Oh nice, much simpler. I have a few nitpick comments, but it looks good, and works for me.
Reviewed-By: Dima Ryazanov <d...@gmail.com> Tested-By: Dima Ryazanov <d...@gmail.com> On Thu, Nov 16, 2017 at 1:11 PM, Peter Hutterer <peter.hutte...@who-t.net> wrote: > A lot easier to process data in python than in C. > > Signed-off-by: Peter Hutterer <peter.hutte...@who-t.net> > --- > meson.build | 10 +- > tools/libinput-measure-touchpad-tap | 261 +++++++++++++++++ > tools/libinput-measure-touchpad-tap.c | 509 > ---------------------------------- > 3 files changed, 263 insertions(+), 517 deletions(-) > create mode 100755 tools/libinput-measure-touchpad-tap > delete mode 100644 tools/libinput-measure-touchpad-tap.c > > diff --git a/meson.build b/meson.build > index eefe3d61..4d433989 100644 > --- a/meson.build > +++ b/meson.build > @@ -414,14 +414,8 @@ configure_file(input : 'tools/libinput-measure.man', > install_dir : join_paths(get_option('mandir'), 'man1') > ) > > -libinput_measure_touchpad_tap_sources = [ > 'tools/libinput-measure-touchpad-tap.c' > ] > -executable('libinput-measure-touchpad-tap', > - libinput_measure_touchpad_tap_sources, > - dependencies : deps_tools, > - include_directories : [includes_src, includes_include], > - install_dir : libinput_tool_path, > - install : true, > - ) > +install_data('tools/libinput-measure-touchpad-tap', > + install_dir : libinput_tool_path) > configure_file(input : 'tools/libinput-measure-touchpad-tap.man', > output : 'libinput-measure-touchpad-tap.1', > configuration : man_config, > diff --git a/tools/libinput-measure-touchpad-tap > b/tools/libinput-measure-touchpad-tap > new file mode 100755 > index 00000000..165cd65a > --- /dev/null > +++ b/tools/libinput-measure-touchpad-tap > @@ -0,0 +1,261 @@ > +#!/usr/bin/python3 > +# vim: set expandtab shiftwidth=4: > +# -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */ > +# > +# Copyright © 2017 Red Hat, Inc. > +# > +# Permission is hereby granted, free of charge, to any person obtaining a > +# copy of this software and associated documentation files (the > "Software"), > +# to deal in the Software without restriction, including without > limitation > +# the rights to use, copy, modify, merge, publish, distribute, sublicense, > +# and/or sell copies of the Software, and to permit persons to whom the > +# Software is furnished to do so, subject to the following conditions: > +# > +# The above copyright notice and this permission notice (including the > next > +# paragraph) shall be included in all copies or substantial portions of > the > +# Software. > +# > +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS > OR > +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, > +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL > +# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR > OTHER > +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING > +# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER > +# DEALINGS IN THE SOFTWARE. > +# > + > +import sys > +import argparse > +try: > + import evdev > + import evdev.ecodes > + import textwrap > + import pyudev > +except ModuleNotFoundError as e: > + print('Error: {}'.format(str(e)), file=sys.stderr) > "str" is redundant here. > + print('One or more python modules are missing. Please install those ' > + 'modules and re-run this tool.') > + sys.exit(1) > + > +print_dest = sys.stdout > + > + > +def error(msg, **kwargs): > + print(msg, **kwargs, file=sys.stderr) > + > + > +def msg(msg, **kwargs): > + print(msg, **kwargs, file=print_dest, flush=True) > + > + > +def tv2us(sec, usec): > + return sec * 1000000 + usec > + > + > +def us2ms(us): > + return int(us/1000) > + > + > +class Touch(object): > + def __init__(self, down): > + self._down = down > + self._up = down > + > + @property > + def up(self): > + return us2ms(self._up) > + > + @up.setter > + def up(self, up): > + assert(up > self.down) > Should this be "up >= self.down"? Or is it not possible to have the same timestamp? > + self._up = up > + > + @property > + def down(self): > + return us2ms(self._down) > + > + @property > + def tdelta(self): > + return self.up - self.down > + > + > +class InvalidDeviceError(Exception): > + pass > + > + > +class Device(object): > + def __init__(self, path): > + if path is None: > + self.path = self._find_touch_device() > + else: > + self.path = path > + > + self.device = evdev.InputDevice(self.path) > + # capabilities returns a dict with the EV_* codes as key, > + # each of which is a list of tuples of (code, AbsInfo) > + # > + # Get the abs list first (or empty list if missing), > + # then extract the pressure absinfo from that > + codes = self.device.capabilities(absinfo=True).get( > + evdev.ecodes.EV_KEY, [] > + ) > + > + if