src/DelaySpec.cc

   1 /*
   2  * Copyright (C) 1996-2023 The Squid Software Foundation and contributors
   3  *
   4  * Squid software is distributed under GPLv2+ license and includes
   5  * contributions from numerous individuals and organizations.
   6  * Please see the COPYING and CONTRIBUTORS files for details.
   7  */
   8
   9 /* DEBUG: section 77    Delay Pools */
  10
  11 #include "squid.h"
  12
  13 #if USE_DELAY_POOLS
  14 #include "cache_cf.h"
  15 #include "DelaySpec.h"
  16 #include "Parsing.h"
  17 #include "Store.h"
  18
  19 DelaySpec::DelaySpec() : restore_bps(-1), max_bytes (-1)
  20 {}
  21
  22 void
  23 DelaySpec::stats (StoreEntry * sentry, char const *label) const
  24 {
  25     if (restore_bps == -1) {
  26         storeAppendPrintf(sentry, "\t%s:\n\t\tDisabled.\n\n", label);
  27         return;
  28     }
  29
  30     storeAppendPrintf(sentry, "\t%s:\n", label);
  31     storeAppendPrintf(sentry, "\t\tMax: %" PRId64 "\n", max_bytes);
  32     storeAppendPrintf(sentry, "\t\tRestore: %d\n", restore_bps);
  33 }
  34
  35 void
  36 DelaySpec::dump (StoreEntry *entry) const
  37 {
  38     storeAppendPrintf(entry, " %d/%" PRId64 "", restore_bps, max_bytes);
  39 }
  40
  41 void
  42 DelaySpec::parse()
  43 {
  44     // get the token.
  45     char *token = ConfigParser::NextToken();
  46     if (!token) {
  47         self_destruct();
  48         return;
  49     }
  50
  51     // no-limit value
  52     if (strcmp(token, "none") == 0 || token[0] == '-') {
  53         restore_bps = -1;
  54         max_bytes = -1;
  55         return;
  56     }
  57
  58     // parse the first digits into restore_bps
  59     const char *p = nullptr;
  60     if (!StringToInt(token, restore_bps, &p, 10) || *p != '/') {
  61         debugs(77, DBG_CRITICAL, "ERROR: invalid delay rate '" << token << "'. Expecting restore/max or 'none'.");
  62         self_destruct();
  63     }
  64     p++; // increment past the '/'
  65
  66     // parse the rest into max_bytes
  67     if (!StringToInt64(p, max_bytes, nullptr, 10)) {
  68         debugs(77, DBG_CRITICAL, "ERROR: restore rate in '" << token << "' is not a number.");
  69         self_destruct();
  70     }
  71 }
  72
  73 #endif
  74