1 /*********************************************************************** 2 * * 3 * This software is part of the ast package * 4 * Copyright (c) 1985-2008 AT&T Intellectual Property * 5 * and is licensed under the * 6 * Common Public License, Version 1.0 * 7 * by AT&T Intellectual Property * 8 * * 9 * A copy of the License is available at * 10 * http://www.opensource.org/licenses/cpl1.0.txt * 11 * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 12 * * 13 * Information and Software Systems Research * 14 * AT&T Research * 15 * Florham Park NJ * 16 * * 17 * Glenn Fowler <gsf@research.att.com> * 18 * David Korn <dgk@research.att.com> * 19 * Phong Vo <kpv@research.att.com> * 20 * * 21 ***********************************************************************/ 22 #ifndef _VMALLOC_H 23 #define _VMALLOC_H 1 24 25 /* Public header file for the virtual malloc package. 26 ** 27 ** Written by Kiem-Phong Vo, kpv@research.att.com, 01/16/94. 28 */ 29 30 #define VMALLOC_VERSION 20070911L 31 32 #if _PACKAGE_ast 33 #include <ast_std.h> 34 #else 35 #include <ast_common.h> 36 #endif 37 38 typedef struct _vmalloc_s Vmalloc_t; 39 typedef struct _vmstat_s Vmstat_t; 40 typedef struct _vmdisc_s Vmdisc_t; 41 typedef struct _vmethod_s Vmethod_t; 42 typedef Void_t* (*Vmemory_f)_ARG_((Vmalloc_t*, Void_t*, size_t, size_t, Vmdisc_t*)); 43 typedef int (*Vmexcept_f)_ARG_((Vmalloc_t*, int, Void_t*, Vmdisc_t*)); 44 45 struct _vmstat_s 46 { int n_busy; /* number of busy blocks */ 47 int n_free; /* number of free blocks */ 48 size_t s_busy; /* total amount of busy space */ 49 size_t s_free; /* total amount of free space */ 50 size_t m_busy; /* largest busy piece */ 51 size_t m_free; /* largest free piece */ 52 int n_seg; /* number of segments */ 53 size_t extent; /* total size of region */ 54 }; 55 56 struct _vmdisc_s 57 { Vmemory_f memoryf; /* memory manipulator */ 58 Vmexcept_f exceptf; /* exception handler */ 59 size_t round; /* rounding requirement */ 60 }; 61 62 struct _vmethod_s 63 { Void_t* (*allocf)_ARG_((Vmalloc_t*,size_t)); 64 Void_t* (*resizef)_ARG_((Vmalloc_t*,Void_t*,size_t,int)); 65 int (*freef)_ARG_((Vmalloc_t*,Void_t*)); 66 long (*addrf)_ARG_((Vmalloc_t*,Void_t*)); 67 long (*sizef)_ARG_((Vmalloc_t*,Void_t*)); 68 int (*compactf)_ARG_((Vmalloc_t*)); 69 Void_t* (*alignf)_ARG_((Vmalloc_t*,size_t,size_t)); 70 unsigned short meth; 71 }; 72 73 struct _vmalloc_s 74 { Vmethod_t meth; /* method for allocation */ 75 char* file; /* file name */ 76 int line; /* line number */ 77 Void_t* func; /* calling function */ 78 #ifdef _VM_PRIVATE_ 79 _VM_PRIVATE_ 80 #endif 81 }; 82 83 #undef VM_FLAGS /* solaris sys kernel clash */ 84 85 #define VM_TRUST 0000001 /* forgo some security checks */ 86 #define VM_TRACE 0000002 /* generate trace */ 87 #define VM_DBCHECK 0000004 /* check for boundary overwrite */ 88 #define VM_DBABORT 0000010 /* abort on any warning */ 89 #define VM_FLAGS 0000017 /* user-settable flags */ 90 91 #define VM_MTBEST 0000100 /* Vmbest method */ 92 #define VM_MTPOOL 0000200 /* Vmpool method */ 93 #define VM_MTLAST 0000400 /* Vmlast method */ 94 #define VM_MTDEBUG 0001000 /* Vmdebug method */ 95 #define VM_MTPROFILE 0002000 /* Vmdebug method */ 96 #define VM_METHODS 0003700 /* available allocation methods */ 97 98 #define VM_RSCOPY 0000001 /* copy old contents */ 99 #define VM_RSMOVE 0000002 /* old contents is moveable */ 100 #define VM_RSZERO 0000004 /* clear new space */ 101 102 /* exception types */ 103 #define VM_OPEN 0 /* region being opened */ 104 #define VM_CLOSE 1 /* announce being closed */ 105 #define VM_NOMEM 2 /* can't obtain memory */ 106 #define VM_BADADDR 3 /* bad addr in vmfree/vmresize */ 107 #define VM_DISC 4 /* discipline being changed */ 108 #define VM_ALLOC 5 /* announcement from vmalloc() */ 109 #define VM_FREE 6 /* announcement from vmfree() */ 110 #define VM_RESIZE 7 /* announcement from vmresize() */ 111 112 _BEGIN_EXTERNS_ /* public data */ 113 #if _BLD_vmalloc && defined(__EXPORT__) 114 #define extern extern __EXPORT__ 115 #endif 116 #if !_BLD_vmalloc && defined(__IMPORT__) 117 #define extern extern __IMPORT__ 118 #endif 119 120 extern Vmethod_t* Vmbest; /* best allocation */ 121 extern Vmethod_t* Vmlast; /* last-block allocation */ 122 extern Vmethod_t* Vmpool; /* pool allocation */ 123 extern Vmethod_t* Vmdebug; /* allocation with debugging */ 124 extern Vmethod_t* Vmprofile; /* profiling memory usage */ 125 126 extern Vmdisc_t* Vmdcheap; /* heap discipline */ 127 extern Vmdisc_t* Vmdcsbrk; /* sbrk discipline */ 128 129 extern Vmalloc_t* Vmheap; /* heap region */ 130 extern Vmalloc_t* Vmregion; /* malloc region */ 131 132 #undef extern 133 _END_EXTERNS_ 134 135 _BEGIN_EXTERNS_ /* public functions */ 136 #if _BLD_vmalloc && defined(__EXPORT__) 137 #define extern __EXPORT__ 138 #endif 139 140 extern Vmalloc_t* vmopen _ARG_(( Vmdisc_t*, Vmethod_t*, int )); 141 extern int vmclose _ARG_(( Vmalloc_t* )); 142 extern int vmclear _ARG_(( Vmalloc_t* )); 143 extern int vmcompact _ARG_(( Vmalloc_t* )); 144 145 extern Vmdisc_t* vmdisc _ARG_(( Vmalloc_t*, Vmdisc_t* )); 146 147 extern Vmalloc_t* vmmopen _ARG_(( char*, Void_t*, size_t )); 148 extern Void_t* vmmset _ARG_((Vmalloc_t*, int, Void_t*, int)); 149 150 extern Void_t* vmalloc _ARG_(( Vmalloc_t*, size_t )); 151 extern Void_t* vmalign _ARG_(( Vmalloc_t*, size_t, size_t )); 152 extern Void_t* vmresize _ARG_(( Vmalloc_t*, Void_t*, size_t, int )); 153 extern Void_t* vmgetmem _ARG_(( Vmalloc_t*, Void_t*, size_t )); 154 extern int vmfree _ARG_(( Vmalloc_t*, Void_t* )); 155 156 extern long vmaddr _ARG_(( Vmalloc_t*, Void_t* )); 