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peterepetere
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Convert macros to static inline functions (xlog_internal.h)
Reviewed-by: Amul Sul <sulamul@gmail.com> Discussion: https://www.postgresql.org/message-id/flat/5b558da8-99fb-0a99-83dd-f72f05388517%40enterprisedb.com
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‎src/include/access/xlog_internal.h‎

Lines changed: 96 additions & 58 deletions
Original file line numberDiff line numberDiff line change
@@ -159,74 +159,112 @@ typedef XLogLongPageHeaderData *XLogLongPageHeader;
159159
#define XLOG_FNAME_LEN 24
160160

161161
/*
162-
* Generate a WAL segment file name. Do not use this macro in a helper
162+
* Generate a WAL segment file name. Do not use this function in a helper
163163
* function allocating the result generated.
164164
*/
165-
#define XLogFileName(fname, tli, logSegNo, wal_segsz_bytes) \
166-
snprintf(fname, MAXFNAMELEN, "%08X%08X%08X", tli, \
167-
(uint32) ((logSegNo) / XLogSegmentsPerXLogId(wal_segsz_bytes)), \
168-
(uint32) ((logSegNo) % XLogSegmentsPerXLogId(wal_segsz_bytes)))
165+
static inline void
166+
XLogFileName(char *fname, TimeLineID tli, XLogSegNo logSegNo, int wal_segsz_bytes)
167+
{
168+
snprintf(fname, MAXFNAMELEN, "%08X%08X%08X", tli,
169+
(uint32) (logSegNo / XLogSegmentsPerXLogId(wal_segsz_bytes)),
170+
(uint32) (logSegNo % XLogSegmentsPerXLogId(wal_segsz_bytes)));
171+
}
169172

170-
#define XLogFileNameById(fname, tli, log, seg) \
171-
snprintf(fname, MAXFNAMELEN, "%08X%08X%08X", tli, log, seg)
173+
static inline void
174+
XLogFileNameById(char *fname, TimeLineID tli, uint32 log, uint32 seg)
175+
{
176+
snprintf(fname, MAXFNAMELEN, "%08X%08X%08X", tli, log, seg);
177+
}
172178

173-
#define IsXLogFileName(fname) \
174-
(strlen(fname) == XLOG_FNAME_LEN && \
175-
strspn(fname, "0123456789ABCDEF") == XLOG_FNAME_LEN)
179+
static inline bool
180+
IsXLogFileName(const char *fname)
181+
{
182+
return (strlen(fname) == XLOG_FNAME_LEN && \
183+
strspn(fname, "0123456789ABCDEF") == XLOG_FNAME_LEN);
184+
}
176185

