From 209c48a90a9ea49ea696efbbd8081fb5392cd3f1 Mon Sep 17 00:00:00 2001 From: Samuel Dobson Date: Wed, 5 Aug 2020 23:21:24 +1200 Subject: [PATCH] Merge #15382: util: add RunCommandParseJSON 31cf68a3ad1f0a5537c8419e2912b55fbfb88fa0 [util] add RunCommandParseJSON (Sjors Provoost) c17f54ee535faaedf9033717403e1f775b5f1530 [ci] use boost::process (Sjors Provoost) 32128ba682033560d6eb2e4848a9f77a842016d2 [doc] include Doxygen comments for HAVE_BOOST_PROCESS (Sjors Provoost) 3c84d85f7d218fa27e9343c5cd1a55e519218980 [build] msvc: add boost::process (Sjors Provoost) c47e4bbf0b44f2de1278f9538124ec98ee0815bb [build] make boost-process opt-in (Sjors Provoost) 929cda5470f98d1ef85c05b1cad4e2fb9227e3b0 configure: add ax_boost_process (Sjors Provoost) 8314c23d7b39fc36dde8b40b03b6efbe96f85698 [depends] boost: patch unused variable in boost_process (Sjors Provoost) Pull request description: Prerequisite for external signer support in #16546. Big picture overview in [this gist](https://gist.github.com/Sjors/29d06728c685e6182828c1ce9b74483d). This adds a new dependency [boost process](https://github.com/boostorg/process/tree/boost-1.64.0). This is part of Boost since 1.64 which is part of `depends`. Because the minimum Boost version is 1.47, this functionality is skipped for older versions of Boost. Use `./configure --with-boost-process` to opt in, which checks for the presence of Boost::Process. We add `UniValue runCommandParseJSON(const std::string& strCommand)` to `system.{h,cpp}` which calls an arbitrary command and processes the JSON returned by it. This is currently only called by the test suite. ~For testing purposes this adds a new regtest-only RPC method `runcommand`, as well as `test/mocks/command.py` used by functional tests.~ (this is no longer the case) TODO: - [ ] review boost process in #15440 ACKs for top commit: achow101: ACK 31cf68a3ad1f0a5537c8419e2912b55fbfb88fa0 hebasto: re-ACK 31cf68a3ad1f0a5537c8419e2912b55fbfb88fa0, only rebased (verified with `git range-diff`) and removed an unintentional tab character since the [previous](https://github.com/bitcoin/bitcoin/pull/15382#pullrequestreview-458371035) review. meshcollider: Very light utACK 31cf68a3ad1f0a5537c8419e2912b55fbfb88fa0, although I am not very confident with build stuff. promag: Code review ACK 31cf68a3ad1f0a5537c8419e2912b55fbfb88fa0, don't mind the nit. ryanofsky: Code review ACK 31cf68a3ad1f0a5537c8419e2912b55fbfb88fa0. I left some comments below that could be ignored or followed up later. The current change is clean and comprehensive. Tree-SHA512: c506e747014b263606e1f538ed4624a8ad7bcf4e025cb700c12cc5739964e254dc04a2bbb848996b170e2ccec3fbfa4fe9e2b3976b191222cfb82fc3e6ab182d --- .travis.yml | 2 +- build-aux/m4/ax_boost_process.m4 | 121 ++++++++++++++++++++ ci/test/00_setup_env_arm.sh | 2 +- ci/test/00_setup_env_mac.sh | 2 +- ci/test/00_setup_env_mac_host.sh | 2 +- ci/test/00_setup_env_native_asan.sh | 2 +- ci/test/00_setup_env_native_fuzz.sh | 2 +- ci/test/00_setup_env_native_multiprocess.sh | 2 +- ci/test/00_setup_env_native_nowallet.sh | 2 +- ci/test/00_setup_env_native_qt5.sh | 2 +- ci/test/00_setup_env_native_tsan.sh | 2 +- ci/test/00_setup_env_s390x.sh | 2 +- ci/test/00_setup_env_win64.sh | 2 +- configure.ac | 4 + doc/Doxyfile.in | 2 +- src/Makefile.test.include | 1 + src/test/system_tests.cpp | 95 +++++++++++++++ src/util/system.cpp | 42 +++++++ src/util/system.h | 12 ++ test/lint/lint-includes.sh | 1 + 20 files changed, 289 insertions(+), 13 deletions(-) create mode 100644 build-aux/m4/ax_boost_process.m4 create mode 100644 src/test/system_tests.cpp diff --git a/.travis.yml b/.travis.yml index ce57ccae19..42f9601ebb 100644 --- a/.travis.yml +++ b/.travis.yml @@ -200,7 +200,7 @@ after_success: QEMU_USER_CMD="" - stage: test - name: 'Win64 [GOAL: deploy] [unit tests, no gui, no functional tests]' + name: 'Win64 [GOAL: deploy] [unit tests, no gui, no boost::process, no functional tests]' env: >- FILE_ENV="./ci/test/00_setup_env_win64.sh" diff --git a/build-aux/m4/ax_boost_process.m4 b/build-aux/m4/ax_boost_process.m4 new file mode 100644 index 0000000000..5d20e67464 --- /dev/null +++ b/build-aux/m4/ax_boost_process.m4 @@ -0,0 +1,121 @@ +# =========================================================================== +# https://www.gnu.org/software/autoconf-archive/ax_boost_process.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_BOOST_PROCESS +# +# DESCRIPTION +# +# Test for Process library from the Boost C++ libraries. The macro +# requires a preceding call to AX_BOOST_BASE. Further documentation is +# available at . +# +# This macro calls: +# +# AC_SUBST(BOOST_PROCESS_LIB) +# +# And sets: +# +# HAVE_BOOST_PROCESS +# +# LICENSE +# +# Copyright (c) 2008 Thomas Porschberg +# Copyright (c) 2008 Michael Tindal +# Copyright (c) 2008 Daniel Casimiro +# +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. + +#serial 2 + +AC_DEFUN([AX_BOOST_PROCESS], +[ + AC_ARG_WITH([boost-process], + AS_HELP_STRING([--with-boost-process@<:@=special-lib@:>@], + [use the Process library from boost - it is possible to specify a certain library for the linker + e.g. --with-boost-process=boost_process-gcc-mt ]), + [ + if test "$withval" = "no"; then + want_boost_process="no" + elif test "$withval" = "yes"; then + want_boost_process="yes" + ax_boost_user_process_lib="" + else + want_boost_process="yes" + ax_boost_user_process_lib="$withval" + fi + ], + [want_boost_process="yes"] + ) + + if test "x$want_boost_process" = "xyes"; then + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([AC_CANONICAL_BUILD]) + CPPFLAGS_SAVED="$CPPFLAGS" + CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS" + export CPPFLAGS + + LDFLAGS_SAVED="$LDFLAGS" + LDFLAGS="$LDFLAGS $BOOST_LDFLAGS" + export LDFLAGS + + AC_CACHE_CHECK(whether the Boost::Process library is available, + ax_cv_boost_process, + [AC_LANG_PUSH([C++]) + CXXFLAGS_SAVE=$CXXFLAGS + CXXFLAGS= + + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[@%:@include ]], + [[boost::process::child* child = new boost::process::child; delete child;]])], + ax_cv_boost_process=yes, ax_cv_boost_process=no) + CXXFLAGS=$CXXFLAGS_SAVE + AC_LANG_POP([C++]) + ]) + if test "x$ax_cv_boost_process" = "xyes"; then + AC_SUBST(BOOST_CPPFLAGS) + + AC_DEFINE(HAVE_BOOST_PROCESS,,[define if the Boost::Process library is available]) + BOOSTLIBDIR=`echo $BOOST_LDFLAGS | sed -e 's/@<:@^\/@:>@*//'` + + LDFLAGS_SAVE=$LDFLAGS + if test "x$ax_boost_user_process_lib" = "x"; then + for libextension in `ls -r $BOOSTLIBDIR/libboost_process* 2>/dev/null | sed 's,.