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dpavlin |
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/* |
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The Malete project - the Z39.2/Z39.50 database framework of OpenIsis. |
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Version 0.9.x (patchlevel see file Version) |
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Copyright (C) 2001-2003 by Erik Grziwotz, erik@openisis.org |
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public |
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License as published by the Free Software Foundation; either |
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version 2.1 of the License, or (at your option) any later version. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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See the GNU Lesser General Public License for more details. |
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You should have received a copy of the GNU Lesser General Public |
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License along with this library; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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see README for more information |
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EOH */ |
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/* |
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$Id: sys.c,v 1.29 2004/11/12 09:38:02 kripke Exp $ |
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I/O support for the openisis library. |
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*/ |
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#include <stdlib.h> |
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#include <stdarg.h> |
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#include <string.h> |
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#include <errno.h> |
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#include <limits.h> /* PATH_MAX */ |
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#include <sys/types.h> |
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#ifdef WIN32 |
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#define WIN32_LEAN_AND_MEAN |
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#define NONAMELESSUNION |
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# include <windows.h> |
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# include <sys/timeb.h> |
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#else /* have operating system */ |
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# define __USE_UNIX98 |
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/* |
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# define _POSIX_MAPPED_FILES |
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# define _POSIX_SYNCHRONIZED_IO |
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*/ |
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# include <fcntl.h> /* or try unixio */ |
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# ifndef O_SYNC |
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# if defined( __FreeBSD__ ) |
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# define O_SYNC O_FSYNC |
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# else |
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# define O_SYNC 0 |
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# endif |
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# endif |
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# include <sys/stat.h> |
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# include <sys/file.h> /* flock */ |
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#if defined(__linux__) && !defined(__USE_GNU) |
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# define __USE_GNU /* weird trigger to declare MREMAP_MAYMOVE */ |
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#endif |
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# include <sys/mman.h> |
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# include <sys/socket.h> |
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# include <unistd.h> |
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#endif /* WIN32 */ |
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#include <sys/time.h> /* gettimeofday */ |
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#include <time.h> /* localtime */ |
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#include "../core/core.h" |
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/* ************************************************************ |
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private data |
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*/ |
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/* ************************************************************ |
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private functions |
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*/ |
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static void *memordie ( int size ) |
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{ |
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void *p = malloc( size ); |
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if ( p ) |
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return p; |
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exit( 71/*EX_OSERR*/ ); /* exit handlers MUST NOT alloc memory */ |
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return 0; |
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} |
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/* ************************************************************ |
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private functions |
