84 lines
1.9 KiB
C++
84 lines
1.9 KiB
C++
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#include "statprintf.h"
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#include <string.h>
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#include <stdarg.h>
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CStatPrintf::CStatPrintf(char *name,int lstr,char *mode)
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//name -file name
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//lstr - string length for sprintf,used only for compressed file
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// mode -file mode,"wb0"- not compress out file
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{
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valid=TRUE;
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ff=NULL;
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lenstr=lstr;
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pstr=new char[lstr];
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if (pstr==NULL) throw("Out of memory\n");
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if (strcmp(mode,"wb0")!=0) {// compress file
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char *pname=new char[strlen(name)+4];
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if (pname==NULL) throw("Out of memory\n");
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strcpy(pname,name);
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strcat(pname,".gz");
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ffgz=gzopen(pname,mode);
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if (ffgz==NULL) {
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valid=FALSE;
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sprintf(texterr,"Can't open file %s\n",name);
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return;
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}
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} else {
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ff=fopen(name,"w");
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if (ff==NULL) {
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valid=FALSE;
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sprintf(texterr,"Can't open file %s\n",name);
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return;
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}
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}
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return;
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}
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//-------------------------------------------------
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//return result of constructor execution
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BOOL CStatPrintf::Valid()
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{
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return(valid);
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}
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//-------------------------------------------
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// error message
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void CStatPrintf::TextErr(char *p)
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{
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strcpy(p,texterr);
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}
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//------------------------------------------------
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// change length of string, if it > lenstr
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void CStatPrintf::ChangeLenStr(int lstr)
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{
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if (lstr<=lenstr) return;
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char * ppstr=new char[lstr];
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if (ppstr==NULL) throw("Out of memory\n");
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delete []pstr;
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pstr=ppstr;
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lenstr=lstr;
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return;
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}
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//---------------------------------------------------------
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int CStatPrintf::StatPrintf(const char *format,...)
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{
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va_list arglist;
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va_start(arglist,format);
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if (ff==NULL) { // compress file
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int len=vsprintf(pstr,format,arglist);
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if (len<=0) return 1;
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int ans=gzwrite(ffgz,pstr,unsigned(len));
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if (ans!=len) return 1;
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} else {
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vfprintf(ff,format,arglist);
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}
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va_end(arglist);
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return 0;
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}
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//----------------------------------------------------------
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CStatPrintf::~CStatPrintf()
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{
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if (ff==NULL) {
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delete []pstr;
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gzclose(ffgz);
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} else fclose (ff);
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return;
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}
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