*/lib,,' | sed 's,\..*,,'` ; do + ax_lib=${libextension} + AC_CHECK_LIB($ax_lib, exit, + [BOOST_PROCESS_LIB="-l$ax_lib"; AC_SUBST(BOOST_PROCESS_LIB) link_process="yes"; break], + [link_process="no"]) + done + if test "x$link_process" != "xyes"; then + for libextension in `ls -r $BOOSTLIBDIR/boost_process* 2>/dev/null | sed 's,.*/,,' | sed -e 's,\..*,,'` ; do + ax_lib=${libextension} + AC_CHECK_LIB($ax_lib, exit, + [BOOST_PROCESS_LIB="-l$ax_lib"; AC_SUBST(BOOST_PROCESS_LIB) link_process="yes"; break], + [link_process="no"]) + done + fi + + else + for ax_lib in $ax_boost_user_process_lib boost_process-$ax_boost_user_process_lib; do + AC_CHECK_LIB($ax_lib, exit, + [BOOST_PROCESS_LIB="-l$ax_lib"; AC_SUBST(BOOST_PROCESS_LIB) link_process="yes"; break], + [link_process="no"]) + done + + fi + if test "x$ax_lib" = "x"; then + AC_MSG_ERROR(Could not find a version of the Boost::Process library!) + fi + if test "x$link_process" = "xno"; then + AC_MSG_ERROR(Could not link against $ax_lib !) + fi + fi + + CPPFLAGS="$CPPFLAGS_SAVED" + LDFLAGS="$LDFLAGS_SAVED" + fi +]) diff --git a/ci/test/00_setup_env_arm.sh b/ci/test/00_setup_env_arm.sh index df207bff31..32a3532b87 100755 --- a/ci/test/00_setup_env_arm.sh +++ b/ci/test/00_setup_env_arm.sh @@ -25,4 +25,4 @@ export RUN_INTEGRATION_TESTS=false export GOAL="install" # -Wno-psabi is to disable ABI warnings: "note: parameter passing for argument of type ... changed in GCC 7.1" # This could be removed once the ABI change warning does not show up by default -export BITCOIN_CONFIG="--enable-reduce-exports --enable-suppress-external-warnings --enable-werror CXXFLAGS=-Wno-psabi" +export BITCOIN_CONFIG="--enable-reduce-exports --enable-suppress-external-warnings --enable-werror CXXFLAGS=-Wno-psabi --with-boost-process" diff --git a/ci/test/00_setup_env_mac.sh b/ci/test/00_setup_env_mac.sh index c620499b8f..a460d6e577 100755 --- a/ci/test/00_setup_env_mac.sh +++ b/ci/test/00_setup_env_mac.sh @@ -14,4 +14,4 @@ export XCODE_BUILD_ID=12B45b export RUN_UNIT_TESTS=false export RUN_INTEGRATION_TESTS=false export GOAL="all deploy" -export BITCOIN_CONFIG="--with-gui --enable-reduce-exports --disable-miner --enable-werror" +export BITCOIN_CONFIG="--with-gui --enable-reduce-exports --disable-miner --enable-werror --with-boost-process" diff --git a/ci/test/00_setup_env_mac_host.sh b/ci/test/00_setup_env_mac_host.sh index c10fac0b99..4bdc5dc409 100755 --- a/ci/test/00_setup_env_mac_host.sh +++ b/ci/test/00_setup_env_mac_host.sh @@ -10,7 +10,7 @@ export CONTAINER_NAME=ci_macos export HOST=x86_64-apple-darwin export PIP_PACKAGES="zmq lief" export GOAL="install" -export BITCOIN_CONFIG="--with-gui --enable-reduce-exports --disable-miner --enable-werror" +export BITCOIN_CONFIG="--with-gui --enable-reduce-exports --disable-miner --enable-werror --with-boost-process" export NO_DEPENDS=1 export OSX_SDK="" export CCACHE_SIZE=300M diff --git a/ci/test/00_setup_env_native_asan.sh