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1 /* Static DTrace probes interface */
2 
3 #ifndef Py_DTRACE_H
4 #define Py_DTRACE_H
5 #ifdef __cplusplus
6 extern "C" {
7 #endif
8 
9 #ifdef WITH_DTRACE
10 
11 #include "pydtrace_probes.h"
12 
13 /* pydtrace_probes.h, on systems with DTrace, is auto-generated to include
14    `PyDTrace_{PROBE}` and `PyDTrace_{PROBE}_ENABLED()` macros for every probe
15    defined in pydtrace_provider.d.
16 
17    Calling these functions must be guarded by a `PyDTrace_{PROBE}_ENABLED()`
18    check to minimize performance impact when probing is off. For example:
19 
20        if (PyDTrace_FUNCTION_ENTRY_ENABLED())
21            PyDTrace_FUNCTION_ENTRY(f);
22 */
23 
24 #else
25 
26 /* Without DTrace, compile to nothing. */
27 
28 static inline void PyDTrace_LINE(const char *arg0, const char *arg1, int arg2) {}
29 static inline void PyDTrace_FUNCTION_ENTRY(const char *arg0, const char *arg1, int arg2)  {}
30 static inline void PyDTrace_FUNCTION_RETURN(const char *arg0, const char *arg1, int arg2) {}
31 static inline void PyDTrace_GC_START(int arg0) {}
32 static inline void PyDTrace_GC_DONE(int arg0) {}
33 static inline void PyDTrace_INSTANCE_NEW_START(int arg0) {}
34 static inline void PyDTrace_INSTANCE_NEW_DONE(int arg0) {}
35 static inline void PyDTrace_INSTANCE_DELETE_START(int arg0) {}
36 static inline void PyDTrace_INSTANCE_DELETE_DONE(int arg0) {}
37 static inline void PyDTrace_IMPORT_FIND_LOAD_START(const char *arg0) {}
38 static inline void PyDTrace_IMPORT_FIND_LOAD_DONE(const char *arg0, int arg1) {}
39 
40 static inline int PyDTrace_LINE_ENABLED(void) { return 0; }
41 static inline int PyDTrace_FUNCTION_ENTRY_ENABLED(void) { return 0; }
42 static inline int PyDTrace_FUNCTION_RETURN_ENABLED(void) { return 0; }
43 static inline int PyDTrace_GC_START_ENABLED(void) { return 0; }
44 static inline int PyDTrace_GC_DONE_ENABLED(void) { return 0; }
45 static inline int PyDTrace_INSTANCE_NEW_START_ENABLED(void) { return 0; }
46 static inline int PyDTrace_INSTANCE_NEW_DONE_ENABLED(void) { return 0; }
47 static inline int PyDTrace_INSTANCE_DELETE_START_ENABLED(void) { return 0; }
48 static inline int PyDTrace_INSTANCE_DELETE_DONE_ENABLED(void) { return 0; }
49 static inline int PyDTrace_IMPORT_FIND_LOAD_START_ENABLED(void) { return 0; }
50 static inline int PyDTrace_IMPORT_FIND_LOAD_DONE_ENABLED(void) { return 0; }
51 
52 #endif /* !WITH_DTRACE */
53 
54 #ifdef __cplusplus
55 }
56 #endif
57 #endif /* !Py_DTRACE_H */
58