Eisentraut
2020-03-11 16:36:40 +01:00
parent 1cc9c2412c
commit 8e8a0becb3
12 changed files with 126 additions and 164 deletions
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22
src/include/miscadmin.h
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@ -306,6 +306,28 @@ extern void InitStandaloneProcess(const char *argv0);
extern void SwitchToSharedLatch(void);
extern void SwitchBackToLocalLatch(void);
typedef enum BackendType
{
B_INVALID = 0,
B_AUTOVAC_LAUNCHER,
B_AUTOVAC_WORKER,
B_BACKEND,
B_BG_WORKER,
B_BG_WRITER,
B_CHECKPOINTER,
B_STARTUP,
B_WAL_RECEIVER,
B_WAL_SENDER,
B_WAL_WRITER,
B_ARCHIVER,
B_STATS_COLLECTOR,
B_LOGGER,
} BackendType;
extern BackendType MyBackendType;
extern const char *GetBackendTypeDesc(BackendType backendType);
extern void SetDatabasePath(const char *path);
extern void checkDataDir(void);
extern void SetDataDir(const char *dir);