Mercurial > hg > xemacs-beta
annotate src/mc-alloc.h @ 5887:6eca500211f4
Prototype for X509_check_host() has changed, detect this in configure.ac
ChangeLog addition:
2015-04-09 Aidan Kehoe <kehoea@parhasard.net>
* configure.ac:
If X509_check_host() is available, check the number of arguments
it takes. Don't use it if it takes any number of arguments other
than five. Also don't use it if <openssl/x509v3.h> does not
declare it, since if that is so there is no portable way to tell
how many arguments it should take, and so we would end up smashing
the stack.
* configure: Regenerate.
src/ChangeLog addition:
2015-04-09 Aidan Kehoe <kehoea@parhasard.net>
* tls.c:
#include <openssl/x509v3.h> for its prototype for
X509_check_host().
* tls.c (tls_open):
Pass the new fifth argument to X509_check_host().
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Thu, 09 Apr 2015 14:27:02 +0100 |
| parents | 308d34e9f07d |
| children |
| rev | line source |
|---|---|
| 2720 | 1 /* New allocator for XEmacs. |
| 2 Copyright (C) 2005 Marcus Crestani. | |
|
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3 Copyright (C) 2010 Ben Wing. |
| 2720 | 4 |
| 5 This file is part of XEmacs. | |
| 6 | |
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7 XEmacs is free software: you can redistribute it and/or modify it |
| 2720 | 8 under the terms of the GNU General Public License as published by the |
|
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9 Free Software Foundation, either version 3 of the License, or (at your |
|
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10 option) any later version. |
| 2720 | 11 |
| 12 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
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18 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 2720 | 19 |
| 20 /* Synched up with: Not in FSF. */ | |
| 21 | |
| 22 #ifndef INCLUDED_mc_alloc_h_ | |
| 23 #define INCLUDED_mc_alloc_h_ | |
| 24 | |
| 25 /*--- prototypes -------------------------------------------------------*/ | |
| 26 | |
| 27 BEGIN_C_DECLS | |
| 28 | |
| 3305 | 29 /* Set to 1 if memory becomes short. */ |
| 30 extern EMACS_INT memory_shortage; | |
| 2720 | 31 |
| 32 | |
| 3092 | 33 /* Internal Allocator Functions: */ |
| 2720 | 34 |
| 3092 | 35 /* Initialize the allocator. This has to be called prior to |
| 36 requesting memory. */ | |
| 2720 | 37 void init_mc_allocator (void); |
| 38 | |
| 3092 | 39 /* Allocate a block of memory of given size and return the pointer to |
| 40 it. */ | |
| 2720 | 41 void *mc_alloc (size_t size); |
| 42 | |
| 3092 | 43 /* Allocate a block of memory as an array with elemcount elements of |
| 44 given size and return the pointer to it. Arrays contain several | |
| 45 objects that are allocated in one consecutive block of memory with | |
| 46 each element being a fully qualified object---that is, it has a | |
| 47 Lisp object header and a mark bit. Objects like hash tables and | |
| 48 dynamic arrays use this function. */ | |
| 49 void *mc_alloc_array (size_t size, EMACS_INT elemcount); | |
| 50 | |
| 51 /* Modify the size of the memory block pointed to by ptr. Return the | |
| 52 address of the new block of given size. The content of the memory | |
| 53 block will be unchanged to the minimum of the old and new sizes: if | |
| 54 the new size is smaller, the overlaying data is cut off; if the new | |
| 55 size is bigger, the newly allocated memory will be uninitialized.*/ | |
| 2720 | 56 void *mc_realloc (void *ptr, size_t size); |
| 57 | |
| 3092 | 58 /* Modify the size of the array pointed to by ptr. Return the address |
| 59 of the new array block with elemcount elements of given size. The | |
| 60 content of the memory block will be unchanged to the minimum of the | |
| 61 old and new sizes: if the new size is smaller, the overlaying data | |
| 62 is cut off; if the new size is bigger, the newly allocated memory | |
| 63 will be uninitialized.*/ | |
| 64 void *mc_realloc_array (void *ptr, size_t size, EMACS_INT elemcount); | |
| 65 | |
| 2720 | 66 |
