diff options
| -rw-r--r-- | procps/top.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/procps/top.c b/procps/top.c index 17addd0..f2e798b 100644 --- a/procps/top.c +++ b/procps/top.c @@ -130,9 +130,9 @@ static unsigned long Hertz; * */ -static int file_to_buf(char *buf, int bufsize, char *filename, int *d) +#define file_to_buf_bufsize 80 +static inline int file_to_buf(char *buf, const char *filename, int fd) { - int fd = *d; int sz; if (fd == -1) { @@ -142,13 +142,12 @@ static int file_to_buf(char *buf, int bufsize, char *filename, int *d) } else { lseek(fd, 0L, SEEK_SET); } - sz = read(fd, buf, bufsize - 1); + sz = read(fd, buf, file_to_buf_bufsize - 1); if (sz < 0) { bb_perror_msg_and_die("%s", filename); } buf[sz] = '\0'; - *d = fd; - return sz; + return fd; } static void init_Hertz_value(void) @@ -165,11 +164,11 @@ static void init_Hertz_value(void) if(smp_num_cpus<1) smp_num_cpus=1; do { - file_to_buf(buf, sizeof(buf), "uptime", &uptime_fd); + uptime_fd = file_to_buf(buf, "uptime", uptime_fd); up_1 = strtod(buf, 0); - file_to_buf(buf, sizeof(buf), "stat", &stat_fd); + stat_fd = file_to_buf(buf, "stat", stat_fd); sscanf(buf, "cpu %lu %lu %lu %lu", &user_j, &nice_j, &sys_j, &other_j); - file_to_buf(buf, sizeof(buf), "uptime", &uptime_fd); + uptime_fd = file_to_buf(buf, "uptime", uptime_fd); up_2 = strtod(buf, 0); } while((long)( (up_2-up_1)*1000.0/up_1 )); /* want under 0.1% error */ close(uptime_fd); |