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authorLukasz Majewski <lukma@denx.de>2019-10-24 16:20:56 +0200
committerLukasz Majewski <lukma@denx.de>2019-10-27 21:49:25 +0100
commit48123656609fea92a154f08ab619ab5186276432 (patch)
tree34c399889dbe5271b30b7c840f9fd048875e704f /include/time.h
parent513aaa0d782f8fae36732d06ca59d658149f0139 (diff)
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time: Introduce function to check correctness of nanoseconds value
The valid_nanoseconds () static inline function has been introduced to
check if nanoseconds value is in the correct range - greater or equal to
zero and less than 1000000000.

The explicit #include <time.h> has been added to files where it was
missing.

The __syscall_slong_t type for ns has been used to avoid issues on x32.

Tested with:
- scripts/build-many-glibcs.py
- make PARALLELMFLAGS="-j12" && make PARALLELMFLAGS="-j12" xcheck on x86_64
Diffstat (limited to 'include/time.h')
-rw-r--r--include/time.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/time.h b/include/time.h
index d93b16a781..1f6507ef5f 100644
--- a/include/time.h
+++ b/include/time.h
@@ -236,5 +236,13 @@ valid_timespec64_to_timeval (const struct __timespec64 ts64)
 
   return tv;
 }
+
+/* Check if a value is in the valid nanoseconds range. Return true if
+   it is, false otherwise.  */
+static inline bool
+valid_nanoseconds (__syscall_slong_t ns)
+{
+  return __glibc_likely (0 <= ns && ns < 1000000000);
+}
 #endif
 #endif