| 67 | |
| 68 /* Garbage collection related functions and macros: */ | |
| 69 | |
| 3092 | 70 enum mark_bit_colors |
| 71 { | |
| 72 WHITE = 0, | |
| 73 BLACK = 1, | |
| 74 GREY = 2 | |
| 75 }; | |
| 76 | |
| 77 /* Set the mark bit of the object pointed to by ptr to value.*/ | |
| 78 void set_mark_bit (void *ptr, EMACS_INT value); | |
| 79 | |
| 80 /* Return the mark bit of the object pointed to by ptr. */ | |
| 81 EMACS_INT get_mark_bit (void *ptr); | |
| 82 | |
| 83 /* mark bit macros */ | |
| 84 /* Returns true if the mark bit of the object pointed to by ptr is set. */ | |
| 85 #define MARKED_P(ptr) (get_mark_bit (ptr) != WHITE) | |
| 86 | |
| 87 /* Marks the object pointed to by ptr (sets the mark bit to 1). */ | |
| 88 #define MARK(ptr) set_mark_bit (ptr, BLACK) | |
| 89 | |
| 90 /* Unmarks the object pointed to by ptr (sets the mark bit to 0). */ | |
| 91 #define UNMARK(ptr) set_mark_bit (ptr, WHITE) | |
| 92 | |
| 93 #define MARK_WHITE(ptr) set_mark_bit (ptr, WHITE) | |
| 94 #define MARK_GREY(ptr) set_mark_bit (ptr, GREY) | |
| 95 #define MARK_BLACK(ptr) set_mark_bit (ptr, BLACK) | |
| 96 | |
| 97 #define MARKED_WHITE_P(ptr) (get_mark_bit (ptr) == WHITE) | |
| 98 #define MARKED_GREY_P(ptr) (get_mark_bit (ptr) == GREY) | |
| 99 #define MARKED_BLACK_P(ptr) (get_mark_bit (ptr) == BLACK) | |
| 2720 | 100 |
| 3092 | 101 /* The finalizer of every not marked object is called. The macro |
| 2720 | 102 MC_ALLOC_CALL_FINALIZER has to be defined and call the finalizer of |
| 3303 | 103 the object. Returns number of processed pages. */ |
| 104 EMACS_INT mc_finalize (void); | |
| 2720 | 105 |
| 3303 | 106 /* All not marked objects of the used heap are freed. Returns number |
| 107 of processed pages. */ | |
| 108 EMACS_INT mc_sweep (void); | |
| 2720 | 109 |
| 110 | |
| 111 | |
| 112 /* Portable dumper related functions and macros: */ | |
| 113 | |
| 114 /* The finalizer for disksave of every object is called to shrink the | |
| 3092 | 115 dump image. The macro MC_ALLOC_CALL_FINALIZER_FOR_DISKSAVE has to |
| 3303 | 116 be defined and call the finalizer for disksave of the object. |
| 117 Returns number of processed pages. */ | |
| 118 EMACS_INT mc_finalize_for_disksave (void); | |
| 2720 | 119 |
| 120 | |
| 121 | |
| 122 /* Functions and macros related with allocation statistics: */ | |
| 123 | |
| 124 /* Returns the real size, including overhead, which is actually alloced | |
| 125 for an object with given claimed_size. */ | |
| 126 Bytecount mc_alloced_storage_size (Bytecount claimed_size, | |
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127 struct usage_stats *stats); |
| 2720 | 128 |
| 3092 | 129 |
| 130 /* Incremental Garbage Collector / Write Barrier Support: */ | |
| 131 | |
| 132 /* Return the PAGESIZE the allocator uses. Generally equals to the | |
| 133 system's PAGESIZE. */ | |
| 134 EMACS_INT mc_get_page_size (void); | |
| 135 | |
| 136 /* Is the fault at ptr on a protected page? */ | |
| 137 EMACS_INT fault_on_protected_page (void *ptr); | |
| 138 | |
| 3303 | 139 /* Remove protection (if there) of heap page of given page header ph. |
| 140 Returns number of processed pages. */ | |
| 141 EMACS_INT protect_heap_pages (void); | |
| 3092 | 142 |
| 3303 | 143 /* Remove protection for all heap pages which are protected. Returns |
| 144 number of processed pages. */ | |
| 145 EMACS_INT unprotect_heap_pages (void); | |
| 3092 | 146 |
| 147 /* Remove protection and mark page dirty. */ | |
| 148 void unprotect_page_and_mark_dirty (void *ptr); | |
| 149 | |
| 150 /* Repush all objects on dirty pages onto the mark stack. Return | |
| 151 number of repushed objects. */ | |
| 152 int repush_all_objects_on_page (void *ptr); | |
| 153 | |
| 154 /* Mark black if object is currently grey. */ | |
| 155 EMACS_INT maybe_mark_black (void *ptr); | |
| 156 | |
| 157 /* Only for debugging---not used anywhere in the sources. */ | |
| 158 EMACS_INT object_on_heap_p (void *ptr); | |
| 159 | |
| 2720 | 160 END_C_DECLS |
| 161 | |
| 162 #endif /* INCLUDED_mc_alloc_h_ */ |