I need to write a C program in AIX environment which will give me the process name. I can get the pid but not the process name based on the pid. Any specific system calls available in aix environment??
Thanks
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回答1:
getprocs is likely what you want. I created this under AIX 5.x.
I have a little routine that cycles thru all processes and dumps their information.
while ((numproc = getprocs(pinfo, sizeof(struct procsinfo), NULL, 0, &index, MAXPROCS)) > 0 ) { for (i = 0;i < numproc; i++) { /* skip zombie processes */ if (pinfo[i].pi_state==SZOMB) continue; printf("%-6d %-4d %-10d %-16s\n", pinfo[i].pi_pid, pinfo[i].pi_uid, pinfo[i].pi_start, pinfo[i].pi_comm); } } ....回答2:
I realize this is an old question. But, to convert the @CoreyStup answer into a function that more closely addresses the OP, I offer this: (tested on AIX 6.1, using: g++ -o pn pn.cc)
--- pn.cc ---
#include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <string> #include <iostream> #include <procinfo.h> #include <sys/types.h> using namespace std; string getProcName(int pid) { struct procsinfo pinfo[16]; int numproc; int index = 0; while((numproc = getprocs(pinfo, sizeof(struct procsinfo), NULL, 0, &index, 16)) > 0) { for(int i=0; i<numproc; ++i) { // skip zombies if (pinfo[i].pi_state == SZOMB) continue; if (pid == pinfo[i].pi_pid) { return pinfo[i].pi_comm; } } } return ""; } int main(int argc, char** argv) { for(int i=1; i<argc; ++i) { int pid = atoi(argv[i]); string name = getProcName(pid); cout << "pid: " << pid << " == '" << name << "'" << endl; } return 0; }