Use `struct tm` to store time

log.cpp

@@ -6,9 +6,10 @@
 
 std::vector<LogEntry> log_entries;
 
-LogEntry::LogEntry(time_t time_, std::string message_) : time(time_), message(std::move(message_)) {
+LogEntry::LogEntry(time_t time, std::string message_) : message(std::move(message_)) {
     size_t pos;
 
+    localtime_r(&time, &this->time);
     while ((pos = this->message.find('\n')) != std::string::npos) {
         this->message.replace(pos, 1, 1, ' ');
     }
@@ -16,15 +17,14 @@ LogEntry::LogEntry(time_t time_, std::string message_) : time(time_), message(st
 
 
 std::string to_string(const LogEntry& entry) {
-    struct tm tm;
     char time_as_str[128] = {0};
-    strftime(time_as_str, 127 * sizeof(char), "%c", localtime_r(&entry.time, &tm));
+    strftime(time_as_str, 127 * sizeof(char), "%c", &entry.time);
     return std::string(1, '[') + time_as_str + "] " + entry.message;
 }
 
 void print_log(const LogEntry& entry) {
     char time_as_str[128] = {0};
-    strftime(time_as_str, 127 * sizeof(char), "%c", localtime(&entry.time));
+    strftime(time_as_str, 127 * sizeof(char), "%c", &entry.time);
     fprintf(stderr, "[%s] %s\n", time_as_str, entry.message.c_str());
 }
 

log.h

@@ -1,14 +1,15 @@
 #pragma once
 
+#include <ctime>
 #include <string>
 #include <vector>
 
 struct LogEntry {
-    time_t time;
+    struct tm time;
     std::string message;
 
     LogEntry() = default;
-    LogEntry(time_t time_, std::string message_);
+    LogEntry(time_t time, std::string message_);
 };
 extern std::vector<LogEntry> log_entries;
 

logcat_entry.cpp

@@ -70,8 +70,7 @@ static inline std::string rightpad(const std::string& str, size_t characters) {
 
 std::string to_string(const LogcatEntry& logcat_entry) {
     char logcat_style_time_as_str[32] = {0};
-    struct tm tm;
-    strftime(logcat_style_time_as_str, 31 * sizeof(char), "%Y-%m-%d %H:%M:%S", localtime_r(&logcat_entry.time, &tm));
+    strftime(logcat_style_time_as_str, 31 * sizeof(char), "%Y-%m-%d %H:%M:%S", &logcat_entry.time);
 
     return std::string(logcat_style_time_as_str)
         + ' ' + leftpad(logcat_entry.user.value_or("     "), 5)
@@ -138,10 +137,11 @@ std::optional<LogcatEntry> try_parse_logcat_entry(char* buf, size_t length, Buff
     if (matches[2].rm_so > -1 && matches[2].rm_eo > -1) {
         user = std::string(&buf[matches[2].rm_so], static_cast<size_t>(matches[2].rm_eo - matches[2].rm_so));
     }
+
     // if pcre2 gives us negative offsets then i'll die
     LogcatEntry logcat_entry = {
         .buffer = buffer,
-        .time = to_long(&buf[matches[1].rm_so], &buf[matches[1].rm_eo]),
+        // time to be set at the end
         .user = std::move(user),
         .pid = to_unsigned_long_long(&buf[matches[3].rm_so], &buf[matches[3].rm_eo]),
         .tid = to_unsigned_long_long(&buf[matches[4].rm_so], &buf[matches[4].rm_eo]),
@@ -149,6 +149,9 @@ std::optional<LogcatEntry> try_parse_logcat_entry(char* buf, size_t length, Buff
         .tag = std::string(&buf[matches[6].rm_so], static_cast<size_t>(matches[6].rm_eo - matches[6].rm_so)),
         .message = std::string(&buf[matches[7].rm_so], static_cast<size_t>(matches[7].rm_eo - matches[7].rm_so)),
     };
+
+    time_t time = to_long(&buf[matches[1].rm_so], &buf[matches[1].rm_eo]);
+    localtime_r(&time, &logcat_entry.time);
     return std::move(logcat_entry);
 }
 

logcat_entry.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <ctime>
 #include <string>
 #include <optional>
 #include <nlohmann/json.hpp>
@@ -27,7 +28,7 @@ enum class Priority {
 
 struct LogcatEntry {
     Buffer buffer;
-    time_t time;
+    struct tm time;
     std::optional<std::string> user;
     size_t pid;
     size_t tid;

windows/debug.cpp

@@ -52,27 +52,33 @@ void debug_window(LogcatThread& logcat_thread, LogcatEntries& logcat_entries) {
 
