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Finished PLZ binkp, bumped version

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This commit is contained in:
Michiel Broek
2004-01-26 12:12:08 +00:00
parent bc7be1fb3b
commit c5a389968b
6 changed files with 52 additions and 22 deletions
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47
mbcico/binkp.c
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@@ -132,6 +132,7 @@ struct binkprec {
int Minor; /* Minor protocol version */
unsigned char *MD_Challenge; /* Received challenge data */
int PLZflag; /* Zlib packet compression */
int cmpblksize; /* Ideal next blocksize */
/* Receiver buffer */
char *rxbuf; /* Receiver buffer */
@@ -233,6 +234,7 @@ int binkp(int role)
bp.local_EOB = FALSE;
bp.remote_EOB = FALSE;
bp.msgs_on_queue = 0;
bp.cmpblksize = SND_BLKSIZE;
#ifdef HAVE_ZLIB_H
bp.PLZflag = WeCan;
#else
@@ -1077,6 +1079,7 @@ TrType binkp_receiver(void)
rxbytes = bp.rxbytes;
bp.rxfp = openfile(binkp2unix(bp.rname), bp.rtime, bp.rsize, &rxbytes, binkp_resync);
bp.rxbytes = rxbytes;
bp.rxcompressed = 0;
if (bp.DidSendGET) {
Syslog('b', "Binkp: DidSendGET is set");
@@ -1203,6 +1206,10 @@ TrType binkp_receiver(void)
closefile();
bp.rxpos = bp.rxpos - bp.rxbytes;
gettimeofday(&rxtvend, &bp.tz);
#ifdef HAVE_ZLIB_H
if (bp.rxcompressed && (bp.PLZflag == Active))
Syslog('+', "Binkp: %s", compress_stat(bp.rxpos, bp.rxcompressed));
#endif
Syslog('+', "Binkp: OK %s", transfertime(rxtvstart, rxtvend, bp.rxpos, FALSE));
rcvdbytes += bp.rxpos;
bp.RxState = RxWaitF;
@@ -1351,6 +1358,7 @@ TrType binkp_transmitter(void)
}
bp.txpos = bp.stxpos = tmp->offset;
bp.txcompressed = 0;
Syslog('+', "Binkp: send \"%s\" as \"%s\"", MBSE_SS(tmp->local), MBSE_SS(tmp->remote));
Syslog('+', "Binkp: size %lu bytes, dated %s", (unsigned long)tmp->size, date(tmp->date));
rc = binkp_send_command(MM_FILE, "%s %lu %ld %ld", MBSE_SS(tmp->remote),
@@ -1395,7 +1403,7 @@ TrType binkp_transmitter(void)
} else if (bp.TxState == TxReadS) {
fseek(bp.txfp, bp.txpos, SEEK_SET);
bp.txlen = fread(bp.txbuf, 1, SND_BLKSIZE, bp.txfp);
bp.txlen = fread(bp.txbuf, 1, bp.cmpblksize, bp.txfp);
eof = feof(bp.txfp);
if ((bp.txlen == 0) || eof) {
@@ -1434,6 +1442,10 @@ TrType binkp_transmitter(void)
if (bp.txpos >= 0) {
bp.stxpos = bp.txpos - bp.stxpos;
#ifdef HAVE_ZLIB_H
if (bp.txcompressed && (bp.PLZflag == Active))
Syslog('+', "Binkp: %s", compress_stat(bp.stxpos, bp.txcompressed));
#endif
Syslog('+', "Binkp: OK %s", transfertime(txtvstart, txtvend, bp.stxpos, TRUE));
} else {
Syslog('+', "Binkp: transmitter skipped file after %ld seconds", txtvend.tv_sec - txtvstart.tv_sec);
@@ -1548,7 +1560,7 @@ int binkp_send_frame(int cmd, char *buf, int len)
unsigned short header = 0;
int rc, id;
#ifdef HAVE_ZLIB_H
int rcz;
int rcz, last;
unsigned long zlen;
char *zbuf;
#endif
@@ -1577,6 +1589,7 @@ int binkp_send_frame(int cmd, char *buf, int len)
}
#ifdef HAVE_ZLIB_H
last = bp.cmpblksize;
if ((bp.PLZflag == Active) && (len > 20)) {
zbuf = calloc(BINKP_ZIPBUFLEN, sizeof(char));
rcz = compress2(zbuf, &zlen, buf, len, 9);
@@ -1585,6 +1598,19 @@ int binkp_send_frame(int cmd, char *buf, int len)
len, zlen, (zlen < len) ?"yes":"no");
if (zlen < len) {
bp.txcompressed += (len - zlen);
/*
* Calculate the perfect blocksize for the next block
* using the current compression ratio. This gives
* a dynamic optimal blocksize. The average maximum
* blocksize on the line will be 4096 bytes.
