Lines Matching defs:buf
387 ssize_t perf_data__read(struct perf_data *data, void *buf, size_t size)
390 if (fread(buf, size, 1, data->file.fptr) == 1)
394 return readn(data->file.fd, buf, size);
398 void *buf, size_t size)
400 return writen(file->fd, buf, size);
404 void *buf, size_t size)
407 if (fwrite(buf, size, 1, data->file.fptr) == 1)
411 return perf_data_file__write(&data->file, buf, size);
469 int perf_data__make_kcore_dir(struct perf_data *data, char *buf, size_t buf_sz)
476 ret = snprintf(buf, buf_sz, "%s/kcore_dir", data->path);
480 return mkdir(buf, S_IRWXU);