1/*********************************************************************** 2* * 3* This software is part of the ast package * 4* Copyright (c) 1985-2012 AT&T Intellectual Property * 5* and is licensed under the * 6* Eclipse Public License, Version 1.0 * 7* by AT&T Intellectual Property * 8* * 9* A copy of the License is available at * 10* http://www.eclipse.org/org/documents/epl-v10.html * 11* (with md5 checksum b35adb5213ca9657e911e9befb180842) * 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, 01/16/1994. 28*/ 29 30#define VMALLOC_VERSION 20110808L 31 32#if _PACKAGE_ast 33#include <ast_std.h> 34#else 35#include <ast_common.h> 36#endif 37 38typedef struct _vmalloc_s Vmalloc_t; 39typedef struct _vmstat_s Vmstat_t; 40typedef struct _vmdisc_s Vmdisc_t; 41typedef struct _vmethod_s Vmethod_t; 42typedef struct _vmdata_s Vmdata_t; 43typedef Void_t* (*Vmemory_f)_ARG_((Vmalloc_t*, Void_t*, size_t, size_t, Vmdisc_t*)); 44typedef int (*Vmexcept_f)_ARG_((Vmalloc_t*, int, Void_t*, Vmdisc_t*)); 45 46struct _vmstat_s 47{ int n_busy; /* number of busy blocks */ 48 int n_free; /* number of free blocks */ 49 size_t s_busy; /* total amount of busy space */ 50 size_t s_free; /* total amount of free space */ 51 size_t m_busy; /* largest busy piece */ 52 size_t m_free; /* largest free piece */ 53 int n_seg; /* number of segments */ 54 size_t extent; /* total size of region */ 55 int n_region; /* #parallel regions (Vmregion) */ 56 int n_open; /* #calls that finds open reg */ 57 int n_lock; /* #calls where reg was locked */ 58 int n_probe; /* #probes to find a region */ 59 int mode; /* region mode bits */ 60}; 61 62struct _vmdisc_s 63{ Vmemory_f memoryf; /* memory manipulator */ 64 Vmexcept_f exceptf; /* exception handler */ 65 size_t round; /* rounding requirement */ 66 size_t size; /* actual size of discipline */ 67}; 68 69struct _vmethod_s 70{ Void_t* (*allocf)_ARG_((Vmalloc_t*,size_t,int)); 71 Void_t* (*resizef)_ARG_((Vmalloc_t*,Void_t*,size_t,int,int)); 72 int (*freef)_ARG_((Vmalloc_t*,Void_t*,int)); 73 long (*addrf)_ARG_((Vmalloc_t*,Void_t*,int)); 74 long (*sizef)_ARG_((Vmalloc_t*,Void_t*,int)); 75 int (*compactf)_ARG_((Vmalloc_t*,int)); 76 Void_t* (*alignf)_ARG_((Vmalloc_t*,size_t,size_t,int)); 77 unsigned short meth; 78}; 79 80struct _vmalloc_s 81{ Vmethod_t meth; /* method for allocation */ 82 char* file; /* file name */ 83 int line; /* line number */ 84 char* func; /* calling function */ 85 Vmdisc_t* disc; /* discipline to get space */ 86 Vmdata_t* data; /* the real region data */ 87 Vmalloc_t* next; /* linked list of regions */ 88}; 89 90#define VM_TRUST 0000000 /* obsolete */ 91#define VM_TRACE 0000001 /* generate traces of calls */ 92#define VM_DBCHECK 0000002 /* check for boundary overwrite */ 93#define VM_DBABORT 0000004 /* abort on any warning */ 94#define VM_SHARE 0000010 /* sharable across processes */ 95#define VM_MEMORYF 0000020 /* vm was allocated by