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Diffstat (limited to 'ast/memory.h')
| -rw-r--r-- | ast/memory.h | 355 |
1 files changed, 355 insertions, 0 deletions
diff --git a/ast/memory.h b/ast/memory.h new file mode 100644 index 0000000..81b8f18 --- /dev/null +++ b/ast/memory.h @@ -0,0 +1,355 @@ +#if !defined( MEMORY_INCLUDED ) /* Include this file only once */ +#define MEMORY_INCLUDED +/* +*+ +* Name: +* memory.h + +* Purpose: +* Define the interface to the Memory module. + +* Description: +* This module defines functions which wrap up and extend the +* standard C functions for performing memory allocation. They +* provide better security against memory leaks, etc., and should +* not be inter-mixed with the standard C functions. +* +* Note that this module is not a class implementation, although it +* resembles one. + +* Functions Defined: +* Public: +* None. +* +* Protected: +* astAppendString +* Append a string to another string which grows dynamically. +* astCalloc +* Allocate memory. +* astChrMatch +* Case-insensitive string comparison. +* astChrMatchN +* Case-insensitive string comparison of an most N characters. +* astFree +* Free previously allocated memory. +* astGrow +* Allocate memory for an adjustable array. +* astMalloc +* Allocate memory. +* astRealloc +* Change the size of a dynamically allocated region of memory. +* astSizeOf +* Determine the size of a dynamically allocated region of memory. +* astStore +* Store data in dynamically allocated memory. +* astString +* Create a C string from an array of characters. +* astStringArray +* Create an array of C strings from an array of characters. +* astStringCase +* Convert a string to upper or lower case. +* astChrLen +* Returns length of a string without trailing white space, etc. +* astChrTrunc +* Terminate a string to exclude trailing spaces. +* astSscanf +* Like sscanf, but fixes certain platform-specific bugs in the +* native sscanf implementation. +* astTSizeOf +* Determine the total size of a dynamically allocated region of memory. + +* Copyright: +* Copyright (C) 1997-2006 Council for the Central Laboratory of the +* Research Councils + +* Licence: +* This program is free software: you can redistribute it and/or +* modify it under the terms of the GNU Lesser General Public +* License as published by the Free Software Foundation, either +* version 3 of the License, or (at your option) any later +* version. +* +* This program is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +* GNU Lesser General Public License for more details. +* +* You should have received a copy of the GNU Lesser General +* License along with this program. If not, see +* <http://www.gnu.org/licenses/>. + +* Authors: +* RFWS: R.F. Warren-Smith (Starlink) +* DSB: D.S. Berry (Starlink) + +* History: +* 8-JAN-1996 (RFWS): +* Original version. +* 26-JAN-1996 (RFWS) +* Added function interfaces. +* 20-JUN-1996 (RFWS): +* Added astString. +* 15-JUL-1996 (RFWS): +* Use improved prologue style, etc. and make all functions protected. +* 11-SEP-1996 (RFWS): +* Added astStringArray (original written by DSB). +* 18-MAR-1998 (RFWS): +* Make interface available for writing foreign language and +* graphics interfaces, etc. +* 18-MAR-1998 (RFWS): +* Added explicit arguments to function macros. +* 29-JAN-2002 (DSB): +* Added