FF_CreateSemaphore()
From FullFAT
Creates a Semaphore or Mutex object and returns a void casted pointer or handle to the object.
This function must be written by the developer to provide thread-safe integration with their platform.
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Prototype
void *FF_CreateSemaphore(void);
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The function is called, and a semaphore object is created.
Example
On windows this is done with the following code:
#include <windows.h> void *FF_CreateSemaphore(void) { HANDLE hSem = CreateMutex(NULL, FALSE, NULL);//CreateSemaphore(NULL, 1, 1, NULL); return (void *) hSem; }
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Or Analog Devices VDK Kernel:
#include <VDK.h> void *FF_CreateSemaphore(void) { // Call your OS's CreateSemaphore function // VDK_SemaphoreID *mysem = malloc(sizeof(VDK_SemaphoreID)); *mysem = VDK_CreateSemaphore(1, 1, 1, 0); return (void *) mysem; }
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NOTE
Examples for Linux are documented in the demo projects, and will be added here shortly.
These functions should NEVER be called by the developer! FullFAT will call you!
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See Also
- FF_CreateSemaphore()
- FF_DestroySemaphore()
- FF_PendSemaphore()
- FF_ReleaseSemaphore()
- FF_Yield()
- FF_Sleep()
- FF_GetSystemTime()
- ff_config.h
- ff_types.h