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*/ |
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/* ************************************************************ |
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public data |
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*/ |
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Env env; |
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/* ************************************************************ |
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public functions |
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*/ |
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void *mAlloc ( int size ) |
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{ |
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void *p = memordie( size ); |
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memset(p, 0, size); |
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return p; |
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} /* mAlloc */ |
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void mFree ( void *mem ) |
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{ |
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if ( mem ) |
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free( mem ); |
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} /* mFree */ |
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void *mDup ( const void *str, int sz ) |
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{ |
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void *m = memordie( 0<=sz ? sz : (sz = strlen( str ) + 1) ); |
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memcpy( m, str, sz ); |
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return m; |
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} /* mDup */ |
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char *mDupz ( const char *str, int sz ) |
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{ |
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char *m = memordie( sz+1 ); |
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memcpy( m, str, sz ); |
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m[sz] = 0; |
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return m; |
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} /* mDupz */ |
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LBlk *mBlkAlloc ( int size ) |
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{ |
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LBlk *b = memordie( (((char*)(&((LBlk*)0)->byt))-(char*)0) + size ); |
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b->nxt = 0; |
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b->siz = size; |
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memset(b->byt, 0, size); |
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return b; |
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} /* mBlkAlloc */ |
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List *mListAlloc ( const char *name ) |
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{ |
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return lInit(memordie(sizeof(List)), name); |
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} /* mListAlloc */ |
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int tUpd ( lolo *tm ) |
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{ |
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lolo o; |
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#ifdef WIN32 |
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struct _timeb tb; |
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_ftime( &tb ); |
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if ( !tm ) |
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return tb.time; |
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o = *tm; |
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*tm = tb.time*LOLO(1000) + tb.millitm; |
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#else |
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struct timeval tv; |
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gettimeofday( &tv, 0 ); |
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if ( !tm ) |
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return tv.tv_sec; |
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o = *tm; |
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*tm = tv.tv_sec*LOLO(1000) + tv.tv_usec/1000; |
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#endif |
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return (int)(*tm - o); |
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} /* tUpd */ |
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static int tLoc ( struct tm *t, lolo *tm ) |
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{ |
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lolo x; |
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time_t tt; |
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if ( !tm || !*tm ) |
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tUpd( tm ? tm : (tm = &x) ); |
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tt = (time_t)(*tm / 1000); |
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#ifdef WIN32 /* did I mention it's not threadsafe ? */ |
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*t = *localtime( &tt ); |
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#else |
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localtime_r( &tt, t ); |
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#endif |
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return (int)(*tm % 1000); |
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} /* tLoc */ |
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/* logically belongs to uti.c; here so tGtf may consider inlining */ |
