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For systems with userspace, the sys_sem exist in user memory working as counter semaphore for user mode thread. The implemention of sys_sem is based on k_futex. And the majority of the synchronization operations are performed in user mode to reduce the calling of system call. And for systems without userspace enabled, sys_sem behaves like k_sem. Fixes: #15139. Signed-off-by: Wentong Wu <wentong.wu@intel.com> |
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.. | ||
assert.c | ||
base64.c | ||
CMakeLists.txt | ||
crc7_sw.c | ||
crc8_sw.c | ||
crc16_sw.c | ||
crc32_sw.c | ||
fdtable.c | ||
hex.c | ||
json.c | ||
Kconfig | ||
mempool.c | ||
mutex.c | ||
printk.c | ||
rb.c | ||
ring_buffer.c | ||
sem.c | ||
thread_entry.c | ||
timeutil.c | ||
work_q.c |