ref: 2b99422480d596ebc26921c87c6bb81a07949f3e
dir: /progs/texec.c.ms/
.P1
.ps -1
.ti -1i
.B
.BX texec.c
.ps +1
.CW
.ps -2
.vs .15i
#include <u.h>
#include <libc.h>
#include <thread.h>
Channel*waitc;
Channel*pidc;
void
cmdproc(void* arg)
{
char* cmd = arg;
procexecl(pidc, cmd, cmd, nil);
sysfatal("procexecl: %r");
}
.ps +2
.P2
.P1
.ps -2
void
threadmain(int, char*[])
{
char ln[512];
int pid, nr;
Waitmsg *m;
write(1, "cmd? ", 5);
nr = read(0, ln, sizeof(ln)-1);
if (nr <= 1)
threadexits(nil);
ln[nr-1] = 0; // drop \en
pidc = chancreate(sizeof(ulong), 1);
waitc= threadwaitchan();
proccreate(cmdproc, ln, 8*1024);
pid = recvul(pidc);
print("started new proc pid=%d\en", pid);
if (pid >= 0){
m = recvp(waitc);
print("terminated pid=%d sts=%s\en", m->pid, m->msg);
free(m);
}
threadexits(nil);
}
.ps +2
.P2