English

github

Changes

Code structure adjustment

Put the header file in the include directory.
The source files are placed in the src directory.
rpcgen was renamed to gen.
Remove the unitest/base directory and put the unit test code directly under the unitest directory.
Support subdirectories under test directory.

fast

The definition of static variables in fast.cc is put into functions, and initialization is safer.
fast::dtoa deprecated the implementation based on LruMap and replaced with the implementation of Milo Yip.
Added fast::stream class to provide basic streaming output operations.

fastream

Inherited from fast::stream class.
Support move constructor.

Added empty status.

fastream fs; // Define an empty fastream object without allocating memory

Support append itself.

fastream fs;
fs << "hello "<< 23;
fs.append(fs);
fs << fs; // <==> fs.append(fs)

fastring

Like fastream, it inherits from fast::stream class, so it also supports streaming output operations.
```
fastring s;
s << "hello "<< 23;
```
The memory structure of fastring and fastream is the same, the two can be converted seamlessly.
```
fastring s;
fastream& fs = *(fastream*)&s
```
Removed reference counting to make fastring's copying behavior similar to std::string, which is not easy to make mistakes.
```
fastring s("hello");
fastring t(s); // Create a new string through memory copy
```
append operation adds inside check to fix logic bug on memory overlaps.
```
fastring s("123");
s.append(s.c_str() + 1); // s -> "12323"
```
Remove the clone(), it is no more needed as the reference count was removed.

str

str::dbg() supports std::unordered_map and std::unordered_set.

flag

Optimize the parsing order of command line parameters and configuration files, first parse the configuration file, and then parse other command line parameters.

# First parse the configuration file xx.conf, then parse other command line parameters
# The values of x and s in the command line will override the values in xx.conf for easy debugging
./xx -x -s="hello" -config=xx.conf

Added built-in bool flag daemon on Linux platform to support background running programs

# add -daemon in the command line parameters
# or set in the configuration file: daemon = true
./xx -daemon

Command line parameters support multiple styles, -x=y can be written as -x y or x=y
```
./xx -i=8 u=88 -s="hello world"
./xx -i 8 -u 88 -s "hello world"
```

Optimize the way to specify the configuration file when the program starts.

./xx config=xx.conf  # Use flag config to display the specified
./xx xx.conf         # The configuration file name ends with .conf or config 
                     # and is the first non-flag parameter, then config= can be omitted
./xx -x xx.conf      # -x is the flag, xx.conf is the first non-flag parameter

When defining the flag, you can specify the level in the comment to control the order of the flag in the configuration file.

// Use #3 at the beginning of the comment to specify level 3
// The supported level is 0-99, the default is 10
// When using --mkconf to automatically generate a configuration file, the flags are sorted by level, file name, and number of lines of code
DEF_bool(b, false, "#3 xxx");

log

Some functions in the signal handler are changed to async-signal-safe version functions, which is safer.

coroutine

Fixed bugs caused by io events registered in epoll(kevent, iocp) that were not removed in time.
Fix the bug that the internal iterator is not updated correctly when Scheduler::add_timer() is called.
Improve the implementation of co::connect, co::accept, etc. to support ipv6.
Added co::max_sched_num() interface to get the maximum number of scheduling threads supported, which is currently the number of CPU cores in the system.
Added co::sched_id() interface to get current scheduling thread id.
Added coroutine_id() interface to get the id of current coroutine.
Refactored Scheduler, the internal logic structure is clearer, and the code is more readable.

Modify the parameters of the co::tcp_socket(), co::udp_socket() interface to address family, deprecating the earlier way of specifying ipv4 and ipv6 with 4 and 6.

sock_t tcp_socket(int af=AF_INET); // @af: address family, AF_INET, AF_INET6, etc.
sock_t udp_socket(int af=AF_INET); // @af: address family, AF_INET, AF_INET6, etc.