memoryf */ 96#define VM_FLAGS 0000017 /* user-settable flags */ 97 98#define VM_MTBEST 0000100 /* Vmbest method */ 99#define VM_MTPOOL 0000200 /* Vmpool method */ 100#define VM_MTLAST 0000400 /* Vmlast method */ 101#define VM_MTDEBUG 0001000 /* Vmdebug method */ 102#define VM_MTPROFILE 0002000 /* Vmdebug method */ 103#define VM_METHODS 0003700 /* available allocation methods */ 104 105#define VM_RSCOPY 0000001 /* copy old contents */ 106#define VM_RSMOVE 0000002 /* old contents is moveable */ 107#define VM_RSZERO 0000004 /* clear new space */ 108 109/* exception types */ 110#define VM_OPEN 1 /* region being opened */ 111#define VM_ENDOPEN 2 /* end of region opening */ 112#define VM_CLOSE 3 /* announce being closed */ 113#define VM_ENDCLOSE 4 /* end of region closing */ 114#define VM_DISC 5 /* discipline being changed */ 115#define VM_NOMEM 6 /* can't obtain memory */ 116#define VM_BADADDR (-1) /* currently a no-op */ 117 118/* for application-specific data in shared/persistent regions */ 119#define VM_MMGET 0 /* get data value (void*) */ 120#define VM_MMSET 1 /* set data value (void*) */ 121#define VM_MMADD 2 /* add data value (long) */ 122 123_BEGIN_EXTERNS_ /* public data */ 124#if _BLD_vmalloc && defined(__EXPORT__) 125#define extern extern __EXPORT__ 126#endif 127#if !_BLD_vmalloc && defined(__IMPORT__) 128#define extern extern __IMPORT__ 129#endif 130 131extern Vmethod_t* Vmbest; /* best allocation */ 132extern Vmethod_t* Vmlast; /* last-block allocation */ 133extern Vmethod_t* Vmpool; /* pool allocation */ 134extern Vmethod_t* Vmdebug; /* allocation with debugging */ 135extern Vmethod_t* Vmprofile; /* profiling memory usage */ 136 137extern Vmdisc_t* Vmdcsystem; /* get memory from the OS */ 138extern Vmdisc_t* Vmdcheap; /* get memory from Vmheap */ 139extern Vmdisc_t* Vmdcsbrk; /* like Vmdcsystem - legacy use */ 140 141extern Vmalloc_t _Vmheap; /* heap region - use with care! */ 142extern Vmalloc_t* Vmheap; /* = &_Vmheap - safe to use */ 143extern Vmalloc_t* Vmregion; /* malloc region */ 144 145#undef extern 146_END_EXTERNS_ 147 148_BEGIN_EXTERNS_ /* public functions */ 149#if _BLD_vmalloc && defined(__EXPORT__) 150#define extern __EXPORT__ 151#endif 152 153extern Vmalloc_t* vmopen _ARG_(( Vmdisc_t*, Vmethod_t*, int )); 154extern int vmclose _ARG_(( Vmalloc_t* )); 155extern int vmclear _ARG_(( Vmalloc_t* )); 156extern int vmcompact _ARG_(( Vmalloc_t* )); 157 158extern Vmdisc_t* vmdisc _ARG_(( Vmalloc_t*, Vmdisc_t* )); 159 160extern Vmalloc_t* vmmopen _ARG_(( char*, int, ssize_t )); 161extern Void_t* vmmvalue _ARG_(( Vmalloc_t*, int, Void_t*, int )); 162extern void vmmrelease _ARG_(( Vmalloc_t*, int )); 163extern Void_t* vmmaddress _ARG_(( size_t )); 164 165extern Void_t* vmalloc _ARG_(( Vmalloc_t*, size_t )); 166extern Void_t* vmalign _ARG_(( Vmalloc_t*, size_t, size_t )); 167extern Void_t* vmresize _ARG_(( Vmalloc_t*, Void_t*, size_t, int )); 