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void u2a0 ( char *p, unsigned u, unsigned n ) |
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{ |
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for ( ; n--; u/=10 ) |
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p[n] = '0' + (u % 10); |
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} /* u2a0 */ |
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int tGtf ( char *buf, lolo *tm ) |
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{ |
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struct tm t; |
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int millis = tLoc( &t, tm ); |
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u2a0(buf, 1900+t.tm_year, 1900+t.tm_year); |
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u2a0(buf+4, 1+t.tm_mon, 2); |
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u2a0(buf+6, t.tm_mday, 2); |
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u2a0(buf+8, t.tm_hour, 2); |
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u2a0(buf+10, t.tm_min, 2); |
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u2a0(buf+12, t.tm_sec, 2); |
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buf[14] = 0; |
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return millis; |
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} /* tGtf */ |
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char *tGtfm ( char *buf, lolo *tm ) |
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{ |
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u2a0(buf+14, tGtf(buf, tm), 3); |
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buf[18] = 0; |
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return buf; |
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} /* tGtfm */ |
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#if 0 /* unused */ |
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void tSleep ( lolo tm ) |
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{ |
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#ifdef WIN32 |
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Sleep( tm ); |
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#else |
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struct timespec ts; |
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ts.tv_sec = tm / 1000; |
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ts.tv_nsec = 1000000 * (int)(tm % 1000); |
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nanosleep( &ts, 0 ); |
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#endif |
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} /* tSleep */ |
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#endif |
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#ifndef WIN32 |
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static const char *lmode (int f) |
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{ |
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switch ( (FIL_BLOCK|FIL_TLOCK|FIL_WR) & f ) { |
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case FIL_BLOCK|FIL_WR: return "wait ex"; |
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case FIL_BLOCK: return "wait sh"; |
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case FIL_TLOCK|FIL_WR: return "test ex"; |
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case FIL_TLOCK: return "test sh"; |
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} |
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return "unlock"; |
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} |
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#endif |
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int fOpen ( file *fil, const char *name, int flags ) |
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{ |
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int faillvl = FIL_TRY&flags ? LOG_VERBOSE : ERR_NO; |
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#ifndef WIN32 |
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int fd = -1; |
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int f = !(FIL_WR&flags) ? O_RDONLY : ((FIL_RD&flags) ? O_RDWR : O_WRONLY); |
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*fil = FIL_NONE; |
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if (!name) { /* tempfile */ |
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const char tpl[] = "/tmp/maleteXXXXXX"; |
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char nam[sizeof tpl]; |
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memcpy(nam, tpl, sizeof tpl); |
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fd = mkstemp(nam); |
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if (0 > fd) |
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return eRr(ERR_NO, "could not create tmpfile"); |
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eRr(LOG_VERBOSE, "tempfile '%s'", nam); |
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unlink(nam); |
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*fil = fd; |
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return 0; |
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} |
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if ( FIL_CREAT & flags && FIL_WR & flags ) f |= O_CREAT; |
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if ( FIL_SYNC & flags ) f |= O_SYNC; |
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if ( FIL_TRUNC & flags ) f |= O_TRUNC; |
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fd = open( name, f, 00664 ); /* let umask finetune */ |
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if ( 0 > fd ) |
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return eRr( faillvl, "could not open '%s' %x", name, flags ); |