Added co::socket() interface, which is consistent with the native API.
Fixed the initialization problem of some static global variables in the hook implementation.
Optimized the internal implementation of co::Event.
Refactored co::Pool:
- Users can specify callback ccb and dcb, which are used to create and destroy an element respectively.
- Users can specify the maximum capacity of the pool (only valid when dcb is set).
- Register cleanup callback with Scheduler in the internal implementation to ensure the cleanup of co::Pool at the end of the scheduling thread.
co::Kakalot was renamed to co::PoolGuard.

json

Internal reference counting, using atomic operations, copying Json objects is safe in multi-thread environment.
Reconstruct the internal memory model of Json, and fix the bugs caused by the internal memory changes.
A simple memory allocator Jalloc is added to improve the performance of Json.
json::parse() supports parsing of array objects.
```
Json v = json::parse("[1, 2, 3]");
```
Added Json::dbg() interface to convert Json object to debug string (longer strings in Json objects may be truncated).
The log library calls Json::dbg() to output Json objects, making the output log more streamlined.

rpc

Simplify, remove some unnecessary configuration items.
Optimize connection management, you can specify the timeout period of idle connections and the maximum number of idle connections through rpc_conn_idle_sec and rpc_max_idle_conn.

hash

Modify the implementation of hash32(), the 32-bit system uses the 32-bit version of murmur 2, the 64-bit system directly takes the lower 32 bits of hash64.

Compile

Removed scons compilation script.
Support xmake compilation.
Support cmake compilation (contributed by izhengfan).
Windows supports compilation with VS project files (automatically generated by xmake).

中文

github

Changes

代码结构调整

头文件放到 include 目录.
源文件放到 src 目录.
rpcgen 更名为 gen.
移除 unitest/base 目录，单元测试代码直接放到 unitest 目录下.
test 目录下支持子目录.

fast

fast.cc 中静态变量的定义放到函数中，初始化更安全.
fast::dtoa 弃用基于 LruMap 的实现，换用 Milo Yip 的实现(miloyip/dtoa-benchmark).
新增 fast::stream 类，提供基本的流式输出操作.

fastream

继承于 fast::stream 类.
支持 move 构造函数.

增加空状态.

fastream fs; // 定义一个空的 fastream 对象，不分配内存

支持 append 自己.

fastream fs;
fs << "hello " << 23;
fs.append(fs);
fs << fs;     // <==> fs.append(fs)

fastring

与 fastream 一样，继承于 fast::stream 类，因此也支持流式输出操作.
```
fastring s;
s << "hello " << 23;
```
fastring 与 fastream 的内存结构相同，二者可以无缝转换.
```
fastring s;
fastream& fs = *(fastream*)&s
```
移除引用计数，使 fastring 的复制行为与 std::string 类似，使用起来不容易出错.
```
fastring s("hello");
fastring t(s);  // 通过内存拷贝创建一个新的字符串
```
append 操作增加 inside 检查，修复内存重叠时的逻辑漏洞.
```
fastring s("123");
s.append(s.c_str() + 1); // s -> "12323"
```
删除 clone() 方法，移除引用计数后，此方法多余.

str

str::dbg() 支持 std::unordered_map 与 std::unordered_set.

flag

优化命令行参数与配置文件的解析顺序，先解析配置文件，再解析其他命令行参数.

# 先解析配置文件 xx.conf，再解析其他命令行参数
# 命令行中 x, s 的值会覆盖 xx.conf 中的值，方便调试
./xx -x -s="hello" -config=xx.conf

Linux 平台增加内置 bool flag daemon，以支持后台运行程序

# 可在命令行参数中带上 -daemon
# 也可在配置文件中设置: daemon = true
./xx -daemon

命令行参数支持多种格式，-x=y 可以写成 -x y 或者 x=y

./xx -i=8 u=88 -s="hello world"
./xx -i 8 -u 88 -s "hello world"

优化程序启动时指定配置文件的方式.

./xx config=xx.conf  # 用 flag config 显示指定
./xx xx.conf         # 配置文...

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English

github

Changes

Code structure adjustment

fast

fastream

fastring

str

flag

log

coroutine

json

rpc

hash

Compile

中文

github

Changes

代码结构调整

fast

fastream

fastring

str

flag

Releases: idealvin/coost

co v1.2.2

co v1.2.1

co 1.1 released

English

Changes

Code structure adjustment

Compile

中文

Changes

代码结构调整