确定进程信息编程在达尔文/ OSX [英] Determine Process Info Programmatically in Darwin/OSX
问题描述
我有以下成员函数的类:
I have a class with the following member functions:
/// caller pid
virtual pid_t Pid() const = 0;
/// physical memory size in KB
virtual uint64_t Size() const = 0;
/// resident memory for this process
virtual uint64_t Rss() const = 0;
/// cpu used by this process
virtual double PercentCpu() const = 0;
/// memory used by this process
virtual double PercentMemory() const = 0;
/// number of threads in this process
virtual int32_t Lwps() const = 0;
本类的职责是返回有关来电者的过程信息。物理内存的大小可以很容易地通过一个sysctl的电话确定,pid是微不足道,但其余的呼声躲避我,除了在调用ps或顶部的popen和解析输出 - 这是不能接受的。任何帮助将大大AP preciated。
This class' duty is to return process information about caller. Physical memory size can easily determined by a sysctl call, and pid is trivial, but the remaining calls have eluded me, aside from invoking a popen on ps or top and parsing the output - which isn't acceptable. Any help would be greatly appreciated.
要求:
在编译G ++ 4.0
无OBJ-C
OSX 10.5
Requirements:
Compiles on g++ 4.0
No obj-c
OSX 10.5
推荐答案
进程信息来源于 pidinfo
:
cristi:~ diciu$ grep proc_pidinfo /usr/include/libproc.h
int proc_pidinfo(int pid, int flavor, uint64_t arg, void *buffer, int buffersize);
CPU负载来自 host_statistics
:
cristi:~ diciu$ grep -r host_statistics /usr/include/
/usr/include/mach/host_info.h:/* host_statistics() */
/usr/include/mach/mach_host.defs:routine host_statistics(
/usr/include/mach/mach_host.h:/* Routine host_statistics */
/usr/include/mach/mach_host.h:kern_return_t host_statistics
有关详细信息,检查出顶
来源和 lsof的
,他们都是开源的(需要注册成为苹果开发者,但是这是免费的):
For more details, check out sources for top
and lsof
, they are open source (you need to register as an Apple developer but that's free of charge):
<一个href=\"http://www.opensource.apple.com/darwinsource/Current/top-38/libtop.c\">http://www.opensource.apple.com/darwinsource/Current/top-38/libtop.c
后来编辑:所有这些接口特定的版本,所以你写的生产code(libproc.h)时,需要考虑到这一点:
Later edit: All these interfaces are version specific, so you need to take that into account when writing production code (libproc.h):
/*
* This header file contains private interfaces to obtain process information.
* These interfaces are subject to change in future releases.
*/
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