#ifndef _GNU_SOURCE # define _GNU_SOURCE #endif #include #include #include #include #include #include #include #include "proc.h" #include "die.h" void cpu_affinity(int cpu) { int ret; cpu_set_t cpu_bitmask; CPU_ZERO(&cpu_bitmask); CPU_SET(cpu, &cpu_bitmask); ret = sched_setaffinity(getpid(), sizeof(cpu_bitmask), &cpu_bitmask); if (ret) panic("Can't set this cpu affinity!\n"); } int set_proc_prio(int priority) { int ret = setpriority(PRIO_PROCESS, getpid(), priority); if (ret) panic("Can't set nice val to %i!\n", priority); return 0; } int set_sched_status(int policy, int priority) { int ret, min_prio, max_prio; struct sched_param sp; max_prio = sched_get_priority_max(policy); min_prio = sched_get_priority_min(policy); if (max_prio == -1 || min_prio == -1) printf("Cannot determine scheduler prio limits!\n"); else if (priority < min_prio) priority = min_prio; else if (priority > max_prio) priority = max_prio; memset(&sp, 0, sizeof(sp)); sp.sched_priority = priority; ret = sched_setscheduler(getpid(), policy, &sp); if (ret) { printf("Cannot set scheduler policy!\n"); return -EINVAL; } ret = sched_setparam(getpid(), &sp); if (ret) { printf("Cannot set scheduler prio!\n"); return -EINVAL; } return 0; } ssize_t proc_get_cmdline(unsigned int pid, char *cmdline, size_t len) { ssize_t ret; char path[1024]; snprintf(path, sizeof(path), "/proc/%u/exe", pid); ret = readlink(path, cmdline, len - 1); if (ret < 0) cmdline[0] = '\0'; else cmdline[ret] = '\0'; return ret; } int proc_exec(const char *proc, char *const argv[]) { int status; pid_t pid; pid = fork(); if (pid < 0) { perror("fork"); return -1; } else if (pid == 0) { if (execvp(proc, argv) < 0) fprintf(stderr, "Failed to exec: %s\n", proc); _exit(1); } if (waitpid(pid, &status, 0) < 0) { perror("waitpid"); return -2; } if (!WIFEXITED(status)) return -WEXITSTATUS(status); return 0; } _netlink.h?h=nds-private-remove&id=7fe654dca20892f37226c31bdd2d5b932f8d843a'>commitdiff

path: root/net/netlink/af_netlink.h

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