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This commit is contained in:
Pavol Marko 2004-04-22 15:13:55 +00:00
parent de3dbd8a1d
commit 3a3acb517b
4 changed files with 0 additions and 4872 deletions
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4108
amxmodx/amx.c
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618
amxmodx/amxcore.c
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/* Core module for the Small AMX
*
* Copyright (c) ITB CompuPhase, 1997-2004
*
* This software is provided "as-is", without any express or implied warranty.
* In no event will the authors be held liable for any damages arising from
* the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software in
* a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*
* Version: $Id$
*/
#if defined _UNICODE || defined __UNICODE__ || defined UNICODE
# if !defined UNICODE /* for Windows */
# define UNICODE
# endif
# if !defined _UNICODE /* for C library */
# define _UNICODE
# endif
#endif
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <assert.h>
#include "amx.h"
#if defined __WIN32__ || defined _WIN32 || defined WIN32 || defined _Windows
#include <windows.h>
#endif
/* A few compilers do not provide the ANSI C standard "time" functions */
#if !defined SN_TARGET_PS2 && !defined _WIN32_WCE
#include <time.h>
#endif
#if defined _UNICODE
# include <tchar.h>
#elif !defined __T
typedef char TCHAR;
# define __T(string) string
# define _tcschr strchr
# define _tcscpy strcpy
# define _tcsdup strdup
# define _tcslen strlen
# define _stprintf sprintf
#endif
#define CHARBITS (8*sizeof(char))
typedef unsigned char uchar;
#if !defined NOPROPLIST
typedef struct _property_list {
struct _property_list *next;
cell id;
char *name;
cell value;
//??? safe AMX (owner of the property)
} proplist;
static proplist proproot = { NULL };
static proplist *list_additem(proplist *root)
{
proplist *item;
assert(root!=NULL);
if ((item=(proplist *)malloc(sizeof(proplist)))==NULL)
return NULL;
item->name=NULL;
item->id=0;
item->value=0;
item->next=root->next;
root->next=item;
return item;
}
static void list_delete(proplist *pred,proplist *item)
{
assert(pred!=NULL);
assert(item!=NULL);
pred->next=item->next;
assert(item->name!=NULL);
free(item->name);
free(item);
}
static void list_setitem(proplist *item,cell id,char *name,cell value)
{
char *ptr;
assert(item!=NULL);
if ((ptr=(char *)malloc(strlen(name)+1))==NULL)
return;
if (item->name!=NULL)
free(item->name);
strcpy(ptr,name);
item->name=ptr;
item->id=id;
item->value=value;
}
static proplist *list_finditem(proplist *root,cell id,char *name,cell value,
proplist **pred)
{
proplist *item=root->next;
proplist *prev=root;
/* check whether to find by name or by value */
assert(name!=NULL);
if (strlen(name)>0) {
/* find by name */
while (item!=NULL && (item->id!=id || stricmp(item->name,name)!=0)) {
prev=item;
item=item->next;
} /* while */
} else {
/* find by value */
while (item!=NULL && (item->id!=id || item->value!=value)) {
prev=item;
item=item->next;
} /* while */
} /* if */
if (pred!=NULL)
*pred=prev;
return item;
}
#endif
#if defined __BORLANDC__ || defined __WATCOMC__
#pragma argsused
#endif
static cell AMX_NATIVE_CALL numargs(AMX *amx, cell *params)
{
AMX_HEADER *hdr;
uchar *data;
cell bytes;
hdr=(AMX_HEADER *)amx->base;
data=amx->data ? amx->data : amx->base+(int)hdr->dat;
/* the number of bytes is on the stack, at "frm + 2*cell" */
bytes= * (cell *)(data+(int)amx->frm+2*sizeof(cell));
/* the number of arguments is the number of bytes divided
* by the size of a cell */
return bytes/sizeof(cell);
}
