ps_aix.c

进程列表程序

#include <stdio.h>
#include <procinfo.h>

int getprocs(struct procsinfo *, int, struct fdsinfo *,
             int, pid_t *, int);

pid_t getpidbyname(char *name, pid_t *nextPid)
{
  struct procsinfo  pi;
  pid_t             retval = (pid_t) -1;
  pid_t             pid;

  pid = *nextPid;

  while(1)
  {
    if(getprocs(&pi, sizeof pi, 0, 0, &pid, 1) != 1)
      break;
    
    if(!strcmp(name, pi.pi_comm))
    {
      retval = pi.pi_pid;
      *nextPid = pid;
      break;
    }
  }
  
  return retval;
}

int main(int argc, char *argv[])
{
  int   curArg;
  pid_t pid;
  pid_t nextPid;

  if(argc == 1)
  {
    printf("syntax: %s <program> [program ...]\n",argv[0]);
    exit(1);
  }

  for(curArg = 1; curArg < argc; curArg++)
  {
    printf("Process IDs for %s\n", argv[curArg]);

    for(nextPid = 0, pid = 0; pid != -1; )
      if((pid = getpidbyname(argv[curArg], &nextPid)) != -1)
        printf("\t%d\n", pid);
  }
}