Orocos Real-Time Toolkit
2.6.0
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Please use this template to create new oro_arch.h files for different target architectures or compilers. More...
Go to the source code of this file.
Typedefs | |
typedef struct oro_atomic_t_interface | oro_atomic_t |
Functions | |
void | ORO_ATOMIC_SETUP (oro_atomic_t *a, int n) |
Initializes the uninitialized atomic structure a with a counter value of 'n'. | |
void | ORO_ATOMIC_CLEANUP (oro_atomic_t *a) |
Cleans up all resources allocated durint the setup of atomic structure a. | |
int | oro_atomic_read (oro_atomic_t *a) |
Returns the current counter value of the atomic structure a. | |
void | oro_atomic_set (oro_atomic_t *a, int n) |
Sets the current counter value of the atomic structure a to n. | |
void | oro_atomic_add (oro_atomic_t *a, int n) |
Add n to a. | |
void | oro_atomic_sub (int n, oro_atomic_t *a, int n) |
Substract n from a. | |
int | oro_atomic_sub_and_test (oro_atomic_t *a, int n) |
Substract n from a and test for zero. | |
void | oro_atomic_inc (oro_atomic_t *a) |
Increment a atomically. | |
void | oro_atomic_dec (oro_atomic_t *a) |
Decrement a atomically. | |
int | oro_atomic_dec_and_test (oro_atomic_t *a) |
Decrement a atomically and test for zero. | |
int | oro_atomic_inc_and_test (oro_atomic_t *a) |
Increment a atomically and test for zero. | |
int | oro_cmpxchg (void volatile *ptr, unsigned long o, unsigned long n) |
Compare o with *ptr and swap with n if equal. |
Please use this template to create new oro_arch.h files for different target architectures or compilers.
You are free to make any of these functions macros or to declare them inlined.
Do not include this header, it serves only as an example and the expected architecture-specific API of the RTT. Include oro_arch.h instead.
This interface has been inspired on the common intrinsics API's of various compilers, operating systems and processor architectures. Examples are: GCC, Visual Studio and the Intel instruction set.
Definition in file oro_arch_interface.h.
int oro_cmpxchg | ( | void volatile * | ptr, |
unsigned long | o, | ||
unsigned long | n | ||
) |
Compare o with *ptr and swap with n if equal.
Note: you need to implement this function for different sizes of pointers and payloads. You will probably need to implement this function as a macro to resolve this in a way compatible with C.
Referenced by RTT::os::CAS().