static cell AMX_NATIVE_CALL getarg(AMX *amx, cell *params)
{
AMX_HEADER *hdr;
uchar *data;
cell value;
hdr=(AMX_HEADER *)amx->base;
data=amx->data ? amx->data : amx->base+(int)hdr->dat;
/* get the base value */
value= * (cell *)(data+(int)amx->frm+((int)params[1]+3)*sizeof(cell));
/* adjust the address in "value" in case of an array access */
value+=params[2]*sizeof(cell);
/* get the value indirectly */
value= * (cell *)(data+(int)value);
return value;
}
static cell AMX_NATIVE_CALL setarg(AMX *amx, cell *params)
{
AMX_HEADER *hdr;
uchar *data;
cell value;
hdr=(AMX_HEADER *)amx->base;
data=amx->data ? amx->data : amx->base+(int)hdr->dat;
/* get the base value */
value= * (cell *)(data+(int)amx->frm+((int)params[1]+3)*sizeof(cell));
/* adjust the address in "value" in case of an array access */
value+=params[2]*sizeof(cell);
/* verify the address */
if (value<0 || (value>=amx->hea && value<amx->stk))
return 0;
/* set the value indirectly */
* (cell *)(data+(int)value) = params[3];
return 1;
}
#if defined __BORLANDC__ || defined __WATCOMC__
#pragma argsused
#endif
static cell AMX_NATIVE_CALL heapspace(AMX *amx,cell *params)
{
return amx->stk - amx->hea;
}
static cell AMX_NATIVE_CALL funcidx(AMX *amx,cell *params)
{
char name[64];
cell *cstr;
int index,err,len;
amx_GetAddr(amx,params[1],&cstr);
/* verify string length */
amx_StrLen(cstr,&len);
if (len>=64) {
amx_RaiseError(amx,AMX_ERR_NATIVE);
return 0;
} /* if */
amx_GetString(name,cstr,0);
err=amx_FindPublic(amx,name,&index);
if (err!=AMX_ERR_NONE)
index=-1; /* this is not considered a fatal error */
return index;
}
int amx_StrPack(cell *dest,cell *source)
{
int len;
amx_StrLen(source,&len);
if ((ucell)*source>UNPACKEDMAX) {
/* source string is already packed */
while (len >= 0) {
*dest++ = *source++;
len-=sizeof(cell);
} /* while */
} else {
/* pack string, from bottom up */
cell c;
int i;
for (c=0,i=0; i<len; i++) {
assert((*source & ~0xffL)==0);
c=(c<<CHARBITS) | *source++;
if (i%sizeof(cell) == sizeof(cell)-1) {
*dest++=c;
c=0;
} /* if */
} /* for */
if (i%sizeof(cell) != 0) /* store remaining packed characters */
*dest=c << (sizeof(cell)-i%sizeof(cell))*CHARBITS;
else
*dest=0; /* store full cell of zeros */
} /* if */
return AMX_ERR_NONE;
}
int amx_StrUnpack(cell *dest,cell *source)
{
if ((ucell)*source>UNPACKEDMAX) {
/* unpack string, from top down (so string can be unpacked in place) */
cell c;
int i,len;
amx_StrLen(source,&len);
dest[len]=0;
for (i=len-1; i>=0; i--) {
c=source[i/sizeof(cell)] >> (sizeof(cell)-i%sizeof(cell)-1)*CHARBITS;
dest[i]=c & UCHAR_MAX;
} /* for */
} else {
/* source string is already unpacked */
while ((*dest++ = *source++) != 0)
/* nothing */;
} /* if */
return AMX_ERR_NONE;
}
static int verify_addr(AMX *amx,cell addr)
{
int err;
cell *cdest;
err=amx_GetAddr(amx,addr,&cdest);
if (err!=AMX_ERR_NONE)
amx_RaiseError(amx,err);
return err;
}
static cell AMX_NATIVE_CALL core_strlen(AMX *amx,cell *params)
{
cell *cptr;
int len = 0;
if (amx_GetAddr(amx,params[1],&cptr)==AMX_ERR_NONE)
amx_StrLen(cptr,&len);
return len;
}
static cell AMX_NATIVE_CALL strpack(AMX *amx,cell *params)
{
cell *cdest,*csrc;
int len,needed,err;
size_t lastaddr;
/* calculate number of cells needed for (packed) destination */
amx_GetAddr(amx,params[2],&csrc);
amx_StrLen(csrc,&len);
needed=(len+sizeof(cell))/sizeof(cell); /* # of cells needed */
assert(needed>0);
lastaddr=(size_t)(params[1]+sizeof(cell)*needed-1);
if (verify_addr(amx,(cell)lastaddr)!=AMX_ERR_NONE)
return 0;
amx_GetAddr(amx,params[1],&cdest);
err=amx_StrPack(cdest,csrc);
if (err!=AMX_ERR_NONE)
return amx_RaiseError(amx,err);
return len;