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if ( FIL_FLOCK & flags ) { |
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struct flock fl; |
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memset(&fl, 0, sizeof(fl)); |
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fl.l_type = FIL_WR&flags ? F_WRLCK : F_RDLCK; |
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fl.l_whence = SEEK_SET; |
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fl.l_start = 0; |
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fl.l_len = 0; |
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eRr(LOG_VERBOSE, "%s perm lock on '%s'", lmode(flags), name); |
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if ( fcntl(fd, FIL_BLOCK&flags ? F_SETLKW : F_SETLK, &fl) ) { |
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close(fd); |
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return eRr(ERR_NO, "err %s perm lock on '%s'", lmode(flags), name); |
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} |
| 292 |
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} |
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*fil = fd; |
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#else |
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HANDLE h; |
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int acc = 0; |
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int shr = FILE_SHARE_READ | (FIL_FLOCK&flags ? 0 : FILE_SHARE_WRITE); |
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int cre = (FIL_CREAT & flags && FIL_WR & flags) |
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? (FIL_TRUNC & flags) ? CREATE_ALWAYS : OPEN_ALWAYS |
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: (FIL_TRUNC & flags) ? TRUNCATE_EXISTING : OPEN_EXISTING; |
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int f = (FIL_WR&flags) ? FILE_ATTRIBUTE_ARCHIVE : FILE_ATTRIBUTE_NORMAL; |
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char nam[128]; |
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*fil = FIL_NONE; |
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if (!name) { /* tempfile */ |
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GetTempPath(sizeof nam, nam); |
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GetTempFileName(nam, "mtp", 0, nam); |
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name = nam; |
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eRr(LOG_VERBOSE, "tempfile '%s'", nam); |
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acc = GENERIC_READ|GENERIC_WRITE; |
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shr = 0; |
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cre = TRUNCATE_EXISTING; |
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f = FILE_ATTRIBUTE_TEMPORARY|FILE_FLAG_DELETE_ON_CLOSE; |
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} else { |
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if ( FIL_RD & flags ) acc |= GENERIC_READ; /* FILE_READ_DATA; */ |
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if ( FIL_WR & flags ) acc |= GENERIC_WRITE; |
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if ( FIL_SYNC & flags ) f |= FILE_FLAG_WRITE_THROUGH; |
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} |
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f |= FILE_FLAG_RANDOM_ACCESS; |
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h = CreateFile( name, acc, shr, 0, cre, f, 0 ); |
| 322 |
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if ( INVALID_HANDLE_VALUE == h ) |
| 323 |
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return eRr( faillvl, "could not open '%s' %x", name, flags ); |
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*fil = h; |
| 325 |
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#endif |
| 326 |
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return 0; |
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} /* fOpen */ |
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int fClose ( file *f ) |
| 331 |
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{ |
| 332 |
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if ( FIL_NONE != *f ) { |
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#ifndef WIN32 |
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for ( fsync( *f ); close( *f ); errno = 0 ) |
| 335 |
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if ( EINTR != errno ) { |
| 336 |
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eRr( LOG_SYSERR, "could not close file %d", *f ); |
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return errno ? -errno : -1; |
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} |
| 339 |
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#else |
| 340 |
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CloseHandle( (HANDLE)*f ); |
| 341 |
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#endif |
| 342 |
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*f = FIL_NONE; |
| 343 |
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} |
| 344 |
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return 0; |
| 345 |
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} /* fClose */ |
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int fSize ( file f ) |
| 349 |
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{ |
| 350 |
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#ifndef WIN32 |
| 351 |
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{ |
| 352 |
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struct stat s; |
| 353 |
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return fstat( f, &s ) ? 0 : s.st_size; |
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} |
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#else |
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return GetFileSize( (HANDLE)f, 0 ); |
