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2016-08-12net: fixup nitsCory Fields
2016-08-04net: Have LookupNumeric return a CService directlyCory Fields
Also fix up a few small issues: - Lookup with "badip:port" now sets the port to 0 - Don't allow assert to have side-effects
2016-07-31net: Split resolving out of CSubNetCory Fields
2016-07-31net: Split resolving out of CServiceCory Fields
2016-07-28httpserver: replace boost threads with stdCory Fields
along with mutex/condvar/bind/etc. httpserver handles its own interruption, so there's no reason not to use std threading. While we're at it, may as well kill the BOOST_FOREACH's as well.
2016-07-28httpserver: explicitly detach worker threadsCory Fields
When using std::thread in place of boost::thread, letting the threads destruct results in a std::terminate. According to the docs, the same thing should be be happening in later boost versions: http://www.boost.org/doc/libs/1_55_0/doc/html/thread/thread_management.html#thread.thread_management.thread.destructor I'm unsure why this hasn't blown up already, but explicitly detaching can't hurt.
2016-07-28httpserver: use a future rather than relying on boost's try_join_forCory Fields
2016-05-05http: use std::move to move HTTPRequest into HTTPWorkItemWladimir J. van der Laan
Thanks to Cory Fields for the idea.
2016-05-05http: Change boost::scoped_ptr to std::unique_ptr in HTTPRequestWladimir J. van der Laan
No need for boost here.
2016-05-05http: Add log message when work queue is fullWladimir J. van der Laan
More useful error reporting.
2016-05-05http: Do a pending c++11 simplificationWladimir J. van der Laan
Use std::unique_ptr for handling work items. This makes the code more RAII and, as mentioned in the comment, is what I planned when I wrote the code in the first place.
2016-04-28auto_ptr → unique_ptrWladimir J. van der Laan
Change the few occurrences of the deprecated `auto_ptr` to c++11 `unique_ptr`. Silences the deprecation warnings. Also add a missing `std::` for consistency.
2016-01-21move rpc* to rpc/Daniel Cousens
2015-11-20http: add Boost 1.49 compatibilityWladimir J. van der Laan
`try_join_for` was introduced in Boost 1.50: http://www.boost.org/doc/libs/1_50_0/doc/html/thread/thread_management.html#thread.thread_management.thread.try_join_for 1.49 has `timed_join`, one can accomplish the same with: http://www.boost.org/doc/libs/1_49_0/doc/html/thread/thread_management.html#thread.thread_management.thread.timed_join However, `timed_join` was deprecated in 1.50. So a conditional is necessary. This solution was tested in #7031.
2015-11-16Avoid a compile error on hosts with libevent too old for EVENT_LOG_WARN.Gregory Maxwell
This uses _EVENT_LOG_WARN instead, which appears to be defined in the old versions of libevent that I have on some systems.
2015-11-13http: speed up shutdownWladimir J. van der Laan
This continues/fixes #6719. `event_base_loopbreak` was not doing what I expected it to, at least in libevent 2.0.21. What I expected was that it sets a timeout, given that no other pending events it would exit in N seconds. However, what it does was delay the event loop exit with 10 seconds, even if nothing is pending. Solve it in a different way: give the event loop thread time to exit out of itself, and if it doesn't, send loopbreak. This speeds up the RPC tests a lot, each exit incurred a 10 second overhead, with this change there should be no shutdown overhead in the common case and up to two seconds if the event loop is blocking. As a bonus this breaks dependency on boost::thread_group, as the HTTP server minds its own offspring.
2015-10-20http: Restrict maximum size of request line + headersWladimir J. van der Laan
Prevent memory exhaustion by sending lots of data. Also add a test to `httpbasics.py`. Closes #6425
2015-09-28http: Force-exit event loop after predefined timeWladimir J. van der Laan
This makes sure that the event loop eventually terminates, even if an event (like an open timeout, or a hanging connection) happens to be holding it up.
