ref: bff129628abfb6052b74c64dd5e4ea54cc12a1f1
dir: /sys/src/libc/9sys/waitpid.c/
#include <u.h> #include <libc.h> #include <fcall.h> int waitpid(void) { int n; char buf[512], *fld[5]; n = await(buf, sizeof buf-1); if(n <= 0) return -1; buf[n] = '\0'; if(tokenize(buf, fld, nelem(fld)) != nelem(fld)){ werrstr("couldn't parse wait message"); return -1; } return atoi(fld[0]); }