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author | MarcoFalke <falke.marco@gmail.com> | 2019-09-26 13:31:57 -0400 |
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committer | MarcoFalke <falke.marco@gmail.com> | 2019-11-04 10:42:29 -0500 |
commit | fa1936f57bbf5aebb1f8fc18701441d79219d443 (patch) | |
tree | 82b944a2f5ad061909217366ed6bfe403eab654c | |
parent | fba574c908bb61eff1a0e83c935f3526ba9035f2 (diff) | |
download | bitcoin-fa1936f57bbf5aebb1f8fc18701441d79219d443.tar.xz |
logging: Add member for arbitrary print callbacks
-rw-r--r-- | src/logging.cpp | 7 | ||||
-rw-r--r-- | src/logging.h | 20 |
2 files changed, 26 insertions, 1 deletions
diff --git a/src/logging.cpp b/src/logging.cpp index 60ab486198..b01177f23f 100644 --- a/src/logging.cpp +++ b/src/logging.cpp @@ -67,6 +67,9 @@ bool BCLog::Logger::StartLogging() if (m_print_to_file) FileWriteStr(s, m_fileout); if (m_print_to_console) fwrite(s.data(), 1, s.size(), stdout); + for (const auto& cb : m_print_callbacks) { + cb(s); + } m_msgs_before_open.pop_front(); } @@ -81,6 +84,7 @@ void BCLog::Logger::DisconnectTestLogger() m_buffering = true; if (m_fileout != nullptr) fclose(m_fileout); m_fileout = nullptr; + m_print_callbacks.clear(); } void BCLog::Logger::EnableCategory(BCLog::LogFlags flag) @@ -270,6 +274,9 @@ void BCLog::Logger::LogPrintStr(const std::string& str) fwrite(str_prefixed.data(), 1, str_prefixed.size(), stdout); fflush(stdout); } + for (const auto& cb : m_print_callbacks) { + cb(str_prefixed); + } if (m_print_to_file) { assert(m_fileout != nullptr); diff --git a/src/logging.h b/src/logging.h index e37c0c823b..9ed41c2b98 100644 --- a/src/logging.h +++ b/src/logging.h @@ -77,6 +77,9 @@ namespace BCLog { std::string LogTimestampStr(const std::string& str); + /** Slots that connect to the print signal */ + std::list<std::function<void(const std::string&)>> m_print_callbacks /* GUARDED_BY(m_cs) */ {}; + public: bool m_print_to_console = false; bool m_print_to_file = false; @@ -95,7 +98,22 @@ namespace BCLog { bool Enabled() const { std::lock_guard<std::mutex> scoped_lock(m_cs); - return m_buffering || m_print_to_console || m_print_to_file; + return m_buffering || m_print_to_console || m_print_to_file || !m_print_callbacks.empty(); + } + + /** Connect a slot to the print signal and return the connection */ + std::list<std::function<void(const std::string&)>>::iterator PushBackCallback(std::function<void(const std::string&)> fun) + { + std::lock_guard<std::mutex> scoped_lock(m_cs); + m_print_callbacks.push_back(std::move(fun)); + return --m_print_callbacks.end(); + } + + /** Delete a connection */ + void DeleteCallback(std::list<std::function<void(const std::string&)>>::iterator it) + { + std::lock_guard<std::mutex> scoped_lock(m_cs); + m_print_callbacks.erase(it); } /** Start logging (and flush all buffered messages) */ |