astChrLen and astSscanf. +* 15-NOV-2002 (DSB): +* Added astChrMatch astChrMatchN. +* 23-FEB-2006 (DSB): +* Added astMemCaching and AST__TUNULL. +* 2-MAR-2006 (DSB): +* Only use astSscanf if the system on which AST was configured +* showed the non-ANSI behaviour reported by Bill Joye. +* 27-JUN-2007 (DSB): +* Added astIsDynamic. +* 25-OCT-2007 (DSB): +* Added astRemoveLeadingBlanks. +* 22-FEB-2008 (DSB): +* Added astChrSub. +* 19-MAY-2010 (DSB): +* Added astStringCase. +* 26-MAR-2015 (DSB): +* Added astChrTrunc. + +*- +*/ + +/* Include files. */ +/* ============== */ +/* Configuration results. */ +/* ---------------------- */ +#if HAVE_CONFIG_H +#include <config.h> +#endif + +/* C header files. */ +/* --------------- */ +#include <stddef.h> +#include "error.h" + +/* Macros. */ +/* ======= */ + +#if defined(astCLASS) || defined(astFORTRAN77) +#define STATUS_PTR status +#else +#define STATUS_PTR astGetStatusPtr +#endif +#define AST__TUNULL -99999 +#define AST__TUNULLC "<NOTUNEPAR>" + +/* Type definitions */ +/* ================ */ + +#if defined(astCLASS) + +/* Header for allocated memory. */ +/* ---------------------------- */ +/* This stores a "magic" value so that dynamically allocated memory + can be recognised, together with the allocated size. It also + ensures correct alignment. */ +typedef struct Memory { + struct Memory *next; + unsigned long magic; + size_t size; + +#ifdef MEM_DEBUG + struct Memory *prev; /* Pointer to the previous linked Memory structure */ + int id; /* A unique identifier for every allocated memory chunk */ + int perm; /* Is this chunk part of an acceptable once-off "memory leak"? */ + int line; /* Line number in "file" (below). */ + char file[50];/* The source file that made the top-level call to AST */ +#endif + +} Memory; + +/* Define the largest size of a cached memory block in bytes. This does + not include the size of the Memory header. This does not need to be + too big because the vast majority of memory blocks allocated by AST are + less than a few hundred bytes. */ +#define MXCSIZE 300 + +#endif + + +#if defined(THREAD_SAFE) && defined(astCLASS) + +/* Define a structure holding all data items that are global within the + memory.c file. */ +typedef struct AstMemoryGlobals { + size_t Sizeof_Memory; + int Cache_Init; + int Use_Cache; + Memory *Cache[ MXCSIZE + 1 ]; + +} AstMemoryGlobals; + +#endif + +/* Function prototypes. */ +/* ==================== */ + +#if defined(THREAD_SAFE) && defined(astCLASS) +void astInitMemoryGlobals_( AstMemoryGlobals * ); +#endif + +#if defined(astCLASS) || 1 /* Nominally protected, but available for */ + /* use in developing (e.g.) foreign */ + /* language or graphics interfaces. */ +int astMemCaching_( int, int * ); +void astChrClean_( char * ); +void astChrRemoveBlanks_( char * ); +void astChrCase_( const char *, char *, int, int, int * ); +char **astChrSplit_( const char *, int *, int * ); +char **astChrSplitRE_( const char *, const char *, int *, const char **, int * ); +char **astChrSplitC_( const char *, char, int *, int * ); +int astChrMatch_( const char *, const char *, int * ); +int astChrMatchN_( const char *, const char *, size_t, int * ); +char **astStringArray_( const char *, int, int, int * ); +char *astStringCase_( const char *, int, int * ); +char *astString_( const