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Tests/CTestTestFdSetSize: Support plain POSIX

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When compiling in ISO C mode functions from newer POSIX standards such as
usleep() and nanosleep() aren't available.
Fortunately select() allows timing out with microsecond precision.
This commit is contained in:
Raul Tambre 2022-06-24 21:19:01 +03:00
parent 526d10139d
commit 324ca5b489
1 changed files with 12 additions and 2 deletions
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14
Tests/CTestTestFdSetSize/sleep.c
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@ -1,7 +1,11 @@
#if defined(_WIN32)
# include <windows.h>
#else
#elif _XOPEN_SOURCE >= 500 || defined(_ALL_SOURCE)
# include <unistd.h>
#else
# include <time.h>
# include <sys/select.h>
#endif
/* sleeps for 0.1 second */
@ -9,8 +13,14 @@ int main(int argc, char** argv)
{
#if defined(_WIN32)
Sleep(100);
#else
#elif _XOPEN_SOURCE >= 500 || defined(_ALL_SOURCE)
usleep(100 * 1000);
#else
struct timeval tv;
tv.tv_sec = 0;
tv.tv_usec = 100 * 1000;
select(0, NULL, NULL, NULL, &tv);
#endif
return 0;
}