Forced to define Go struct for casting an unsafe.Pointer() to a C struct -

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interoperating c code, not able directly cast structure , forced define equivalent 1 in go. c function libproc.h is

int proc_pidinfo(int pid, int flavor, uint64_t arg,  void *buffer, int buffersize)

the c structure flavor==proc_pidtaskinfo proc_taskinfo defined in sys/proc_info.h (included 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 */     uint64_t        pti_threads_system;     int32_t         pti_policy;     /* default policy 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 task */     int32_t         pti_numrunning;     /* number of running threads */     int32_t         pti_priority;       /* task priority*/ };

even if go code works, not able use c.proc_taskinfo directly. go function propertiesof(): complete source here.

if reference c structure, got similar error reported in latest question on subject: could not determine kind of name c.proc_taskinfo, time i'm sure definition imported #include.

as per documentation

to access struct, union, or enum type directly, prefix struct_, union_, or enum_, in c.struct_stat.

use c.struct_proc_taskinfo.


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