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1#ifndef _XTRACE_TLS_H_
2#define _XTRACE_TLS_H_
3
4#include <stddef.h>
5#include <stdbool.h>
6#include <mach/port.h>
7#include "base.h"
8
9XTRACE_DECLARATIONS_C_BEGIN
10
11typedef void (*xtrace_tls_destructor_f)(void* value);
12
13#define DEFINE_XTRACE_TLS_VAR(type, name, default_value, destructor) \
14 static char name ## _key = '\0'; \
15 XTRACE_INLINE \
16 void destroy_ ## name(void* value) { \
17 void (*dtor)(type*) = (destructor); \
18 if (dtor) { \
19 dtor((type*)value); \
20 } \
21 }; \
22 XTRACE_INLINE \
23 type get_ ## name(void) { \
24 bool created = false; \
25 type* var = (type*)xtrace_tls(&(name ## _key), sizeof(type), &created, destroy_ ## name); \
26 if (created) { \
27 *var = default_value; \
28 } \
29 return *var; \
30 }; \
31 XTRACE_INLINE \
32 void set_ ## name(type value) { \
33 bool created = false; \
34 type* var = (type*)xtrace_tls(&(name ## _key), sizeof(type), NULL, destroy_ ## name); \
35 *var = value; \
36 }; \
37 XTRACE_INLINE \
38 type* get_ptr_ ## name(void) { \
39 bool created = false; \
40 type* var = (type*)xtrace_tls(&(name ## _key), sizeof(type), &created, destroy_ ## name); \
41 if (created) { \
42 *var = default_value; \
43 } \
44 return var; \
45 };
46
47void* xtrace_tls(void* key, size_t size, bool* created, xtrace_tls_destructor_f destructor);
48void xtrace_tls_thread_cleanup(void);
49
50XTRACE_DECLARATIONS_C_END
51
52#endif // _XTRACE_TLS_H_