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A the same time this purges all runtime support needed for statically
initialized mutexes, moving all users over to the new Mutex type instead.
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Try to acquire lock and succeed only if lock is not already held.
Uses TryEnterCriticalSection or pthread_mutex_trylock.
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Many changes to code structure are included:
- removed TIME_SLICE_IN_MS
- removed sychronized_indexed_list
- removed region_owned
- kernel_owned move to kernel.h, task_owned moved to task.h
- global configs moved to rust_globals.h
- changed #pragma once to standard guard in rust_upcall.h
- got rid of memory.h
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Adds back the ability to make assertions about locks, but only under the
--enable-debug configuration
This reverts commit b247de64583e2ab527088813ba9192824554e801.
Conflicts:
src/rt/rust_sched_loop.cpp
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This simplifies the check for thread ownership by removing the _locked flag
and just comparing against the thread ID of the last thread to take the lock.
If the running thread took the lock _holding_thread will be equal to
pthread_self(); if _holding_thread is some other value then the running thread
does not have the lock.
Setting a pthread_t to 0 like this is not portable but should work on every
platform we are likely to care about for the near future.
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appears to give us much better parallel performance.
Also, commented out one more unsafe log and updated rust_kernel.cpp to compile under g++
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the minimum stack size to get the pfib benchmark to run without exhausting its address space on Windows.
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the CPU.
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wait instead of yield.
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primitives, switch rust_kernel to use a lock/signal pair and wait rather than spin.
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