diff options
Diffstat (limited to 'src/cpulimit.c')
| -rw-r--r-- | src/cpulimit.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/src/cpulimit.c b/src/cpulimit.c index e7d5309..002205d 100644 --- a/src/cpulimit.c +++ b/src/cpulimit.c @@ -46,6 +46,10 @@ #include "process_group.h" #include "list.h" +#ifdef __APPLE__ +#include "memrchr.c" +#endif + //some useful macro #ifndef MIN #define MIN(a,b) (((a)<(b))?(a):(b)) @@ -147,6 +151,26 @@ static int get_ncpu() { return ncpu; } +int get_pid_max() +{ +#ifdef __linux__ + //read /proc/sys/kernel/pid_max + static char buffer[1024]; + FILE *fd = fopen("/proc/sys/kernel/pid_max", "r"); + if (fd==NULL) return -1; + if (fgets(buffer, sizeof(buffer), fd)==NULL) { + fclose(fd); + return -1; + } + fclose(fd); + return atoi(buffer); +#elif defined __FreeBSD__ + return 99998; +#elif defined __APPLE__ + return 99998; +#endif +} + void limit_process(pid_t pid, double limit, int include_children) { //slice of the slot in which the process is allowed to run @@ -347,7 +371,7 @@ int main(int argc, char **argv) { } } while(next_option != -1); - if (pid_ok && (pid <= 1 || pid >= 65536)) { + if (pid_ok && (pid <= 1 || pid >= get_pid_max())) { fprintf(stderr,"Error: Invalid value for argument PID\n"); print_usage(stderr, 1); exit(1); |