168extern Void_t* vmgetmem _ARG_(( Vmalloc_t*, Void_t*, size_t )); 169extern int vmfree _ARG_(( Vmalloc_t*, Void_t* )); 170 171extern long vmaddr _ARG_(( Vmalloc_t*, Void_t* )); 172extern long vmsize _ARG_(( Vmalloc_t*, Void_t* )); 173 174extern Vmalloc_t* vmregion _ARG_(( Void_t* )); 175extern Void_t* vmsegment _ARG_(( Vmalloc_t*, Void_t* )); 176extern int vmset _ARG_(( Vmalloc_t*, int, int )); 177 178extern Void_t* vmdbwatch _ARG_(( Void_t* )); 179extern int vmdbcheck _ARG_(( Vmalloc_t* )); 180extern int vmdebug _ARG_(( int )); 181 182extern int vmprofile _ARG_(( Vmalloc_t*, int )); 183 184extern int vmtrace _ARG_(( int )); 185extern int vmtrbusy _ARG_((Vmalloc_t*)); 186 187extern int vmstat _ARG_((Vmalloc_t*, Vmstat_t*)); 188 189extern int vmwalk _ARG_((Vmalloc_t*, 190 int(*)(Vmalloc_t*,Void_t*,size_t,Vmdisc_t*,Void_t*), Void_t*)); 191extern char* vmstrdup _ARG_((Vmalloc_t*, const char*)); 192 193#if !defined(_BLD_vmalloc) && !defined(_AST_STD_H) && \ 194 !defined(__stdlib_h) && !defined(__STDLIB_H) && \ 195 !defined(_STDLIB_INCLUDED) && !defined(_INC_STDLIB) 196extern Void_t* malloc _ARG_(( size_t )); 197extern Void_t* realloc _ARG_(( Void_t*, size_t )); 198extern void free _ARG_(( Void_t* )); 199extern void cfree _ARG_(( Void_t* )); 200extern Void_t* calloc _ARG_(( size_t, size_t )); 201extern Void_t* memalign _ARG_(( size_t, size_t )); 202extern Void_t* valloc _ARG_(( size_t )); 203#endif 204extern int setregmax _ARG_(( int )); 205 206#undef extern 207_END_EXTERNS_ 208 209/* to coerce any value to a Vmalloc_t*, make ANSI happy */ 210#define _VM_(vm) ((Vmalloc_t*)(vm)) 211 212/* enable recording of where a call originates from */ 213#ifdef VMFL 214 215#if defined(__FILE__) 216#define _VMFILE_(vm) (_VM_(vm)->file = (char*)__FILE__) 217#else 218#define _VMFILE_(vm) (_VM_(vm)->file = (char*)0) 219#endif 220 221#if defined(__LINE__) 222#define _VMLINE_(vm) (_VM_(vm)->line = __LINE__) 223#else 224#define _VMLINE_(vm) (_VM_(vm)->line = 0) 225#endif 226 227#if defined(__FUNCTION__) 228#define _VMFUNC_(vm) (_VM_(vm)->func = (char*)__FUNCTION__) 229#else 230#define _VMFUNC_(vm) (_VM_(vm)->func = (char*)0) 231#endif 232 233#define _VMFL_(vm) (_VMFILE_(vm), _VMLINE_(vm), _VMFUNC_(vm)) 234 235#define vmalloc(vm,sz) (_VMFL_(vm), \ 236 (*(_VM_(vm)->meth.allocf))((vm),(sz),0) ) 237#define vmresize(vm,d,sz,type) (_VMFL_(vm), \ 238 (*(_VM_(vm)->meth.resizef))\ 239 ((vm),(Void_t*)(d),(sz),(type),0) ) 240#define vmfree(vm,d) (_VMFL_(vm), \ 241 (*(_VM_(vm)->meth.freef))((vm),(Void_t*)(d),0) ) 242#define vmalign(vm,sz,align) (_VMFL_(vm), \ 243 (*(_VM_(vm)->meth.alignf))((vm),(sz),(align),0) ) 244 245#undef malloc 246#undef realloc 247#undef calloc 248#undef free 249#undef memalign 250#undef valloc 251 252#if _map_malloc 253 254#define malloc(s) (_VMFL_(Vmregion), _ast_malloc((size_t)(s)) ) 255#define realloc(d,s) (_VMFL_(Vmregion), _ast_realloc((Void_t*)(d),(size_t)(s)) ) 256#define calloc(n,s) (_VMFL_(Vmregion), _ast_calloc((size_t)n, (size_t)(s)) ) 257#define free(d) (_VMFL_(Vmregion), _ast_free((Void_t*)(d)) ) 258#define memalign(a,s) (_VMFL_(Vmregion), _ast_memalign((size_t)(a),(size_t)(s)) ) 259#define valloc(s) (_VMFL_(Vmregion), _ast_valloc((size_t)(s) ) 260 261#else 262 263#if !