diff options
author | Steve Dower <steve.dower@microsoft.com> | 2017-02-04 15:05:40 -0800 |
---|---|---|
committer | Steve Dower <steve.dower@microsoft.com> | 2017-02-04 15:05:40 -0800 |
commit | b2fa705fd3887c326e811c418469c784353027f4 (patch) | |
tree | b3428f73de91453edbfd4df1a5d4a212d182eb44 /Include/pymem.h | |
parent | 134e58fd3aaa2e91390041e143f3f0a21a60142b (diff) | |
parent | b53654b6dbfce8318a7d4d1cdaddca7a7fec194b (diff) | |
download | cpython-b2fa705fd3887c326e811c418469c784353027f4.tar.gz |
Issue #29392: Prevent crash when passing invalid arguments into msvcrt module.
Diffstat (limited to 'Include/pymem.h')
-rw-r--r-- | Include/pymem.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/Include/pymem.h b/Include/pymem.h index 043db64deb..a7eb4d2e59 100644 --- a/Include/pymem.h +++ b/Include/pymem.h @@ -16,8 +16,51 @@ PyAPI_FUNC(void *) PyMem_RawMalloc(size_t size); PyAPI_FUNC(void *) PyMem_RawCalloc(size_t nelem, size_t elsize); PyAPI_FUNC(void *) PyMem_RawRealloc(void *ptr, size_t new_size); PyAPI_FUNC(void) PyMem_RawFree(void *ptr); + +/* Configure the Python memory allocators. Pass NULL to use default + allocators. */ +PyAPI_FUNC(int) _PyMem_SetupAllocators(const char *opt); + +#ifdef WITH_PYMALLOC +PyAPI_FUNC(int) _PyMem_PymallocEnabled(void); #endif +/* Identifier of an address space (domain) in tracemalloc */ +typedef unsigned int _PyTraceMalloc_domain_t; + +/* Track an allocated memory block in the tracemalloc module. + Return 0 on success, return -1 on error (failed to allocate memory to store + the trace). + + Return -2 if tracemalloc is disabled. + + If memory block is already tracked, update the existing trace. */ +PyAPI_FUNC(int) _PyTraceMalloc_Track( + _PyTraceMalloc_domain_t domain, + uintptr_t ptr, + size_t size); + +/* Untrack an allocated memory block in the tracemalloc module. + Do nothing if the block was not tracked. + + Return -2 if tracemalloc is disabled, otherwise return 0. */ +PyAPI_FUNC(int) _PyTraceMalloc_Untrack( + _PyTraceMalloc_domain_t domain, + uintptr_t ptr); + +/* Get the traceback where a memory block was allocated. + + Return a tuple of (filename: str, lineno: int) tuples. + + Return None if the tracemalloc module is disabled or if the memory block + is not tracked by tracemalloc. + + Raise an exception and return NULL on error. */ +PyAPI_FUNC(PyObject*) _PyTraceMalloc_GetTraceback( + _PyTraceMalloc_domain_t domain, + uintptr_t ptr); +#endif /* !Py_LIMITED_API */ + /* BEWARE: @@ -58,7 +101,9 @@ PyAPI_FUNC(void) PyMem_RawFree(void *ptr); */ PyAPI_FUNC(void *) PyMem_Malloc(size_t size); +#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03050000 PyAPI_FUNC(void *) PyMem_Calloc(size_t nelem, size_t elsize); +#endif PyAPI_FUNC(void *) PyMem_Realloc(void *ptr, size_t new_size); PyAPI_FUNC(void) PyMem_Free(void *ptr); |