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Use consistent style for checking return from system calls

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Use

    if (something() != 0)
        error ...

instead of just

    if (something)
        error ...

The latter is not incorrect, but it's a bit confusing and not the
common style.

Discussion: https://www.postgresql.org/message-id/flat/5de61b6b-8be9-7771-0048-860328efe027%402ndquadrant.com
This commit is contained in:
Peter Eisentraut
2019-07-06 23:18:46 +02:00
parent d1a040543b
commit 7e9a4c5c3d
19 changed files with 45 additions and 45 deletions
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6
src/backend/access/transam/timeline.c
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@@ -371,7 +371,7 @@ writeTimeLineHistory(TimeLineID newTLI, TimeLineID parentTLI,
pgstat_report_wait_end();
}
if (CloseTransientFile(srcfd))
if (CloseTransientFile(srcfd) != 0)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not close file \"%s\": %m", path)));
@@ -415,7 +415,7 @@ writeTimeLineHistory(TimeLineID newTLI, TimeLineID parentTLI,
errmsg("could not fsync file \"%s\": %m", tmppath)));
pgstat_report_wait_end();
if (CloseTransientFile(fd))
if (CloseTransientFile(fd) != 0)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not close file \"%s\": %m", tmppath)));
@@ -493,7 +493,7 @@ writeTimeLineHistoryFile(TimeLineID tli, char *content, int size)
errmsg("could not fsync file \"%s\": %m", tmppath)));
pgstat_report_wait_end();
if (CloseTransientFile(fd))
if (CloseTransientFile(fd) != 0)
ereport(ERROR,
(errcode_for_file_access(),
errmsg("could not close file \"%s\": %m", tmppath)));