You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
62 lines
1.1 KiB
62 lines
1.1 KiB
6 years ago
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <assert.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
|
||
|
|
#ifdef __linux__
|
||
|
|
#include <sys/prctl.h>
|
||
|
|
#include <sys/syscall.h>
|
||
|
|
#include <sched.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
void* read_file(const char* path, size_t* out_len) {
|
||
|
|
FILE* f = fopen(path, "r");
|
||
|
|
if (!f) {
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
fseek(f, 0, SEEK_END);
|
||
|
|
long f_len = ftell(f);
|
||
|
|
rewind(f);
|
||
|
|
|
||
|
|
char* buf = (char*)calloc(f_len, 1);
|
||
|
|
assert(buf);
|
||
|
|
|
||
|
|
size_t num_read = fread(buf, f_len, 1, f);
|
||
|
|
fclose(f);
|
||
|
|
|
||
|
|
if (num_read != 1) {
|
||
|
|
free(buf);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (out_len) {
|
||
|
|
*out_len = f_len;
|
||
|
|
}
|
||
|
|
|
||
|
|
return buf;
|
||
|
|
}
|
||
|
|
|
||
|
|
void set_thread_name(const char* name) {
|
||
|
|
#ifdef __linux__
|
||
|
|
// pthread_setname_np is dumb (fails instead of truncates)
|
||
|
|
prctl(PR_SET_NAME, (unsigned long)name, 0, 0, 0);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
int set_realtime_priority(int level) {
|
||
|
|
#ifdef __linux__
|
||
|
|
|
||
|
|
long tid = syscall(SYS_gettid);
|
||
|
|
|
||
|
|
// should match python using chrt
|
||
|
|
struct sched_param sa;
|
||
|
|
memset(&sa, 0, sizeof(sa));
|
||
|
|
sa.sched_priority = level;
|
||
|
|
return sched_setscheduler(tid, SCHED_FIFO, &sa);
|
||
|
|
#else
|
||
|
|
return -1;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|