8d82847a29
(_csbrk): Make logic for detecting when to alloc cognizant of initialization condition. (_cmalloc): Use a structure to hold bucket size and heap chain pointer. Store pointer to next freed block in bucket size location so that it will be easy to see if a block is allocated. (_cfree): Store pointer to next freed block in bucket size location. (_crealloc): Use macro to retrieve bucket size. (cygheap_init): Eliminate. (cygheap_fixup_in_child): Add second argument to determine if we were execed or not. In execed case, walk the heap, cleaning up any orphaned blocks. * cygheap.h: Add a "MAX" value to cygheap_types. Remove cygheap_init declaration. Accomodate new argument to cygheap_fixup_in child. * fork.cc (fork): Accomodate extra argument to cygheap_fixup_in_child. * dcrt0.cc (dll_crt0_1): Ditto. Remove call to cygheap_init.
43 lines
1003 B
C
43 lines
1003 B
C
/* cygheap.h: Cygwin heap manager.
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Copyright 2000 Cygnus Solutions.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#undef cfree
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enum cygheap_types
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{
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HEAP_FHANDLER,
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HEAP_STR,
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HEAP_ARGV,
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HEAP_BUF,
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HEAP_1_START,
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HEAP_1_STR,
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HEAP_1_ARGV,
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HEAP_1_BUF,
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HEAP_1_EXEC,
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HEAP_1_MAX = 100
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};
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#define CYGHEAPSIZE ((1000 * sizeof (fhandler_union)) + (2 * 65536))
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extern HANDLE cygheap;
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extern HANDLE cygheap_max;
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#define incygheap(s) (cygheap && ((char *) (s) >= (char *) cygheap) && ((char *) (s) <= ((char *) cygheap) + CYGHEAPSIZE))
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extern "C" {
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void __stdcall cfree (void *);
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void __stdcall cygheap_fixup_in_child (HANDLE, bool);
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void *__stdcall cmalloc (cygheap_types, DWORD);
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void *__stdcall crealloc (void *, DWORD);
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void *__stdcall ccalloc (cygheap_types, DWORD, DWORD);
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char *__stdcall cstrdup (const char *);
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char *__stdcall cstrdup1 (const char *);
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}
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