| 357 |
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#endif |
| 358 |
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} /* fSize */ |
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unsigned fTime ( file f ) |
| 362 |
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{ |
| 363 |
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#ifndef WIN32 |
| 364 |
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struct stat s; |
| 365 |
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return fstat( f, &s ) ? 0 : (unsigned)s.st_mtime; |
| 366 |
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#else |
| 367 |
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FILETIME foo; /* time since 160101011200 UTC in hundred nanoseconds !!! */ |
| 368 |
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lulu bar; |
| 369 |
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if ( ! GetFileTime( (HANDLE)f, 0, 0, &foo ) ) |
| 370 |
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return 0; |
| 371 |
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bar = ((lulu)foo.dwHighDateTime<<32 | (lulu)foo.dwLowDateTime) / LULU(10000000); |
| 372 |
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return (unsigned)(bar - LULU(11644473600)); |
| 373 |
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#endif |
| 374 |
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} /* fTime */ |
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| 377 |
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int fRead ( file *f, void *buf, unsigned count ) |
| 378 |
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{ |
| 379 |
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#ifndef WIN32 |
| 380 |
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int got = read( *f, buf, count ); |
| 381 |
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return 0 <= got ? got |
| 382 |
|
|
: eRr( ERR_NO, "could not read %d bytes from %d", count, *f ); |
| 383 |
|
|
#else |
| 384 |
|
|
DWORD got = 0; |
| 385 |
|
|
int ok = ReadFile( (HANDLE)*f, buf, count, &got, 0 ); |
| 386 |
|
|
return ok ? got : eRr( ERR_NO, "could not read %d bytes", count ); |
| 387 |
|
|
#endif |
| 388 |
|
|
} /* fRead */ |
| 389 |
|
|
|
| 390 |
|
|
|
| 391 |
|
|
int fWrite ( file *f, const void *buf, unsigned count ) |
| 392 |
|
|
{ |
| 393 |
|
|
{ |
| 394 |
|
|
#ifndef WIN32 |
| 395 |
|
|
int got = write( *f, buf, count ); |
| 396 |
|
|
return 0 <= got ? got |
| 397 |
|
|
: eRr( ERR_NO, "could not write %d bytes to %d", count, *f ); |
| 398 |
|
|
#else |
| 399 |
|
|
DWORD got = 0; |
| 400 |
|
|
int ok = WriteFile( (HANDLE)*f, buf, count, &got, 0 ); |
| 401 |
|
|
return ok ? got |
| 402 |
|
|
: eRr( ERR_NO, "could not write %d bytes", count ); |
| 403 |
|
|
#endif |
| 404 |
|
|
} |
| 405 |
|
|
} /* fWrite */ |
| 406 |
|
|
|
| 407 |
|
|
|
| 408 |
|
|
|
| 409 |
|
|
int fSeek ( file *f, unsigned offset ) |
| 410 |
|
|
{ |
| 411 |
|
|
{ |
| 412 |
|
|
#ifndef WIN32 |
| 413 |
|
|
int got = (int)lseek( *f, offset, SEEK_SET ); |
| 414 |
|
|
return (int)offset == got ? 0 |
| 415 |
|
|
: eRr( ERR_NO, "could not seek to %d", offset ); |
| 416 |
|
|
#else |
| 417 |
|
|
return 0xffffffff /* "INVALID_SET_FILE_POINTER" */ |
| 418 |
|
|
== SetFilePointer( (HANDLE)*f, offset, 0, FILE_BEGIN ) |
| 419 |
|
|
? -1 : 0; |
| 420 |
|
|
#endif |
| 421 |
|
|
} |
| 422 |
|
|
} /* fSeek */ |
| 423 |
|
|
|
| 424 |
|
|
|
| 425 |
|
|
int fPread ( file *f, void *buf, unsigned count, unsigned offset ) |
| 426 |
|
|
{ |
| 427 |
|
|
{ |
| 428 |
|
|
#ifndef WIN32 |
| 429 |
|
|
int got = pread( *f, buf, count, offset ); |
| 430 |
|
|
return 0 <= got ? got |
| 431 |
|
|
: eRr( ERR_NO, "could not read %d bytes from %d at %d", |
| 432 |
|
|
count, *f, offset ); |
| 433 |
|
|
#else |
| 434 |
|
|
return 0xffffffff /* "INVALID_SET_FILE_POINTER" */ |
| 435 |
|
|
== SetFilePointer( (HANDLE)*f, offset, 0, FILE_BEGIN ) |
| 436 |
|
|
? -1 : fRead( f, buf, count ); |
| 437 |
|
|
#endif |
| 438 |
|
|
} |
| 439 |
|
|
} /* fPread */ |
| 440 |
|
|
|
| 441 |
|
|
|
| 442 |
|
|
int fPwrite ( file *f, const void *buf, unsigned count, unsigned offset ) |
| 443 |
|
|
{ |
| 444 |
|
|
{ |
| 445 |
|
|
#ifndef WIN32 |
| 446 |
|
|
int got = pwrite( *f, buf, count, offset ); |
| 447 |
|
|
return 0 <= got ? got |
| 448 |
|
|
: eRr( ERR_NO, "could not write %d bytes to %d at %d", |
| 449 |
|
|
count, *f, offset ); |
| 450 |
|
|
#else |
| 451 |
|
|
return 0xffffffff /* "INVALID_SET_FILE_POINTER" */ |
| 452 |
|
|
== SetFilePointer( (HANDLE)*f, offset, 0, FILE_BEGIN ) |
| 453 |
|
|
? -1 : fWrite( f, buf, count ); |
| 454 |
|
|
#endif |
| 455 |
|
|
} |
| 456 |
|
|
} /* fPwrite */ |
| 457 |
|
|
|
| 458 |
|
|
|
| 459 |
|
|
int fTrunc ( file *f, unsigned length ) |
| 460 |
|
|
{ |
| 461 |
|
|
#ifndef WIN32 |
| 462 |
|
|
ftruncate( *f, length ); |
| 463 |
|
|
if ( length && (int)length != fSize(*f) ) { |
| 464 |
|
|
/* Solaris and FreeBSD guarantee that ftruncate can extend files, |
| 465 |
|
|
but Linux does not. |
| 466 |
|
|
*/ |
| 467 |
|
|
static char nosh = 0; |
| 468 |
|
|
fPwrite(f, &nosh, 1, length-1); |
| 469 |
|
|
} |
| 470 |
|
|
#else |
| 471 |
|
|
/* SetFileValidData( (HANDLE)*f, length ); XP only */ |
| 472 |
|
|
return 0xffffffff /* "INVALID_SET_FILE_POINTER" */ |
| 473 |
|
|
== SetFilePointer( (HANDLE)*f, length, 0, FILE_BEGIN ) |
| 474 |
|
|
? -1 : SetEndOfFile( (HANDLE)*f ) |
| 475 |
|
|
? 0 : eRr( ERR_NO, "could not truncate %d", length ); |
| 476 |
|
|
#endif |
| 477 |
|
|
return 0; |
| 478 |
|
|
} /* fTrunc */ |
| 479 |
|
|
|
| 480 |
|
|
|
| 481 |
|
|
#ifdef BUILD_SHMODE |
| 482 |
|
|
int fLock ( file f, unsigned n, int flg ) |
| 483 |
|
|
{ |
| 484 |
|
|
struct flock fl; |
| 485 |
|
|
|
| 486 |
|
|
memset( &fl, 0, sizeof(fl) ); |
| 487 |
|
|
fl.l_type = FIL_WR&flg ? F_WRLCK : flg ? F_RDLCK : F_UNLCK; |
| 488 |
|
|
fl.l_whence = SEEK_SET; |
