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Diffstat (limited to 'extern/qhull/src/mem.h')
| -rw-r--r-- | extern/qhull/src/mem.h | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/extern/qhull/src/mem.h b/extern/qhull/src/mem.h deleted file mode 100644 index e9ebd1bb9bc..00000000000 --- a/extern/qhull/src/mem.h +++ /dev/null @@ -1,174 +0,0 @@ -/*<html><pre> -<a href="qh-mem.htm" - >-------------------------------</a><a name="TOP">-</a> - - mem.h - prototypes for memory management functions - - see qh-mem.htm, mem.c and qset.h - - for error handling, writes message and calls - qh_errexit (qhmem_ERRmem, NULL, NULL) if insufficient memory - and - qh_errexit (qhmem_ERRqhull, NULL, NULL) otherwise - - copyright (c) 1993-2002, The Geometry Center -*/ - -#ifndef qhDEFmem -#define qhDEFmem - -/*-<a href="qh-mem.htm#TOC" - >-------------------------------</a><a name="NOmem">-</a> - - qh_NOmem - turn off quick-fit memory allocation - - notes: - mem.c implements Quickfit memory allocation for about 20% time - savings. If it fails on your machine, try to locate the - problem, and send the answer to qhull@geom.umn.edu. If this can - not be done, define qh_NOmem to use malloc/free instead. - - #define qh_NOmem -*/ - -/*------------------------------------------- - to avoid bus errors, memory allocation must consider alignment requirements. - malloc() automatically takes care of alignment. Since mem.c manages - its own memory, we need to explicitly specify alignment in - qh_meminitbuffers(). - - A safe choice is sizeof(double). sizeof(float) may be used if doubles - do not occur in data structures and pointers are the same size. Be careful - of machines (e.g., DEC Alpha) with large pointers. If gcc is available, - use __alignof__(double) or fmax_(__alignof__(float), __alignof__(void *)). - - see <a href="user.h#MEMalign">qh_MEMalign</a> in user.h for qhull's alignment -*/ - -#define qhmem_ERRmem 4 /* matches qh_ERRmem in qhull.h */ -#define qhmem_ERRqhull 5 /* matches qh_ERRqhull in qhull.h */ - -/*-<a href="qh-mem.htm#TOC" - >--------------------------------</a><a name="ptr_intT">-</a> - - ptr_intT - for casting a void* to an integer-type - - notes: - On 64-bit machines, a pointer may be larger than an 'int'. - qh_meminit() checks that 'long' holds a 'void*' -*/ -typedef unsigned long ptr_intT; - -/*-<a href="qh-mem.htm#TOC" - >--------------------------------</a><a name="qhmemT">-</a> - - qhmemT - global memory structure for mem.c - - notes: - users should ignore qhmem except for writing extensions - qhmem is allocated in mem.c - - qhmem could be swapable like qh and qhstat, but then - multiple qh's and qhmem's would need to keep in synch. - A swapable qhmem would also waste memory buffers. As long - as memory operations are atomic, there is no problem with - multiple qh structures being active at the same time. - If you need separate address spaces, you can swap the - contents of qhmem. -*/ -typedef struct qhmemT qhmemT; -extern qhmemT qhmem; - -struct qhmemT { /* global memory management variables */ - int BUFsize; /* size of memory allocation buffer */ - int BUFinit; /* initial size of memory allocation buffer */ - int TABLEsize; /* actual number of sizes in free list table */ - int NUMsizes; /* maximum number of sizes in free list table */ - int LASTsize; /* last size in free list table */ - int ALIGNmask; /* worst-case alignment, must be 2^n-1 */ - void **freelists; /* free list table, linked by offset 0 */ - int *sizetable; /* size of each freelist */ - int *indextable; /* size->index table */ - void *curbuffer; /* current buffer, linked by offset 0 */ - void *freemem; /* free memory in curbuffer */ - int freesize; /* size of free memory in bytes */ - void *tempstack; /* stack of temporary memory, managed by users */ - FILE *ferr; /* file for reporting errors */ - int IStracing; /* =5 if tracing memory allocations */ - int cntquick; /* count of quick allocations */ - /* remove statistics doesn't effect speed */ - int cntshort; /* count of short allocations */ - int cntlong; /* count of long allocations */ - int curlong; /* current count of inuse, long allocations */ - int freeshort; /* count of short memfrees */ - int freelong; /* count of long memfrees */ - int totshort; /* total size of short allocations */ - int totlong; /* total size of long allocations */ - int maxlong; /* maximum totlong */ - int cntlarger; /* count of setlarger's */ - int totlarger; /* total copied by setlarger */ -}; - - -/*==================== -macros ====================*/ - -/*-<a href="qh-mem.htm#TOC" - >--------------------------------</a><a name="memalloc_">-</a> - - qh_memalloc_(size, object, type) - returns object of size bytes - assumes size<=qhmem.LASTsize and void **freelistp is a temp -*/ - -#ifdef qh_NOmem -#define qh_memalloc_(size, freelistp, object, type) {\ - object= (type*)qh_memalloc (size); } -#else /* !qh_NOmem */ - -#define qh_memalloc_(size, freelistp, object, type) {\ - freelistp= qhmem.freelists + qhmem.indextable[size];\ - if ((object= (type*)*freelistp)) {\ - qhmem.cntquick++; \ - *freelistp= *((void **)*freelistp);\ - }else object= (type*)qh_memalloc (size);} -#endif - -/*-<a href="qh-mem.htm#TOC" - >--------------------------------</a><a name="memfree_">-</a> - - qh_memfree_(object, size) - free up an object - - notes: - object may be NULL - assumes size<=qhmem.LASTsize and void **freelistp is a temp -*/ -#ifdef qh_NOmem -#define qh_memfree_(object, size, freelistp) {\ - qh_memfree (object, size); } -#else /* !qh_NOmem */ - -#define qh_memfree_(object, size, freelistp) {\ - if (object) { \ - qhmem .freeshort++;\ - freelistp= qhmem.freelists + qhmem.indextable[size];\ - *((void **)object)= *freelistp;\ - *freelistp= object;}} -#endif - -/*=============== prototypes in alphabetical order ============*/ - -void *qh_memalloc(int insize); -void qh_memfree (void *object, int size); -void qh_memfreeshort (int *curlong, int *totlong); -void qh_meminit (FILE *ferr); -void qh_meminitbuffers (int tracelevel, int alignment, int numsizes, - int bufsize, int bufinit); -void qh_memsetup (void); -void qh_memsize(int size); -void qh_memstatistics (FILE *fp); - -#endif /* qhDEFmem */ |