2015-09-28http: Wait for worker threads to exitWladimir J. van der Laan
Add a WaitExit() call to http's WorkQueue to make it delete the work queue only when all worker threads stopped. This fixes a problem that was reproducable by pressing Ctrl-C during AppInit2: ``` /usr/include/boost/thread/pthread/condition_variable_fwd.hpp:81: boost::condition_variable::~condition_variable(): Assertion `!ret' failed. /usr/include/boost/thread/pthread/mutex.hpp:108: boost::mutex::~mutex(): Assertion `!posix::pthread_mutex_destroy(&m)' failed. ``` I was assuming that `threadGroup->join_all();` would always have been called when entering the Shutdown(). However this is not the case in bitcoind's AppInit2-non-zero-exit case "was left out intentionally here".
2015-09-28Make HTTP server shutdown more gracefulWladimir J. van der Laan
Shutting down the HTTP server currently breaks off all current requests. This can create a race condition with RPC `stop` command, where the calling process never receives confirmation. This change removes the listening sockets on shutdown so that no new requests can come in, but no longer breaks off requests in progress. Meant to fix #6717.
2015-09-21rpc: Split option -rpctimeout into -rpcservertimeout and -rpcclienttimeoutWladimir J. van der Laan
The two timeouts for the server and client, are essentially different: - In the case of the server it should be a lower value to avoid clients clogging up connection slots - In the case of the client it should be a high value to accomedate slow responses from the server, for example for slow queries or when the lock is contended Split the options into `-rpcservertimeout` and `-rpcclienttimeout` with respective defaults of 30 and 900.
2015-09-21http: Disable libevent debug logging, if not explicitly enabledWladimir J. van der Laan
Add a option "-debug=libevent" to enable libevent debugging for troubleshooting. Libevent logging is redirected to our own log.
2015-09-04[TRIVIAL] Fix typo: exactmath -> exactmatchpaveljanik
... but not yet in trivial tree
2015-09-03Fix race condition between starting HTTP server thread and setting EventBase()Wladimir J. van der Laan
Split StartHTTPServer into InitHTTPServer and StartHTTPServer to give clients a window to register their handlers without race conditions. Thanks @ajweiss for figuring this out.
2015-09-03Document options for new HTTP/RPC server in --helpWladimir J. van der Laan
2015-09-03Implement RPCTimerHandler for Qt RPC consoleWladimir J. van der Laan
Implement RPCTimerHandler for Qt RPC console, so that `walletpassphrase` works with GUI and `-server=0`. Also simplify HTTPEvent-related code by using boost::function directly.
2015-09-03evhttpd implementationWladimir J. van der Laan
- *Replace usage of boost::asio with [libevent2](http://libevent.org/)*. boost::asio is not part of C++11, so unlike other boost there is no forwards-compatibility reason to stick with it. Together with #4738 (convert json_spirit to UniValue), this rids Bitcoin Core of the worst offenders with regard to compile-time slowness. - *Replace spit-and-duct-tape http server with evhttp*. Front-end http handling is handled by libevent, a work queue (with configurable depth and parallelism) is used to handle application requests. - *Wrap HTTP request in C++ class*; this makes the application code mostly HTTP-server-neutral - *Refactor RPC to move all http-specific code to a separate file*. Theoreticaly this can allow building without HTTP server but with another RPC backend, e.g. Qt's debug console (currently not implemented) or future RPC mechanisms people may want to use. - *HTTP dispatch mechanism*; services (e.g., RPC, REST) register which URL paths they want to handle. By using a proven, high-performance asynchronous networking library (also used by Tor) and HTTP server, problems such as #5674, #5655, #344 should be avoided. What works? bitcoind, bitcoin-cli, bitcoin-qt. Unit tests and RPC/REST tests pass. The aim for now is everything but SSL support. Configuration options: - `-rpcthreads`: repurposed as "number of work handler threads". Still defaults to 4. - `-rpcworkqueue`: maximum depth of work queue. When this is reached, new requests will return a 500 Internal Error. - `-rpctimeout`: inactivity time, in seconds, after which to disconnect a client. - `-debug=http`: low-level http activity logging
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