#include "rsync.h"
extern int verbose;
-extern int remote_version;
extern int csum_length;
extern struct stats stats;
extern int io_error;
extern int am_server;
-/*
- receive the checksums for a buffer
- */
+/**
+ * @file
+ *
+ * The sender gets checksums from the generator, calculates deltas,
+ * and transmits them to the receiver. The sender process runs on the
+ * machine holding the source files.
+ **/
+
+
+void read_sum_head(int f, struct sum_struct *sum)
+{
+ extern int remote_version;
+
+ sum->count = read_int(f);
+ sum->blength = read_int(f);
+ if (remote_version < 27)
+ {
+ sum->s2length = csum_length;
+ } else {
+ sum->s2length = read_int(f);
+ }
+ sum->remainder = read_int(f);
+}
+
+/**
+ * Receive the checksums for a buffer
+ **/
static struct sum_struct *receive_sums(int f)
{
struct sum_struct *s;
s = (struct sum_struct *)malloc(sizeof(*s));
if (!s) out_of_memory("receive_sums");
- s->count = read_int(f);
- s->n = read_int(f);
- s->remainder = read_int(f);
+ read_sum_head(f, s);
+
s->sums = NULL;
if (verbose > 3)
- rprintf(FINFO,"count=%d n=%d rem=%d\n",
- s->count,s->n,s->remainder);
+ rprintf(FINFO,"count=%ld n=%ld rem=%ld\n",
+ (long) s->count, (long) s->blength,
+ (long) s->remainder);
if (s->count == 0)
return(s);
s->sums = (struct sum_buf *)malloc(sizeof(s->sums[0])*s->count);
if (!s->sums) out_of_memory("receive_sums");
- for (i=0;i<s->count;i++) {
+ for (i=0; i < (int) s->count;i++) {
s->sums[i].sum1 = read_int(f);
- read_buf(f,s->sums[i].sum2,csum_length);
+ read_buf(f,s->sums[i].sum2,s->s2length);
s->sums[i].offset = offset;
s->sums[i].i = i;
- if (i == s->count-1 && s->remainder != 0) {
+ if (i == (int) s->count-1 && s->remainder != 0) {
s->sums[i].len = s->remainder;
} else {
- s->sums[i].len = s->n;
+ s->sums[i].len = s->blength;
}
offset += s->sums[i].len;
if (verbose > 3)
- rprintf(FINFO,"chunk[%d] len=%d offset=%d sum1=%08x\n",
- i,s->sums[i].len,(int)s->sums[i].offset,s->sums[i].sum1);
+ rprintf(FINFO,"chunk[%d] len=%d offset=%.0f sum1=%08x\n",
+ i,s->sums[i].len,(double)s->sums[i].offset,s->sums[i].sum1);
}
s->flength = offset;
void send_files(struct file_list *flist,int f_out,int f_in)
{
- int fd;
+ int fd = -1;
struct sum_struct *s;
- struct map_struct *buf;
+ struct map_struct *buf = NULL;
STRUCT_STAT st;
char fname[MAXPATHLEN];
int i;
int phase = 0;
extern struct stats stats;
struct stats initial_stats;
+ extern int write_batch; /* dw */
+ extern int read_batch; /* dw */
+ int checksums_match; /* dw */
+ int buff_len; /* dw */
+ char buff[CHUNK_SIZE]; /* dw */
+ int j; /* dw */
+ int done; /* dw */
if (verbose > 2)
rprintf(FINFO,"send_files starting\n");
- setup_readbuffer(f_in);
-
while (1) {
int offset=0;
i = read_int(f_in);
if (i == -1) {
- if (phase==0 && remote_version >= 13) {
+ if (phase==0) {
phase++;
csum_length = SUM_LENGTH;
write_int(f_out,-1);
rprintf(FINFO,"send_files(%d,%s)\n",i,fname);
if (dry_run) {
- if (!am_server) {
- log_transfer(file, fname+offset);
+ if (!am_server && verbose) { /* log transfer */
+ rprintf(FINFO, "%s\n", fname+offset);
}
write_int(f_out,i);
continue;
rprintf(FERROR,"receive_sums failed\n");
return;
}
+
+ if (write_batch)
+ write_batch_csum_info(&i,flist->count,s);
