change: simplify readout of offsets

laumann

Aug 16, 2022, 8:58 PM

AEMTSEJXOEXQTJEVUK3NGBP4ESM4UOFIXTBYUV7LEDZDJNKIA6CAC

Dependencies

• [2] Q7TKZCJP Add initial support for reading the offsets from a (fixed) change

Change contents

• edit in change.c at line 9
  [2.1212]→[2.1212:1488](∅→∅)
  −

  − /** Read a uint64_t from byte buffer as little endian */

  − #define legetu64(buf) (((uint64_t)buf[7]) << 56 | (uint64_t)buf[6] << 48 | (uint64_t)buf[5] << 40 | (uint64_t)buf[4] << 32 | (uint64_t)buf[3] << 24 | (uint64_t)buf[2] << 16 | (uint64_t)buf[1] << 8 | (uint64_t)buf[0]);
• edit in change.c at line 13
  [2.1539]→[2.1539:1547](∅→∅)
  − /* */
• replacement in change.c at line 15
  [2.1587]→[2.1587:1603](∅→∅)
  − uint8_t *bufp;
  [2.1587]

  [2.1603]
  + uint64_t *bufp;
• replacement in change.c at line 28
  [2.1848]→[2.1848:2183](∅→∅)
  − bufp = (uint8_t *)buf;

  − off->version = legetu64(bufp);

  − bufp += 8;

  − off->hashed_len = legetu64(bufp)

  − bufp += 8;

  − off->unhashed_off = legetu64(bufp)

  − bufp += 8;

  − off->unhashed_len = legetu64(bufp)

  − bufp += 8;

  − off->contents_off = legetu64(bufp)

  − bufp += 8;

  − off->contents_len = legetu64(bufp)

  − bufp += 8;

  − off->total = legetu64(bufp)
  [2.1848]

  [2.2183]
  +

  + /** Cast as []uint64_t */

  + bufp = (uint64_t *)buf;

  + off->version = *bufp++;

  + off->hashed_len = *bufp++;

  + off->unhashed_off = *bufp++;

  + off->unhashed_len = *bufp++;

  + off->contents_off = *bufp++;

  + off->contents_len = *bufp++;

  + off->total = *bufp;
• edit in change.c at line 42
  [2.2198]→[2.2198:2199](∅→∅)
  −