embed xexpr-path

5 files changed, 0 insertions, 398 deletions

diff --git a/datastore-leveldb/src/db.cpp b/datastore-leveldb/src/db.cpp
deleted file mode 100644
index 991a82e..0000000
--- a/datastore-leveldb/src/db.cpp
+++ /dev/null
@@ -1,74 +0,0 @@
-#include "db.h"
-
-#include <iomanip>
-#include <iostream>
-#include <mutex>
-#include <unordered_map>
-#include <sstream>
-
-static std::unordered_map<std::string,leveldb::DB*> dbs;
-static std::mutex getDBmutex;
-
-static bool sensor_name_is_sane(std::string& name) {
-    for (auto it = name.begin(); it != name.end(); ++it) {
-        if (not ((*it >= '0' and *it <= '9') or
-                 (*it >= 'A' and *it <= 'Z') or
-                 (*it >= 'a' and *it <= 'z') or
-                 (*it == '.'))) {
-            return false;
-        }
-    }
-    return true;
-}
-
-std::string db_make_key(const uint64_t timestamp) {
-    std::stringstream key;
-    key << "ts-";
-    key << std::setfill('0') << std::setw(20) << timestamp;
-    return key.str();
-}
-
-leveldb::DB *db_get(std::string& name) {
-    getDBmutex.lock();
-    if (dbs.find(name) == dbs.end()) {
-        if (not sensor_name_is_sane(name)) {
-            getDBmutex.unlock();
-            return nullptr;
-        }
-        leveldb::DB *db;
-        leveldb::Options options;
-        options.create_if_missing = true;
-        leveldb::Status status = leveldb::DB::Open(options, "data/"+name, &db);
-        if (not status.ok()) {
-            std::cout << status.ToString() << std::endl;
-            getDBmutex.unlock();
-            return nullptr;
-        }
-        dbs[name] = db;
-        getDBmutex.unlock();
-        return db;
-    } else {
-        getDBmutex.unlock();
-        return dbs.at(name);
-    }
-}
-
-
-bool db_insert(std::string& name, const uint64_t timestamp, std::string& value) {
-    leveldb::DB *db = db_get(name);
-    if (db == nullptr) return false;
-
-    auto status = db->Put(leveldb::WriteOptions(), db_make_key(timestamp), value);
-    return status.ok();
-}
-
-void db_close() {
-    auto it = dbs.begin();
-    while (it != dbs.end()) {
-	std::cout << "Close Database: " << (*it).first << std::endl;
-        delete (*it).second;
-        dbs.erase(it++); //post increment!
-    }
-    std::cout << std::endl;
-}
-
diff --git a/datastore-leveldb/src/db.h b/datastore-leveldb/src/db.h
deleted file mode 100644
index 5e31b00..0000000
--- a/datastore-leveldb/src/db.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifndef HAVE_DB_H
-#define HAVE_DB_H
-
-#include <leveldb/db.h>
-
-leveldb::DB *db_get(std::string& name);
-
-bool db_insert(std::string& name, const uint64_t timestamp, std::string& value);
-
-void db_close();
-
-std::string db_make_key(const uint64_t timestamp);
-
-#endif /*HAVE_DB_H*/
diff --git a/datastore-leveldb/src/server.cpp b/datastore-leveldb/src/server.cpp
deleted file mode 100644
index 83f4cdb..0000000
--- a/datastore-leveldb/src/server.cpp
+++ /dev/null
@@ -1,110 +0,0 @@
-#include <csignal>
-#include <forward_list>
-#include <functional>
-#include <chrono>
-#include <thread>
-
-#include <boost/regex.hpp>
-#include <boost/program_options.hpp>
-#include "mongoose.h"
-
-#include "db.h"
-#include "web.h"
-
-typedef void(web_handler_t)(const boost::cmatch&, struct mg_connection *conn);
-
-std::forward_list<std::pair<boost::regex,std::function<web_handler_t>>> web_handler;
-
-struct mg_context *ctx;
-
-int begin_request_handler(struct mg_connection *conn) {
-    boost::cmatch match;
-
-    const struct mg_request_info *request_info = mg_get_request_info(conn);
-
-    std::cout << request_info->request_method << " "
-	      << request_info->uri << std::endl;
-    for (auto item = web_handler.begin(); item != web_handler.end(); ++item) {
-        if (boost::regex_match(request_info->uri, match, (*item).first)) {
-            (*item).second(match, conn);
-            return 1;
-        }
-    }
-    return 0;
-}
-
-struct sigaction old_action;
-
-// Stop the server.
