与 C 代码互操作时,我无法直接转换结构,我不得不在 Go 中定义一个等效的结构。来自的 C 函数libproc.h
是
int proc_pidinfo(int pid, int flavor, uint64_t arg, void *buffer, int buffersize)
的 C 结构flavor==PROC_PIDTASKINFO
定义proc_taskinfo
在sys/proc_info.h
(包含在中libproc.h
):
struct proc_taskinfo {
uint64_t pti_virtual_size; /* virtual memory size (bytes) */
uint64_t pti_resident_size; /* resident memory size (bytes) */
uint64_t pti_total_user; /* total time */
uint64_t pti_total_system;
uint64_t pti_threads_user; /* existing threads only */
uint64_t pti_threads_system;
int32_t pti_policy; /* default policy for new threads */
int32_t pti_faults; /* number of page faults */
int32_t pti_pageins; /* number of actual pageins */
int32_t pti_cow_faults; /* number of copy-on-write faults */
int32_t pti_messages_sent; /* number of messages sent */
int32_t pti_messages_received; /* number of messages received */
int32_t pti_syscalls_mach; /* number of mach system calls */
int32_t pti_syscalls_unix; /* number of unix system calls */
int32_t pti_csw; /* number of context switches */
int32_t pti_threadnum; /* number of threads in the task */
int32_t pti_numrunning; /* number of running threads */
int32_t pti_priority; /* task priority*/
};
即使 Go 代码确实有效,我也无法C.proc_taskinfo
直接使用。Go 函数是propertiesOf()
:完整的源代码在这里。
如果我引用 C 结构,我会收到与我关于该主题的最新问题could not determine kind of name for C.proc_taskinfo
中报告的类似错误: ,但这次我确定定义是使用#include
.