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Arrange for on_exit_nicely to be thread-safe.

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Extracted from Joachim Wieland's parallel pg_dump patch, with some
additional comments by me.
This commit is contained in:
Robert Haas 2012-04-03 08:38:24 -04:00
parent 38b9693fd9
commit 5e86c61a7e
1 changed files with 10 additions and 8 deletions
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18
src/bin/pg_dump/dumputils.c
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@ -1319,16 +1319,18 @@ on_exit_nicely(on_exit_nicely_callback function, void *arg)
on_exit_nicely_index++; on_exit_nicely_index++;
} }
/* Run accumulated on_exit_nicely callbacks and then exit quietly. */ /*
* Run accumulated on_exit_nicely callbacks in reverse order and then exit
* quietly. This needs to be thread-safe.
*/
void void
exit_nicely(int code) exit_nicely(int code)
{ {
while (--on_exit_nicely_index >= 0) int i;
(*on_exit_nicely_list[on_exit_nicely_index].function)(code,
on_exit_nicely_list[on_exit_nicely_index].arg); for (i = on_exit_nicely_index - 1; i >= 0; i--)
#ifdef WIN32 (*on_exit_nicely_list[i].function)(code,
if (parallel_init_done && GetCurrentThreadId() != mainThreadId) on_exit_nicely_list[i].arg);
ExitThread(code);
#endif
exit(code); exit(code);
} }