檢查進程是否在HP NonStop OSS Tandem中運行

Question

我有進程名稱，並希望檢查進程是否在HP NonStop OSS中運行。我創建了一個小型C演示程序，但從Guardian PROCESS_GETINFO_過程中得到錯誤。錯誤編號是3. 下面是我的代碼。你能告訴我什麼是問題。

#include <cextdecs.h(PROCESS_GETINFO_)> 

#include <stdio.h> 
#include <string.h> 
#include <stdlib.h> 

short getProcess(const char*); 

enum ZSYSValues 
{ 
ZSYS_VAL_LEN_PROCESSDESCR  = 33 
} ; 

int main() { 

const char* processName = "myProcess"; 
short status = getProcess(processName); 

printf("status = %d", status); 


return 0; 

} 


short getProcess(const char* processName) { 

    short error = 9; 
    short length = 20; 
    short maxLength = ZSYS_VAL_LEN_PROCESSDESCR; 

    /* error: 0 - found; 4 - not found, otherwise - error*/ 
    error = PROCESS_GETINFO_ (/* *processhandle */ 
,(char*) processName 
,maxLength 
,&length 
,/* *priority */ 
,/* *mom’s-processhandle */ 
,/* *hometerm */ 
,/* maxlen */ 
,/* *hometerm-len */ 
,/* *process-time */ 
,/* *creator-access-id */ 
,/* *process-access-id */ 
,/* *gmom’s-processhandle */ 
,/* *jobid */ 
,/* *program-file */ 
,/* maxlen */ 
,/* *program-len */ 
,/* *swap-file */ 
,/* maxlen */ 
,/* *swap-len */ 
,/* *error-detail */ 
,/* *proc-type */ 
,/* *oss-pid */ 
,/* timeout */); 

    printf("error = %d", error); 

    switch(error) { 
    case 0: return 1; /* found */ 
    case 4: return 0; /* not found */   
    } 
    return -1; /* error */ 
} 

Answer 1

Reference Manual

試試這個版本：

#include <cextdecs.h(PROCESS_GETINFO_)> 
#include <cextdecs(FILENAME_TO_PROCESSHANDLE_)> 

#include <stdio.h> 
#include <string.h> 
#include <stdlib.h> 

short getProcess(const char *filename); 

int main() 
{ 
    short status; 

    /* Change $XYZ to filename desired */ 
    status = getProcess("$XYZ"); 

    printf("status = %d", status); 

    return 0; 
} 

/* Get process by filename */ 
short getProcess(const char *filename) 
{ 
    short error = FEOK; 
    short length; 
    short processHandle[10] = { 0 }; 

    error = FILENAME_TO_PROCESSHANDLE_(filename, strlen(filename), &processHandle); 
    if (error != FEOK) { 
     printf("error = %d", error); 
     return -1; 
    } 

    /* error: 0 - found; 4 - not found, otherwise - error*/ 
    error = PROCESS_GETINFO_(
     processHandle /* Process handle of process we want - Input */ 
     ,  /* proc-fname */ 
     ,  /* proc-fname-maxlen */ 
     ,  /* proc-fname-len */ 
     ,  /* priority */ 
     ,  /* mom’s-processhandle */ 
     ,  /* hometerm */ 
     ,  /* maxlen */ 
     ,  /* hometerm-len */ 
     ,  /* process-time */ 
     ,  /* creator-access-id */ 
     ,  /* process-access-id */ 
     ,  /* gmom’s-processhandle */ 
     ,  /* jobid */ 
     ,  /* program-file */ 
     ,  /* maxlen */ 
     ,  /* program-len */ 
     ,  /* swap-file */ 
     ,  /* maxlen */ 
     ,  /* swap-len */ 
     ,  /* error-detail */ 
     ,  /* proc-type */ 
     ,  /* oss-pid */ 
     ,  /* timeout */ 
    ); 

    printf("error = %d", error); 

    switch (error) { 
     case 0: 
      return 1; /* found */ 
     case 4: 
      return 0; /* not found */ 
    } 
    return -1; /* error */ 
} 

編輯：使用文件名來處理手柄增加了一個例子。我無法找到任何有關通過名稱獲取流程的信息。