_std_malloc 264 265#if __STD_C || defined(__STDPP__) || defined(__GNUC__) 266 267#define malloc(s) (_VMFL_(Vmregion), malloc((size_t)(s)) ) 268#define realloc(d,s) (_VMFL_(Vmregion), realloc((Void_t*)(d),(size_t)(s)) ) 269#define calloc(n,s) (_VMFL_(Vmregion), calloc((size_t)n, (size_t)(s)) ) 270#define free(d) (_VMFL_(Vmregion), free((Void_t*)(d)) ) 271#define memalign(a,s) (_VMFL_(Vmregion), memalign((size_t)(a),(size_t)(s)) ) 272#define valloc(s) (_VMFL_(Vmregion), valloc((size_t)(s) ) 273#ifndef strdup 274#define strdup(s) ( _VMFL_(Vmregion), (strdup)((char*)(s)) ) 275#endif 276 277#else 278 279#define _VMNM_(a,b,c,d,e,f) a/**/b/**/c/**/d/**/e/**/f 280#define malloc(s) (_VMFL_(Vmregion), _VMNM_(mallo,/,*,*,/,c)\ 281 ((size_t)(s)) ) 282#define realloc(d,s) (_VMFL_(Vmregion), _VMNM_(reallo,/,*,*,/,c)\ 283 ((Void_t*)(d),(size_t)(s)) ) 284#define calloc(n,s) (_VMFL_(Vmregion), _VMNM_(callo,/,*,*,/,c)\ 285 ((size_t)n, (size_t)(s)) ) 286#define free(d) (_VMFL_(Vmregion), _VMNM_(fre,/,*,*,/,e)((Void_t*)(d)) ) 287#define memalign(a,s) (_VMFL_(Vmregion), _VMNM_(memalig,/,*,*,/,n)\ 288 ((size_t)(a),(size_t)(s)) ) 289#define valloc(s) (_VMFL_(Vmregion), _VMNM_(vallo,/,*,*,/,c)\ 290 ((size_t)(s) ) 291#ifndef strdup 292#define strdup(s) ( _VMFL_(Vmregion), _VMNM_(strdu,/,*,*,/,p)\ 293 ((char*)(s)) ) 294#endif 295 296#endif /*__STD_C || defined(__STDPP__) || defined(__GNUC__)*/ 297 298#define cfree(d) free(d) 299 300#endif /*!_std_malloc*/ 301 302#endif /*_map_malloc*/ 303 304#endif /*VMFL*/ 305 306/* non-debugging/profiling allocation calls */ 307#ifndef vmalloc 308#define vmalloc(vm,sz) (*(_VM_(vm)->meth.allocf))((vm),(sz),0) 309#endif 310 311#ifndef vmresize 312#define vmresize(vm,d,sz,type) (*(_VM_(vm)->meth.resizef))\ 313 ((vm),(Void_t*)(d),(sz),(type),0) 314#endif 315 316#ifndef vmfree 317#define vmfree(vm,d) (*(_VM_(vm)->meth.freef))((vm),(Void_t*)(d),0) 318#endif 319 320#ifndef vmalign 321#define vmalign(vm,sz,align) (*(_VM_(vm)->meth.alignf))((vm),(sz),(align),0) 322#endif 323 324#define vmaddr(vm,addr) (*(_VM_(vm)->meth.addrf))((vm),(Void_t*)(addr),0) 325#define vmsize(vm,addr) (*(_VM_(vm)->meth.sizef))((vm),(Void_t*)(addr),0) 326#define vmcompact(vm) (*(_VM_(vm)->meth.compactf))((vm),0) 327#define vmoldof(v,p,t,n,x) (t*)vmresize((v), (p), sizeof(t)*(n)+(x), \ 328 (VM_RSMOVE) ) 329#define vmnewof(v,p,t,n,x) (t*)vmresize((v), (p), sizeof(t)*(n)+(x), \ 330 (VM_RSMOVE|VM_RSCOPY|VM_RSZERO) ) 331 332#define vmdata(vm) ((Void_t*)(_VM_(vm)->data) ) 333#define vmlocked(vm) (*((unsigned int*)(_VM_(vm)->data)) ) 334 335#endif /* _VMALLOC_H */ 336