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author | rsc <devnull@localhost> | 2004-12-25 21:57:50 +0000 |
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committer | rsc <devnull@localhost> | 2004-12-25 21:57:50 +0000 |
commit | 619085f0b4a85104ef6c7496f9ce1f46e9b17c82 (patch) | |
tree | 9959c15a14c44e8c8fe38f78bbcbbb576d23b2aa /src/libthread/ref.c | |
parent | 1544f90960275dc9211bde30329c3258e0e1bf38 (diff) | |
download | plan9port-619085f0b4a85104ef6c7496f9ce1f46e9b17c82.tar.gz plan9port-619085f0b4a85104ef6c7496f9ce1f46e9b17c82.tar.bz2 plan9port-619085f0b4a85104ef6c7496f9ce1f46e9b17c82.zip |
more new libthread
Diffstat (limited to 'src/libthread/ref.c')
-rw-r--r-- | src/libthread/ref.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/libthread/ref.c b/src/libthread/ref.c new file mode 100644 index 00000000..30c932ed --- /dev/null +++ b/src/libthread/ref.c @@ -0,0 +1,27 @@ +#include "u.h" +#include "libc.h" +#include "thread.h" + +static long +refadd(Ref *r, long a) +{ + long ref; + + lock(&r->lock); + r->ref += a; + ref = r->ref; + unlock(&r->lock); + return ref; +} + +long +incref(Ref *r) +{ + return refadd(r, 1); +} + +long +decref(Ref *r) +{ + return refadd(r, -1); +} |