}
static cell AMX_NATIVE_CALL strunpack(AMX *amx,cell *params)
{
cell *cdest,*csrc;
int len,err;
size_t lastaddr;
/* calculate number of cells needed for (packed) destination */
amx_GetAddr(amx,params[2],&csrc);
amx_StrLen(csrc,&len);
assert(len>=0);
lastaddr=(size_t)(params[1]+sizeof(cell)*(len+1)-1);
if (verify_addr(amx,(cell)lastaddr)!=AMX_ERR_NONE)
return 0;
amx_GetAddr(amx,params[1],&cdest);
err=amx_StrUnpack(cdest,csrc);
if (err!=AMX_ERR_NONE)
return amx_RaiseError(amx,err);
return len;
}
#if defined __BORLANDC__ || defined __WATCOMC__
#pragma argsused
#endif
static cell AMX_NATIVE_CALL swapchars(AMX *amx,cell *params)
{
union {
cell c;
#if SMALL_CELL_SIZE==16
uchar b[2];
#elif SMALL_CELL_SIZE==32
uchar b[4];
#elif SMALL_CELL_SIZE==64
uchar b[8];
#else
#error Unsupported cell size
#endif
} value;
uchar t;
assert((size_t)params[0]==sizeof(cell));
value.c = params[1];
#if SMALL_CELL_SIZE==16
t = value.b[0];
value.b[0] = value.b[1];
value.b[1] = t;
#elif SMALL_CELL_SIZE==32
t = value.b[0];
value.b[0] = value.b[3];
value.b[3] = t;
t = value.b[1];
value.b[1] = value.b[2];
value.b[2] = t;
#elif SMALL_CELL_SIZE==64
t = value.b[0];
value.b[0] = value.b[7];
value.b[7] = t;
t = value.b[1];
value.b[1] = value.b[6];
value.b[6] = t;
t = value.b[2];
value.b[2] = value.b[5];
value.b[5] = t;
t = value.b[3];
value.b[3] = value.b[4];
value.b[4] = t;
#else
#error Unsupported cell size
#endif
return value.c;
}
#if defined __BORLANDC__ || defined __WATCOMC__
#pragma argsused
#endif
static cell AMX_NATIVE_CALL core_tolower(AMX *amx,cell *params)
{
#if defined __WIN32__ || defined _WIN32 || defined WIN32
return (cell)CharLower((LPTSTR)params[1]);
#elif defined _Windows
return (cell)AnsiLower((LPSTR)params[1]);
#else
return tolower((int)params[1]);
#endif
}
#if defined __BORLANDC__ || defined __WATCOMC__
#pragma argsused
#endif
static cell AMX_NATIVE_CALL core_toupper(AMX *amx,cell *params)
{
#if defined __WIN32__ || defined _WIN32 || defined WIN32
return (cell)CharUpper((LPTSTR)params[1]);
#elif defined _Windows
return (cell)AnsiUpper((LPSTR)params[1]);
#else
return toupper((int)params[1]);
#endif
}
#if defined __BORLANDC__ || defined __WATCOMC__
#pragma argsused
#endif
static cell AMX_NATIVE_CALL core_min(AMX *amx,cell *params)
{
return params[1] <= params[2] ? params[1] : params[2];
}
#if defined __BORLANDC__ || defined __WATCOMC__
#pragma argsused
#endif
static cell AMX_NATIVE_CALL core_max(AMX *amx,cell *params)
{
return params[1] >= params[2] ? params[1] : params[2];
}
static cell AMX_NATIVE_CALL core_clamp(AMX *amx,cell *params)
{
cell value = params[1];
if (params[2] > params[3]) /* minimum value > maximum value ! */
amx_RaiseError(amx,AMX_ERR_NATIVE);
if (value < params[2])
value = params[2];
else if (value > params[3])
value = params[3];
return value;
}
#if !defined NOPROPLIST
static char *MakePackedString(cell *cptr)
{
int len;
char *dest;
amx_StrLen(cptr,&len);
dest=(char *)malloc(len+sizeof(cell));
amx_GetString(dest,cptr,0);
return dest;
}
static cell AMX_NATIVE_CALL getproperty(AMX *amx,cell *params)
{
cell *cstr;
char *name;
proplist *item;
amx_GetAddr(amx,params[2],&cstr);
name=MakePackedString(cstr);
item=list_finditem(&proproot,params[1],name,params[3],NULL);
/* if list_finditem() found the value, store the name */
if (item!=NULL && item->value==params[3] && strlen(name)==0) {
int needed=(strlen(item->name)+sizeof(cell)-1)/sizeof(cell); /* # of cells needed */
if (verify_addr(amx,(cell)(params[4]+needed))!=AMX_ERR_NONE) {
free(name);
return 0;
} /* if */
amx_GetAddr(amx,params[4],&cstr);
amx_SetString(cstr,item->name,1,0);