*/
if (!cmd) {
bp.cmpblksize = ((len * 4) / zlen) * 512;
if (bp.cmpblksize < SND_BLKSIZE)
bp.cmpblksize = SND_BLKSIZE;
if (bp.cmpblksize > (BINKP_PLZ_BLOCK -1))
bp.cmpblksize = (BINKP_PLZ_BLOCK -1);
}
/*
* Rebuild header for compressed block
*/
@@ -1604,6 +1630,8 @@ int binkp_send_frame(int cmd, char *buf, int len)
rc = PUTCHAR(header & 0x00ff);
if (len && !rc)
rc = PUT(buf, len);
if (!cmd)
bp.cmpblksize = SND_BLKSIZE;
}
} else {
rc = PUTCHAR((header >> 8) & 0x00ff);
@@ -1611,6 +1639,8 @@ int binkp_send_frame(int cmd, char *buf, int len)
rc = PUTCHAR(header & 0x00ff);
if (len && !rc)
rc = PUT(buf, len);
if (!cmd)
bp.cmpblksize = SND_BLKSIZE;
}
free(zbuf);
} else {
@@ -1619,13 +1649,18 @@ int binkp_send_frame(int cmd, char *buf, int len)
rc = PUTCHAR(header & 0x00ff);
if (len && !rc)
rc = PUT(buf, len);
if (!cmd)
bp.cmpblksize = SND_BLKSIZE;
}
if (!cmd && (last != bp.cmpblksize))
Syslog('b', "Binkp: adjusting next blocksize to %d bytes", bp.cmpblksize);
#else
rc = PUTCHAR((header >> 8) & 0x00ff);
if (!rc)
rc = PUTCHAR(header & 0x00ff);
if (len && !rc)
rc = PUT(buf, len);
bp.cmpblksize = SND_BLKSIZE;
#endif
FLUSHOUT();
@@ -1896,7 +1931,7 @@ void parse_m_nul(char *msg)
*/
int binkp_poll_frame(void)
{
int c, rc = 0, bcmd;
int c, rc = 0, bcmd;
#ifdef HAVE_ZLIB_H
int plz = FALSE;
unsigned long zlen;
@@ -1946,15 +1981,12 @@ int binkp_poll_frame(void)
}
if ((bp.rxlen == (bp.blklen + 1) && (bp.rxlen >= 1))) {
bp.GotFrame = TRUE;
Syslog('b', "Binkp: got a complete %s frame, mode %scompressed", bp.cmd?"CMD":"DATA", plz?"":"un");
#ifdef HAVE_ZLIB_H
if (plz) {
Syslog('b', "Binkp: rcvd compressed block %d bytes", bp.rxlen -1);
zbuf = calloc(BINKP_ZIPBUFLEN, sizeof(char));
rc = uncompress(zbuf, &zlen, bp.rxbuf, bp.rxlen -1);
Syslog('b', "Binkp: uncompress rc=%d %d => %d", rc, bp.rxlen -1, zlen);
if (rc == Z_OK) {
bp.rxcompressed = (zlen - (bp.rxlen -1));
bp.rxcompressed += (zlen - (bp.rxlen -1));
memmove(bp.rxbuf, zbuf, zlen);
bp.rxlen = zlen +1;
bp.blklen = zlen;
@@ -1966,7 +1998,6 @@ int binkp_poll_frame(void)
free(zbuf);
}
#endif
Syslog('b', "Binkp: bp.rxlen=%d bp.blklen=%d", bp.rxlen, bp.blklen);
bp.rxbuf[bp.rxlen-1] = '\0';
if (bp.cmd) {
bp.messages++;