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Merge pull request #11754 from mnauw/winpr_tz_init

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[winpr,timezone] ensure thread-safe initialization
This commit is contained in:
Martin Fleisz
2025-08-07 08:50:13 +02:00
committed by GitHub
parent 5e54e0a69b bb3871741b
commit c178a54119
1 changed files with 9 additions and 7 deletions
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16
winpr/libwinpr/timezone/TimeZoneIanaAbbrevMap.c
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@@ -27,6 +27,7 @@
#include <unistd.h>
#include <winpr/string.h>
#include <winpr/synch.h>
#include "timezone.h"
typedef struct
@@ -229,20 +230,21 @@ static void TimeZoneIanaAbbrevCleanup(void)
TimeZoneIanaAbbrevMapSize = 0;
}
static void TimeZoneIanaAbbrevInitialize(void)
static BOOL CALLBACK TimeZoneIanaAbbrevInitialize(WINPR_ATTR_UNUSED PINIT_ONCE once,
WINPR_ATTR_UNUSED PVOID param,
WINPR_ATTR_UNUSED PVOID* context)
{
static BOOL initialized = FALSE;
if (initialized)
return;
iterate_subdir_recursive(zonepath, NULL, NULL);
(void)atexit(TimeZoneIanaAbbrevCleanup);
initialized = TRUE;
return TRUE;
}
size_t TimeZoneIanaAbbrevGet(const char* abbrev, const char** list, size_t listsize)
{
TimeZoneIanaAbbrevInitialize();
static INIT_ONCE init_guard = INIT_ONCE_STATIC_INIT;
InitOnceExecuteOnce(&init_guard, TimeZoneIanaAbbrevInitialize, NULL, NULL);
size_t rc = 0;
for (size_t x = 0; x < TimeZoneIanaAbbrevMapSize; x++)