-void sigint_handler(int s) {
-    mg_stop(ctx);
-    db_close();
-    exit(0);
-}
-
-namespace po = boost::program_options;
-
-int main(int argc, char **argv) {
-    // Program options
-    po::options_description desc("Program options");
-    desc.add_options()
-        ("wwwroot", po::value<std::string>()->required(), "Path to www root directory")
-        ("port", po::value<int>()->default_value(8080), "HTTP Port")
-        ("help", "Print help message")
-        ;
-
-    po::variables_map vm;
-    po::store(po::parse_command_line(argc, argv, desc), vm);
-    try {
-        po::notify(vm);
-    } catch(boost::program_options::required_option& e) {
-        std::cerr << "ERROR: " << e.what() << std::endl << std::endl;
-        return 1;
-    }
-    
-    if (vm.count("help")) {
-        std::cout << "Usage: " << argv[0] << std::endl << std::endl;
-        std::cout << desc << std::endl;
-        return 0;
-    }
-    const char *port = strdup(std::to_string(vm["port"].as<int>()).c_str());
-    const char *wwwroot = strdup(vm["wwwroot"].as<std::string>().c_str());
-
-    // Mongoose options
-    const char *options[] = {
-        "num_threads", "8",
-        "listening_ports", port,
-        "document_root", wwwroot,
-        NULL};
-
-    // Mongoose callbacks
-    struct mg_callbacks callbacks;
-    memset(&callbacks, 0, sizeof(callbacks));
-    callbacks.begin_request = begin_request_handler;
-
-    // Routing
-    web_handler.push_front(std::make_pair(
-                web_handle_api_value_R,
-                web_handle_api_value));
-    web_handler.push_front(std::make_pair(
-                web_handle_api_value_timestamp_R,
-                web_handle_api_value_timestamp));
-    web_handler.push_front(std::make_pair(
-                web_handle_api_range_R,
-                web_handle_api_range));
-    web_handler.push_front(std::make_pair(
-                web_handle_api_range_size_R,
-                web_handle_api_range_size));
-    
-    // Signals: handle C-c
-    struct sigaction action;
-    memset(&action, 0, sizeof(action));
-    action.sa_handler = &sigint_handler;
-    sigaction(SIGINT, &action, &old_action);
-
-    // Start the web server.
-    ctx = mg_start(&callbacks, NULL, options);
-    while (1) 
-        std::this_thread::sleep_for(std::chrono::seconds(1));
-    return 1;
-}
diff --git a/datastore-leveldb/src/web.cpp b/datastore-leveldb/src/web.cpp
deleted file mode 100644
index 443e782..0000000
--- a/datastore-leveldb/src/web.cpp
+++ /dev/null
@@ -1,179 +0,0 @@
-#include "web.h"
-#include "db.h"
-#include <algorithm>
-#include <chrono>
-#include <leveldb/comparator.h>
-
-static const leveldb::Comparator *cmp = leveldb::BytewiseComparator();
-
-static inline uint64_t now() {
-    return std::chrono::duration_cast<std::chrono::milliseconds>(
-        std::chrono::high_resolution_clock::now().time_since_epoch()).count();
-}
-
-// uint64_t is long
-inline void strToL(unsigned long int *l, std::string s) {
-	*l = std::stoul(s);
-}
-// uint64_t is long long
-inline void strToL(unsigned long long int *l, std::string s) {
-	*l = std::stoull(s);
-}
-
-static inline void reply_header(struct mg_connection *conn, const bool ok, const char *msg, const char *extra = "") {
-    mg_printf(conn,
-            "HTTP/1.1 %s %s\r\n"
-            "%s",
-            (ok) ? "200" : "500",
-            msg,
-            extra);
-}
-
-static inline bool parse_key(leveldb::Slice &&key, uint64_t *value) {
-    if (key.size() != 20+3) 
-        return false;
-    strToL(value, key.data()+3);
-    return true;
-}
-
-const boost::regex web_handle_api_value_R(
-    "/api/value/([a-zA-Z0-9\\.]+)");
-void web_handle_api_value(const boost::cmatch &match, struct mg_connection *conn) {
-    std::string sensor(match[1].str());
-    uint64_t timestamp = now();
-    char buf[1024];
-    int bytesRead = mg_read(conn, buf, 1024);
-    std::string value(buf, bytesRead);
-
-    if (db_insert(sensor, timestamp, value)) {
-        reply_header(conn, true, "OK Value received", "\r\n");
-    } else {
-        reply_header(conn, false, "Internal Error", "\r\n");
-    }
-}
-
-const boost::regex web_handle_api_value_timestamp_R(
-    "/api/value/([a-zA-Z0-9\\.]+)/([0-9]+)");
-void web_handle_api_value_timestamp(const boost::cmatch &match, struct mg_connection *conn) {
-    std::string sensor(match[1].str());
-    uint64_t timestamp; strToL(&timestamp, match[2].str());
-    char buf[1024];
-    int bytesRead = mg_read(conn, buf, 1024);
-    std::string value(buf, bytesRead);
-
-    if (db_insert(sensor, timestamp, value)) {
-        reply_header(conn, true, "OK Value received", "\r\n");