| 489 |
|
|
fl.l_start = n; |
| 490 |
|
|
fl.l_len = 1; |
| 491 |
|
|
eRr( LOG_VERBOSE, "%s tmp lock %d", lmode(flg), n ); |
| 492 |
|
|
return fcntl(f, FIL_BLOCK&flg ? F_SETLKW : F_SETLK, &fl) |
| 493 |
|
|
? eRr(ERR_NO, "err %s tmp lock %d", lmode(flg), n) : 0; |
| 494 |
|
|
} /* fLock */ |
| 495 |
|
|
#endif |
| 496 |
|
|
|
| 497 |
|
|
|
| 498 |
|
|
int fMOpen ( FMap *fm, const char *name, int flags ) |
| 499 |
|
|
{ |
| 500 |
|
|
int ret; |
| 501 |
|
|
fm->map = 0; |
| 502 |
|
|
fm->npg = 0; |
| 503 |
|
|
if ( (ret = fOpen(&fm->fil, name, flags)) ) |
| 504 |
|
|
fm->flg = 0; |
| 505 |
|
|
else { |
| 506 |
|
|
#ifdef WIN32 /* save mapping name */ |
| 507 |
|
|
static const char pfx[] = "Malete"; |
| 508 |
|
|
int l = strlen(name); |
| 509 |
|
|
char *c; |
| 510 |
|
|
fm->nam = mAlloc(sizeof(pfx)+l); |
| 511 |
|
|
memcpy(fm->nam, pfx, sizeof(pfx)-1); |
| 512 |
|
|
memcpy(c = fm->nam+sizeof(pfx)-1, name, l+1); |
| 513 |
|
|
for (; *c; c++) if ( '\\' == *c ) *c = '/'; /* must not contain \ */ |
| 514 |
|
|
#endif |
| 515 |
|
|
fm->flg = flags; |
| 516 |
|
|
} |
| 517 |
|
|
return ret; |
| 518 |
|
|
} /* fMOpen */ |
| 519 |
|
|
|
| 520 |
|
|
|
| 521 |
|
|
int fMClose ( FMap *fm ) |
| 522 |
|
|
{ |
| 523 |
|
|
if ( fm->map ) |
| 524 |
|
|
fMap(fm, 0); |
| 525 |
|
|
#ifdef WIN32 /* save mapping name */ |
| 526 |
|
|
if ( fm->nam ) { |
| 527 |
|
|
mFree(fm->nam); |
| 528 |
|
|
fm->nam = 0; |
| 529 |
|
|
} |
| 530 |
|
|
#endif |
| 531 |
|
|
return fClose(&fm->fil); |
| 532 |
|
|
} /* fMClose */ |
| 533 |
|
|
|
| 534 |
|
|
|
| 535 |
|
|
int fMap ( FMap *fm, unsigned npg ) |
| 536 |
|
|
{ |
| 537 |
|
|
if ( npg > fm->lim && fm->npg == (npg = fm->lim) ) |
| 538 |
|
|
return npg; |
| 539 |
|
|
#ifndef WIN32 |
| 540 |
|
|
if ((FIL_WR & fm->flg) && npg && (((int)npg<<env.psh) > fSize(fm->fil))) |
| 541 |
|
|
fTrunc(&fm->fil, npg<<env.psh); |
| 542 |
|
|
if ( fm->map ) { /* unmap or remap */ |
| 543 |
|
|
#ifdef __linux__ |
| 544 |
|
|
if ( npg ) { |
| 545 |
|
|
fm->map = mremap(fm->map, fm->npg<<env.psh, npg<<env.psh, MREMAP_MAYMOVE); |
| 546 |
|
|
fm->npg = 0; |
| 547 |
|
|
goto done; |
| 548 |
|
|
} |
| 549 |
|
|
#endif |
| 550 |
|
|
munmap(fm->map, fm->npg<<env.psh); |
| 551 |
|
|
} |
| 552 |
|
|
fm->map = 0; |
| 553 |
|
|
fm->npg = 0; |
| 554 |
|
|
if (!npg) |
| 555 |
|
|
return 0; |
| 556 |
|
|
/* get new map */ |
| 557 |
|
|
fm->map = mmap( 0, npg<<env.psh, |
| 558 |
|
|
PROT_READ | ((FIL_WR&fm->flg) ? PROT_WRITE : 0), MAP_SHARED, fm->fil, 0 ); |
| 559 |
|
|
#ifdef __linux__ |
| 560 |
|
|
done: |
| 561 |
|
|
#endif |
| 562 |
|
|
LOG_DBG(LOG_DEBUG, "mapped %d pages at %8x", npg, fm->map); |
| 563 |
|
|
if ( MAP_FAILED != fm->map ) |
| 564 |
|
|
return (int)(fm->npg = npg); |
| 565 |
|
|
fm->map = 0; |
| 566 |
|
|
return eRr(ERR_NO, "mmap failed"); |
| 567 |
|
|
#else |
| 568 |
|
|
/* awfully complicated here |
| 569 |
|
|
-- need CreateFileMapping, MapViewOfFile |
| 570 |
|
|
stupid piece of shrott |
| 571 |
|
|
true mapping supported in NT family only, 9x copies to swap |
| 572 |
|
|
*/ |
| 573 |
|
|
if ( fm->map ) { |
| 574 |
|
|
UnmapViewOfFile(fm->map); |
| 575 |
|
|
CloseHandle(fm->hdl); |
| 576 |
|
|
} |
| 577 |
|
|
fm->map = 0; |
| 578 |
|
|
fm->npg = 0; |
| 579 |
|
|
fm->hdl = 0; |
| 580 |
|
|
if (!npg) |
| 581 |
|
|
return 0; |
| 582 |
|
|
/* |
| 583 |
|
|
note that shared writing of a mapping does not work, |
| 584 |
|
|
because to be consistent, it needs to be the same mapping object, |
| 585 |
|
|
which we can not grow. |
| 586 |
|
|
However, windoze doesn't support shared writing anyway. |
| 587 |
|
|
*/ |
| 588 |
|
|
{ |
| 589 |
|
|
int size = fSize(fm->fil); |
| 590 |
|
|
if (FIL_WR&fm->flg || size > npg<<env.psh) |
| 591 |
|
|
size = npg<<env.psh; |
| 592 |
|
|
else |
| 593 |
|
|
npg = (size + env.psz-1)>>env.psh; |
| 594 |
|
|
if ( (fm->hdl = CreateFileMapping(fm->fil,0, |
| 595 |
|
|
(FIL_WR&fm->flg)?PAGE_READWRITE:PAGE_READONLY,0,size,fm->nam)) ) { |
| 596 |
|
|
if ( (fm->map = MapViewOfFile(fm->hdl, |
| 597 |
|
|
(FIL_WR&fm->flg)?FILE_MAP_WRITE:FILE_MAP_READ,0,0,size)) |
| 598 |
|
|
) |
| 599 |
|
|
return fm->npg = npg; |
| 600 |
|
|
CloseHandle(fm->hdl); |
| 601 |
|
|
fm->hdl = 0; |
| 602 |
|
|
return eRr(ERR_NO, "MapViewOfFile %d failed", npg); |
| 603 |
|
|
} |
| 604 |
|
|
} |
| 605 |
|
|
return eRr(ERR_NO, "CreateFileMapping failed"); |
| 606 |
|
|
#endif |
| 607 |
|
|
} /* fMap */ |
| 608 |
|
|
|
| 609 |
|
|
|
| 610 |
|
|
int fMSync ( FMap *fm, unsigned page ) |
| 611 |
|
|
{ |
| 612 |
|
|
char * buf = fm->map + (page<<env.psh); |
| 613 |
|
|
LOG_DBG(LOG_DEBUG, "msync %d", page); |
| 614 |
|
|
#ifndef WIN32 |
| 615 |
|
|
return msync( buf, env.psz, ( |
| 616 |
|
|
#ifdef BUILD_SHMODE |
| 617 |
|
|
ENV_SHARED == env.wri ? MS_INVALIDATE : |
| 618 |
|
|
#endif |
| 619 |
|
|
0) | (FIL_SYNC&fm->flg ? MS_SYNC : MS_ASYNC) ) |
| 620 |
|
|
? eRr( ERR_NO, "msync" ) : 0; |
| 621 |
|
|
#else |
| 622 |
|
|
return FlushViewOfFile(buf, env.psz) ? 0 : eRr(ERR_NO, "msync"); |
| 623 |
|
|
#endif |
| 624 |
|
|
} /* fMSync */ |
| 625 |
|
|
|
| 626 |
|
|
|
| 627 |
|
|
int fSlurp ( char **buf, int sz, const char *name, int opt ) |
| 628 |
|
|
{ |
| 629 |
|
|
int size; |
| 630 |
|
|
int ret; |
| 631 |
|
|
char *p = *buf; |
| 632 |
|
|
file f; |
| 633 |
|
|
|
| 634 |
|
|
if ( (ret = fOpen( &f, name, FIL_RD|(opt ? FIL_TRY : 0) )) ) |
| 635 |
|
|
return ret; |
| 636 |
|
|
size = fSize( f ); |
| 637 |
|
|
if ( 0 >= size ) |
| 638 |
|
|
return size; |
| 639 |
|
|
if ( size > sz ) { |
| 640 |
|
|
eRr(ERR_INVAL, "file '%.*s' too big: %d > %d", 30, name, size, sz); |
| 641 |
|
|
goto done; |
| 642 |
|
|
} |
| 643 |
|
|
if ( ! p && !(p = mAlloc(size)) ) { |
| 644 |
|
|
ret = ERR_NOMEM; |
| 645 |
|
|
goto done; |
| 646 |
|
|
} |
| 647 |
|
|
ret = fRead( &f, p, size ); |
| 648 |
|
|
if ( size == ret ) |
| 649 |
|
|
*buf = p; |
| 650 |
|
|
else { |
| 651 |
|
|
if ( ret >= 0 ) |
