Function InjectCacheHeader

plugins/xdebug/xdebug.cc:257–291

}

static void
InjectCacheHeader(TSHttpTxn txn, TSMBuffer buffer, TSMLoc hdr)
{
  TSMLoc dst = TS_NULL_MLOC;
  int    status;

  static const char *names[] = {
    "miss",      // TS_CACHE_LOOKUP_MISS,
    "hit-stale", // TS_CACHE_LOOKUP_HIT_STALE,
    "hit-fresh", // TS_CACHE_LOOKUP_HIT_FRESH,
    "skipped"    // TS_CACHE_LOOKUP_SKIPPED
  };

  Dbg(dbg_ctl, "attempting to inject X-Cache header");

  // Create a new response header field.
  dst = FindOrMakeHdrField(buffer, hdr, "X-Cache", lengthof("X-Cache"));
  if (dst == TS_NULL_MLOC) {
    goto done;
  }

  if (TSHttpTxnCacheLookupStatusGet(txn, &status) == TS_ERROR) {
    // If the cache lookup hasn't happened yes, TSHttpTxnCacheLookupStatusGet will fail.
    TSReleaseAssert(TSMimeHdrFieldValueStringInsert(buffer, hdr, dst, -1 /* idx */, "none", 4) == TS_SUCCESS);
  } else {
    const char *msg = (status < 0 || status >= static_cast<int>(countof(names))) ? "unknown" : names[status];

    TSReleaseAssert(TSMimeHdrFieldValueStringInsert(buffer, hdr, dst, -1 /* idx */, msg, -1) == TS_SUCCESS);
  }

done:
  if (dst != TS_NULL_MLOC) {
    TSHandleMLocRelease(buffer, hdr, dst);
  }
}

struct milestone {
  TSMilestonesType mstype;