From f5959ab704b2d9c9539bd435da4b9a18d8008700 Mon Sep 17 00:00:00 2001 From: Ian Kelling Date: Fri, 12 Aug 2016 15:46:59 -0700 Subject: [PATCH] lessen indent, use spaces --- evhz.c | 187 ++++++++++++++++++++++++++++++--------------------------- 1 file changed, 100 insertions(+), 87 deletions(-) diff --git a/evhz.c b/evhz.c index 947ab81..e3cc90c 100644 --- a/evhz.c +++ b/evhz.c @@ -1,3 +1,16 @@ +/* Copyright (C) 2016 Ian Kelling */ + +/* Licensed under the Apache License, Version 2.0 (the "License"); */ +/* you may not use this file except in compliance with the License. */ +/* You may obtain a copy of the License at */ + +/* http://www.apache.org/licenses/LICENSE-2.0 */ + +/* Unless required by applicable law or agreed to in writing, software */ +/* distributed under the License is distributed on an "AS IS" BASIS, */ +/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */ +/* See the License for the specific language governing permissions and */ +/* limitations under the License. */ #include #include #include @@ -10,128 +23,128 @@ #define HZ_LIST 64 typedef struct event_s { - int fd; - int hz[HZ_LIST]; - int count; - int avghz; - double prvtime; - char name[128]; + int fd; + int hz[HZ_LIST]; + int count; + int avghz; + double prvtime; + char name[128]; } event_t; int quit = 0; void sigint() { - quit = 1; + quit = 1; } int main(int argc, char *argv[]) { - int optch; - int i; - event_t events[EVENTS]; - int verbose = 1; - - while((optch = getopt(argc, argv, "hn")) != -1) { - switch(optch) { - case('h'): - printf("Usage: %s [-n|-h]\n", argv[0]); - printf("-n nonverbose\n"); - printf("-h help\n"); - return 0; - break; - case('n'): - verbose = 0; - break; - } - } + int optch; + int i; + event_t events[EVENTS]; + int verbose = 1; + + while((optch = getopt(argc, argv, "hn")) != -1) { + switch(optch) { + case('h'): + printf("Usage: %s [-n|-h]\n", argv[0]); + printf("-n nonverbose\n"); + printf("-h help\n"); + return 0; + break; + case('n'): + verbose = 0; + break; + } + } if(geteuid() != 0) { printf("%s must be used as superuser\n", argv[0]); return 1; } - signal(SIGINT, sigint); + signal(SIGINT, sigint); - printf("Press CTRL-C to exit.\n\n"); + printf("Press CTRL-C to exit.\n\n"); - memset(events, 0, sizeof(events)); + memset(events, 0, sizeof(events)); - // List input devices - for(i = 0; i < EVENTS; i++) { - char device[19]; + // List input devices + for(i = 0; i < EVENTS; i++) { + char device[19]; - sprintf(device, "/dev/input/event%i", i); - events[i].fd = open(device, O_RDONLY); + sprintf(device, "/dev/input/event%i", i); + events[i].fd = open(device, O_RDONLY); - if(events[i].fd != -1) { - ioctl(events[i].fd, EVIOCGNAME(sizeof(events[i].name)), events[i].name); - if(verbose) printf("event%i: %s\n", i, events[i].name); - } - } + if(events[i].fd != -1) { + ioctl(events[i].fd, EVIOCGNAME(sizeof(events[i].name)), events[i].name); + if(verbose) printf("event%i: %s\n", i, events[i].name); + } + } - while(!quit) { - fd_set set; + while(!quit) { + fd_set set; - FD_ZERO(&set); + FD_ZERO(&set); - for(i = 0; i < EVENTS; i++) { - if(events[i].fd != -1) { - FD_SET(events[i].fd, &set); - } - } + for(i = 0; i < EVENTS; i++) { + if(events[i].fd != -1) { + FD_SET(events[i].fd, &set); + } + } - if(select(FD_SETSIZE, &set, NULL, NULL, NULL) > 0) { - int bytes; - struct input_event event; + if(select(FD_SETSIZE, &set, NULL, NULL, NULL) > 0) { + int bytes; + struct input_event event; - for(i = 0; i < EVENTS; i++) { - if(events[i].fd == -1 || !FD_ISSET(events[i].fd, &set)) { - continue; - } + for(i = 0; i < EVENTS; i++) { + if(events[i].fd == -1 || !FD_ISSET(events[i].fd, &set)) { + continue; + } - bytes = read(events[i].fd, &event, sizeof(event)); + bytes = read(events[i].fd, &event, sizeof(event)); - if(bytes != sizeof(event)) { - continue; - } + if(bytes != sizeof(event)) { + continue; + } - if(event.type == EV_REL || event.type == EV_ABS) { - double time; - int hz; + if(event.type == EV_REL || event.type == EV_ABS) { + double time; + int hz; - time = event.time.tv_sec * 1000 + event.time.tv_usec / 1000; - hz = 1000 / (time - events[i].prvtime); + time = event.time.tv_sec * 1000 + event.time.tv_usec / 1000; + hz = 1000 / (time - events[i].prvtime); - if(hz > 0) { - int j; + if(hz > 0) { + int j; - events[i].count++; - events[i].hz[events[i].count & (HZ_LIST - 1)] = hz; + events[i].count++; + events[i].hz[events[i].count & (HZ_LIST - 1)] = hz; - events[i].avghz = 0; + events[i].avghz = 0; - for(j = 0; j < HZ_LIST; j++) { - events[i].avghz += events[i].hz[j]; - } + for(j = 0; j < HZ_LIST; j++) { + events[i].avghz += events[i].hz[j]; + } - events[i].avghz /= (events[i].count > HZ_LIST) ? HZ_LIST : events[i].count; + events[i].avghz /= (events[i].count > HZ_LIST) ? HZ_LIST : events[i].count; - if(verbose) printf("%s: Latest % 5iHz, Average % 5iHz\n", events[i].name, hz, events[i].avghz); - } + if(verbose) printf("%s: Latest % 5iHz, Average % 5iHz\n", events[i].name, hz, events[i].avghz); + } - events[i].prvtime = time; - } - } - } - } + events[i].prvtime = time; + } + } + } + } - for(i = 0; i < EVENTS; i++) { - if(events[i].fd != -1) { - if (events[i].avghz != 0) { - printf("\nAverage for %s: % 5iHz\n", events[i].name, events[i].avghz); - } - close(events[i].fd); - } - } + for(i = 0; i < EVENTS; i++) { + if(events[i].fd != -1) { + if (events[i].avghz != 0) { + printf("\nAverage for %s: % 5iHz\n", events[i].name, events[i].avghz); + } + close(events[i].fd); + } + } - return 0; + return 0; } -- 2.30.2