debug(D_CHIRP,"couldn't talk to %s: %s\n",file->host,strerror(errno)); \
current = time(0); \
nexttry = MIN(stoptime,current+delay); \
debug(D_CHIRP,"try again in %d seconds\n",(int)(nexttry-current)); \
sleep_until(nexttry); \
if(delay==0) {\
delay = 1;\
} else {\
delay = MIN(delay*2,MAX_DELAY); \
}\
}
INT64_T chirp_reli_pread_unbuffered( struct chirp_file *file, void *data, INT64_T length, INT64_T offset, time_t stoptime )
{
RETRY_FILE( result = chirp_client_pread(client,file->fd,data,length,offset,stoptime); )
}
static INT64_T chirp_reli_pread_buffered( struct chirp_file *file, void *data, INT64_T length, INT64_T offset, time_t stoptime )
{
if(file->buffer_valid) {
if(offset >= file->buffer_offset && offset < (file->buffer_offset+file->buffer_valid) ) {
INT64_T blength;
blength = MIN(length,file->buffer_offset+file->buffer_valid-offset);
memcpy(data,&file->buffer[offset-file->buffer_offset],blength);
return blength;
}
}
chirp_reli_flush(file,stoptime);
int chirp_read(int argc, char **argv) {
int fileOffset = 2;
int offset = 0;
int stride_length = 0;
int stride_skip = 0;
bool more = true;
while (more && fileOffset + 1 < argc) {
if (strcmp(argv[fileOffset], "-offset") == 0) {
offset = strtol(argv[fileOffset + 1], NULL, 10);
fileOffset += 2;
more = true;
}
else if (strcmp(argv[fileOffset], "-stride") == 0
&& fileOffset + 2 < argc) {
stride_length = strtol(argv[fileOffset + 1], NULL, 10);
stride_skip = strtol(argv[fileOffset + 2], NULL, 10);
fileOffset += 3;
more = true;
}
else {
more = false;
}
}
if(fileOffset + 2 != argc) {
printf("condor_chirp read [-offset offset] [-stride length skip] "
"remotepath length\n");
return -1;
}
char *path = argv[fileOffset];
int length = strtol(argv[fileOffset + 1], NULL, 10);
struct chirp_client *client = 0;
CONNECT_STARTER(client);
int fd = chirp_client_open(client, path, "r", 0);
if(fd < 0) {
DISCONNECT_AND_RETURN(client, fd);
}
void* buf = malloc(length+1);
int ret_val = -1;
// Use read
if(offset == 0 && stride_length == 0 && stride_skip == 0) {
ret_val = chirp_client_read(client, fd, buf, length);
}
// Use pread
else if(offset != 0 && stride_length == 0 && stride_skip == 0) {
ret_val = chirp_client_pread(client, fd, buf, length, offset);
}
// Use sread
else {
ret_val = chirp_client_sread(client, fd, buf, length, offset,
stride_length, stride_skip);
}
if(ret_val >= 0) {
char* to_print = (char*)buf;
to_print[length] = '\0';
printf("%s\n", to_print);
}
free(buf);
CLOSE_DISCONNECT_AND_RETURN(client, fd, ret_val);
}
