Add --bps option to wwivutil print

This emulates a bps rate when displaying the file.

bbs/conf.cpp

@@ -152,7 +152,7 @@ void jump_conf(ConferenceType conftype) {
   auto& uc = conftype == ConferenceType::CONF_SUBS ? a()->uconfsub : a()->uconfdir;
   if (const auto o = conf.try_conf(ch)) {
     setuconf(conf, o.value().key.key(), -1);
-    for (int i=0; i < size_int(uc); i++) {
+    for (auto i=0; i < size_int(uc); i++) {
       if (ch == at(uc, i).key.key()) {
         if (conftype == ConferenceType::CONF_SUBS) {
           a()->sess().set_current_user_sub_conf_num(i);
@@ -164,44 +164,13 @@ void jump_conf(ConferenceType conftype) {
   }
 }
 
-/*
- * Returns true if subnum is allocated to conference c, 0 otherwise.
- */
-bool in_conference(subconf_t subnum, confrec_430_t* c) {
-  if (!c) {
-    return false;
-  }
-  for (const auto& s : c->subs) {
-    if (s == subnum) {
-      return true;
-    }
-  }
-  return false;
-}
-
-/*
- * Returns first available conference key, of a specified conference
- * type.
- */
-char first_available_key(const Conference& conf) {
-  if (conf.size() == MAX_CONFERENCES) {
-    return 0;
-  }
-  if (conf.confs().empty()) {
-    return 'A';
-  }
-  auto cv = conf.confs();
-  const auto last = std::end(cv);
-  return static_cast<char>(last->key.key() + 1);
-}
-
 static int display_conf_subs(Conference& conf) {
   auto abort = false;
   bout.cls();
   bout.bpla("|#2NN  Name                                    ConfList", &abort);
   bout.bpla("|#7--- ======================================= ==========================", &abort);
 
-  int count = 0;
+  auto count = 0;
   switch (conf.type()) {
   case ConferenceType::CONF_SUBS: {
     count = size_int(a()->subs().subs());
@@ -233,7 +202,7 @@ static conf_set_t& get_conf_set(Conference& conf, int num) {
 }
 
 void edit_conf_subs(Conference& conf) {
-  bool changed{false};
+  auto changed{false};
   while (!a()->sess().hangup()) {
     const auto count = display_conf_subs(conf);
     bout.nl();
@@ -385,7 +354,7 @@ static void delete_conf(Conference& conf, char key) {
  * Function for editing conferences.
  */
 void conf_edit(Conference& conf) {
-  bool done = false;
+  auto done = false;
 
   do {
     bout.cls();

bbs/conf.h

@@ -42,8 +42,6 @@ class conf_info_t {
   int num_subs_or_dirs = 0;
 };
 
-bool in_conference(wwiv::sdk::subconf_t subnum, wwiv::sdk::confrec_430_t* c);
-
 void tmp_disable_conf(bool disable);
 void reset_disable_conf();
 conf_info_t get_conf_info(wwiv::sdk::ConferenceType conftype);
@@ -52,7 +50,8 @@ void jump_conf(wwiv::sdk::ConferenceType conftype);
 void conf_edit(wwiv::sdk::Conference& conf);
 void list_confs(wwiv::sdk::ConferenceType conftype, bool list_subs);
 void list_confs(wwiv::sdk::Conference& conf, bool list_subs = true);
-std::optional<char> select_conf(const std::string& prompt_text, wwiv::sdk::Conference& conf, bool listconfs);
+std::optional<char> select_conf(const std::string& prompt_text, wwiv::sdk::Conference& conf,
+                                bool listconfs);
 
 /**
  * Select the conferences to which dirs and subs belong.

wwivutil/print/print.cpp

@@ -18,8 +18,10 @@
 #include "wwivutil/print/print.h"
 
 #include "core/command_line.h"
+#include "core/datetime.h"
 #include "core/log.h"
 #include "core/file.h"
+#include "core/os.h"
 #include "core/stl.h"
 #include "core/strings.h"
 #include "core/textfile.h"
@@ -35,7 +37,8 @@
 using std::cout;
 using std::endl;
 using wwiv::core::BooleanCommandLineArgument;
-using namespace wwiv::core;
+using namespace std::chrono_literals;
+using namespace wwiv::os;
 using namespace wwiv::sdk;
 using namespace wwiv::sdk::ansi;
 using namespace wwiv::strings;
@@ -122,6 +125,7 @@ int PrintCommand::Execute() {
   } else {
     std::unique_ptr<LocalIO> io;
     const auto io_type = sarg("io");
+    const auto bps = iarg("bps");
 #ifdef _WIN32
     if (io_type == "win32") {
       io = std::make_unique<Win32ConsoleIO>();
@@ -142,12 +146,23 @@ int PrintCommand::Execute() {
     HeartCodeFilter heart(&ansi, {7, 11, 14, 5, 31, 2, 12, 9, 6, 3});
 
     screen.clear();
+    auto count = 0;
+    const auto allowed_per_100ms = bps / 100;
+
+    auto start = core::DateTime::now();
     for (const auto c : s) {
+      if (allowed_per_100ms > 0 && (++count % allowed_per_100ms == 0)) {
+        sleep_for(100ms);
+      }
       heart.write(c);
     }
+    auto end = core::DateTime::now();
+
     if (need_pause) {
       io->GetChar();
     }
+    VLOG(1) << "Wrote: " << count << " chars.";
+    VLOG(1) << "CPS = " << count / (end.to_time_t() - start.to_time_t());
   }
   return 0;
 }
@@ -160,6 +175,7 @@ bool PrintCommand::AddSubCommands() {
 #else
                 "curses"});
 #endif
+  add_argument({"bps", "What BPS to emulate", "14400"});
   return true;
 }