evdev.ecodes.BTN_TOUCH not in codes: > + raise InvalidDeviceError("device does not have BTN_TOUCH") > + > + self.touches = [] > + > + def _find_touch_device(self): > + context = pyudev.Context() > + device_node = None > + for device in context.list_devices(subsystem='input'): > + if not device.device_node or \ > Parenthesis are preferred over \ (according to PEP 8) > + not device.device_node.startswith( > '/dev/input/event'): > + continue > + > + # pick the touchpad by default, fallback to the first > + # touchscreen only when there is no touchpad > + if device.get('ID_INPUT_TOUCHPAD', 0): > + device_node = device.device_node > + break > + > + if device.get('ID_INPUT_TOUCHSCREEN', 0) and device_node is > None: > + device_node = device.device_node > + > + if device_node is not None: > + return device_node > + > + print("Unable to find a touch device.", file=sys.stderr) > Use the "error" helper? Or better yet, raise an exception instead of sys.exit. > + sys.exit(1) > + > + def handle_btn_touch(self, event): > + if event.value != 0: > + t = Touch(tv2us(event.sec, event.usec)) > + self.touches.append(t) > + else: > + self.touches[-1].up = tv2us(event.sec, event.usec) > + msg("\rTouch sequences detected: > {}".format(len(self.touches)), > + end='') > + > + def handle_key(self, event): > + tapcodes = [evdev.ecodes.BTN_TOOL_DOUBLETAP, > + evdev.ecodes.BTN_TOOL_TRIPLETAP, > + evdev.ecodes.BTN_TOOL_QUADTAP, > + evdev.ecodes.BTN_TOOL_QUINTTAP] > + if event.code in tapcodes and event.value > 0: > + error("\rThis tool cannot handle multiple fingers, " > + "output will be invalid") > + return > + > + if event.code == evdev.ecodes.BTN_TOUCH: > + self.handle_btn_touch(event) > + > + def handle_syn(self, event): > + if self.touch.dirty: > + self.current_sequence().append(self.touch) > + self.touch = Touch(major=self.touch.major, > + minor=self.touch.minor, > + orientation=self.touch.orientation) > + > + def handle_event(self, event): > + if event.type == evdev.ecodes.EV_KEY: > + self.handle_key(event) > + > + def read_events(self): > + for event in self.device.read_loop(): > + self.handle_event(event) > + > + def print_summary(self): > + deltas = sorted([t.tdelta for t in self.touches]) > Nit: don't need [ and ] here. > + > + dmax = max(deltas) > + dmin = min(deltas) > + > + l = len(deltas) > + > + davg = sum(deltas)/l > + dmedian = deltas[int(l/2)] > + d95pc = deltas[int(l * 0.95)] > + d90pc = deltas[int(l * 0.90)] > + > + print("Time: ") > + print(" Max delta: {}ms".format(int(dmax))) > + print(" Min delta: {}ms".format(int(dmin))) > + print(" Average delta: {}ms".format(int(davg))) > + print(" Median delta: {}ms".format(int(dmedian))) > + print(" 90th percentile: {}ms".format(int(d90pc))) > + print(" 95th percentile: {}ms".format(int(d95pc))) > + > + def print_dat(self): > + print("# libinput-measure-touchpad-tap") > + print(textwrap.dedent('''\ > + # File contents: > + # This file contains multiple prints of the data in > + # different sort order. Row number is index of touch > + # point within each group. Comparing data across groups > + # will result in invalid analysis. > + # Columns (1-indexed): > + # Group 1, sorted by time of occurence > + # 1: touch down time in ms, offset by first event > + # 2: touch up time in ms, offset by first event > + # 3: time delta in ms); > + # Group 2, sorted by touch down-up delta time (ascending) > + # 4: touch down time in ms, offset by first event > + # 5: touch up time in ms, offset by first event > + # 6: time delta in ms > + ''')) > + > + deltas = [t for t in self.touches] > + deltas_sorted = sorted(deltas, key=lambda t: t.tdelta) > + > + offset = deltas[0].down > + > + for t1, t2 in zip(deltas, deltas_sorted): > + print(t1.down - offset, t1.up - offset, t1.tdelta, > + t2.down - offset, t2.up - offset, t2.tdelta) > + > + def print(self, format): > + if not self.touches: > + error("No tap data available") > + return > + > + if format == 'summary': > + self.print_summary() > + elif format == 'dat': > + self.print_dat() > + > + > +def main(args): > + parser = argparse.ArgumentParser( > + description="Measure tap-to-click properties of devices" > + ) > + parser.add_argument('path', metavar='/dev/input/event0', > "/dev/input/event0" should probably be the default value, not the metavar? > + nargs='?', type=str, help='Path to device > (optional)') > + parser.add_argument('--format', metavar='format', > + choices=['summary', 'dat'], > + default='summary', > + help='data format to print ("summary" or "dat")') > + args = parser.parse_args() > + > + if not sys.stdout.isatty(): > + global print_dest > + print_dest = sys.stderr > + > + try: > + device = Device(args.path) > + error("Ready for recording data.