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//get all the samples and sum them to stdout
//make zstd=1 slow5_mt=1
//gcc -Wall -O2 -I include/ -o get_sample_count_rand test/bench/get_sample_count_rand.c lib/libslow5.a -lm -lz -lzstd -lpthread
#include <stdio.h>
#include <stdlib.h>
#include <slow5/slow5.h>
#include <omp.h>
#include <sys/time.h>
#include <slow5/slow5_mt.h>
static inline double realtime(void) {
struct timeval tp;
struct timezone tzp;
gettimeofday(&tp, &tzp);
return tp.tv_sec + tp.tv_usec * 1e-6;
}
int main(int argc, char *argv[]) {
if(argc != 5) {
fprintf(stderr, "Usage: %s reads.blow5 inread_id.tsv num_thread batch_size\n", argv[0]);
return EXIT_FAILURE;
}
int ret=0;
int batch_size = atoi(argv[4]);
int num_thread = atoi(argv[3]);
uint64_t *sums = malloc(sizeof(uint64_t)*batch_size);
char tmp[1024];
FILE *fpr = fopen(argv[2],"r");
if(fpr==NULL){
fprintf(stderr,"Error in opening file %s for reading\n",argv[2]);
perror("perr: ");;
exit(EXIT_FAILURE);
}
FILE *fpw = stdout;
fputs("#read_id\tsample_count\n", fpw);
double tot_time = 0;
double t0 = realtime();
slow5_rec_t **rec = NULL;
slow5_file_t *sp = slow5_open(argv[1],"r");
if(sp==NULL){
fprintf(stderr,"Error in opening file\n");
exit(EXIT_FAILURE);
}
ret = slow5_idx_load(sp);
if(ret<0){
fprintf(stderr,"Error in loading index\n");
exit(EXIT_FAILURE);
}
tot_time += realtime() - t0;
char **rid = malloc(sizeof(char*)*batch_size);
while(1){
int i=0;
for(i=0; i<batch_size; i++){
if (fscanf(fpr,"%s",tmp) < 1) {
break;
}
rid[i] = strdup(tmp);
}
int num_rid = i;
t0 = realtime();
ret = slow5_get_batch_lazy(&rec, sp, rid, num_rid, num_thread);
tot_time += realtime() - t0;
if(ret!=num_rid){
fprintf(stderr,"Error in getting batch\n");
exit(EXIT_FAILURE);
}
fprintf(stderr,"batch loaded with %d reads\n",ret);
for(int i=0;i<ret;i++){
fprintf(fpw,"%s\t%ld\n",rec[i]->read_id,rec[i]->len_raw_signal);
}
fprintf(stderr,"batch printed with %d reads\n",ret);
t0 = realtime();
slow5_free_batch_lazy(&rec,ret);
tot_time += realtime() - t0;
for(int i=0; i<num_rid; i++){
free(rid[i]);
}
if(num_rid<batch_size){ //this indicates nothing left to read
break;
}
}
t0 = realtime();
slow5_idx_unload(sp);
slow5_close(sp);
tot_time += realtime() - t0;
free(sums);
fclose(fpr);
free(rid);
fprintf(stderr,"Time for getting samples %f\n", tot_time);
return 0;
}
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