fix crash on windows 64, force sigar_set_pointer use 64bit pointer

[cnstar9988]

fix #141, #138, #136

[aldrato]

Hello @cnstar9988
Can you guide how to rebuild the dll?

[cnstar9988]

I can rebuild sigar 1.6.4, vs2015+Perl 5.8 + JDK 1.8 + ant 1.9.7

1. run into vs2015 x64 command prompt environment.
2. change dir into sigar-1.6.4\bindings\java.
3. run ant.
   sigar-amd64-winnt.dll will be in sigar-1.6.4\bindings\java\sigar-bin\lib

[nddipiazza]

@cnstar9988 what Windows OS version and Windows SDK version are you using?

I did:

Download visual studio community installer
Install Win10SDK_10.0.18362
Install ant 1.9.7 and add to PATH
Download and install http://strawberryperl.com/download/5.8.9/strawberry-perl-5.8.9.5.msi
Run "Developer Command Prompt for VS 2019"

Then Run

git clone https://github.com/cnstar9988/sigar
cd sigar\bindings\java
ant

Result:

C:\sigar\bindings\java>ant
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF8
Buildfile: C:\sigar\bindings\java\build.xml

jni-init:
     [echo] jni.src=win32, jni.jdk.os=win32, 64-bit
    [javac] C:\sigar\bindings\java\hyperic_jni\jni-build.xml:165: warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds
  [libarch] amd64-winnt
     [echo] java.home=C:\Program Files\AdoptOpenJDK\jdk-8.0.275.1-hotspot

sigar-version:
     [echo] SIGAR git revision 9e5dba8

version-file:
     [echo] cp ./src/org/hyperic/sigar/Version.java.in -> C:\sigar\bindings\java\build/./src/org/hyperic/sigar/Version.java
     [copy] Copying 1 file to C:\sigar\bindings\java\build\src\org\hyperic\sigar

version-file:
     [echo] cp ../../src/sigar_version.c.in -> C:\sigar\bindings\java\build/src/sigar_version.c
     [copy] Copying 1 file to C:\sigar\bindings\java\build\src

version-file:
     [echo] cp ../../src/os/darwin/Info.plist.in -> C:\sigar\bindings\java\build/src/Info.plist
     [copy] Copying 1 file to C:\sigar\bindings\java\build\src

version-file:
     [echo] cp ../../src/os/win32/sigar.rc.in -> C:\sigar\bindings\java\build/src/sigar.rc
     [copy] Copying 1 file to C:\sigar\bindings\java\build\src

sigar.rc:
     [exec] Microsoft (R) Windows (R) Resource Compiler Version 10.0.10011.16384
     [exec] Copyright (C) Microsoft Corporation.  All rights reserved.
     [exec]

prepare-src:
     [exec] javasigar_generated.c needs update
     [exec] generating javasigar_generated.c
     [exec] generating javasigar_generated.h
     [exec] generating org/hyperic/sigar/SysInfo.java
     [exec] generating org/hyperic/sigar/FileSystemUsage.java
     [exec] generating org/hyperic/sigar/ProcCred.java
     [exec] generating org/hyperic/sigar/NfsClientV2.java
     [exec] generating org/hyperic/sigar/ProcExe.java
     [exec] generating org/hyperic/sigar/ProcCumulativeDiskIO.java
     [exec] generating org/hyperic/sigar/NetConnection.java
     [exec] generating org/hyperic/sigar/ProcCpu.java
     [exec] skipping org/hyperic/sigar/CpuPerc.java
     [exec] generating org/hyperic/sigar/NetInfo.java
     [exec] generating org/hyperic/sigar/Mem.java
     [exec] generating org/hyperic/sigar/NfsServerV3.java
     [exec] generating org/hyperic/sigar/DirStat.java
     [exec] generating org/hyperic/sigar/ProcTime.java
     [exec] generating org/hyperic/sigar/ProcStat.java
     [exec] generating org/hyperic/sigar/ThreadCpu.java
     [exec] generating org/hyperic/sigar/ProcFd.java
     [exec] generating org/hyperic/sigar/CpuInfo.java
     [exec] generating org/hyperic/sigar/Arp.java
     [exec] generating org/hyperic/sigar/NetRoute.java
     [exec] generating org/hyperic/sigar/FileSystem.java
     [exec] generating org/hyperic/sigar/NetInterfaceStat.java
     [exec] generating org/hyperic/sigar/ProcDiskIO.java
     [exec] generating org/hyperic/sigar/NetInterfaceConfig.java
     [exec] generating org/hyperic/sigar/Uptime.java
     [exec] generating org/hyperic/sigar/DumpPidCache.java
     [exec] generating org/hyperic/sigar/Tcp.java
     [exec] generating org/hyperic/sigar/Cpu.java
     [exec] generating org/hyperic/sigar/Swap.java
     [exec] generating org/hyperic/sigar/ProcCredName.java
     [exec] generating org/hyperic/sigar/NfsClientV3.java
     [exec] generating org/hyperic/sigar/DiskUsage.java
     [exec] generating org/hyperic/sigar/FileAttrs.java
     [exec] generating org/hyperic/sigar/Who.java
     [exec] generating org/hyperic/sigar/DirUsage.java
     [exec] skipping org/hyperic/sigar/NetStat.java
     [exec] generating org/hyperic/sigar/NfsServerV2.java
     [exec] generating org/hyperic/sigar/ProcState.java
     [exec] generating org/hyperic/sigar/ProcMem.java
     [exec] generating org/hyperic/sigar/ResourceLimit.java