157 extern long vmsize _ARG_(( Vmalloc_t*, Void_t* )); 158 159 extern Vmalloc_t* vmregion _ARG_(( Void_t* )); 160 extern Void_t* vmsegment _ARG_(( Vmalloc_t*, Void_t* )); 161 extern int vmset _ARG_(( Vmalloc_t*, int, int )); 162 163 extern Void_t* vmdbwatch _ARG_(( Void_t* )); 164 extern int vmdbcheck _ARG_(( Vmalloc_t* )); 165 extern int vmdebug _ARG_(( int )); 166 167 extern int vmprofile _ARG_(( Vmalloc_t*, int )); 168 169 extern int vmtrace _ARG_(( int )); 170 extern int vmtrbusy _ARG_((Vmalloc_t*)); 171 172 extern int vmstat _ARG_((Vmalloc_t*, Vmstat_t*)); 173 174 extern int vmwalk _ARG_((Vmalloc_t*, 175 int(*)(Vmalloc_t*,Void_t*,size_t,Vmdisc_t*))); 176 extern char* vmstrdup _ARG_((Vmalloc_t*, const char*)); 177 178 #if !defined(_BLD_vmalloc) && !defined(_AST_STD_H) && \ 179 !defined(__stdlib_h) && !defined(__STDLIB_H) && \ 180 !defined(_STDLIB_INCLUDED) && !defined(_INC_STDLIB) 181 extern Void_t* malloc _ARG_(( size_t )); 182 extern Void_t* realloc _ARG_(( Void_t*, size_t )); 183 extern void free _ARG_(( Void_t* )); 184 extern void cfree _ARG_(( Void_t* )); 185 extern Void_t* calloc _ARG_(( size_t, size_t )); 186 extern Void_t* memalign _ARG_(( size_t, size_t )); 187 extern Void_t* valloc _ARG_(( size_t )); 188 #endif 189 190 #undef extern 191 _END_EXTERNS_ 192 193 /* to coerce any value to a Vmalloc_t*, make ANSI happy */ 194 #define _VM_(vm) ((Vmalloc_t*)(vm)) 195 196 /* enable recording of where a call originates from */ 197 #ifdef VMFL 198 199 #if defined(__FILE__) 200 #define _VMFILE_(vm) (_VM_(vm)->file = (char*)__FILE__) 201 #else 202 #define _VMFILE_(vm) (_VM_(vm)->file = 0) 203 #endif 204 205 #if defined(__LINE__) 206 #define _VMLINE_(vm) (_VM_(vm)->line = __LINE__) 207 #else 208 #define _VMLINE_(vm) (_VM_(vm)->line = 0) 209 #endif 210 211 #if defined(__FUNCTION__) 212 #define _VMFUNC_(vm) (_VM_(vm)->func = (Void_t*)__FUNCTION__) 213 #else 214 #define _VMFUNC_(vm) (_VM_(vm)->func = 0) 215 #endif 216 217 #define _VMFL_(vm) (_VMFILE_(vm), _VMLINE_(vm), _VMFUNC_(vm)) 218 219 #define vmalloc(vm,sz) (_VMFL_(vm), \ 220 (*(_VM_(vm)->meth.allocf))((vm),(sz)) ) 221 #define vmresize(vm,d,sz,type) (_VMFL_(vm), \ 222 (*(_VM_(vm)->meth.resizef))\ 223 ((vm),(Void_t*)(d),(sz),(type)) ) 224 #define vmfree(vm,d) (_VMFL_(vm), \ 225 (*(_VM_(vm)->meth.freef))((vm),(Void_t*)(d)) ) 226 #define vmalign(vm,sz,align) (_VMFL_(vm), \ 227 (*(_VM_(vm)->meth.alignf))((vm),(sz),(align)) ) 228 229 #undef malloc 230 #undef realloc 231 #undef calloc 232 #undef free 233 #undef memalign 234 #undef valloc 235 236 #if _map_malloc 237 238 #define malloc(s) (_VMFL_(Vmregion), _ast_malloc((size_t)(s)) ) 239 #define realloc(d,s) (_VMFL_(Vmregion), _ast_realloc((Void_t*)(d),(size_t)(s)) ) 240 #define calloc(n,s) (_VMFL_(Vmregion), _ast_calloc((size_t)n, (size_t)(s)) ) 241 #define free(d) (_VMFL_(Vmregion), _ast_free((Void_t*)(d)) ) 242 #define memalign(a,s) (_VMFL_(Vmregion), _ast_memalign((size_t)(a),(size_t)(s)) ) 243 #define valloc(s) (_VMFL_(Vmregion), _ast_valloc((size_t)(s) ) 244 245 #else 246 247 #if !