HP-Socket/Linux/README.md
2022-03-03 23:04:51 +08:00

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# HP-Socket for Linux
    The exported API of HP-Socket for Linux is consistent with HP-Socket for Windows, but the implementation code is completely separated. HP-Socket for Linux uses the features of the *C++14* standard, and thus need to be compiled by a compiler which version is *GCC 6.x* and above, and the compilation and execution environments of HP-Socket requires Linux kernel version *2.6.32* and above.
    ***HP-Socket Compilation Requirements***
    *1) Linux kernel version: 2.6.32 and above*
    *2) GCC version: 6.x and above*
    *3) glibc version: 2.14.x and above*
    *4) Dependent libraries: librt, libdl, libpthread*
## Compilation
    Binary library files and sample executable files are available in the HP-Socket distribution. These files were compiled with GCC 6.3.1 under Linux kernel version 2.6.32. Alternatively, you can compile these files using the following two options:
1. ***Windows Remote Compilation:*** HP-Socket distribution package provides visual studio solutions for HP-Socket library and its demo, you can open the corresponding solution to compile them; And you can also compile HP-Socket library or (and) demo by runing *script/ms-build-libs.bat*, *script/ms-build-demos.bat*, *script/ms-build-all.bat*.
2. ***compile.sh*:** You can compile HP-Socket library files yourself using *compile.sh* shell script. But *compile.sh* only compiles library files and will not compiles demo executable files.
```
$ ./compile.sh -h
Usage: compile.sh [...O.P.T.I.O.N.S...]
----------------------+-------------------------------------------------
-d|--with-debug-lib : compile debug libs (default: true)
-m|--mem-allocator : memory allocator (default: mimalloc)
: (options: mimalloc / jemalloc / system)
-u|--udp-enabled : enable UDP components (default: true)
-t|--http-enabled : enable HTTP components (default: true)
-s|--ssl-enabled : enable SSL components (default: true)
-z|--zlib-enabled : enable ZLIB related functions (default: true)
-b|--brotli-enabled : enable BROTLI related functions
: (x86/x64 default: true, arm/arm64 default: false)
-i|--iconv-enabled : enable ICONV related functions (default: true)
-c|--compiler : compiler (default: g++)
-p|--platform : platform: x86 / x64 / arm / arm64
: (default: current machine arch platform)
-e|--clean : clean compilation intermediate temp files
-r|--remove : remove all compilation target files
-v|--version : print hp-socket version
-h|--help : print this usage message
----------------------+-------------------------------------------------
```
## Installation
    Use *install.sh* shell script to install HP-Socket library files and sample executable files to your system.
```
$ sudo ./install.sh -h
Usage: install.sh [...O.P.T.I.O.N.S...]
-----------------+-------------------------------------------------------
-p|--prefix : install/uninstall path (default: /usr/local)
-l|--libdir : lib dir (x86/arm default: 'lib', x64/arm64 default: 'lib64')
-d|--with-demo : install demos or not (default: false)
-u|--uninstall : execute uninstall operation from install path
-v|--version : print hp-socket version
-h|--help : print this usage message
-----------------+-------------------------------------------------------
```
*    Note: The **complle.sh** build script depends on the **script/**, **src/**, **include/**, and **dependent/** directories of the distribution; the **install.sh** install script depends on the **script/**, **include/**, and **lib/** directories of the distribution, if you want to install the sample executable files, it also need to depends on the **demo/Release/** directory.*
## Android NDK
    HP-Socket provides Android NDK build script __*build-android-ndk.sh*__ (__*build-android-ndk.bat*__ on Windows). After installing and configuring the NDK, execute *build-android-ndk.sh* to build it. By default, the build script will build all of ABI's dynamic libraries and static libraries supported by the current NDK, and output the library files to *lib/android-ndk/* directory. If you have special needs, please set the corresponding command line parameters for *build-android-ndk.sh*.
    Build HP-Socket libraries use default settings:
```
$ cd HP-Socket/Linux
$ ./build-android-ndk.sh
```
### ABIs
    By default, the build script generates libraries for all non-deprecated ABIs. You can modify the **APP_ABI** parameter for *build-android-ndk.sh* to generate libraries for specific ABIs.
    (for example: only generate *armeabi-v7a* and *x86* libraries):
```
$ ./build-android-ndk.sh APP_ABI=armeabi-v7a,x86
```
### Features
    By default, all optional features (*UDP, SSL, HTTP, ZLIB, BROTLI, ICONV, MIMALLOC*) were enabled. You can set one or more ***_XXX_DISABLED=true*** parameters for *build-android-ndk.sh* to disable corresponding features.
- *_UDP_DISABLED=true*  (disable UDP)
- *_SSL_DISABLED=true*  (disable SSL)
- *_HTTP_DISABLED=true*  (disable HTTP)
- *_ZLIB_DISABLED=true*  (disable ZLIB)
- *_BROTLI_DISABLED=true*  (disable BROTLI)
- *_ICONV_DISABLED=true*  (disable ICONV)
- *_MIMALLOC_DISABLED=true*  (disable mimalloc memory allocator)
    (for example: disable *SSL* and *ICONV* features):
```
$ ./build-android-ndk.sh _SSL_DISABLED=true _ICONV_DISABLED=true
```
*    Note: If you disable one or more features, you need to define corresponding macros while compiling your application. for example: If you disable the **SSL** and **ICONV** features of HP-Socket library, when you compile the application that uses this library, need to define macro like: __-D_SSL_DISABLED -D_ICONV_DISABLED__.*
### Other Options
    For more details of *build-android-ndk.sh* command, please refer to the [*ndk-build official documentation*](https://developer.android.com/ndk/guides/ndk-build).
    The following example demonstrates: building *armeabi-v7a* and *x86_64* ABI targets; disabling *UDP*, *ZLIB*, and *ICONV* features; library files output to *lib/android-ndk/* directory; obj files output to *lib/Android-ndk/obj/* directory:
```
$ ./build-android-ndk.sh APP_ABI=armeabi-v7a,x86_64 \
_UDP_DISABLED=true \
_ZLIB_DISABLED=true \
_ICONV_DISABLED=true \
NDK_LIBS_OUT=./lib/android-ndk \
NDK_OUT=./lib/android-ndk/obj
```