X-Git-Url: https://git.wh0rd.org/?p=dump.git;a=blobdiff_plain;f=dump%2Ftape.c;h=89f630d278ea3484c4ac8aa8054575a81bcdc7a6;hp=156abffc99ed843bbf03cb77f8341cb8e2951a2e;hb=1ba0c4bb3595ad2d15cd378e989933a883c8f77e;hpb=d435f57f01229cd9fa358abe32c4a93077d9090d diff --git a/dump/tape.c b/dump/tape.c index 156abff..89f630d 100644 --- a/dump/tape.c +++ b/dump/tape.c @@ -37,7 +37,7 @@ #ifndef lint static const char rcsid[] = - "$Id: tape.c,v 1.80 2004/01/27 10:37:29 stelian Exp $"; + "$Id: tape.c,v 1.88 2005/03/02 08:46:55 stelian Exp $"; #endif /* not lint */ #include @@ -60,7 +60,11 @@ int write(), read(); #ifdef __linux__ #include #include -#include /* for definition of BLKFLSBUF */ +#include +#include /* for definition of BLKFLSBUF */ +#ifndef BLKFLSBUF /* last resort... */ +#define BLKFLSBUF _IO(0x12, 97) /* Flush buffer cache. */ +#endif #include #endif #include @@ -116,8 +120,8 @@ int eot_code = 1; long long tapea_bytes = 0; /* bytes_written at start of current volume */ static int magtapeout; /* output is really a tape */ -static ssize_t dump_atomic_read __P((int, void *, size_t)); -static ssize_t dump_atomic_write __P((int, const void *, size_t)); +static ssize_t dump_atomic_read __P((int, char *, size_t)); +static ssize_t dump_atomic_write __P((int, const char *, size_t)); #ifdef WRITEDEBUG static void doslave __P((int, int, int)); #else @@ -142,7 +146,7 @@ static int MkTapeString __P((struct s_spcl *, long long)); * The following structure defines the instruction packets sent to slaves. */ struct req { - daddr_t dblk; + ext2_loff_t dblk; int count; }; int reqsiz; @@ -234,7 +238,7 @@ void writerec(const void *dp, int isspcl) { - slp->req[trecno].dblk = (daddr_t)0; + slp->req[trecno].dblk = (ext2_loff_t)0; slp->req[trecno].count = 1; /* XXX post increment triggers an egcs-1.1.2-12 bug on alpha/sparc */ *(union u_spcl *)(*(nextblock)) = *(union u_spcl *)dp; @@ -272,9 +276,10 @@ writerec(const void *dp, int isspcl) } void -dumpblock(daddr_t blkno, int size) +dumpblock(blk_t blkno, int size) { - int avail, tpblks, dblkno; + int avail, tpblks; + ext2_loff_t dblkno; dblkno = fsbtodb(sblock, blkno); tpblks = size >> tp_bshift; @@ -415,6 +420,10 @@ flushtape(void) int siz = (char *)nextblock - (char *)slp->req; + /* make sure returned has sane values in case we don't read + * them from the slave in this pass */ + returned.unclen = returned.clen = writesize; + slp->req[trecno].count = 0; /* Sentinel */ if (dump_atomic_write( slp->fd, (char *)slp->req, siz) != siz) @@ -470,10 +479,14 @@ flushtape(void) } blks = 0; - if (spcl.c_type != TS_END) { - for (i = 0; i < spcl.c_count; i++) - if (spcl.c_addr[i] != 0) - blks++; + if (spcl.c_type == TS_CLRI || spcl.c_type == TS_BITS) + blks = spcl.c_count; + else { + if (spcl.c_type != TS_END) { + for (i = 0; i < spcl.c_count; i++) + if (spcl.c_addr[i] != 0) + blks++; + } } slp->count = lastspclrec + blks + 1 - spcl.c_tapea; slp->tapea = spcl.c_tapea; @@ -485,7 +498,7 @@ flushtape(void) blockswritten += ntrec; blocksthisvol += ntrec; if (!pipeout && !unlimited) { - if (blocksperfiles[blocksperfiles_current]) { + if (blocksperfiles && blocksperfiles[blocksperfiles_current]) { if ( compressed ? (bytes_written - tapea_bytes + SLAVES * (writesize + sizeof(struct tapebuf))) >= (((long long)blocksperfiles[blocksperfiles_current]) * 1024) : blocksthisvol >= blocksperfiles[blocksperfiles_current] ) { close_rewind(); @@ -573,8 +586,6 @@ close_rewind(void) { int eot_code = 1; (void)trewind(); - if (nexttape || Mflag) - return; if (eot_script) { msg("Launching %s\n", eot_script); eot_code = system_command(eot_script, tape, tapeno); @@ -585,6 +596,8 @@ close_rewind(void) } if (eot_code == 0) return; + if (nexttape || Mflag) + return; if (!nogripe) { msg("Change Volumes: Mount volume #%d\n", tapeno+1); broadcast("CHANGE DUMP VOLUMES!\7\7\n"); @@ -611,6 +624,10 @@ rollforward(void) tslp = &slaves[SLAVES]; ntb = (union u_spcl *)tslp->tblock[1]; + /* make sure returned has sane values in case we don't read + * them from the slave in this pass */ + returned.unclen = returned.clen = writesize; + /* * Each of the N slaves should have requests that need to * be replayed on the next tape. Use the extra slave buffers @@ -872,7 +889,7 @@ restore_check_point: tape[MAXPATHLEN - 1] = '\0'; msg("Dumping volume %d on %s\n", tapeno, tape); } - if (blocksperfiles_current < *blocksperfiles) + if (blocksperfiles && blocksperfiles_current < *blocksperfiles) blocksperfiles_current++; #ifdef RDUMP while ((tapefd = (host ? rmtopen(tape, O_WRONLY|O_CREAT|O_TRUNC) : pipeout ? @@ -1087,9 +1104,6 @@ doslave(int cmd, int compresult; volatile int do_compress = !first; unsigned long worklen; -#ifdef HAVE_BZLIB - unsigned int worklen2; -#endif #ifdef HAVE_LZO lzo_align_t __LZO_MMODEL *LZO_WorkMem; #endif @@ -1226,7 +1240,7 @@ doslave(int cmd, #endif /* HAVE_ZLIB */ #ifdef HAVE_BZLIB if (zipflag == COMPRESS_BZLIB) { - worklen2 = worklen; + unsigned int worklen2 = worklen; compresult = BZ2_bzBuffToBuffCompress( comp_buf->buf, &worklen2, @@ -1244,10 +1258,12 @@ doslave(int cmd, #endif /* HAVE_BZLIB */ #ifdef HAVE_LZO if (zipflag == COMPRESS_LZO) { + lzo_uint worklen2 = worklen; compresult = lzo1x_1_compress((char *)slp->tblock[0],writesize, comp_buf->buf, - (lzo_uintp)&worklen, + &worklen2, LZO_WorkMem); + worklen = worklen2; if (compresult == LZO_E_OK) compresult = 1; else @@ -1382,13 +1398,13 @@ doslave(int cmd, * loop until the count is satisfied (or error). */ static ssize_t -dump_atomic_read(int fd, void *buf, size_t count) +dump_atomic_read(int fd, char *buf, size_t count) { int got, need = count; do { while ((got = read(fd, buf, need)) > 0 && (need -= got) > 0) - (char *)buf += got; + buf += got; } while (got == -1 && errno == EINTR); return (got < 0 ? got : (ssize_t)count - need); } @@ -1399,13 +1415,13 @@ dump_atomic_read(int fd, void *buf, size_t count) * loop until the count is satisfied (or error). */ static ssize_t -dump_atomic_write(int fd, const void *buf, size_t count) +dump_atomic_write(int fd, const char *buf, size_t count) { int got, need = count; do { while ((got = write(fd, buf, need)) > 0 && (need -= got) > 0) - (char *)buf += got; + buf += got; } while (got == -1 && errno == EINTR); return (got < 0 ? got : (ssize_t)count - need); }