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author | Brad Bishop <bradleyb@fuzziesquirrel.com> | 2017-06-15 23:08:09 -0400 |
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committer | Patrick Williams <patrick@stwcx.xyz> | 2017-08-02 20:18:18 +0000 |
commit | f138c5687f67c93475d1f42adcfb5918e9f21fea (patch) | |
tree | 2cdd2fc7d402260349c76f47445693ea0526ed38 /evdevpp/test/evmon.cpp | |
parent | 5d70c251cd74eb50453afe07daf5ac7e844b5d78 (diff) | |
download | phosphor-fan-presence-f138c5687f67c93475d1f42adcfb5918e9f21fea.tar.gz phosphor-fan-presence-f138c5687f67c93475d1f42adcfb5918e9f21fea.zip |
evdevpp: Add evmon utility
Add a sample/test ev event monitor program for evdevpp.
Change-Id: I46dcc47b67b377a1abd79ceef3bc28dbf269d6f2
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Diffstat (limited to 'evdevpp/test/evmon.cpp')
-rw-r--r-- | evdevpp/test/evmon.cpp | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/evdevpp/test/evmon.cpp b/evdevpp/test/evmon.cpp new file mode 100644 index 0000000..26163a7 --- /dev/null +++ b/evdevpp/test/evmon.cpp @@ -0,0 +1,158 @@ +/** + * Copyright © 2017 IBM Corporation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <algorithm> +#include <cassert> +#include <iostream> +#include <iterator> +#include <memory> +#include "argument.hpp" +#include "evdevpp/evdev.hpp" +#include "sdevent/event.hpp" +#include "sdevent/io.hpp" +#include "utility.hpp" + +namespace phosphor +{ +namespace fan +{ +namespace util +{ + +ArgumentParser::ArgumentParser(int argc, char** argv) +{ + auto option = 0; + while (-1 != (option = getopt_long(argc, argv, optionstr, options, NULL))) + { + if ((option == '?') || (option == 'h')) + { + usage(argv); + exit(-1); + } + + auto i = &options[0]; + while ((i->val != option) && (i->val != 0)) + { + ++i; + } + + if (i->val) + { + arguments[i->name] = (i->has_arg ? optarg : true_string); + } + } +} + +const std::string& ArgumentParser::operator[](const std::string& opt) +{ + auto i = arguments.find(opt); + if (i == arguments.end()) + { + return empty_string; + } + else + { + return i->second; + } +} + +void ArgumentParser::usage(char** argv) +{ + std::cerr << "Usage: " << argv[0] << " [options]\n"; + std::cerr << "Options:\n"; + std::cerr << " --path evdev devpath\n"; + std::cerr << " --type evdev type\n"; + std::cerr << " --code evdev code\n"; + std::cerr << std::flush; +} + +const option ArgumentParser::options[] = +{ + { "path", required_argument, NULL, 'p' }, + { "type", required_argument, NULL, 't' }, + { "code", required_argument, NULL, 'c' }, + { 0, 0, 0, 0}, +}; + +const char* ArgumentParser::optionstr = "p:t:c:"; + +const std::string ArgumentParser::true_string = "true"; +const std::string ArgumentParser::empty_string = ""; + +static void exit_with_error(const char* err, char** argv) +{ + ArgumentParser::usage(argv); + std::cerr << "\n"; + std::cerr << "ERROR: " << err << "\n"; + exit(-1); +} + +} // namespace util +} // namespace fan +} // namespace phosphor + +int main(int argc, char* argv[]) +{ + using namespace phosphor::fan::util; + + auto options = std::make_unique<ArgumentParser>(argc, argv); + auto path = (*options)["path"]; + auto stype = (*options)["type"]; + auto scode = (*options)["code"]; + unsigned int type = EV_KEY; + + if (path == ArgumentParser::empty_string) + { + exit_with_error("Path not specified or invalid.", argv); + } + if (stype != ArgumentParser::empty_string) + { + type = stoul(stype); + } + + if (scode == ArgumentParser::empty_string) + { + exit_with_error("Keycode not specified or invalid.", argv); + } + options.reset(); + + auto loop = sdevent::event::newDefault(); + phosphor::fan::util::FileDescriptor fd( + open(path.c_str(), O_RDONLY | O_NONBLOCK)); + auto evdev = evdevpp::evdev::newFromFD(fd()); + sdevent::event::io::IO callback( + loop, + fd(), + [&evdev](auto& s) + { + unsigned int type, code, value; + std::tie(type, code, value) = evdev.next(); + std::cout << + "type: " << libevdev_event_type_get_name(type) << + " code: " << libevdev_event_code_get_name(type, code) << + " value: " << value << "\n"; + }); + + auto value = evdev.fetch(type, stoul(scode)); + std::cout << + "type: " << libevdev_event_type_get_name(type) << + " code: " << libevdev_event_code_get_name(type, stoul(scode)) << + " value: " << value << "\n"; + + loop.loop(); + + return 0; +} |