| 652 |
|
|
ret = eRr( ERR_IO, "OOPS! got %d of %d bytes from '%.*s'", |
| 653 |
|
|
ret, size, 30, name ); |
| 654 |
|
|
if ( ! *buf ) |
| 655 |
|
|
free( p ); |
| 656 |
|
|
} |
| 657 |
|
|
done: |
| 658 |
|
|
fClose( &f ); |
| 659 |
|
|
return ret; |
| 660 |
|
|
} /* fSlurp */ |
| 661 |
|
|
|
| 662 |
|
|
|
| 663 |
|
|
int fGets ( FBuf *b ) |
| 664 |
|
|
{ |
| 665 |
|
|
char *c; |
| 666 |
|
|
int n; |
| 667 |
|
|
if ( b->l ) { |
| 668 |
|
|
b->p += b->l; |
| 669 |
|
|
b->o += b->l; |
| 670 |
|
|
b->l = 0; |
| 671 |
|
|
} |
| 672 |
|
|
if ( b->m ) { |
| 673 |
|
|
b->p++; |
| 674 |
|
|
b->o++; |
| 675 |
|
|
b->m--; |
| 676 |
|
|
b->n++; |
| 677 |
|
|
} |
| 678 |
|
|
for (;;) { /* now have b->m bytes at b->p+b->l */ |
| 679 |
|
|
if ( b->m ) { /* add all or part of this b->l */ |
| 680 |
|
|
if ( (c = memchr(b->p+b->l, LF, b->m)) ) { |
| 681 |
|
|
b->m -= c - b->p - b->l; |
| 682 |
|
|
b->l = c - b->p; |
| 683 |
|
|
return !0; |
| 684 |
|
|
} |
| 685 |
|
|
b->l += b->m; |
| 686 |
|
|
b->m = 0; |
| 687 |
|
|
if ( b->l == b->s ) /* buffer exhausted */ |
| 688 |
|
|
return !0; |
| 689 |
|
|
if ( b->p != b->b ) |
| 690 |
|
|
memmove(b->b, b->p, b->l); |
| 691 |
|
|
} |
| 692 |
|
|
b->p = b->b; |
| 693 |
|
|
if ( 0 >= (n = fRead(&b->f, b->p+b->l, b->s-b->l)) ) /* eof */ |
| 694 |
|
|
return b->l; /* but had line */ |
| 695 |
|
|
b->m = n; |
| 696 |
|
|
} |
| 697 |
|
|
} /* fGets */ |
| 698 |
|
|
|
| 699 |
|
|
|
| 700 |
|
|
int fGetr ( List *l, FBuf *fb ) |
| 701 |
|
|
{ |
| 702 |
|
|
if ( !fGets(fb) ) |
| 703 |
|
|
return 0; |
| 704 |
|
|
while ( fb->l ) { |
| 705 |
|
|
int tag; |
| 706 |
|
|
int n = a2il(fb->p, fb->l, &tag); |
| 707 |
|
|
if ( !l->fld->tag ) { /* init rec */ |
| 708 |
|
|
if ( n ) /* this is a data field, add blank header */ |
| 709 |
|
|
LPREF(l, -1, 0); |
| 710 |
|
|
else /* use this one as header */ |
| 711 |
|
|
tag = -1; |
| 712 |
|
|
} |
| 713 |
|
|
if ( n < (int)fb->l && TAB == fb->p[n] ) |
| 714 |
|
|
n++; |
| 715 |
|
|
LADD(l, tag, fb->p+n, fb->l-n); |
| 716 |
|
|
if ( !fGets(fb) ) |
| 717 |
|
|
break; |
| 718 |
|
|
} |
| 719 |
|
|
return !0; |
| 720 |
|
|
} /* fGetr */ |
| 721 |
|
|
|
| 722 |
|
|
|
| 723 |
|
|
|
| 724 |
|
|
static void fSinkf (Sink *lo, int eor, int full) |
| 725 |
|
|
{ |
| 726 |
|
|
Fld *f = lo->lst.fld, *e = f + RLEN(f); |
| 727 |
|
|
file to = (file)lo->dst; |
| 728 |
|
|
|
| 729 |
|
|
if ( FIL_NONE == to ) goto reset; |
| 730 |
|
|
for ( f++; f < e; f++ ) { |
| 731 |
|
|
char buf[8192]; |
| 732 |
|
|
int l; |
| 733 |
|
|
if ( full ) { |
| 734 |
|
|
l = i2a(buf, f->tag); |
| 735 |
|
|
buf[l++] = '\t'; |
| 736 |
|
|
} else { |
| 737 |
|
|
if ( !f->len ) |
| 738 |
|
|
continue; |
| 739 |
|
|
l = 0; |
| 740 |
|
|
} |
| 741 |
|
|
if ( f->len < sizeof(buf)-l ) { |
| 742 |
|
|
memcpy(buf+l, f->val, f->len); |
| 743 |
|
|
buf[l += f->len] = '\n'; |
| 744 |
|
|
fWrite(&to, buf, l+1); |
| 745 |
|
|
} else { |
| 746 |
|
|
if ( l ) |
| 747 |
|
|
fWrite(&to, buf, l); |
| 748 |
|
|
if ( f->len ) |
| 749 |
|
|
fWrite(&to, f->val, f->len); |
| 750 |
|
|
buf[0] = '\n'; |
| 751 |
|
|
fWrite(&to, buf, 1); |
| 752 |
|
|
} |
| 753 |
|
|
} |
| 754 |
|
|
if ( eor ) |
| 755 |
|
|
fWrite(&to, "\n", 1); |
| 756 |
|
|
reset: |
| 757 |
|
|
lReset(&lo->lst); |
| 758 |
|
|
} /* fSinkf */ |
| 759 |
|
|
|
| 760 |
|
|
void fSinkl (Sink *lo, int eor) |
| 761 |
|
|
{ |
| 762 |
|
|
fSinkf(lo, eor, 0); |
| 763 |
|
|
} /* fSinkl */ |
| 764 |
|
|
|
| 765 |
|
|
void fSinkr (Sink *lo, int eor) |
| 766 |
|
|
{ |
| 767 |
|
|
Fld *f = lo->lst.fld; |
| 768 |
|
|
file to = (file)lo->dst; |
| 769 |
|
|
char buf[8192]; |
| 770 |
|
|
int l; |
| 771 |
|
|
|
| 772 |
|
|
if ( FIL_NONE == to ) goto reset; |
| 773 |
|
|
if ( f->tag ) { /* not empty */ |
| 774 |
|
|
if ( !lo->off && f->len ) { /* skip header if off or empty */ |
| 775 |
|
|
if ( 10>b36val[(unsigned)*f->val] ) {/* starts with digit */ |
| 776 |
|
|
buf[0] = 'W'; |
| 777 |
|
|
buf[1] = TAB; |
| 778 |
|
|
l = 2; |
| 779 |
|
|
} else |
| 780 |
|
|
l = 0; |
| 781 |
|
|
if ( f->len < sizeof(buf)-l ) { |
| 782 |
|
|
memcpy(buf+l, f->val, f->len); |
| 783 |
|
|
buf[l += f->len] = '\n'; |
| 784 |
|
|
fWrite(&to, buf, l+1); |
| 785 |
|
|
} else { |
| 786 |
|
|
if ( l ) |
| 787 |
|
|
fWrite(&to, buf, l); |
| 788 |
|
|
if ( f->len ) |
| 789 |
|
|
fWrite(&to, f->val, f->len); |
| 790 |
|
|
fWrite(&to, "\n", 1); |
| 791 |
|
|
} |
| 792 |
|
|
} |
| 793 |
|
|
} |
| 794 |
|
|
fSinkf(lo, eor, 1); |
| 795 |
|
|
if ( ! eor ) { |
| 796 |
|
|
lo->off += f->tag; /* no of fields passed by */ |
| 797 |
|
|
return; |
| 798 |
|
|
} |
| 799 |
|
|
reset: |
| 800 |
|
|
lo->off = 0; |
| 801 |
|
|
lClr(&lo->lst); |
| 802 |
|
|
} /* fSinkr */ |
| 803 |
|
|
|
| 804 |
|
|
|
| 805 |
|
|
int eOut ( int tag, const char *fmt, ... ) |
| 806 |
|
|
{ |
| 807 |
|
|
if ( env.out ) { |
| 808 |
|
|
va_list ap; |
| 809 |
|
|
va_start( ap, fmt ); |
| 810 |
|
|
lOut(&env.out->lst, tag, 0, fmt, ap); |
| 811 |
|
|
va_end( ap ); |
| 812 |
|
|
SINK(env.out); |
| 813 |
|
|
} |
| 814 |
|
|
return tag; |
| 815 |
|
|
} /* eOut */ |
| 816 |
|
|
|
| 817 |
|
|
|
| 818 |
|
|
int eRr ( int tag, const char *fmt, ... ) |
| 819 |
|
|
{ |
| 820 |
|
|
va_list ap; |
| 821 |
|
|
|
| 822 |
|
|
if ( ERR_NO == tag ) |
| 823 |
|
|
#ifndef WIN32 |
| 824 |
|
|
switch ( errno ) { |
| 825 |
|
|
case EINTR: case EAGAIN: |
| 826 |
|
|
tag = ERR_AGAIN; break; |
| 827 |
|
|
case EFAULT: case ENAMETOOLONG: case ELOOP: |
| 828 |
|
|
tag = ERR_FAULT; break; /* structurally bad address */ |
| 829 |
|
|
case EBADF: case ENOENT: case ENOTDIR: |
| 830 |
|
|
tag = ERR_BADF; break; /* file "does not exist" */ |
| 831 |
|
|
case EIO: case EEXIST: case EISDIR: case EACCES: case ENXIO: |
| 832 |
|
|
case ENODEV: case EROFS: case ETXTBSY: case ENOSPC: |
| 833 |
|
|
case EPIPE: case ESPIPE: |
| 834 |
|
|
tag = ERR_IO; break; /* file "is not accessible" */ |
| 835 |
|
|
case ENOMEM: case EMFILE: case ENFILE: |