char *, int, int * ); +int astSscanf_( const char *str, const char *format, ...); +size_t astSizeOf_( const void *, int * ); +int astIsDynamic_( const void *, int * ); +size_t astTSizeOf_( const void *, int * ); +void *astFree_( void *, int * ); +void *astFreeDouble_( void *, int * ); +void *astGrow_( void *, int, size_t, int * ); +void *astCalloc_( size_t, size_t, int * ); +void *astMalloc_( size_t, int, int * ); +void *astRealloc_( void *, size_t, int * ); +void *astStore_( void *, const void *, size_t, int * ); +size_t astChrLen_( const char *, int * ); +double astChr2Double_( const char *, int * ); +void astRemoveLeadingBlanks_( char *, int * ); +char *astAppendString_( char *, int *, const char *, int * ); +char *astAppendStringf_( char *, int *, const char *, ... )__attribute__((format(printf,3,4))); +char *astChrSub_( const char *, const char *, const char *[], int, int * ); +void astChrTrunc_( char *, int * ); +int astBrackets_( const char *, size_t, size_t, char, char, int, size_t *, size_t *, char **, char **, char **, int * ); +void astFandl_( const char *, size_t, size_t, size_t *, size_t *, int * ); + +#ifdef MEM_PROFILE +void astStartTimer_( const char *, int, const char *, int * ); +void astStopTimer_( int * ); +void astEnableTimers_( int, int * ); +#endif + + +#ifdef MEM_DEBUG +void astActiveMemory_( const char * ); +void astWatchMemory_( int ); +void astCheckMemory_( int * ); +void astFlushMemory_( int, int * ); +int astMemoryTune_( const char *, int, int * ); +void *astMemoryPtr_( int ); +void astMemoryAlarm_( const char * ); +void astMemoryStats_( int , size_t *, size_t *, int * ); +void astMemoryWarning_( size_t, int * ); +void astMemoryUse_( const void *, const char *, int * ); +int astMemoryId_( const void *, int * ); +void astBeginPM_( int * ); +void astEndPM_( int * ); +#endif + +#endif + +/* Function interfaces. */ +/* ==================== */ +/* These wrap up the functions defined by this module. */ + +#define astCalloc(nmemb,size) astERROR_INVOKE(astCalloc_(nmemb,size,STATUS_PTR)) +#define astChrMatch(str1,str2) astERROR_INVOKE(astChrMatch_(str1,str2,STATUS_PTR)) +#define astChrMatchN(str1,str2,n) astERROR_INVOKE(astChrMatchN_(str1,str2,n,STATUS_PTR)) +#define astFree(ptr) astERROR_INVOKE(astFree_(ptr,STATUS_PTR)) +#define astFreeDouble(ptr) astERROR_INVOKE(astFreeDouble_(ptr,STATUS_PTR)) +#define astGrow(ptr,n,size) astERROR_INVOKE(astGrow_(ptr,n,size,STATUS_PTR)) +#define astMalloc(size) astERROR_INVOKE(astMalloc_(size,0,STATUS_PTR)) +#define astMemCaching(flag) astERROR_INVOKE(astMemCaching_(flag,STATUS_PTR)) +#define astRealloc(ptr,size) astERROR_INVOKE(astRealloc_(ptr,size,STATUS_PTR)) +#define astSizeOf(ptr) astERROR_INVOKE(astSizeOf_(ptr,STATUS_PTR)) +#define astIsDynamic(ptr) astERROR_INVOKE(astIsDynamic_(ptr,STATUS_PTR)) +#define astTSizeOf(ptr) astERROR_INVOKE(astTSizeOf_(ptr,STATUS_PTR)) +#define astStore(ptr,data,size) astERROR_INVOKE(astStore_(ptr,data,size,STATUS_PTR)) +#define astAppendString(str1,nc,str2) astERROR_INVOKE(astAppendString_(str1,nc,str2,STATUS_PTR)) +#define astAppendStringf astAppendStringf_ +#define astString(chars,nchars) astERROR_INVOKE(astString_(chars,nchars,STATUS_PTR)) +#define astStringArray(chars,nel,len) astERROR_INVOKE(astStringArray_(chars,nel,len,STATUS_PTR)) +#define