-    } else {
-        reply_header(conn, false, "Internal Error", "\r\n");
-    }
-}
-
-static inline void print_json_tuple(struct mg_connection *conn,
-        std::ostringstream &outbuf,
-        leveldb::Slice &&key,
-        leveldb::Slice &&value) {
-
-    size_t key_size =  key.size();
-    if (key_size != 20+3) {
-        std::cerr << "invalid key" << std::endl;
-        return;
-    }
-
-    unsigned int offset = 3; // "ts-"
-    // skip zeros in timestamp
-    while (offset < key_size-1 and *(key.data()+offset) == '0')
-        offset++;
-
-    outbuf << '[';
-    outbuf.write(key.data()+offset, key_size-offset);
-    outbuf << ',';
-    outbuf.write(value.data(), value.size());
-    outbuf << ']';
-
-    mg_write(conn, outbuf.str().c_str(), outbuf.tellp());
-}
-
-
-const boost::regex web_handle_api_range_R(
-    "/api/range/([a-zA-Z0-9\\.]+)/([0-9]+)/([0-9]+)");
-void web_handle_api_range(const boost::cmatch &match, struct mg_connection *conn) {
-    std::string sensor(match[1].str());
-    uint64_t start; strToL(&start, match[2].str());
-    uint64_t end; strToL(&end, match[3].str());
-    std::string key_start(std::move(db_make_key(start)));
-    std::string key_end(std::move(db_make_key(end)));
-
-    leveldb::DB *db = db_get(sensor);
-    if (db == nullptr) {
-        reply_header(conn, false, "Internal Error", "\r\n");
-        return;
-    }
-
-    reply_header(conn, true, "OK", "Content-Type: application/json\r\n\r\n");
-
-    std::ostringstream out;
-    out << "{\"sensor\":\"" << sensor << "\", "
-        << "\"error\":null, "
-        << "\"data\":[";
-    mg_write(conn, out.str().c_str(), out.str().size());
-
-    leveldb::Iterator* it = db->NewIterator(leveldb::ReadOptions());
-    bool first = true;
-    std::ostringstream outbuf;
-    for (it->Seek(key_start); 
-            it->Valid() && cmp->Compare(it->key(), key_end) < 0;
-            it->Next()) {
-        if (first) first = false;
-        else outbuf << ",";
-        print_json_tuple(conn, outbuf, it->key(), it->value());
-        outbuf.seekp(0);
-    }
-    mg_printf(conn, "]}\r\n");
-    delete it;
-}
-
-const boost::regex web_handle_api_range_size_R(
-    "/api/range/([a-zA-Z0-9\\.]+)/([0-9]+)/([0-9]+)/([0-9]+)");
-void web_handle_api_range_size(const boost::cmatch &match, struct mg_connection *conn) {
-    std::string sensor(match[1].str());
-    uint64_t start; strToL(&start, match[2].str());
-    uint64_t end; strToL(&end, match[3].str());
-    uint64_t size; strToL(&size, match[4].str());
-
-    leveldb::DB *db = db_get(sensor);
-    if (db == nullptr) {
-        reply_header(conn, false, "Internal Error", "\r\n");
-        return;
-    }
-
-    reply_header(conn, true, "OK", "Content-Type: application/json\r\n\r\n");
-
-    uint64_t step = std::max((uint64_t)1, (end-start) / size);
-
-    std::ostringstream out;
-    out << "{\"sensor\":\"" << sensor << "\", "
-        << "\"error\":null, "
-        << "\"size\":" << size << ", "
-        << "\"step\":" << step << ", "
-        << "\"data\":[";
-    mg_write(conn, out.str().c_str(), out.str().size());
-
-    bool first = true;
-    uint64_t actual_size = 0;
-    std::ostringstream outbuf;
-    leveldb::Iterator* it = db->NewIterator(leveldb::ReadOptions());
-    for (uint64_t key = start; key < end; key += step) {
-        it->Seek(db_make_key(key));
-        if (!it->Valid()) continue;
-
-        if (first) first = false;
-        else outbuf << ",";
-
-        print_json_tuple(conn, outbuf, it->key(), it->value());
-        outbuf.seekp(0);
-        actual_size++;
-    }
-    outbuf << "], \"actual_size\":" << actual_size << "}\r\n";
-    mg_write(conn, outbuf.str().c_str(), outbuf.tellp());
-    delete it;
-}
diff --git a/datastore-leveldb/src/web.h b/datastore-leveldb/src/web.h
deleted file mode 100644
index a9d4593..0000000
--- a/datastore-leveldb/src/web.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef HAVE_WEB_H
-#define HAVE_WEB_H
-
-extern "C" {
-#include "mongoose.h"
-}
-#include <boost/regex.hpp>
-
-extern const boost::regex web_handle_api_value_R;
-void web_handle_api_value(const boost::cmatch &match, struct mg_connection *conn);
-
-extern const boost::regex web_handle_api_value_timestamp_R;
-void web_handle_api_value_timestamp(const boost::cmatch &match, struct mg_connection *conn);
-
-extern const boost::regex web_handle_api_range_R;
-void web_handle_api_range(const boost::cmatch &match, struct mg_connection *conn);
-
-extern const boost::regex web_handle_api_range_size_R;
-void web_handle_api_range_size(const boost::cmatch &match, struct mg_connection *conn);
-
-#endif/*HAVE_WEB_H*/