# Java源码的阅读

**Repository Path**: Q123A321Q/reading-java-source-code

## Basic Information

- **Project Name**: Java源码的阅读
- **Description**: 诶嘿~(´,,•ω•,,`)
- **Primary Language**: Unknown
- **License**: GPL-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2023-01-12
- **Last Updated**: 2023-02-06

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README



## 多线程源码

### 线程方法源码
![318](jdk/src/share/native/java/lang/Thread.c)
````c++
static JNINativeMethod methods[] = {
//        Java线程方法
    {"start0",           "()V",        (void *)&JVM_StartThread},
    {"stop0",            "(" OBJ ")V", (void *)&JVM_StopThread},
    {"isAlive",          "()Z",        (void *)&JVM_IsThreadAlive},
    {"suspend0",         "()V",        (void *)&JVM_SuspendThread},
    {"resume0",          "()V",        (void *)&JVM_ResumeThread},
    {"setPriority0",     "(I)V",       (void *)&JVM_SetThreadPriority},
    {"yield",            "()V",        (void *)&JVM_Yield},
    {"sleep",            "(J)V",       (void *)&JVM_Sleep},
    {"currentThread",    "()" THD,     (void *)&JVM_CurrentThread},
    {"countStackFrames", "()I",        (void *)&JVM_CountStackFrames},
    {"interrupt0",       "()V",        (void *)&JVM_Interrupt},
    {"isInterrupted",    "(Z)Z",       (void *)&JVM_IsInterrupted},
    {"holdsLock",        "(" OBJ ")Z", (void *)&JVM_HoldsLock},
    {"getThreads",        "()[" THD,   (void *)&JVM_GetAllThreads},
    {"dumpThreads",      "([" THD ")[[" STE, (void *)&JVM_DumpThreads},
    {"setNativeName",    "(" STR ")V", (void *)&JVM_SetNativeThreadName},
};
````
### 线程状态源码
![318](hotspot/src/share/vm/classfile/javaClasses.hpp)
```c++
// Java Thread Status for JVMTI and M&M use.
// This thread status info is saved in threadStatus field of
// java.lang.Thread java class.
  enum ThreadStatus {
    NEW                      = 0,
    RUNNABLE                 = JVMTI_THREAD_STATE_ALIVE +          // runnable / running
                               JVMTI_THREAD_STATE_RUNNABLE,
    SLEEPING                 = JVMTI_THREAD_STATE_ALIVE +          // Thread.sleep()
                               JVMTI_THREAD_STATE_WAITING +
                               JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
                               JVMTI_THREAD_STATE_SLEEPING,
    IN_OBJECT_WAIT           = JVMTI_THREAD_STATE_ALIVE +          // Object.wait()
                               JVMTI_THREAD_STATE_WAITING +
                               JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
                               JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
    IN_OBJECT_WAIT_TIMED     = JVMTI_THREAD_STATE_ALIVE +          // Object.wait(long)
                               JVMTI_THREAD_STATE_WAITING +
                               JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
                               JVMTI_THREAD_STATE_IN_OBJECT_WAIT,
    PARKED                   = JVMTI_THREAD_STATE_ALIVE +          // LockSupport.park()
                               JVMTI_THREAD_STATE_WAITING +
                               JVMTI_THREAD_STATE_WAITING_INDEFINITELY +
                               JVMTI_THREAD_STATE_PARKED,
    PARKED_TIMED             = JVMTI_THREAD_STATE_ALIVE +          // LockSupport.park(long)
                               JVMTI_THREAD_STATE_WAITING +
                               JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT +
                               JVMTI_THREAD_STATE_PARKED,
    BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE +          // (re-)entering a synchronization block
                               JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER,
    TERMINATED               = JVMTI_THREAD_STATE_TERMINATED
  };
```





### 原文保留
README:
  This file should be located at the top of the OpenJDK Mercurial root
  repository. A full OpenJDK repository set (forest) should also include
  the following 6 nested repositories:
    "jdk", "hotspot", "langtools", "corba", "jaxws"  and "jaxp".

  The root repository can be obtained with something like:
    hg clone http://hg.openjdk.java.net/jdk8/jdk8 openjdk8
  
  You can run the get_source.sh script located in the root repository to get
  the other needed repositories:
    cd openjdk8 && sh ./get_source.sh

  People unfamiliar with Mercurial should read the first few chapters of
  the Mercurial book: http://hgbook.red-bean.com/read/

  See http://openjdk.java.net/ for more information about OpenJDK.

Simple Build Instructions:
  
  0. Get the necessary system software/packages installed on your system, see
     http://hg.openjdk.java.net/jdk8/jdk8/raw-file/tip/README-builds.html

  1. If you don't have a jdk7u7 or newer jdk, download and install it from
     http://java.sun.com/javase/downloads/index.jsp
     Add the /bin directory of this installation to your PATH environment
     variable.

  2. Configure the build:
       bash ./configure
  
  3. Build the OpenJDK:
       make all
     The resulting JDK image should be found in build/*/images/j2sdk-image

where make is GNU make 3.81 or newer, /usr/bin/make on Linux usually
is 3.81 or newer. Note that on Solaris, GNU make is called "gmake".

Complete details are available in the file:
     http://hg.openjdk.java.net/jdk8/jdk8/raw-file/tip/README-builds.html