Remove dead autoplay/autoplayer trees, land GNUmakefile/eval_tune companions

- Remove autoplay/ and autoplayer/ entirely: old opponent-automation
  scrapers/harnesses (child_process.cc test scaffolding, compiled a.out
  binaries and a .dSYM bundle, saved book/position files, macOS
  ._-prefixed resource-fork cruft) that predate this repo's current
  tooling and were never referenced by anything still in use.

- GNUmakefile: add DIAG_NO_QSEARCH_FUTILITY/CALIBRATE_QSEARCH_FUTILITY
  profile flags and testrecogn.o to the TEST=1 object list. Both are
  companions to already-committed work that never got their own build
  support committed: search.c's qsearch-futility calibration harness
  needs the two profile flags to be buildable at all, and testrecogn.c
  (added alongside the recogn.c bugfix, now committed here too) needs
  to be in TEST=1's OBJS to actually compile/link.

- eval_tune/match_play.py, eval_tune/test_vs_head.sh: real fixes found
  and applied earlier this session -- match_play.py's opening-book
  leak (games weren't actually book-free), missing --hash/--cpus
  (games ran on the 64k-entry/single-cpu memset-zero defaults instead
  of this project's normal 256m/1cpu), a shared-logfile race across
  concurrent match workers, and a report-parsing deadlock on engine
  resignation. test_vs_head.sh reverted to comparing against
  head_reference/typhoon + the live working-tree binary -- it had been
  pointed at a since-deleted, long-stale one-off comparison binary
  (typhoon_allbitboards) since 92fc412, silently invalidating every
  "vs head" self-play check run through it since Sep 4.

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Ka9o3S2eKqh4jNfmxVZ6fH

1 files changed, 0 insertions, 188 deletions

diff --git a/src/autoplay/child_process.cc b/src/autoplay/child_process.cc
deleted file mode 100644
index 6486a0e..0000000
--- a/src/autoplay/child_process.cc
+++ /dev/null
@@ -1,188 +0,0 @@
-#include "child_process.h"
-
-#include <vector>
-#include <cstdio>
-#include <cstdlib>
-#include <unistd.h>
-#include <signal.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-
-namespace util {
-
-void ChildProcess::ParseCommandline(vector<char *> *args) {
-  char *p = commandline_;
-  bool in_quote;
-  do {
-    // Find the start of a chunk.
-    while(*p && isspace(*p)) p++;
-    if (!*p) break;
-    args->push_back(p);
-    in_quote = false;
-
-    // Find the end of the chunk.
-    while (*p) {
-      if (*p == '"') {
-        in_quote = !in_quote;
-      } else if (isspace(*p) && !in_quote) {
-        break;
-      }
-      p++;
-    }
-    if (!*p) break;
-    *p = '\0';
-    p++;
-  } while(1);
-  args->push_back(NULL);
-}
-
-static volatile bool _child_ready = false;
-static void SignalHandler(int signo) {
-  printf("SIGNAL!\n");
-  _child_ready = true;
-}
-
-void ChildProcess::Start() {
-  Stop();
-  vector<char *> args;
-  ParseCommandline(&args);
-
-  if (args.size() > 1) {
-    if (pipe(read_pipe_) != 0) {
-      perror("pipe");
-      exit(-1);
-    }
-    if (pipe(write_pipe_) != 0) {
-      perror("pipe");
-      exit(-1);
-    }
-
-    // Prepare a signal handler to tell us when the child process is
-    // ready.
-    _child_ready = false;
-    if (signal(SIGUSR1, SignalHandler) == SIG_ERR) {
-      perror("signal");
-      exit(-1);
-    }
-    sigset_t zeromask, mask, orig;
-    sigemptyset(&zeromask);
-    sigemptyset(&mask);
-    sigaddset(&mask, SIGUSR1);
-    if (sigprocmask(SIG_BLOCK, &mask, &orig) < 0) {
-      perror("sigprocmask");
-      exit(-1);
-    }
-
-    // Fork.
-    pid_ = fork();
-    if (pid_ < 0) {
-      perror("fork");
-      exit(-1);
-    }
-    if (pid_ == 0) {
-      printf("In the child process...\n");
-
-      // In the child process we do not need the pipes for parent
-      // reads and writes.
-      close(write_pipe_[1]);
-      close(read_pipe_[0]);
-      if (dup2(write_pipe_[0], fileno(stdin)) < 0) {
-        perror("dup2");
-        exit(-1);
-      }
-      close(write_pipe_[0]);
-      if (dup2(read_pipe_[1], fileno(stdout)) < 0) {
-        perror("dup2");
-        exit(-1);
-      }
-      if (dup2(fileno(stdout), fileno(stderr)) < 0) {
-        perror("dup2");
-        exit(-1);
-      }
-      close(read_pipe_[1]);
-
-      // Tell the parent that the pipes are set up then exec the child
-      // image.
-      kill(getppid(), SIGUSR1);
-      execvp(args[0], &(args[0]));
-      perror("exec");
-      exit(-1);
-    } else {
-      printf("In the parent process waiting...\n");
-      while(!_child_ready) {
-        sigsuspend(&zeromask);
-      }
-      printf("PARENT WAKEUP!\n");
-      _child_ready = false;
-      if (sigprocmask(SIG_SETMASK, &orig, NULL) < 0) {
-        perror("sigprocmask");
-        exit(-1);
-      }
-      close(write_pipe_[0]);
-      close(read_pipe_[1]);
-      from_ = fdopen(read_pipe_[0], "r");
-      to_ = fdopen(write_pipe_[1], "w");
-      setbuf(from_, NULL);
-      setbuf(to_, NULL);
-      running_ = true;
-      name_ = args[0];
-    }
-  }
-}
-
-void ChildProcess::Stop() {
-  if (!running_) {
-    return;
-  }
-  fclose(to_);
-  fclose(from_);
-  close(write_pipe_[1]);
-  close(read_pipe_[0]);
-  kill(pid_, SIGTERM);
-  int x;
-  waitpid(pid_, &x, 0);
-}
-
-void ChildProcess::Send(char *line) {
-  if (!running_) {
-    return;
-  }
-  fprintf(to_, "%s", line);
-  printf("%s sent: %s", name_, line);
-}
-
-void ChildProcess::Receive(char *line, int size) {
-  if (!size) return;
-  *line = '\0';
-  if (!running_) {
-    return;
-  }
-  if (!Poll()) {
-    return;
-  }
-  fgets(line, size, from_);
-  printf("%s recv: %s\n", name_, line);
-}
-
-bool ChildProcess::Poll() {
-  fd_set myset;
-  FD_ZERO(&myset);
-  FD_SET(read_pipe_[0], &myset);
-  timeval mytime;
-  mytime.tv_sec = 0;
-  mytime.tv_usec = 0;
-  return select(read_pipe_[0] + 1, &myset, NULL, NULL, &mytime) > 0;
-}
-
-void ChildProcess::Flush() {
-  static char line[1000];
-  while (Poll()) {
-    Receive(line, 1000);
-    printf("flush: %s", line);
-    if (!line[0]) {
-      break;
-    }
-  }
-}
-
-}  // namespace