} /* if */
free(name);
return (item!=NULL) ? item->value : 0;
}
static cell AMX_NATIVE_CALL setproperty(AMX *amx,cell *params)
{
cell prev=0;
cell *cstr;
char *name;
proplist *item;
amx_GetAddr(amx,params[2],&cstr);
name=MakePackedString(cstr);
item=list_finditem(&proproot,params[1],name,params[3],NULL);
if (item==NULL)
item=list_additem(&proproot);
if (item==NULL) {
amx_RaiseError(amx,AMX_ERR_MEMORY);
} else {
prev=item->value;
if (strlen(name)==0) {
free(name);
amx_GetAddr(amx,params[4],&cstr);
name=MakePackedString(cstr);
} /* if */
list_setitem(item,params[1],name,params[3]);
} /* if */
free(name);
return prev;
}
static cell AMX_NATIVE_CALL delproperty(AMX *amx,cell *params)
{
cell prev=0;
cell *cstr;
char *name;
proplist *item,*pred;
amx_GetAddr(amx,params[2],&cstr);
name=MakePackedString(cstr);
item=list_finditem(&proproot,params[1],name,params[3],&pred);
if (item!=NULL) {
prev=item->value;
list_delete(pred,item);
} /* if */
free(name);
return prev;
}
static cell AMX_NATIVE_CALL existproperty(AMX *amx,cell *params)
{
cell *cstr;
char *name;
proplist *item;
amx_GetAddr(amx,params[2],&cstr);
name=MakePackedString(cstr);
item=list_finditem(&proproot,params[1],name,params[3],NULL);
free(name);
return (item!=NULL);
}
#endif
/* This routine comes from the book "Inner Loops" by Rick Booth, Addison-Wesley
* (ISBN 0-201-47960-5). This is a "multiplicative congruential random number
* generator" that has been extended to 31-bits (the standard C version returns
* only 15-bits).
*/
static unsigned long IL_StandardRandom_seed = 0L;
#define IL_RMULT 1103515245L
#if defined __BORLANDC__ || defined __WATCOMC__
#pragma argsused
#endif
static cell AMX_NATIVE_CALL core_random(AMX *amx,cell *params)
{
unsigned long lo, hi, ll, lh, hh, hl;
unsigned long result;
/* one-time initialization (or, mostly one-time) */
#if !defined SN_TARGET_PS2 && !defined _WIN32_WCE
if (IL_StandardRandom_seed == 0L)
IL_StandardRandom_seed=(unsigned long)time(NULL);
#endif
lo = IL_StandardRandom_seed & 0xffff;
hi = IL_StandardRandom_seed >> 16;
IL_StandardRandom_seed = IL_StandardRandom_seed * IL_RMULT + 12345;
ll = lo * (IL_RMULT & 0xffff);
lh = lo * (IL_RMULT >> 16 );
hl = hi * (IL_RMULT & 0xffff);
hh = hi * (IL_RMULT >> 16 );
result = ((ll + 12345) >> 16) + lh + hl + (hh << 16);
result &= ~LONG_MIN; /* remove sign bit */
if (params[1]!=0)
result %= params[1];
return (cell)result;
}
AMX_NATIVE_INFO core_Natives[] = {
{ "numargs", numargs },
{ "getarg", getarg },
{ "setarg", setarg },
{ "heapspace", heapspace },
{ "funcidx", funcidx },
{ "strlen", core_strlen },
{ "strpack", strpack },
{ "strunpack", strunpack },
{ "swapchars", swapchars },
{ "tolower", core_tolower },
{ "toupper", core_toupper },
{ "random", core_random },
{ "min", core_min },
{ "max", core_max },
{ "clamp", core_clamp },
#if !defined NOPROPLIST
{ "getproperty", getproperty },
{ "setproperty", setproperty },
{ "deleteproperty",delproperty },
{ "existproperty", existproperty },
#endif
{ NULL, NULL } /* terminator */
};
int AMXEXPORT amx_CoreInit(AMX *amx)
{
return amx_Register(amx, core_Natives, -1);
}
#if defined __BORLANDC__ || defined __WATCOMC__
#pragma argsused
#endif
int AMXEXPORT amx_CoreCleanup(AMX *amx)
{
#if !defined NOPROPLIST
//??? delete only the properties owned by the AMX
while (proproot.next!=NULL)
list_delete(&proproot,proproot.next);
#endif
return AMX_ERR_NONE;
}

104
amxmodx/amxtime.c
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/* Date/time module for the Small AMX
*
* Copyright (c) ITB CompuPhase, 2001-2002
* This file may be freely used. No warranties of any kind.
