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authorAlex AUVOLAT <alexis211@gmail.com>2012-05-19 11:45:49 +0200
committerAlex AUVOLAT <alexis211@gmail.com>2012-05-19 11:45:49 +0200
commit499ca6c243b05da176a2d4bd9a2317f0b28afc7f (patch)
treef55ff788632b017ab8de83b71ad02b0998e1dda5 /src/user/lib/std/sched.c
parent7b466345af0d3a7dc5622617ce443a90c64e34a4 (diff)
downloadTCE-499ca6c243b05da176a2d4bd9a2317f0b28afc7f.tar.gz
TCE-499ca6c243b05da176a2d4bd9a2317f0b28afc7f.zip
Introducing FWIK, the userland C++ framework. Far from complete.
Diffstat (limited to 'src/user/lib/std/sched.c')
-rw-r--r--src/user/lib/std/sched.c26
1 files changed, 0 insertions, 26 deletions
diff --git a/src/user/lib/std/sched.c b/src/user/lib/std/sched.c
deleted file mode 100644
index 29ea8a8..0000000
--- a/src/user/lib/std/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;
-}