jni-compile:

jni-cc:
    [mkdir] Created dir: C:\sigar\bindings\java\build\obj\amd64-winnt\lib
     [echo] jni libname=sigar-amd64-winnt
       [cc] 22 total files to be compiled.
       [cc] eventlog.c
       [cc] C:\sigar\bindings\java\src\jni\win32\eventlog.c(133): error C2198: 'wcstok': too few arguments for call
       [cc] C:\sigar\bindings\java\src\jni\win32\eventlog.c(153): error C2198: 'wcstok': too few arguments for call
       [cc] sigar_fileinfo.c
       [cc] C:\sigar\src\sigar_fileinfo.c(419): warning C4293: '<<': shift count negative or too big, undefined behavior
       [cc] javavmware.c
       [cc] win32_sigar.c
       [cc] C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt\stdio.h(1933): warning C4005: 'snprintf': macro redefinition
       [cc] C:\sigar\src\os\win32\sigar_os.h(28): note: see previous definition of 'snprintf'
       [cc] C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt\stdio.h(1935): fatal error C1189: #error:  Macro definition of snprintf conflicts with Standard Library function declaration
       [cc] sigar_signal.c
       [cc] sigar.c
       [cc] sigar_ptql.c
       [cc] C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt\stdio.h(1933): warning C4005: 'snprintf': macro redefinition
       [cc] C:\sigar\src\os\win32\sigar_os.h(28): note: see previous definition of 'snprintf'
       [cc] C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt\stdio.h(1935): fatal error C1189: #error:  Macro definition of snprintf conflicts with Standard Library function declaration
       [cc] Generating Code...
       [cc] Compiling...
       [cc] nls.cpp
       [cc] Generating Code...
       [cc] Compiling...
       [cc] sigar_cache.c
       [cc] sigar_util.c
       [cc] javasigar.c
       [cc] sigar_getline.c
       [cc] sigar_format.c
       [cc] C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt\stdio.h(1933): warning C4005: 'snprintf': macro redefinition
       [cc] C:\sigar\src\os\win32\sigar_os.h(28): note: see previous definition of 'snprintf'
       [cc] C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt\stdio.h(1935): fatal error C1189: #error:  Macro definition of snprintf conflicts with Standard Library function declaration
       [cc] peb.c
       [cc] C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt\stdio.h(1933): warning C4005: 'snprintf': macro redefinition
       [cc] C:\sigar\src\os\win32\sigar_os.h(28): note: see previous definition of 'snprintf'
       [cc] C:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt\stdio.h(1935): fatal error C1189: #error:  Macro definition of snprintf conflicts with Standard Library function declaration
       [cc] sigar_version.c
       [cc] pdh.c
       [cc] Generating Code...
       [cc] Compiling...
       [cc] service.cpp
       [cc] registrykey.cpp
       [cc] Generating Code...
       [cc] Compiling...
       [cc] util.c
       [cc] vmcontrol_wrapper.c
       [cc] Generating Code...
       [cc] Compiling...
       [cc] metabase.cpp
       [cc] wmi.cpp
       [cc] Generating Code...

BUILD FAILED
C:\sigar\bindings\java\hyperic_jni\jni-build.xml:224: The following error occurred while executing this line:
C:\sigar\bindings\java\hyperic_jni\jni-build.xml:270: cl failed with return code 2

i'm probably using too new of stuff.

[cnstar9988]

I use VS2010, both test ok.

when buid sigar-amd64-winnt dll, I use "Visual Studio x64 Win64 Command Prompt (2010)"
it works ok.

[cnstar9988]

you can build sigar with vs2010.
or modify some code in eventlog.c because wcstok changed (just for build OK, win32 event log call faild in win32_set_pointer)

WCHAR *rowstate;
ptr = wcstok(msgdll, FILESEP, &rowstate);

https://docs.microsoft.com/en-us/cpp/porting/visual-cpp-change-history-2003-2015?view=msvc-160