Move Serializer into its own file.

[plocate] / plocate.cpp

diff --git a/plocate.cpp b/plocate.cpp
index 926bbf1977831562217829cc07e7aaddf56ca4f8..2f3129326662bd52512f9ed50ba011acf627627f 100644 (file)
--- a/plocate.cpp
+++ b/plocate.cpp
@@ -2,34 +2,36 @@
 #include "dprintf.h"
 #include "io_uring_engine.h"
 #include "parse_trigrams.h"
+#include "serializer.h"
 #include "turbopfor.h"
 #include "unique_sort.h"
 
 #include <algorithm>
-#include <atomic>
 #include <assert.h>
+#include <atomic>
 #include <chrono>
 #include <condition_variable>
+#include <deque>
 #include <fcntl.h>
 #include <fnmatch.h>
 #include <functional>
 #include <getopt.h>
 #include <inttypes.h>
-#include <iosfwd>
 #include <iterator>
 #include <limits>
+#include <locale.h>
 #include <map>
 #include <memory>
 #include <mutex>
-#include <queue>
 #include <regex.h>
-#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdint.h>
 #include <string.h>
 #include <string>
 #include <string_view>
 #include <thread>
+#include <tuple>
 #include <unistd.h>
 #include <unordered_map>
 #include <unordered_set>
@@ -57,83 +59,6 @@ ZSTD_DDict *ddict = nullptr;
 
 regex_t compile_regex(const string &needle);
 
-void apply_limit()
-{
-       if (--limit_left > 0) {
-               return;
-       }
-       dprintf("Done in %.1f ms, found %" PRId64 " matches.\n",
-               1e3 * duration<float>(steady_clock::now() - start).count(), limit_matches);
-       if (only_count) {
-               printf("%" PRId64 "\n", limit_matches);
-       }
-       exit(0);
-}
-
-class ResultReceiver {
-public:
-       virtual ~ResultReceiver() = default;
-       virtual void print(uint64_t seq, uint64_t skip, const string msg) = 0;
-};
-
-class Serializer : public ResultReceiver {
-public:
-       ~Serializer() { assert(limit_left <= 0 || pending.empty()); }
-       void print(uint64_t seq, uint64_t skip, const string msg) override;
-
-private:
-       uint64_t next_seq = 0;
-       struct Element {
-               uint64_t seq, skip;
-               string msg;
-
-               bool operator<(const Element &other) const
-               {
-                       return seq > other.seq;
-               }
-       };
-       priority_queue<Element> pending;
-};
-
-void Serializer::print(uint64_t seq, uint64_t skip, const string msg)
-{
-       if (only_count) {
-               if (!msg.empty()) {
-                       apply_limit();
-               }
-               return;
-       }
-
-       if (next_seq != seq) {
-               pending.push(Element{ seq, skip, move(msg) });
-               return;
-       }
-
-       if (!msg.empty()) {
-               if (print_nul) {
-                       printf("%s%c", msg.c_str(), 0);
-               } else {
-                       printf("%s\n", msg.c_str());
-               }
-               apply_limit();
-       }
-       next_seq += skip;
-
-       // See if any delayed prints can now be dealt with.
-       while (!pending.empty() && pending.top().seq == next_seq) {
-               if (!pending.top().msg.empty()) {
-                       if (print_nul) {
-                               printf("%s%c", pending.top().msg.c_str(), 0);
-                       } else {
-                               printf("%s\n", pending.top().msg.c_str());
-                       }
-                       apply_limit();
-               }
-               next_seq += pending.top().skip;
-               pending.pop();
-       }
-}
-
 struct Needle {
        enum { STRSTR,
               REGEX,
@@ -399,7 +324,7 @@ size_t scan_docids(const vector<Needle> &needles, const vector<uint32_t> &docids
 {
        Serializer docids_in_order;
        AccessRXCache access_rx_cache(engine);
-       atomic<uint64_t> matched{0};
+       atomic<uint64_t> matched{ 0 };
        for (size_t i = 0; i < docids.size(); ++i) {
                uint32_t docid = docids[i];
                corpus.get_compressed_filename_block(docid, [i, &matched, &needles, &access_rx_cache, &docids_in_order](string_view compressed) {
@@ -427,7 +352,8 @@ struct WorkerThread {
 
 class WorkerThreadReceiver : public ResultReceiver {
 public:
-       WorkerThreadReceiver(WorkerThread *wt) : wt(wt) {}
+       WorkerThreadReceiver(WorkerThread *wt)
+               : wt(wt) {}
 
        void print(uint64_t seq, uint64_t skip, const string msg) override
        {