b/ci/test/00_setup_env_native_asan.sh index 0cb83af514..cd5f9c67df 100644 --- a/ci/test/00_setup_env_native_asan.sh +++ b/ci/test/00_setup_env_native_asan.sh @@ -12,4 +12,4 @@ export TEST_RUNNER_EXTRA="--timeout-factor=4" # Increase timeout because saniti export FUNCTIONAL_TESTS_CONFIG="--exclude wallet_multiwallet.py" # Temporarily suppress ASan heap-use-after-free (see issue #14163) export RUN_BENCH=true export GOAL="install" -export BITCOIN_CONFIG="--enable-zmq --with-incompatible-bdb --with-gui=qt5 CPPFLAGS=-DDEBUG_LOCKORDER --with-sanitizers=address,integer,undefined CC=clang CXX=clang++" +export BITCOIN_CONFIG="--enable-zmq --with-incompatible-bdb --with-gui=qt5 CPPFLAGS=-DDEBUG_LOCKORDER --with-sanitizers=address,integer,undefined CC=clang CXX=clang++ --with-boost-process" diff --git a/ci/test/00_setup_env_native_fuzz.sh b/ci/test/00_setup_env_native_fuzz.sh index 43e1a0d959..d826ad88f7 100755 --- a/ci/test/00_setup_env_native_fuzz.sh +++ b/ci/test/00_setup_env_native_fuzz.sh @@ -16,4 +16,4 @@ export RUN_UNIT_TESTS=false export RUN_INTEGRATION_TESTS=false export RUN_FUZZ_TESTS=true export GOAL="install" -export BITCOIN_CONFIG="--enable-zmq --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address,undefined --enable-suppress-external-warnings CC=clang-15 CXX=clang++-15" +export BITCOIN_CONFIG="--enable-zmq --disable-ccache --enable-fuzz --with-sanitizers=fuzzer,address,undefined --enable-suppress-external-warnings CC=clang-15 CXX=clang++-15 --with-boost-process" diff --git a/ci/test/00_setup_env_native_multiprocess.sh b/ci/test/00_setup_env_native_multiprocess.sh index 48a268c373..74c57081a7 100644 --- a/ci/test/00_setup_env_native_multiprocess.sh +++ b/ci/test/00_setup_env_native_multiprocess.sh @@ -10,5 +10,5 @@ export CONTAINER_NAME=ci_native_multiprocess export PACKAGES="cmake python3" export DEP_OPTS="MULTIPROCESS=1" export GOAL="install" -export BITCOIN_CONFIG="" +export BITCOIN_CONFIG="--with-boost-process" export TEST_RUNNER_ENV="BITCOIND=dash-node" diff --git a/ci/test/00_setup_env_native_nowallet.sh b/ci/test/00_setup_env_native_nowallet.sh index aca3c936c7..1d28e24152 100755 --- a/ci/test/00_setup_env_native_nowallet.sh +++ b/ci/test/00_setup_env_native_nowallet.sh @@ -10,4 +10,4 @@ export CONTAINER_NAME=ci_native_nowallet export PACKAGES="python3-zmq" export DEP_OPTS="NO_WALLET=1" export GOAL="install" -export BITCOIN_CONFIG="--enable-reduce-exports" +export BITCOIN_CONFIG="--enable-reduce-exports --with-boost-process" diff --git a/ci/test/00_setup_env_native_qt5.sh b/ci/test/00_setup_env_native_qt5.sh index d99dda7189..ba1b14e726 100755 --- a/ci/test/00_setup_env_native_qt5.sh +++ b/ci/test/00_setup_env_native_qt5.sh @@ -15,4 +15,4 @@ export RUN_UNIT_TESTS_SEQUENTIAL="true" export RUN_UNIT_TESTS="false" export GOAL="install" export PREVIOUS_RELEASES_TO_DOWNLOAD="v0.15.0.0 v0.16.1.1 v0.17.0.3 v18.2.2 v19.3.0 v20.0.1" -export BITCOIN_CONFIG="--enable-zmq --enable-reduce-exports --disable-fuzz-binary LDFLAGS=-static-libstdc++" +export BITCOIN_CONFIG="--enable-zmq --enable-reduce-exports --disable-fuzz-binary LDFLAGS=-static-libstdc++ --with-boost-process" diff --git a/ci/test/00_setup_env_native_tsan.sh