- fd = open(fname,O_RDONLY);
- if (fd == -1) {
- io_error = 1;
- rprintf(FERROR,"send_files failed to open %s: %s\n",
- fname,strerror(errno));
- free_sums(s);
- continue;
- }
+ if (!read_batch) {
+ fd = do_open(fname, O_RDONLY, 0);
+ if (fd == -1) {
+ io_error = 1;
+ rprintf(FERROR,"send_files failed to open %s: %s\n",
+ fname,strerror(errno));
+ free_sums(s);
+ continue;
+ }
- /* map the local file */
- if (do_fstat(fd,&st) != 0) {
- io_error = 1;
- rprintf(FERROR,"fstat failed : %s\n",strerror(errno));
- free_sums(s);
- close(fd);
- return;
- }
+ /* map the local file */
+ if (do_fstat(fd,&st) != 0) {
+ io_error = 1;
+ rprintf(FERROR,"fstat failed : %s\n",strerror(errno));
+ free_sums(s);
+ close(fd);
+ return;
+ }
- if (st.st_size > 0) {
- buf = map_file(fd,st.st_size);
- } else {
- buf = NULL;
- }
+ if (st.st_size > 0) {
+ buf = map_file(fd,st.st_size);
+ } else {
+ buf = NULL;
+ }
- if (verbose > 2)
- rprintf(FINFO,"send_files mapped %s of size %d\n",
- fname,(int)st.st_size);
+ if (verbose > 2)
+ rprintf(FINFO,"send_files mapped %s of size %.0f\n",
+ fname,(double)st.st_size);
- write_int(f_out,i);
+ write_int(f_out,i);
- write_int(f_out,s->count);
- write_int(f_out,s->n);
- write_int(f_out,s->remainder);
+ if (write_batch)
+ write_batch_delta_file((char *)&i,sizeof(i));
+
+ write_sum_head(f_out, s);
+ }
if (verbose > 2)
- rprintf(FINFO,"calling match_sums %s\n",fname);
+ if (!read_batch)
+ rprintf(FINFO,"calling match_sums %s\n",fname);
- if (!am_server) {
- log_transfer(file, fname+offset);
+ if (!am_server && verbose) { /* log transfer */
+ rprintf(FINFO, "%s\n", fname+offset);
}
set_compression(fname);
-
- match_sums(f_out,s,buf,st.st_size);
- log_send(file, &initial_stats);
-
- if (buf) unmap_file(buf);
- close(fd);
+ if (read_batch) { /* dw */
+ /* read checksums originally computed on sender side */
+ read_batch_csum_info(i, s, &checksums_match);
+ if (checksums_match) {
+ read_batch_delta_file( (char *) &j, sizeof(int) );
+ if (j != i) { /* if flist index entries don't match*/
+ rprintf(FINFO,"index mismatch in send_files\n");
+ rprintf(FINFO,"read index = %d flist ndx = %d\n",j,i);
+ close_batch_delta_file();
+ close_batch_csums_file();
+ exit_cleanup(1);
+ }
+ else {
+ write_int(f_out,j);
+ write_sum_head(f_out, s);
+ done=0;
+ while (!done) {
+ read_batch_delta_file( (char *) &buff_len, sizeof(int) );
+ write_int(f_out,buff_len);
+ if (buff_len == 0) {
+ done = 1;
+ }
+ else {
+ if (buff_len > 0) {
+ read_batch_delta_file(buff, buff_len);
+ write_buf(f_out,buff,buff_len);
+ }
+ }
+ } /* end while */
+ read_batch_delta_file( buff, MD4_SUM_LENGTH);
+ write_buf(f_out, buff, MD4_SUM_LENGTH);
+
+ } /* j=i */
+ } else { /* not checksum match */
+ rprintf (FINFO,"readbatch & checksums don't match\n");
+ rprintf (FINFO,"filename=%s is being skipped\n",
+ fname);
+ continue;
+ }
+ } else {
+ match_sums(f_out,s,buf,st.st_size);
+ log_send(file, &initial_stats);
+ }
+
+ if (!read_batch) { /* dw */
+ if (buf) unmap_file(buf);
+ close(fd);
+ }
free_sums(s);
match_report();
write_int(f_out,-1);
+ if (write_batch || read_batch) { /* dw */
+ close_batch_csums_file();
+ close_batch_delta_file();
+ }
+
}
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff