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123 lines
3 KiB
C
123 lines
3 KiB
C
#ifndef Py_INTERNAL_TRACEMALLOC_H
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#define Py_INTERNAL_TRACEMALLOC_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef Py_BUILD_CORE
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# error "this header requires Py_BUILD_CORE define"
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#endif
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#include "pycore_hashtable.h" // _Py_hashtable_t
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/* Trace memory blocks allocated by PyMem_RawMalloc() */
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#define TRACE_RAW_MALLOC
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struct _PyTraceMalloc_Config {
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/* Module initialized?
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Variable protected by the GIL */
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enum {
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TRACEMALLOC_NOT_INITIALIZED,
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TRACEMALLOC_INITIALIZED,
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TRACEMALLOC_FINALIZED
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} initialized;
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/* Is tracemalloc tracing memory allocations?
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Variable protected by the GIL */
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int tracing;
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/* limit of the number of frames in a traceback, 1 by default.
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Variable protected by the GIL. */
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int max_nframe;
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};
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/* Pack the frame_t structure to reduce the memory footprint on 64-bit
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architectures: 12 bytes instead of 16. */
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#if defined(_MSC_VER)
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#pragma pack(push, 4)
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#endif
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struct
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#ifdef __GNUC__
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__attribute__((packed))
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#endif
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tracemalloc_frame {
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/* filename cannot be NULL: "<unknown>" is used if the Python frame
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filename is NULL */
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PyObject *filename;
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unsigned int lineno;
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};
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#ifdef _MSC_VER
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#pragma pack(pop)
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#endif
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struct tracemalloc_traceback {
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Py_uhash_t hash;
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/* Number of frames stored */
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uint16_t nframe;
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/* Total number of frames the traceback had */
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uint16_t total_nframe;
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struct tracemalloc_frame frames[1];
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};
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struct _tracemalloc_runtime_state {
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struct _PyTraceMalloc_Config config;
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/* Protected by the GIL */
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struct {
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PyMemAllocatorEx mem;
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PyMemAllocatorEx raw;
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PyMemAllocatorEx obj;
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} allocators;
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#if defined(TRACE_RAW_MALLOC)
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PyThread_type_lock tables_lock;
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#endif
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/* Size in bytes of currently traced memory.
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Protected by TABLES_LOCK(). */
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size_t traced_memory;
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/* Peak size in bytes of traced memory.
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Protected by TABLES_LOCK(). */
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size_t peak_traced_memory;
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/* Hash table used as a set to intern filenames:
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PyObject* => PyObject*.
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Protected by the GIL */
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_Py_hashtable_t *filenames;
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/* Buffer to store a new traceback in traceback_new().
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Protected by the GIL. */
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struct tracemalloc_traceback *traceback;
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/* Hash table used as a set to intern tracebacks:
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traceback_t* => traceback_t*
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Protected by the GIL */
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_Py_hashtable_t *tracebacks;
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/* pointer (void*) => trace (trace_t*).
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Protected by TABLES_LOCK(). */
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_Py_hashtable_t *traces;
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/* domain (unsigned int) => traces (_Py_hashtable_t).
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Protected by TABLES_LOCK(). */
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_Py_hashtable_t *domains;
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struct tracemalloc_traceback empty_traceback;
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Py_tss_t reentrant_key;
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};
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#define _tracemalloc_runtime_state_INIT \
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{ \
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.config = { \
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.initialized = TRACEMALLOC_NOT_INITIALIZED, \
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.tracing = 0, \
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.max_nframe = 1, \
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}, \
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.reentrant_key = Py_tss_NEEDS_INIT, \
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}
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#ifdef __cplusplus
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}
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#endif
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#endif // !Py_INTERNAL_TRACEMALLOC_H
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