*
* Version: $Id$
*/
#include <time.h>
#include <assert.h>
#if defined __WIN32__ || defined _WIN32
#include <windows.h>
#include <mmsystem.h>
#endif
#include "amx.h"
#if defined __BORLANDC__ || defined __WATCOMC__
#pragma argsused
#endif
static cell AMX_NATIVE_CALL _time(AMX *amx, cell *params)
{
time_t sec1970;
struct tm gtm;
cell *cptr;
assert(params[0]==3*sizeof(cell));
time(&sec1970);
/* on DOS/Windows, the timezone is usually not set for the C run-time
* library; in that case gmtime() and localtime() return the same value
*/
gtm=*localtime(&sec1970);
if (amx_GetAddr(amx,params[1],&cptr)==AMX_ERR_NONE)
*cptr=gtm.tm_hour;
if (amx_GetAddr(amx,params[2],&cptr)==AMX_ERR_NONE)
*cptr=gtm.tm_min;
if (amx_GetAddr(amx,params[3],&cptr)==AMX_ERR_NONE)
*cptr=gtm.tm_sec;
/* the time() function returns the number of seconds since January 1 1970
* in Universal Coordinated Time (the successor to Greenwich Mean Time)
*/
return sec1970;
}
#if defined __BORLANDC__ || defined __WATCOMC__
#pragma argsused
#endif
static cell AMX_NATIVE_CALL _date(AMX *amx, cell *params)
{
time_t sec1970;
struct tm gtm;
cell *cptr;
assert(params[0]==3*sizeof(cell));
time(&sec1970);
gtm=*localtime(&sec1970);
if (amx_GetAddr(amx,params[1],&cptr)==AMX_ERR_NONE)
*cptr=gtm.tm_year+1900;
if (amx_GetAddr(amx,params[2],&cptr)==AMX_ERR_NONE)
*cptr=gtm.tm_mon+1;
if (amx_GetAddr(amx,params[3],&cptr)==AMX_ERR_NONE)
*cptr=gtm.tm_mday;
return 0;
}
#if defined __BORLANDC__ || defined __WATCOMC__
#pragma argsused
#endif
static cell AMX_NATIVE_CALL _tickcount(AMX *amx, cell *params)
{
// #if defined __WIN32__ || defined _WIN32
// static int timerset = 0;
// #endif
cell value;
assert(params[0]==sizeof(cell));
//#if defined __WIN32__ || defined _WIN32
// if (!timerset) {
// timeBeginPeriod(1); /* timeGetTime() is more accurate on WindowsNT
// * if timeBeginPeriod(1) is set */
// timerset=1;
// } /* if */
// value=timeGetTime(); /* this value is already in milliseconds */
// #else
value=(cell)clock();
/* convert to milliseconds */
value=(cell)((1000L * (value+CLK_TCK/2)) / CLK_TCK);
//#endif
return value;
}
AMX_NATIVE_INFO time_Natives[] = {
{ "time", _time },
{ "date", _date },
{ "tickcount", _tickcount },
{ NULL, NULL } /* terminator */
};

42
amxmodx/power.c
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/* This file implements two native functions. It is provided as
* an example to show how to add native functions. See the manual
* for more information.
*
* Copyright (c) ITB CompuPhase, 1998, 1999
* This file may be freely used. No warranties of any kind.
*/
#include "amx.h"
static cell power(AMX *amx, cell *params)
{
/* power(value, exponent);
* params[1] = value
* params[2] = exponent
*/
cell result = 1;
while (params[2]-- > 0)
result *= params[1];
return result;
}
static cell sqroot(AMX *amx, cell *params)
{
/* sqroot(value);
* params[1] = value
* This routine uses a simple successice approximation algorithm.
*/
cell div = params[1];
cell result = 1;
while (div > result) { /* end when div == result, or just below */
div = (div + result) / 2; /* take mean value as new divisor */
result = params[1] / div;
} /* while */
return div;
}
AMX_NATIVE_INFO power_Natives[] = {
{ "power", power },
{ "sqroot", sqroot },
{ 0, 0 } /* terminator */
};