177186
/*
178187
* XLOG segment with .partial suffix. Used by pg_receivewal and at end of
179188
* archive recovery, when we want to archive a WAL segment but it might not
180189
* be complete yet.
181190
*/
182-
#define IsPartialXLogFileName(fname) \
183-
(strlen(fname) == XLOG_FNAME_LEN + strlen(".partial") && \
184-
strspn(fname, "0123456789ABCDEF") == XLOG_FNAME_LEN && \
185-
strcmp((fname) + XLOG_FNAME_LEN, ".partial") == 0)
186-
187-
#define XLogFromFileName(fname, tli, logSegNo, wal_segsz_bytes) \
188-
do { \
189-
uint32 log; \
190-
uint32 seg; \
191-
sscanf(fname, "%08X%08X%08X", tli, &log, &seg); \
192-
*logSegNo = (uint64) log * XLogSegmentsPerXLogId(wal_segsz_bytes) + seg; \
193-
} while (0)
194-
195-
#define XLogFilePath(path, tli, logSegNo, wal_segsz_bytes) \
196-
snprintf(path, MAXPGPATH, XLOGDIR "/%08X%08X%08X", tli, \
197-
(uint32) ((logSegNo) / XLogSegmentsPerXLogId(wal_segsz_bytes)), \
198-
(uint32) ((logSegNo) % XLogSegmentsPerXLogId(wal_segsz_bytes)))
199-
200-
#define TLHistoryFileName(fname, tli) \
201-
snprintf(fname, MAXFNAMELEN, "%08X.history", tli)
202-
203-
#define IsTLHistoryFileName(fname) \
204-
(strlen(fname) == 8 + strlen(".history") && \
205-
strspn(fname, "0123456789ABCDEF") == 8 && \
206-
strcmp((fname) + 8, ".history") == 0)
207-
208-
#define TLHistoryFilePath(path, tli) \
209-
snprintf(path, MAXPGPATH, XLOGDIR "/%08X.history", tli)
210-
211-
#define StatusFilePath(path, xlog, suffix) \
212-
snprintf(path, MAXPGPATH, XLOGDIR "/archive_status/%s%s", xlog, suffix)
213-
214-
#define BackupHistoryFileName(fname, tli, logSegNo, startpoint, wal_segsz_bytes) \
215-
snprintf(fname, MAXFNAMELEN, "%08X%08X%08X.%08X.backup", tli, \
216-
(uint32) ((logSegNo) / XLogSegmentsPerXLogId(wal_segsz_bytes)), \
217-
(uint32) ((logSegNo) % XLogSegmentsPerXLogId(wal_segsz_bytes)), \
218-
(uint32) (XLogSegmentOffset(startpoint, wal_segsz_bytes)))
219-
220-
#define IsBackupHistoryFileName(fname) \
221-
(strlen(fname) > XLOG_FNAME_LEN && \
222-
strspn(fname, "0123456789ABCDEF") == XLOG_FNAME_LEN && \
223-
strcmp((fname) + strlen(fname) - strlen(".backup"), ".backup") == 0)
224-
225-
#define BackupHistoryFilePath(path, tli, logSegNo, startpoint, wal_segsz_bytes) \
226-
snprintf(path, MAXPGPATH, XLOGDIR "/%08X%08X%08X.%08X.backup", tli, \
227-
(uint32) ((logSegNo) / XLogSegmentsPerXLogId(wal_segsz_bytes)), \
228-
(uint32) ((logSegNo) % XLogSegmentsPerXLogId(wal_segsz_bytes)), \
229-
(uint32) (XLogSegmentOffset((startpoint), wal_segsz_bytes)))
191+
static inline bool
192+
IsPartialXLogFileName(const char *fname)
193+
{
194+
return (strlen(fname) == XLOG_FNAME_LEN + strlen(".partial") &&
195+
strspn(fname, "0123456789ABCDEF") == XLOG_FNAME_LEN &&
196+
strcmp(fname + XLOG_FNAME_LEN, ".partial") == 0);
197+
}
198+
199+
static inline void
200+
XLogFromFileName(const char *fname, TimeLineID *tli, XLogSegNo *logSegNo, int wal_segsz_bytes)
201+
{
202+
uint32 log;
203+
uint32 seg;
204+
205+
sscanf(fname, "%08X%08X%08X", tli, &log, &seg);
206+
*logSegNo = (uint64) log * XLogSegmentsPerXLogId(wal_segsz_bytes) + seg;
207+
}
208+
209+
static inline void
210+
XLogFilePath(char *path, TimeLineID tli, XLogSegNo logSegNo, int wal_segsz_bytes)
211+
{
212+
snprintf(path, MAXPGPATH, XLOGDIR "/%08X%08X%08X", tli,
213+
(uint32) (logSegNo / XLogSegmentsPerXLogId(wal_segsz_bytes)),
214+
(uint32) (logSegNo % XLogSegmentsPerXLogId(wal_segsz_bytes)));
215+
}
216+
217+
static inline void
218+
TLHistoryFileName(char *fname, TimeLineID tli)
219+
{
220+
snprintf(fname, MAXFNAMELEN, "%08X.history", tli);
221+
}
222+
223+
static inline bool
224+
IsTLHistoryFileName(const char *fname)
225+
{
226+
return (strlen(fname) == 8 + strlen(".history") &&
227+
strspn(fname, "0123456789ABCDEF") == 8 &&
228+
strcmp(fname + 8, ".history") == 0);
229+
}
230+
231+
static inline void
232+
TLHistoryFilePath(char *path, TimeLineID tli)
233+
{
234+
snprintf(path, MAXPGPATH, XLOGDIR "/%08X.history", tli);
235+
}
236+
237+
static inline void
238+
StatusFilePath(char *path, const char *xlog, const char *suffix)
239+
{
240+
snprintf(path, MAXPGPATH, XLOGDIR "/archive_status/%s%s", xlog, suffix);
241+
}
242+
243+
static inline void
244+
BackupHistoryFileName(char *fname, TimeLineID tli, XLogSegNo logSegNo, XLogRecPtr startpoint, int wal_segsz_bytes)
245+
{
246+
snprintf(fname, MAXFNAMELEN, "%08X%08X%08X.%08X.backup", tli,
247+
(uint32) (logSegNo / XLogSegmentsPerXLogId(wal_segsz_bytes)),
248+
(uint32) (logSegNo % XLogSegmentsPerXLogId(wal_segsz_bytes)),
249+
(uint32) (XLogSegmentOffset(startpoint, wal_segsz_bytes)));
250+
}
251+
252+
static inline bool
253+
IsBackupHistoryFileName(const char *fname)
254+
{
255+
return (strlen(fname) > XLOG_FNAME_LEN &&
256+
strspn(fname, "0123456789ABCDEF") == XLOG_FNAME_LEN &&
257+
strcmp(fname + strlen(fname) - strlen(".backup"), ".backup") == 0);
258+
}
259+
260+
static inline void
261+
BackupHistoryFilePath(char *path, TimeLineID tli, XLogSegNo logSegNo, XLogRecPtr startpoint, int wal_segsz_bytes)
262+
{
263+
snprintf(path, MAXPGPATH, XLOGDIR "/%08X%08X%08X.%08X.backup", tli,
264+
(uint32) (logSegNo / XLogSegmentsPerXLogId(wal_segsz_bytes)),
265+
(uint32) (logSegNo % XLogSegmentsPerXLogId(wal_segsz_bytes)),
266+
(uint32) (XLogSegmentOffset((startpoint), wal_segsz_bytes)));
267+
}
230268

231269
/*
232270
* Information logged when we detect a change in one of the parameters

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