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SMP: Add macros to CPU set manipulation to sched.h

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This commit is contained in:
Gregory Nutt
2016-02-20 18:45:07 -06:00
parent 0eadf1dcad
commit f3356fee5b
3 changed files with 194 additions and 1 deletions
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include/sched.h
+109 -1
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@@ -66,6 +66,113 @@
#define PTHREAD_KEYS_MAX CONFIG_NPTHREAD_KEYS
/* CPU affinity mask helpers ***************************************************/
#ifdef CONFIG_SMP
/* void CPU_ZERO(FAR cpu_set_t *set); */
# define CPU_ZERO(s) do { *(s) = 0; } while (0)
/* void CPU_SET(int cpu, FAR cpu_set_t *set); */
# define CPU_SET(c,s) do { *(s) |= (1 << (c)); } while (0)
/* void CPU_CLR(int cpu, FAR cpu_set_t *set); */
# define CPU_CLR(c,s) do { *(s) &= ~(1 << (c)); } while (0)
/* int CPU_ISSET(int cpu, FAR const cpu_set_t *set); */
# define CPU_ISSET(c,s) ((*(s) & (1 << (c))) != 0)
/* int CPU_COUNT(FAR const cpu_set_t *set); */
#define CPU_COUNT(s) sched_cpu_count(s)
/* void CPU_AND(FAR cpu_set_t *destset, FAR const cpu_set_t *srcset1,
* FAR const cpu_set_t *srcset2);
*/
# define CPU_AND(d,s1,s2) do { *(d) = *(s1) & *(s2); } while (0)
/* void CPU_OR(FAR cpu_set_t *destset, FAR const cpu_set_t *srcset1,
* FAR const cpu_set_t *srcset2);
*/
# define CPU_OR(d,s1,s2) do { *(d) = *(s1) | *(s2); } while (0)
/* void CPU_XOR(FAR cpu_set_t *destset, FAR const cpu_set_t *srcset1,
* FAR const cpu_set_t *srcset2);
*/
# define CPU_XOR(d,s1,s2) do { *(d) = *(s1) ^ *(s2); } while (0)
/* int CPU_EQUAL(FAR const cpu_set_t *set1, FAR const cpu_set_t *set2); */
# define CPU_EQUAL(s1,s2) (*(s2) == *(s2))
/* FAR cpu_set_t *CPU_ALLOC(int num_cpus); */
# define CPU_ALLOC(n) (FAR cpu_set_t *)malloc(sizeof(cpu_set_t));
/* void CPU_FREE(cpu_set_t *set); */
# define CPU_ALLOC(s) free(s)
/* size_t CPU_ALLOC_SIZE(int num_cpus); */
# define CPU_ALLOC_SIZE(n) sizeof(cpu_set_t)
/* void CPU_ZERO_S(size_t setsize, FAR cpu_set_t *set); */
# define CPU_ZERO_S(n,s) CPU_ZERO_S(s)
/* void CPU_SET_S(int cpu, size_t setsize, FAR cpu_set_t *set); */
# define CPU_SET_S(c,n,s) CPU_SET(c,s)
/* void CPU_CLR_S(int cpu, size_t setsize, FAR cpu_set_t *set); */
# define CPU_CLR_S(c,n,s) CPU_CLR(c,s)
/* int CPU_ISSET_S(int cpu, size_t setsize, FAR const cpu_set_t *set); */
# define CPU_ISSET_S(c,n,s) CPU_ISSET(c,s)
/* int CPU_COUNT_S(size_t setsize, FAR const cpu_set_t *set); */
# define CPU_COUNT_S(n,s) CPU_COUNT(s)
/* void CPU_AND_S(size_t setsize, FAR cpu_set_t *destset,
* FAR const cpu_set_t *srcset1,
* FAR const cpu_set_t *srcset2);
*/
# define CPU_AND_S(n,d,s1,s2) CPU_AND(d,s1,s2)
/* void CPU_OR_S(size_t setsize, FAR cpu_set_t *destset,
* FAR const cpu_set_t *srcset1,
* FAR const cpu_set_t *srcset2);
*/
# define CPU_OR_S(n,d,s1,s2) CPU_OR(d,s1,s2)
/* void CPU_XOR_S(size_t setsize, FAR cpu_set_t *destset,
* FAR const cpu_set_t *srcset1,
* FAR const cpu_set_t *srcset2);
*/
# define CPU_XOR_S(n,d,s1,s2) CPU_XOR(d,s1,s2)
/* int CPU_EQUAL_S(size_t setsize, FAR const cpu_set_t *set1,
* FAR const cpu_set_t *set2);
*/
# define CPU_EQUAL_S(n,s1,s2) CPU_EQUAL(s1,s2)
#endif /* CONFIG_SMP */
/********************************************************************************
* Public Type Definitions
********************************************************************************/
@@ -137,7 +244,8 @@ int sched_rr_get_interval(pid_t pid, FAR struct timespec *interval);
int sched_setaffinity(pid_t pid, size_t cpusetsize,
FAR const cpu_set_t *mask);
int sched_getaffinity(pid_t pid, size_t cpusetsize, FAR cpu_set_t *mask);
#endif
int sched_cpu_count(FAR const cpu_set_t *set);
#endif /* CONFIG_SMP */
/* Task Switching Interfaces (non-standard) */