forked from OSchip/llvm-project
72 lines
1.5 KiB
C++
72 lines
1.5 KiB
C++
#ifndef _WIN32
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#include "lldb/Host/ProcessRunLock.h"
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namespace lldb_private {
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ProcessRunLock::ProcessRunLock()
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: m_running(false)
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{
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int err = ::pthread_rwlock_init(&m_rwlock, NULL); (void) err;
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//#if LLDB_CONFIGURATION_DEBUG
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// assert(err == 0);
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//#endif
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}
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ProcessRunLock::~ProcessRunLock()
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{
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int err = ::pthread_rwlock_destroy(&m_rwlock); (void) err;
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//#if LLDB_CONFIGURATION_DEBUG
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// assert(err == 0);
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//#endif
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}
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bool ProcessRunLock::ReadTryLock()
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{
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::pthread_rwlock_rdlock(&m_rwlock);
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if (m_running == false)
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{
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return true;
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}
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::pthread_rwlock_unlock(&m_rwlock);
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return false;
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}
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bool ProcessRunLock::ReadUnlock()
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{
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return ::pthread_rwlock_unlock(&m_rwlock) == 0;
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}
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bool ProcessRunLock::SetRunning()
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{
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::pthread_rwlock_wrlock(&m_rwlock);
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m_running = true;
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::pthread_rwlock_unlock(&m_rwlock);
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return true;
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}
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bool ProcessRunLock::TrySetRunning()
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{
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bool r;
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if (::pthread_rwlock_trywrlock(&m_rwlock) == 0)
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{
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r = !m_running;
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m_running = true;
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::pthread_rwlock_unlock(&m_rwlock);
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return r;
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}
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return false;
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}
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bool ProcessRunLock::SetStopped()
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{
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::pthread_rwlock_wrlock(&m_rwlock);
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m_running = false;
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::pthread_rwlock_unlock(&m_rwlock);
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return true;
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}
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}
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#endif
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