nortega/neocomm
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Merge branch 'master' into demobranch

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Nicolás Ortega Froysa 2017-11-05 16:55:34 +01:00
commit 9f5d828b5f
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4 changed files with 77 additions and 30 deletions
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9
CMakeLists.txt
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@ -18,8 +18,8 @@ cmake_minimum_required(VERSION 3.1)
project(NeoComm)
set(TARGET_NAME "neocomm")
set(TARGET_VERSION_MAJOR 0)
set(TARGET_VERSION_MINOR 1)
set(TARGET_VERSION_MAJOR 1)
set(TARGET_VERSION_MINOR 0)
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE "release")
@ -32,7 +32,7 @@ option(BUILD_SHARED_LIB
find_package(GnuTLS REQUIRED)
find_package(PkgConfig REQUIRED)
pkg_search_module(OPENDHT REQUIRED opendht)
pkg_check_modules(OPENDHT REQUIRED opendht>=1.4.0)
include_directories(
"include/"
@ -43,7 +43,8 @@ set(SRCS
src/error.cpp
src/node.cpp)
set(CMAKE_CXX_FLAGS "-std=c++11 -Wall -Wextra -Wpedantic -Werror -Wfatal-errors -pedantic-errors -fno-elide-constructors")
set(CMAKE_CXX_FLAGS
"-std=c++11 -Wall -Wextra -Wpedantic -Werror -Wfatal-errors -pedantic-errors -fno-elide-constructors")
set(CMAKE_CXX_FLAGS_DEBUG "-g -O0")
set(CMAKE_CXX_FLAGS_RELEASE "-O3")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-g -O3")

38
include/neocomm.h
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@ -26,8 +26,10 @@
#ifdef __cplusplus
extern "C" {
#include <ctime>
#include <cstdlib>
#else
#include <time.h>
#include <stdlib.h>
#endif
/**
@ -47,6 +49,15 @@ struct message {
struct user from; ///< Info on the peer who sent the message.
};
/**
* @brief Status of a sent message.
*/
enum {
NC_PENDING = 1, ///< Status of message is pending.
NC_GOOD = 2, ///< Message was sent properly.
NC_BAD = 3, ///< Message failed to send.
};
/**
* @brief Initialize a local DHT node. If port is 0 then the default port
* number will be used.
@ -119,8 +130,8 @@ void NeoComm_leave_channel(const char *channel_name);
*
* @return A structure of the message. If NULL then there are no new messages.
*
* @notice This command will remove the message from the internal list.
* @notice The message must be freed from memory using NeoComm_free_message.
* @warning This command will remove the message from the internal list.
* @warning The message must be freed from memory using NeoComm_free_message.
*/
struct message *NeoComm_get_next_message(const char *channel_name);
@ -129,7 +140,9 @@ struct message *NeoComm_get_next_message(const char *channel_name);
*
* @param msg The message to free from memory.
*/
void NeoComm_free_message(struct message *msg);
static inline void NeoComm_free_message(struct message *msg) {
free(msg);
}
/**
* @brief Send a message to a channel.
@ -137,10 +150,23 @@ void NeoComm_free_message(struct message *msg);
* @param channel_name Name of the channel to send the message to.
* @param message A message to send to the channel.
*
* @return 1 upon success, 0 upon failure. Use NeoComm_get_last_error for a
* text description of the error.
* @return Upon success it returns the time that the message was sent which
* can be used as a token to see if the message was sent properly using
* NeoComm_check_message, if the function failed then 0 will be returned.
*/
int NeoComm_send_message(const char *channel_name, const char *message);
time_t NeoComm_send_message(const char *channel_name, const char *message);
/**
* @brief Check the status of a sent message.
*
* @param token The token of a message to check its status.
*
* @return The status of the message (NC_GOOD, NC_BAD, or NC_PENDING). If the
* token does not exist then 0 is returned.
*
* @warning Once checked the token becomes invalid.
*/
int NeoComm_check_message(const time_t token);
/**
* @brief Get the last error that occurred in text.

42
src/channel.cpp
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@ -26,6 +26,8 @@ std::map<std::string, struct channel_info> channels;
static std::mt19937_64 rand_dev { dht::crypto::random_device{}() };
static std::uniform_int_distribution<dht::Value::Id> rand_id;
static std::map<time_t, int> sent_messages;
int NeoComm_join_channel(const char *channel_name) {
if(not node.isRunning())
{
@ -54,7 +56,7 @@ int NeoComm_join_channel(const char *channel_name) {
channels[s_chan_name] = {
/*.hash =*/ chan_hash,
/*.token =*/ node.listen<dht::ImMessage>(chan_hash,
[=](dht::ImMessage &&msg) {
[&](dht::ImMessage &&msg) {
channels[s_chan_name].msgs.push_back(msg);
return true;
}),
@ -88,28 +90,46 @@ struct message *NeoComm_get_next_message(const char *channel_name) {
*msg = {
/*.msg =*/ new_msg->msg.c_str(),
/*.sent =*/ new_msg->date,
// TODO: add the rest of these
/*.from =*/ {
/*.nick =*/ "DEFAULT", // TODO: Implement this!!!
/*.hash =*/ new_msg->from.to_c_str()
}
};
return msg;
}
void NeoComm_free_message(struct message *msg) {
free(msg);
time_t NeoComm_send_message(const char *channel_name, const char *message) {
if(not node.isRunning())
{
add_error("NeoComm must be initialized.");
return 0;
}
int NeoComm_send_message(const char *channel_name, const char *message) {
const dht::InfoHash chan_hash = channels[channel_name].hash;
const time_t now = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
const time_t now =
std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
if(channels.find(channel_name) == channels.end())
{
add_error("Not connected to channel");
return 0;
}
node.putSigned(chan_hash, dht::ImMessage(rand_id(rand_dev), message, now), [](bool sent) {
// TODO: Figure out what to do here for failed messages.
sent_messages[now] = NC_PENDING;
node.putSigned(chan_hash,
dht::ImMessage(rand_id(rand_dev), message, now), [&](bool sent) {
sent_messages[now] = sent ? NC_GOOD : NC_BAD;
});
return 1;
return now;
}
// TODO: Devise a way so that the message can be resent.
int NeoComm_check_message(const time_t token) {
if(sent_messages.find(token) == sent_messages.end())
{
add_error("No message found with that token.");
return 0;
}
const int status = sent_messages[token];
sent_messages.erase(token);
return status;
}

12
src/node.cpp
View File

@ -65,9 +65,7 @@ int NeoComm_connect(const char *address, const unsigned short port) {
return 1;
}
// NOTICE: When the new OpenDHT release comes out this code should work.
// Meanwhile just keep it commented out.
/*int NeoComm_import_nodes(const char *node_file) {
int NeoComm_import_nodes(const char *node_file) {
if(not node.isRunning())
{
add_error("NeoComm must be initialized.");
@ -97,12 +95,13 @@ int NeoComm_connect(const char *address, const unsigned short port) {
node.bootstrap(imported_nodes);
}
return 1;
}*/
}
/*int NeoComm_export_nodes(const char *node_file) {
int NeoComm_export_nodes(const char *node_file) {
if(not node.isRunning())
{
add_error("NeoComm must be initialized.");
return 0;
}
std::ofstream export_file(node_file, std::ios::binary);
if(not export_file.is_open())
@ -111,4 +110,5 @@ int NeoComm_connect(const char *address, const unsigned short port) {
return 0;
}
msgpack::pack(export_file, node.exportNodes());
}*/
return 1;
}