source:
asp3_tinet_ecnl_arm/trunk/musl-1.1.18/src/thread/__lock.c
Last change on this file was 352, checked in by , 6 years ago | |
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File size: 230 bytes |
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1 | #include "pthread_impl.h" |
2 | |
3 | void __lock(volatile int *l) |
4 | { |
5 | if (libc.threads_minus_1) |
6 | while (a_swap(l, 1)) __wait(l, l+1, 1, 1); |
7 | } |
8 | |
9 | void __unlock(volatile int *l) |
10 | { |
11 | if (l[0]) { |
12 | a_store(l, 0); |
13 | if (l[1]) __wake(l, 1, 1); |
14 | } |
15 | } |
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