1 #ifndef _LIBRINGBUFFER_SMP_H
2 #define _LIBRINGBUFFER_SMP_H
7 * Copyright 2011 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 * Dual LGPL v2.1/GPL v2 license.
12 #include <lttng/core.h>
16 * 4kB of per-cpu data available. Enough to hold the control structures,
17 * but not ring buffers.
19 #define PER_CPU_MEM_SIZE 4096
21 extern int __num_possible_cpus
;
22 extern void _get_num_possible_cpus(void);
25 int num_possible_cpus(void)
27 if (!__num_possible_cpus
)
28 _get_num_possible_cpus();
29 return __num_possible_cpus
;
32 #define for_each_possible_cpu(cpu) \
33 for ((cpu) = 0; (cpu) < num_possible_cpus(); (cpu)++)
35 #endif /* _LIBRINGBUFFER_SMP_H */
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