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authorAndreas Baumann <mail@andreasbaumann.cc>2019-04-04 13:09:15 +0200
committerAndreas Baumann <mail@andreasbaumann.cc>2019-04-04 13:09:15 +0200
commit2f4d6764d78cf085601b34ac92486405bd11095d (patch)
tree550601dc79e74fd4c184dc96a95687d1d1238b43 /plugins/common.h
parentfaea5899ba3264581bf75649e4b399d0b69bd125 (diff)
parent5f16ba81c4af1a05e67806ca989a1dd46248a5fd (diff)
downloadmonitoring-plugins-2f4d6764d78cf085601b34ac92486405bd11095d.tar.gz
Merge branch 'master' into feature_check_curl
Diffstat (limited to 'plugins/common.h')
-rw-r--r--plugins/common.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/plugins/common.h b/plugins/common.h
index 6bf4fca4..0f08e2f6 100644
--- a/plugins/common.h
+++ b/plugins/common.h
@@ -225,4 +225,18 @@ enum {
225# define __attribute__(x) /* do nothing */ 225# define __attribute__(x) /* do nothing */
226#endif 226#endif
227 227
228/* Try sysconf(_SC_OPEN_MAX) first, as it can be higher than OPEN_MAX.
229 * If that fails and the macro isn't defined, we fall back to an educated
230 * guess. There's no guarantee that our guess is adequate and the program
231 * will die with SIGSEGV if it isn't and the upper boundary is breached. */
232#define DEFAULT_MAXFD 256 /* fallback value if no max open files value is set */
233#define MAXFD_LIMIT 8192 /* upper limit of open files */
234#ifdef _SC_OPEN_MAX
235static long maxfd = 0;
236#elif defined(OPEN_MAX)
237# define maxfd OPEN_MAX
238#else /* sysconf macro unavailable, so guess (may be wildly inaccurate) */
239# define maxfd DEFAULT_MAXFD
240#endif
241
228#endif /* _COMMON_H_ */ 242#endif /* _COMMON_H_ */