Changeset c111da2 in mainline for uspace/lib/c/generic

Timestamp:

2025-10-09T15:44:52Z (2 months ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

master

Children:

cfd04c4

Parents:

1a96db9

Message:

Create non-zero size file in Navigator, new newfile utility.

File:

• uspace/lib/c/generic/capa.c (modified) (2 diffs)

uspace/lib/c/generic/capa.c

@@ -1 +1 @@
 /*
- * Copyright (c) 2015 Jiri Svoboda
+ * Copyright (c) 2025 Jiri Svoboda
  * All rights reserved.
  *
@@ -233 +233 @@
 }
 
+errno_t capa_format_buf(capa_spec_t *capa, char *buf, size_t bufsize)
+{
+        errno_t rc;
+        const char *sunit;
+        uint64_t ipart;
+        uint64_t fpart;
+        uint64_t div;
+
+        sunit = NULL;
+
+        assert(capa->cunit < CU_LIMIT);
+
+        rc = ipow10_u64(capa->dp, &div);
+        if (rc != EOK)
+                return rc;
+
+        ipart = capa->m / div;
+        fpart = capa->m % div;
+
+        sunit = cu_str[capa->cunit];
+        if (capa->dp > 0) {
+                snprintf(buf, bufsize, "%" PRIu64 ".%0*" PRIu64 " %s", ipart,
+                    (int)capa->dp, fpart, sunit);
+        } else {
+                snprintf(buf, bufsize, "%" PRIu64 " %s", ipart, sunit);
+        }
+
+        return EOK;
+}
+
+errno_t capa_blocks_format(uint64_t nblocks, size_t block_size,
+    char **rptr)
+{
+        capa_spec_t capa;
+
+        capa_from_blocks(nblocks, block_size, &capa);
+        capa_simplify(&capa);
+        return capa_format(&capa, rptr);
+}
+
+void capa_blocks_format_buf(uint64_t nblocks, size_t block_size,
+    char *buf, size_t bsize)
+{
+        capa_spec_t capa;
+        errno_t rc;
+
+        capa_from_blocks(nblocks, block_size, &capa);
+        capa_simplify(&capa);
+
+        /* Should not get range error because of nblocks * block_size limits */
+        rc = capa_format_buf(&capa, buf, bsize);
+        assert(rc == EOK);
+        (void)rc;
+}
+
 static errno_t capa_digit_val(char c, int *val)
 {