astStringCase(string,toupper) astERROR_INVOKE(astStringCase_(string,toupper,STATUS_PTR)) +#define astChrClean(string) astERROR_INVOKE(astChrClean_(string)) +#define astChrRemoveBlanks(string) astERROR_INVOKE(astChrRemoveBlanks_(string)) +#define astChrLen(string) astERROR_INVOKE(astChrLen_(string,STATUS_PTR)) +#define astChrTrunc(string) astERROR_INVOKE(astChrTrunc_(string,STATUS_PTR)) +#define astChr2Double(string) astERROR_INVOKE(astChr2Double_(string,STATUS_PTR)) +#define astRemoveLeadingBlanks(string) astERROR_INVOKE(astRemoveLeadingBlanks_(string,STATUS_PTR)) +#define astChrSub(test,template,subs,nsub) astERROR_INVOKE(astChrSub_(test,template,subs,nsub,STATUS_PTR)) +#define astChrCase(in,out,upper,blen) astERROR_INVOKE(astChrCase_(in,out,upper,blen,STATUS_PTR)) +#define astBrackets(text,start,end,opchar,clchar,strip,openat,closeat,before,in,after) astERROR_INVOKE(astBrackets_(text,start,end,opchar,clchar,strip,openat,closeat,before,in,after,STATUS_PTR)) +#define astFandl(text,start,end,f,l) astERROR_INVOKE(astFandl_(text,start,end,f,l,STATUS_PTR)) + +#if defined(astCLASS) /* Protected */ +#define astMallocInit(size) astMalloc_(size,1,STATUS_PTR) +#endif + +#ifdef HAVE_NONANSI_SSCANF +#define astSscanf astERROR_INVOKE(astSscanf_) +#else +#define astSscanf astERROR_INVOKE(sscanf) +#endif +#define astChrSplit(str,n) astERROR_INVOKE(astChrSplit_(str,n,STATUS_PTR)) +#define astChrSplitC(str,c,n) astERROR_INVOKE(astChrSplitC_(str,c,n,STATUS_PTR)) +#define astChrSplitRE(str,c,n,m) astERROR_INVOKE(astChrSplitRE_(str,c,n,m,STATUS_PTR)) + + +#ifdef MEM_PROFILE +#define astStartTimer(name) astERROR_INVOKE(astStartTimer_(__FILE__,__LINE__,name,STATUS_PTR)) +#define astStopTimer astERROR_INVOKE(astStopTimer_(STATUS_PTR)) +#define astEnableTimers(enable) astERROR_INVOKE(astEnableTimers_(enable,STATUS_PTR)) +#endif + + +/* Functions used for debugging memory leaks, etc */ +#ifdef MEM_DEBUG + +#define astActiveMemory(label) astERROR_INVOKE(astActiveMemory_(label)) +#define astMemoryTune(name,value) astERROR_INVOKE(astMemoryTune_(name,value,STATUS_PTR)) +#define astWatchMemory(id) astERROR_INVOKE(astWatchMemory_(id)) +#define astCheckMemory astERROR_INVOKE(astCheckMemory_(STATUS_PTR)) +#define astFlushMemory(leak) astERROR_INVOKE(astFlushMemory_(leak,STATUS_PTR)) +#define astBeginPM astERROR_INVOKE(astBeginPM_(STATUS_PTR)) +#define astEndPM astERROR_INVOKE(astEndPM_(STATUS_PTR)) +#define astMemoryPtr(id) astERROR_INVOKE(astMemoryPtr_(id)) +#define astMemoryAlarm(text) astERROR_INVOKE(astMemoryAlarm_(text)) +#define astMemoryStats(reset,peak,current) astERROR_INVOKE(astMemoryStats_(reset,peak,current,STATUS_PTR)) +#define astMemoryWarning(threshold) astERROR_INVOKE(astMemoryWarning_(threshold,STATUS_PTR)) +#define astMemoryUse(ptr,text) astERROR_INVOKE(astMemoryUse_(ptr,text,STATUS_PTR)) +#define astMemoryId(ptr) astERROR_INVOKE(astMemoryId_(ptr,STATUS_PTR)) +#else + +#define astActiveMemory(label) +#define astMemoryTune(name,value) +#define astWatchMemory(id) +#define astCheckMemory +#define astFlushMemory(leak) +#define astBeginPM +#define astEndPM +#define astMemoryPtr(id) NULL +#define astMemoryAlarm(text) +#define astMemoryStats(reset,peak,current) +#define astMemoryUse(ptr,text) +#define astMemoryId(ptr) +#define astMemoryWarning(threshold) + +#endif + +#endif + + + |