}
KSORT_INIT(sort, bam1_p, bam1_lt)
-static void sort_blocks(int n, int k, bam1_p *buf, const char *prefix, const bam_header_t *h)
+static void sort_blocks(int n, int k, bam1_p *buf, const char *prefix, const bam_header_t *h, int is_stdout)
{
char *name;
int i;
name = (char*)calloc(strlen(prefix) + 20, 1);
if (n >= 0) sprintf(name, "%s.%.4d.bam", prefix, n);
else sprintf(name, "%s.bam", prefix);
- fp = bam_open(name, "w");
+ fp = is_stdout? bam_dopen(fileno(stdout), "w") : bam_open(name, "w");
if (fp == 0) {
fprintf(stderr, "[sort_blocks] fail to create file %s.\n", name);
free(name);
and then merge them by calling bam_merge_core(). This function is
NOT thread safe.
*/
-void bam_sort_core(int is_by_qname, const char *fn, const char *prefix, size_t max_mem)
+void bam_sort_core_ext(int is_by_qname, const char *fn, const char *prefix, size_t max_mem, int is_stdout)
{
int n, ret, k, i;
size_t mem;
mem += ret;
++k;
if (mem >= max_mem) {
- sort_blocks(n++, k, buf, prefix, header);
+ sort_blocks(n++, k, buf, prefix, header, is_stdout);
mem = 0; k = 0;
}
}
if (ret != -1)
fprintf(stderr, "[bam_sort_core] truncated file. Continue anyway.\n");
- if (n == 0) sort_blocks(-1, k, buf, prefix, header);
+ if (n == 0) sort_blocks(-1, k, buf, prefix, header, is_stdout);
else { // then merge
char **fns, *fnout;
fprintf(stderr, "[bam_sort_core] merging from %d files...\n", n+1);
- sort_blocks(n++, k, buf, prefix, header);
+ sort_blocks(n++, k, buf, prefix, header, is_stdout);
fnout = (char*)calloc(strlen(prefix) + 20, 1);
- sprintf(fnout, "%s.bam", prefix);
+ if (is_stdout) sprintf(fnout, "-");
+ else sprintf(fnout, "%s.bam", prefix);
fns = (char**)calloc(n, sizeof(char*));
for (i = 0; i < n; ++i) {
fns[i] = (char*)calloc(strlen(prefix) + 20, 1);
bam_close(fp);
}
+void bam_sort_core(int is_by_qname, const char *fn, const char *prefix, size_t max_mem)
+{
+ bam_sort_core_ext(is_by_qname, fn, prefix, max_mem, 0);
+}
+
int bam_sort(int argc, char *argv[])
{
size_t max_mem = 500000000;
- int c, is_by_qname = 0;
- while ((c = getopt(argc, argv, "nm:")) >= 0) {
+ int c, is_by_qname = 0, is_stdout = 0;
+ while ((c = getopt(argc, argv, "nom:")) >= 0) {
switch (c) {
+ case 'o': is_stdout = 1; break;
case 'n': is_by_qname = 1; break;
case 'm': max_mem = atol(optarg); break;
}
}
if (optind + 2 > argc) {
- fprintf(stderr, "Usage: samtools sort [-n] [-m <maxMem>] <in.bam> <out.prefix>\n");
+ fprintf(stderr, "Usage: samtools sort [-on] [-m <maxMem>] <in.bam> <out.prefix>\n");
return 1;
}
- bam_sort_core(is_by_qname, argv[optind], argv[optind+1], max_mem);
+ bam_sort_core_ext(is_by_qname, argv[optind], argv[optind+1], max_mem, is_stdout);
return 0;
}