_std_malloc 248 249 #if __STD_C || defined(__STDPP__) || defined(__GNUC__) 250 #define malloc(s) ( _VMFL_(Vmregion), (malloc)((size_t)(s)) ) 251 #define realloc(d,s) ( _VMFL_(Vmregion), (realloc)((Void_t*)(d),(size_t)(s)) ) 252 #define calloc(n,s) ( _VMFL_(Vmregion), (calloc)((size_t)n, (size_t)(s)) ) 253 #define free(d) ( _VMFL_(Vmregion), (free)((Void_t*)(d)) ) 254 #define memalign(a,s) ( _VMFL_(Vmregion), (memalign)((size_t)(a),(size_t)(s)) ) 255 #define valloc(s) ( _VMFL_(Vmregion), (valloc)((size_t)(s)) ) 256 #ifndef strdup 257 #define strdup(s) ( _VMFL_(Vmregion), (strdup)((char*)(s)) ) 258 #endif 259 260 #else 261 262 #define _VMNM_(a,b,c,d,e,f) a/**/b/**/c/**/d/**/e/**/f 263 #define malloc(s) ( _VMFL_(Vmregion), _VMNM_(mallo,/,*,*,/,c)\ 264 ( (size_t)(s)) ) 265 #define realloc(d,s) ( _VMFL_(Vmregion), _VMNM_(reallo,/,*,*,/,c)\ 266 ( (Void_t*)(d),(size_t)(s)) ) 267 #define calloc(n,s) ( _VMFL_(Vmregion), _VMNM_(callo,/,*,*,/,c)\ 268 ( (size_t)n, (size_t)(s)) ) 269 #define free(d) ( _VMFL_(Vmregion), _VMNM_(fre,/,*,*,/,e)((Void_t*)(d)) ) 270 #define memalign(a,s) ( _VMFL_(Vmregion), _VMNM_(memalig,/,*,*,/,n)\ 271 ( (size_t)(a),(size_t)(s)) ) 272 #define valloc(s) ( _VMFL_(Vmregion), _VMNM_(vallo,/,*,*,/,c)\ 273 ( (size_t)(s)) ) 274 #ifndef strdup 275 #define strdup(s) ( _VMFL_(Vmregion), _VMNM_(strdu,/,*,*,/,p)\ 276 ((char*)(s)) ) 277 #endif 278 279 #endif /*__STD_C || defined(__STDPP__) || defined(__GNUC__)*/ 280 281 #define cfree(d) free(d) 282 283 #endif /* !_std_malloc */ 284 285 #endif /* _map_malloc */ 286 287 #endif /*VMFL*/ 288 289 /* non-debugging/profiling allocation calls */ 290 #ifndef vmalloc 291 #define vmalloc(vm,sz) (*(_VM_(vm)->meth.allocf))((vm),(sz)) 292 #endif 293 294 #ifndef vmresize 295 #define vmresize(vm,d,sz,type) (*(_VM_(vm)->meth.resizef))\ 296 ((vm),(Void_t*)(d),(sz),(type)) 297 #endif 298 299 #ifndef vmfree 300 #define vmfree(vm,d) (*(_VM_(vm)->meth.freef))((vm),(Void_t*)(d)) 301 #endif 302 303 #ifndef vmalign 304 #define vmalign(vm,sz,align) (*(_VM_(vm)->meth.alignf))((vm),(sz),(align)) 305 #endif 306 307 #define vmaddr(vm,addr) (*(_VM_(vm)->meth.addrf))((vm),(Void_t*)(addr)) 308 #define vmsize(vm,addr) (*(_VM_(vm)->meth.sizef))((vm),(Void_t*)(addr)) 309 #define vmcompact(vm) (*(_VM_(vm)->meth.compactf))((vm)) 310 #define vmoldof(v,p,t,n,x) (t*)vmresize((v), (p), sizeof(t)*(n)+(x), \ 311 (VM_RSMOVE) ) 312 #define vmnewof(v,p,t,n,x) (t*)vmresize((v), (p), sizeof(t)*(n)+(x), \ 313 (VM_RSMOVE|VM_RSCOPY|VM_RSZERO) ) 314 315 #endif /* _VMALLOC_H */ 316