Last change
on this file since 413 was 398, checked in by coas-nagasima, 5 years ago |
mbedTLS版Azure IoT Hub接続サンプルのソースコードを追加
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File size:
351 bytes
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1 | #include "pthread_impl.h"
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2 | #include <threads.h>
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3 |
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4 | int mtx_lock(mtx_t *m)
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5 | {
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6 | if (m->_m_type == PTHREAD_MUTEX_NORMAL && !a_cas(&m->_m_lock, 0, EBUSY))
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7 | return thrd_success;
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8 | /* Calling mtx_timedlock with a null pointer is an extension.
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9 | * It is convenient, here to avoid duplication of the logic
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10 | * for return values. */
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11 | return mtx_timedlock(m, 0);
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12 | }
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