     ImGui::Separator();
     if (ImGui::Button("Add test entry (w/ user)")) {
-        logcat_entries.push_back({
+        LogcatEntry entry = {
             .buffer = Buffer::Main,
-            .time = time(nullptr),
+            // time to be set later
             .user = "blankie",
             .pid = 69,
             .tid = 420,
             .priority = Priority::Error,
             .tag = "blanket, inc.",
             .message = "Failed to make blanket",
-        });
+        };
+        time_t entry_time = time(nullptr);
+        localtime_r(&entry_time, &entry.time);
+        logcat_entries.push_back(std::move(entry));
     }
     if (ImGui::Button("Add test entry (w/o user)")) {
-        logcat_entries.push_back({
+        LogcatEntry entry = {
             .buffer = Buffer::Crash,
-            .time = time(nullptr),
+            // time to be set later
             .pid = 420,
             .tid = 69,
             .priority = Priority::Fatal,
             .tag = "blanket, inc.",
             .message = "Failed to invent blankets",
-        });
+        };
+        time_t entry_time = time(nullptr);
+        localtime_r(&entry_time, &entry.time);
+        logcat_entries.push_back(std::move(entry));
     }
 
     ImGui::End();

windows/logs.cpp

@@ -6,9 +6,8 @@
 #include "logs.h"
 
 static inline void render_table_item_context_menu(const LogEntry& log_entry) {
-    struct tm tm;
     char time_as_str[128] = {0};
-    strftime(time_as_str, 127 * sizeof(char), "%c", localtime_r(&log_entry.time, &tm));
+    strftime(time_as_str, 127 * sizeof(char), "%c", &log_entry.time);
 
     ImGui::TextDisabled("[%s] %s", time_as_str, log_entry.message.c_str());
     ImGui::Separator();
@@ -32,9 +31,8 @@ static inline void render_table_item(const LogEntry& log_entry, size_t log_entry
 
     ImGui::TableNextRow();
     if (ImGui::TableSetColumnIndex(0)) {
-        struct tm tm;
         char time_as_str[128] = {0};
-        strftime(time_as_str, 127 * sizeof(char), "%c", localtime_r(&log_entry.time, &tm));
+        strftime(time_as_str, 127 * sizeof(char), "%c", &log_entry.time);
 
         ImGui::TextUnformatted(time_as_str);
         table_item_popup();

windows/main.cpp

@@ -19,9 +19,8 @@ static inline void render_table_item_context_menu(const LogcatEntry& logcat_entr
 
     if (ImGui::Selectable("Copy")) ImGui::SetClipboardText(text.c_str());
     if (ImGui::Selectable("Copy Time")) {
-        struct tm tm;
         char time_as_str[128] = {0};
-        strftime(time_as_str, 127 * sizeof(char), "%c", localtime_r(&logcat_entry.time, &tm));
+        strftime(time_as_str, 127 * sizeof(char), "%c", &logcat_entry.time);
         ImGui::SetClipboardText(time_as_str);
     }
     if (ImGui::Selectable("Copy User", false, logcat_entry.user ? 0 : ImGuiSelectableFlags_Disabled)) {
@@ -48,9 +47,8 @@ static inline void render_table_item(const LogcatEntry& logcat_entry, size_t log
 
     ImGui::TableNextRow();
     if (ImGui::TableSetColumnIndex(0)) {
-        struct tm tm;
         char time_as_str[128] = {0};
-        strftime(time_as_str, 127 * sizeof(char), "%c", localtime_r(&logcat_entry.time, &tm));
+        strftime(time_as_str, 127 * sizeof(char), "%c", &logcat_entry.time);
 
         ImGui::TextUnformatted(time_as_str);
         table_item_popup();