b/ci/test/00_setup_env_native_tsan.sh index 51bab6be25..230406f79e 100755 --- a/ci/test/00_setup_env_native_tsan.sh +++ b/ci/test/00_setup_env_native_tsan.sh @@ -12,7 +12,7 @@ export DEP_OPTS="CC=clang-15 CXX='clang++-15 -stdlib=libc++" export TEST_RUNNER_EXTRA="--extended --exclude feature_pruning,feature_dbcrash,wallet_multiwallet.py" # Temporarily suppress ASan heap-use-after-free (see issue #14163) export TEST_RUNNER_EXTRA="${TEST_RUNNER_EXTRA} --timeout-factor=4" # Increase timeout because sanitizers slow down export GOAL="install" -export BITCOIN_CONFIG="--enable-zmq --with-gui=no --with-sanitizers=thread CC=clang-15 CXX=clang++-15" +export BITCOIN_CONFIG="--enable-zmq --with-gui=no --with-sanitizers=thread CC=clang-15 CXX=clang++-15 --with-boost-process" export CPPFLAGS="-DDEBUG_LOCKORDER -DENABLE_DASH_DEBUG -DARENA_DEBUG" export PYZMQ=true export RUN_SYMBOL_TESTS=false diff --git a/ci/test/00_setup_env_s390x.sh b/ci/test/00_setup_env_s390x.sh index 7ce028f3bd..a46bde95b5 100644 --- a/ci/test/00_setup_env_s390x.sh +++ b/ci/test/00_setup_env_s390x.sh @@ -21,4 +21,4 @@ export CONTAINER_NAME=ci_s390x export RUN_UNIT_TESTS=true export RUN_FUNCTIONAL_TESTS=true export GOAL="install" -export BITCOIN_CONFIG="--enable-reduce-exports --disable-gui-tests" # GUI tests disabled for now, see https://github.com/bitcoin/bitcoin/issues/23730 +export BITCOIN_CONFIG="--enable-reduce-exports --disable-gui-tests --with-boost-process" # GUI tests disabled for now, see https://github.com/bitcoin/bitcoin/issues/23730 diff --git a/ci/test/00_setup_env_win64.sh b/ci/test/00_setup_env_win64.sh index 9014e9a2f1..f3879b406c 100755 --- a/ci/test/00_setup_env_win64.sh +++ b/ci/test/00_setup_env_win64.sh @@ -13,5 +13,5 @@ export DPKG_ADD_ARCH="i386" export RUN_INTEGRATION_TESTS=false export RUN_SECURITY_TESTS="false" export GOAL="deploy" -export BITCOIN_CONFIG="--enable-gui --enable-reduce-exports --disable-miner" +export BITCOIN_CONFIG="--enable-gui --enable-reduce-exports --disable-miner --without-boost-process" export DIRECT_WINE_EXEC_TESTS=true diff --git a/configure.ac b/configure.ac index 8ec97e8591..f24651d656 100644 --- a/configure.ac +++ b/configure.ac @@ -1457,6 +1457,9 @@ if test x$want_boost = xno; then fi AX_BOOST_FILESYSTEM +dnl Opt-in to boost-process +AS_IF([ test x$with_boost_process != x ], [ AX_BOOST_PROCESS ], [ ax_cv_boost_process=no ] ) + if test x$suppress_external_warnings != xno; then dnl Prevent use of std::unary_function, which was removed in C++17, dnl and will generate warnings with newer compilers. @@ -1932,6 +1935,7 @@ esac echo echo "Options used to compile and link:" +echo " boost process = $ax_cv_boost_process" echo " multiprocess = $build_multiprocess" echo " with wallet = $enable_wallet" echo " with gui / qt = $bitcoin_enable_qt" diff --git a/doc/Doxyfile.in b/doc/Doxyfile.in index e1f94347f0..8d54cb41ef 100644 --- a/doc/Doxyfile.in +++ b/doc/Doxyfile.in @@ -2093,7 +2093,7 @@ INCLUDE_FILE_PATTERNS = # recursively expanded use the := operator instead of the = operator. # This tag requires that the tag ENABLE_PREPROCESSING is set to YES. -PREDEFINED = +PREDEFINED = HAVE_BOOST_PROCESS # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this # tag can be used to specify a list of macro names that should be expanded. The diff --git a/src/Makefile.test.include b/src/Makefile.test.include index 77e5127fcc..93353dc8ff 100644 --- a/src/Makefile.test.include +++ b/src/Makefile.test.include @@ -160,6 +160,7 @@ BITCOIN_TESTS =\ test/streams_tests.cpp \ test/subsidy_tests.cpp \ test/sync_tests.cpp \ + test/system_tests.cpp \ test/util_threadnames_tests.cpp \ test/timedata_tests.cpp \ test/torcontrol_tests.cpp \ diff --git a/src/test/system_tests.cpp b/src/test/system_tests.cpp new file mode 100644 index 0000000000..a55145c738 --- /dev/null +++ b/src/test/system_tests.cpp @@ -0,0 +1,95 @@ +// Copyright (c) 2019 The Bitcoin Core developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. +// +#include +#include +#include + +#ifdef HAVE_BOOST_PROCESS +#include +#endif // HAVE_BOOST_PROCESS + +#include + +BOOST_FIXTURE_TEST_SUITE(system_tests, BasicTestingSetup) + +// At least one test is required (in case HAVE_BOOST_PROCESS is not defined). +// Workaround for https://github.com/bitcoin/bitcoin/issues/19128 +BOOST_AUTO_TEST_CASE(dummy) +{ + BOOST_CHECK(true); +} + +#ifdef HAVE_BOOST_PROCESS + +bool checkMessage(const std::runtime_error& ex) +{ + // On Linux & Mac: "No such file or directory" + // On Windows: "The system cannot find the file specified." + const std::string what(ex.what()); + BOOST_CHECK(what.find("file") != std::string::npos); + return true; +} + +bool checkMessageFalse(const std::runtime_error& ex) +{ + BOOST_CHECK_EQUAL(ex.what(), std::string("RunCommandParseJSON error: process(false) returned 1: \n")); + return true; +} + +bool checkMessageStdErr(const std::runtime_error& ex) +{ + const std::string what(ex.what()); + BOOST_CHECK(what.find("RunCommandParseJSON error:") != std::string::npos); + return checkMessage(ex); +} + +BOOST_AUTO_TEST_CASE(run_command) +{ + { + const UniValue result = RunCommandParseJSON(""); + BOOST_CHECK(result.isNull()); + } + { +#ifdef WIN32 + // Windows requires single quotes to prevent escaping double quotes from the JSON... + const UniValue result = RunCommandParseJSON("echo '{\"success\": true}'"); +#else + // ... but Linux and macOS echo a single quote if it's used + const UniValue result = RunCommandParseJSON("echo \"{\"success\": true}\""); +#endif + BOOST_CHECK(result.isObject()); + const UniValue& success = find_value(result, "success"); + BOOST_CHECK(!success.isNull()); + BOOST_CHECK_EQUAL(success.getBool(), true); + } + { + // An invalid command is handled by Boost + BOOST_CHECK_EXCEPTION(RunCommandParseJSON("invalid_command"), boost::process::process_error, checkMessage); // Command failed + } + { + // Return non-zero exit code, no output to stderr + BOOST_CHECK_EXCEPTION(RunCommandParseJSON("false"), std::runtime_error, checkMessageFalse); + } + { + // Return non-zero exit code, with error message for stderr + BOOST_CHECK_EXCEPTION(RunCommandParseJSON("ls nosuchfile"), std::runtime_error, checkMessageStdErr); + } + { + BOOST_REQUIRE_THROW(RunCommandParseJSON("echo \"{\""), std::runtime_error); // Unable to parse JSON + } + // Test std::in, except