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22 lines
568 B
22 lines
568 B
#pragma once |
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#include "AP_HAL_Namespace.h" |
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#include <AP_Common/AP_Common.h> |
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#define HAL_SEMAPHORE_BLOCK_FOREVER 0 |
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class AP_HAL::Semaphore { |
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public: |
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virtual bool take(uint32_t timeout_ms) WARN_IF_UNUSED = 0 ; |
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virtual bool take_nonblocking() WARN_IF_UNUSED = 0; |
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// a varient that blocks forever |
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#pragma GCC diagnostic push |
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#pragma GCC diagnostic ignored "-Wunused-result" |
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virtual void take_blocking() { take(HAL_SEMAPHORE_BLOCK_FOREVER); }; |
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#pragma GCC diagnostic pop |
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virtual bool give() = 0; |
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virtual ~Semaphore(void) {} |
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};
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