| 1 | #include "InterruptableSleeper.h"
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| 2 |
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| 3 | namespace spovnet {
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| 4 | namespace common {
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| 5 |
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| 6 | InterruptableSleeper::InterruptableSleeper() {
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| 7 | boost::mutex::scoped_lock scopedLock(m_mutex);
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| 8 |
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| 9 | #ifdef WIN32
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| 10 | m_handle = CreateEvent (NULL, TRUE, FALSE, NULL);
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| 11 | assert (m_handle != NULL);
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| 12 | #else
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| 13 | m_handle = new MUTEX_COND();
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| 14 | int ret = 0;
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| 15 |
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| 16 | ret = pthread_mutex_init(&(m_handle->mutex), NULL);
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| 17 | assert (ret == 0);
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| 18 |
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| 19 | ret = pthread_cond_init(&(m_handle->cond), NULL);
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| 20 | assert (ret == 0);
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| 21 | #endif
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| 22 | }
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| 23 |
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| 24 | InterruptableSleeper::~InterruptableSleeper() {
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| 25 | boost::mutex::scoped_lock scopedLock(m_mutex);
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| 26 |
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| 27 | #ifdef WIN32
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| 28 | BOOL ret = CloseHandle (m_handle);
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| 29 | assert (ret == TRUE);
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| 30 | #else
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| 31 | int ret = 0;
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| 32 |
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| 33 | ret = pthread_cond_destroy(&(m_handle->cond));
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| 34 | assert (ret == 0);
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| 35 |
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| 36 | ret = pthread_mutex_destroy(&(m_handle->mutex));
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| 37 | assert (ret == 0);
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| 38 |
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| 39 | delete m_handle;
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| 40 | #endif
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| 41 | }
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| 42 |
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| 43 | void InterruptableSleeper::interrupt() {
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| 44 | boost::mutex::scoped_lock scopedLock(m_mutex);
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| 45 |
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| 46 | #ifdef WIN32
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| 47 | BOOL ret = SetEvent (m_handle);
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| 48 | assert (ret == TRUE);
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| 49 | #else
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| 50 | int ret = pthread_cond_signal(&(m_handle)->cond);
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| 51 | assert (ret == 0);
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| 52 | #endif
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| 53 | }
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| 54 |
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| 55 | void InterruptableSleeper::sleep(unsigned long millis) {
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| 56 | //
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| 57 | // NO mutex, otherwise the ::interrupt
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| 58 | // function can not be called at all
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| 59 | //
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| 60 |
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| 61 | #ifdef WIN32
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| 62 |
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| 63 | DWORD dret = WaitForSingleObject (m_handle, millis);
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| 64 | assert (dret != WAIT_FAILED);
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| 65 |
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| 66 | #else
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| 67 |
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| 68 | int ret;
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| 69 | struct timespec tm;
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| 70 | struct timeb tp;
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| 71 |
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| 72 | ret = pthread_mutex_lock(&(m_handle->mutex));
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| 73 | assert (ret == 0);
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| 74 |
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| 75 | long sec = millis / 1000;
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| 76 | long millisec = millis % 1000;
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| 77 |
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| 78 | ftime(&tp);
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| 79 | tp.time += sec;
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| 80 | tp.millitm += millisec;
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| 81 |
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| 82 | if (tp.millitm > 999) {
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| 83 | tp.millitm -= 1000;
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| 84 | tp.time++;
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| 85 | }
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| 86 |
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| 87 | tm.tv_sec = tp.time;
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| 88 | tm.tv_nsec = tp.millitm * 1000000;
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| 89 |
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| 90 | ret = pthread_cond_timedwait(&(m_handle->cond), &(m_handle->mutex), &tm);
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| 91 | assert (ret == 0 || ret == ETIMEDOUT);
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| 92 |
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| 93 | ret = pthread_mutex_unlock(&(m_handle->mutex));
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| 94 | assert (ret == 0);
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| 95 |
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| 96 | #endif
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| 97 |
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| 98 | //
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| 99 | // under Windows we have to reset the event again
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| 100 | //
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| 101 |
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| 102 | #ifdef WIN32
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| 103 | {
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| 104 | boost::mutex::scoped_lock scopedLock (m_mutex);
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| 105 | BOOL bret;
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| 106 | bret = ResetEvent (m_handle);
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| 107 | assert (bret == TRUE);
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| 108 | }
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| 109 | #endif
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| 110 | }
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| 111 | }
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| 112 | } // namespace spovnet, common
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