| 836 |
|
|
tag = ERR_NOMEM; break; |
| 837 |
|
|
case EBUSY: |
| 838 |
|
|
tag = ERR_BUSY; break; |
| 839 |
|
|
default: |
| 840 |
|
|
tag = ERR_INVAL; |
| 841 |
|
|
} |
| 842 |
|
|
#else |
| 843 |
|
|
tag = ERR_INVAL; |
| 844 |
|
|
#endif |
| 845 |
|
|
if ( env.log > tag ) |
| 846 |
|
|
return tag; |
| 847 |
|
|
|
| 848 |
|
|
if ( !env.err ) |
| 849 |
|
|
return tag; |
| 850 |
|
|
va_start( ap, fmt ); |
| 851 |
|
|
lOut(&env.err->lst, -tag, 0, fmt, ap); |
| 852 |
|
|
va_end( ap ); |
| 853 |
|
|
|
| 854 |
|
|
/* logging afterburner */ |
| 855 |
|
|
if ( ERR_NOMEM >= tag && tag >= ERR_AGAIN ) { |
| 856 |
|
|
char *syserr = |
| 857 |
|
|
#ifndef WIN32 |
| 858 |
|
|
errno ? strerror(errno) : 0; |
| 859 |
|
|
#else |
| 860 |
|
|
0; |
| 861 |
|
|
char buf[256] = ""; |
| 862 |
|
|
if ( |
| 863 |
|
|
FormatMessage( |
| 864 |
|
|
FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS, |
| 865 |
|
|
0, GetLastError(), 0, buf, sizeof(buf)-1, 0 ) |
| 866 |
|
|
) |
| 867 |
|
|
syserr = buf; |
| 868 |
|
|
buf[ sizeof(buf)-1 ] = 0; |
| 869 |
|
|
#endif |
| 870 |
|
|
if ( syserr ) { |
| 871 |
|
|
LAPP(&env.err->lst, ": ", 2); |
| 872 |
|
|
LAPPS(&env.err->lst, syserr); |
| 873 |
|
|
} |
| 874 |
|
|
} |
| 875 |
|
|
SINK(env.err); /* just trigger the sink, buffering should be handled there */ |
| 876 |
|
|
return tag; |
| 877 |
|
|
} /* eRr */ |
| 878 |
|
|
|
| 879 |
|
|
|
| 880 |
|
|
|
| 881 |
|
|
/* |
| 882 |
|
|
NOTE: no shared lib support |
| 883 |
|
|
*/ |
| 884 |
|
|
void cFini () |
| 885 |
|
|
{ |
| 886 |
|
|
dCloseAll(); |
| 887 |
|
|
/* close env's buffers */ |
| 888 |
|
|
if ( env.out ) env.out->snk(env.out, 1); |
| 889 |
|
|
if ( env.err ) env.err->snk(env.err, 1); |
| 890 |
|
|
} /* cFini */ |
| 891 |
|
|
|
| 892 |
|
|
|
| 893 |
|
|
void cInit ( List *opts, Sink *out, Sink *err ) |
| 894 |
|
|
{ |
| 895 |
|
|
Sink **oe; |
| 896 |
|
|
Fld opt = { 0, 0, 0 }; |
| 897 |
|
|
int i; |
| 898 |
|
|
|
| 899 |
|
|
if ( env.out ) |
| 900 |
|
|
return; |
| 901 |
|
|
memset(&env, 0, sizeof(env)); |
| 902 |
|
|
env.opt = opts; |
| 903 |
|
|
#ifndef WIN32 |
| 904 |
|
|
env.in = 0; |
| 905 |
|
|
#else |
| 906 |
|
|
if ( INVALID_HANDLE_VALUE == (env.in = GetStdHandle(STD_INPUT_HANDLE)) ) |
| 907 |
|
|
env.in = FIL_NONE; |
| 908 |
|
|
#endif |
| 909 |
|
|
env.out = out; |
| 910 |
|
|
env.err = err; |
| 911 |
|
|
oe = (Sink**)&env.out; |
| 912 |
|
|
for ( i=0; i<2; i++ ) { |
| 913 |
|
|
oe = i ? &env.err : &env.out; |
| 914 |
|
|
if ( *oe ) |
| 915 |
|
|
continue; |
| 916 |
|
|
*oe = (Sink*)mAlloc(sizeof(Sink)); |
| 917 |
|
|
#ifndef WIN32 |
| 918 |
|
|
(*oe)->dst = (void*)(i + 1); |
| 919 |
|
|
#else |
| 920 |
|
|
if ( INVALID_HANDLE_VALUE == |
| 921 |
|
|
((*oe)->dst = GetStdHandle(i?STD_ERROR_HANDLE:STD_OUTPUT_HANDLE)) |
| 922 |
|
|
) |
| 923 |
|
|
fOpen((file*)&(*oe)->dst, i ? "err.txt" : "out.txt", FIL_WR|FIL_CREAT); |
| 924 |
|
|
#endif |
| 925 |
|
|
if ( i ) { |
| 926 |
|
|
lInit(&env.err->lst, "err"); |
| 927 |
|
|
env.err->snk = fSinkl; |
| 928 |
|
|
} else { |
| 929 |
|
|
lInit(&env.out->lst, 0); |
| 930 |
|
|
env.out->snk = fSinkr; |
| 931 |
|
|
} |
| 932 |
|
|
} |
| 933 |
|
|
|
| 934 |
|
|
/* check pagesize */ |
| 935 |
|
|
#ifndef WIN32 |
| 936 |
|
|
env.psz = sysconf(_SC_PAGESIZE); /* getpagesize(); */ |
| 937 |
|
|
#else |
| 938 |
|
|
{ |
| 939 |
|
|
SYSTEM_INFO si; |
| 940 |
|
|
GetSystemInfo(&si); |
| 941 |
|
|
env.psz = si.dwPageSize; /* usually also 4k */ |
| 942 |
|
|
} |
| 943 |
|
|
#endif |
| 944 |
|
|
{ |
| 945 |
|
|
int t = env.psz; |
| 946 |
|
|
env.psh = 0; |
| 947 |
|
|
while (t >>= 1) env.psh++; |
| 948 |
|
|
if ( env.psz != (unsigned)1<<env.psh || env.psh > CPU_PAGE_SHIFT ) { |
| 949 |
|
|
eRr(ERR_TRASH, "weirdness! pagesize %d shift %d max %d", |
| 950 |
|
|
env.psz, env.psh, CPU_PAGE_SHIFT); |
| 951 |
|
|
exit(1); |
| 952 |
|
|
} |
| 953 |
|
|
if ( env.psh < 12 ) { /* but using multiples is ok */ |
| 954 |
|
|
eRr(LOG_WARN, "page_shift is %d !!!", env.psh); |
| 955 |
|
|
env.psz = 1<<(env.psh = 12); |
| 956 |
|
|
} |
| 957 |
|
|
} |
| 958 |
|
|
/* defaults */ |
| 959 |
|
|
env.log = LOG_WARN; |
| 960 |
|
|
env.wri = ENV_EXCL; |
| 961 |
|
|
env.qml = env.rml = 1<<(30-env.psh); /* map 1 GB at most */ |
| 962 |
|
|
|
| 963 |
|
|
if ( opts ) for ( opt.val = 0; vGet(&opt, opts->fld, "vw"); ) |
| 964 |
|
|
switch (opt.tag) { |
| 965 |
|
|
case 'v': |
| 966 |
|
|
/* |
| 967 |
|
|
logging: |
| 968 |
|
|
first char selects level, a 'b' as second sets buffering |
| 969 |
|
|
*/ |
| 970 |
|
|
if ( opt.len ) { |
| 971 |
|
|
switch ( *opt.val ) { |
| 972 |
|
|
case '0': case 'o': env.log = 0; break; |
| 973 |
|
|
case '1': case 'f': env.log = LOG_FATAL; break; |
| 974 |
|
|
case '2': case 's': env.log = LOG_IOERR /*LOG_SYSERR*/; break; |
| 975 |
|
|
case '3': case 'e': env.log = LOG_ERROR; break; |
| 976 |
|
|
case '4': case 'w': env.log = LOG_WARN; break; |
| 977 |
|
|
case '5': case 'i': env.log = LOG_INFO; break; |
| 978 |
|
|
case '6': case 'v': env.log = LOG_VERBOSE; break; |
| 979 |
|
|
case '7': case 'd': env.log = LOG_DEBUG; break; |
| 980 |
|
|
case '8': case 't': env.log = LOG_TRACE; break; |
| 981 |
|
|
case '9': case 'a': env.log = LOG_ALL; break; |
| 982 |
|
|
} |
| 983 |
|
|
if ( 1 < opt.len && 'b' == opt.val[1] ) |
| 984 |
|
|
env.flg |= ENV_BUFFER; |
| 985 |
|
|
} |
| 986 |
|
|
break; |
| 987 |
|
|
case 'w': /* write/concurrency mode */ |
| 988 |
|
|
if ( opt.len ) |
| 989 |
|
|
switch ( *opt.val ) { |
| 990 |
|
|
case '0': env.wri = ENV_RO; break; |
| 991 |
|
|
case 's': |
| 992 |
|
|
#ifdef BUILD_SHMODE |
| 993 |
|
|
env.wri = ENV_SHARED; |
| 994 |
|
|
env.flg |= ENV_MSYNC; |
| 995 |
|
|
#else |
| 996 |
|
|
eRr(ERR_INVAL, "no shared mode build"); |
| 997 |
|
|
#endif |
| 998 |
|
|
break; |
| 999 |
|
|
} |
| 1000 |
|
|
} /* if (in) for switch */ |
| 1001 |
|
|
|
| 1002 |
|
|
atexit( cFini ); |
| 1003 |
|
|
} /* cInit */ |
Parent Directory
| 
Revision Log