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author | Alex AUVOLAT <alexis211@gmail.com> | 2012-05-18 11:25:25 +0200 |
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committer | Alex AUVOLAT <alexis211@gmail.com> | 2012-05-18 11:25:25 +0200 |
commit | f3e03796652b792bb3fd5d3d25b687b9a7f14633 (patch) | |
tree | feef62986de699702136aaf0d56295fde9297115 /src/common/sched.c | |
parent | c19415d2ffb6f063f91983ff505e2530ab500908 (diff) | |
download | TCE-f3e03796652b792bb3fd5d3d25b687b9a7f14633.tar.gz TCE-f3e03796652b792bb3fd5d3d25b687b9a7f14633.zip |
A bit of a change in the directory layout.
Diffstat (limited to 'src/common/sched.c')
-rw-r--r-- | src/common/sched.c | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/src/common/sched.c b/src/common/sched.c deleted file mode 100644 index 29ea8a8..0000000 --- a/src/common/sched.c +++ /dev/null @@ -1,26 +0,0 @@ -#include <sched.h> - -/* Internal use only. This function is atomic, meaning it cannot be interrupted by a system task switch. */ -static uint32_t atomic_exchange(uint32_t* ptr, uint32_t newval) { - uint32_t r; - asm volatile("xchg (%%ecx), %%eax" : "=a"(r) : "c"(ptr), "a"(newval)); - return r; -} - -int mutex_lock(uint32_t* mutex) { - while (atomic_exchange(mutex, MUTEX_LOCKED) == MUTEX_LOCKED) { - schedule(); - } - return 0; -} - -int mutex_lockE(uint32_t* mutex) { - if (atomic_exchange(mutex, MUTEX_LOCKED) == MUTEX_LOCKED) { - return 0; - } - return 1; -} - -void mutex_unlock(uint32_t* mutex) { - *mutex = MUTEX_UNLOCKED; -} |