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| author | Rich Felker <dalias@aerifal.cx> | 2011-03-04 00:45:59 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2011-03-04 00:45:59 -0500 |
| commit | 6fc5fdbdc70dd17ea8e681a361fb4dae541ee953 (patch) | |
| tree | eee28ceddc2de85e528e50340e045a875e6a8e60 /src/thread/sem_getvalue.c | |
| parent | 03dcc3417ce4388a652bdd053cb2b6af860daf00 (diff) | |
| download | musl-6fc5fdbdc70dd17ea8e681a361fb4dae541ee953.tar.gz musl-6fc5fdbdc70dd17ea8e681a361fb4dae541ee953.tar.xz musl-6fc5fdbdc70dd17ea8e681a361fb4dae541ee953.zip | |
implement POSIX semaphores
Diffstat (limited to 'src/thread/sem_getvalue.c')
| -rw-r--r-- | src/thread/sem_getvalue.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/thread/sem_getvalue.c b/src/thread/sem_getvalue.c new file mode 100644 index 00000000..643c0968 --- /dev/null +++ b/src/thread/sem_getvalue.c @@ -0,0 +1,8 @@ +#include <semaphore.h> + +int sem_getvalue(sem_t *sem, int *valp) +{ + int val = sem->__val[0]; + *valp = val < 0 ? 0 : val; + return 0; +} |