for Windows +#ifndef WIN32 + { + const UniValue result = RunCommandParseJSON("cat", "{\"success\": true}"); + BOOST_CHECK(result.isObject()); + const UniValue& success = find_value(result, "success"); + BOOST_CHECK(!success.isNull()); + BOOST_CHECK_EQUAL(success.getBool(), true); + } +#endif +} +#endif // HAVE_BOOST_PROCESS + +BOOST_AUTO_TEST_SUITE_END() diff --git a/src/util/system.cpp b/src/util/system.cpp index 55dd227270..027669eda5 100644 --- a/src/util/system.cpp +++ b/src/util/system.cpp @@ -7,6 +7,11 @@ #include #include + +#ifdef HAVE_BOOST_PROCESS +#include +#endif // HAVE_BOOST_PROCESS + #include #include #include @@ -1295,6 +1300,43 @@ void RenameThreadPool(ctpl::thread_pool& tp, const char* baseName) } } +#ifdef HAVE_BOOST_PROCESS +UniValue RunCommandParseJSON(const std::string& str_command, const std::string& str_std_in) +{ + namespace bp = boost::process; + + UniValue result_json; + bp::opstream stdin_stream; + bp::ipstream stdout_stream; + bp::ipstream stderr_stream; + + if (str_command.empty()) return UniValue::VNULL; + + bp::child c( + str_command, + bp::std_out > stdout_stream, + bp::std_err > stderr_stream, + bp::std_in < stdin_stream + ); + if (!str_std_in.empty()) { + stdin_stream << str_std_in << std::endl; + } + stdin_stream.pipe().close(); + + std::string result; + std::string error; + std::getline(stdout_stream, result); + std::getline(stderr_stream, error); + + c.wait(); + const int n_error = c.exit_code(); + if (n_error) throw std::runtime_error(strprintf("RunCommandParseJSON error: process(%s) returned %d: %s\n", str_command, n_error, error)); + if (!result_json.read(result)) throw std::runtime_error("Unable to parse JSON: " + result); + + return result_json; +} +#endif // HAVE_BOOST_PROCESS + void SetupEnvironment() { #ifdef HAVE_MALLOPT_ARENA_MAX diff --git a/src/util/system.h b/src/util/system.h index 482a0cbec3..610c1cff45 100644 --- a/src/util/system.h +++ b/src/util/system.h @@ -52,6 +52,8 @@ extern bool fDisableGovernance; extern int nWalletBackups; extern const std::string gCoinJoinName; +class UniValue; + // Application startup time (used for uptime calculation) int64_t GetStartupTime(); @@ -124,6 +126,16 @@ std::string ShellEscape(const std::string& arg); #if HAVE_SYSTEM void runCommand(const std::string& strCommand); #endif +#ifdef HAVE_BOOST_PROCESS +/** + * Execute a command which returns JSON, and parse the result. + * + * @param str_command The command to execute, including any arguments + * @param str_std_in string to pass to stdin + * @return parsed JSON + */ +UniValue RunCommandParseJSON(const std::string& str_command, const std::string& str_std_in=""); +#endif // HAVE_BOOST_PROCESS /** * Most paths passed as configuration arguments are treated as relative to diff --git a/test/lint/lint-includes.sh b/test/lint/lint-includes.sh index 3a5363007a..4ffe5745b0 100755 --- a/test/lint/lint-includes.sh +++ b/test/lint/lint-includes.sh @@ -60,6 +60,7 @@ EXPECTED_BOOST_INCLUDES=( boost/multi_index_container.hpp boost/optional.hpp boost/pool/pool_alloc.hpp + boost/process.hpp boost/signals2/connection.hpp boost/signals2/optional_last_value.hpp boost/signals2/signal.hpp