\n" > + "Tap the touchpad multiple times with a single finger > only.\n" > + "For useful data we recommend at least 20 taps.\n" > + "Ctrl+C to exit") > + device.read_events() > + except KeyboardInterrupt: > + msg('') > + device.print(args.format) > + except (PermissionError, OSError): > + print("Error: failed to open device") > Might as well print out the exception, too. > + except InvalidDeviceError as e: > + print("Error: {}".format(e)) > + > + > +if __name__ == "__main__": > + main(sys.argv) > diff --git a/tools/libinput-measure-touchpad-tap.c > b/tools/libinput-measure-touchpad-tap.c > deleted file mode 100644 > index 735202c1..00000000 > --- a/tools/libinput-measure-touchpad-tap.c > +++ /dev/null > @@ -1,509 +0,0 @@ > -/* > - * Copyright © 2017 Red Hat, Inc. > - * > - * Permission is hereby granted, free of charge, to any person obtaining a > - * copy of this software and associated documentation files (the > "Software"), > - * to deal in the Software without restriction, including without > limitation > - * the rights to use, copy, modify, merge, publish, distribute, > sublicense, > - * and/or sell copies of the Software, and to permit persons to whom the > - * Software is furnished to do so, subject to the following conditions: > - * > - * The above copyright notice and this permission notice (including the > next > - * paragraph) shall be included in all copies or substantial portions of > the > - * Software. > - * > - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, > EXPRESS OR > - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF > MERCHANTABILITY, > - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT > SHALL > - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR > OTHER > - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING > - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER > - * DEALINGS IN THE SOFTWARE. > - */ > - > -#include "config.h" > - > -#include <errno.h> > -#include <fcntl.h> > -#include <getopt.h> > -#include <poll.h> > -#include <signal.h> > -#include <stdbool.h> > -#include <stdio.h> > -#include <string.h> > -#include <unistd.h> > -#include <sys/signalfd.h> > - > -#include <libudev.h> > -#include <libevdev/libevdev.h> > - > -#include <libinput-util.h> > -#include <libinput-version.h> > - > -#include "shared.h" > - > -static bool print_dat_file; > -/* interactive goes to stdout unless we're redirected, then it goes to > - * stderr */ > -static FILE *pdest; > - > -#define error(...) fprintf(stderr, __VA_ARGS__) > -#define msg(...) fprintf(pdest, __VA_ARGS__) > - > -struct touch { > - uint32_t tdown, tup; /* in ms */ > -}; > - > -struct tap_data { > - struct touch *touches; > - size_t touches_sz; > - unsigned int count; > - > - uint32_t toffset; /* in ms */ > -}; > - > -static inline uint32_t > -touch_tdelta_ms(const struct touch *t) > -{ > - return t->tup - t->tdown; > -} > - > -static inline struct tap_data * > -tap_data_new(void) > -{ > - struct tap_data *tap_data; > - > - tap_data = zalloc(sizeof(struct tap_data)); > - > - return tap_data; > -} > - > -static inline unsigned int > -tap_data_ntouches(struct tap_data *tap_data) > -{ > - return tap_data->count; > -} > - > -static inline void > -tap_data_free(struct tap_data **tap_data) > -{ > - free((*tap_data)->touches); > - free((*tap_data)); > - *tap_data = NULL; > -} > - > -static inline struct touch * > -tap_data_get_current_touch(struct tap_data *tap_data) > -{ > - assert(tap_data->count > 0); > - > - return &tap_data->touches[tap_data->count - 1]; > -} > - > -static inline struct touch * > -tap_data_get_touch(struct tap_data *tap_data, unsigned int idx) > -{ > - assert(idx < tap_data->count); > - > - return &tap_data->touches[idx]; > -} > - > -#define tap_data_for_each(tapdata_, t_) \ > - for (unsigned i_ = 0; i_ < (tapdata_)->count && (t_ = > &(tapdata_)->touches[i_]); i_++) > - > -static inline struct tap_data * > -tap_data_duplicate_sorted(const struct tap_data *src, > - int (*cmp)(const void *a, const void *b)) > -{ > - struct tap_data *dest = tap_data_new(); > - > - assert(src->count > 0); > - > - dest->count = src->count; > - dest->toffset = src->toffset; > - dest->touches_sz = dest->count; > - dest->touches = zalloc(dest->count * sizeof(*dest->touches)); > - > - memcpy(dest->touches, > - src->touches, > - dest->count * sizeof(*dest->touches)); > - > - if (cmp) > - qsort(dest->touches, > - dest->count, > - sizeof(*dest->touches), > - cmp); > - > - return dest; > -} > - > -static inline struct touch* > -tap_data_new_touch(struct tap_data *tap_data) > -{ > - tap_data->count++; > - if (tap_data->touches_sz < tap_data->count) { > - tap_data->touches_sz += 50; > - tap_data->touches = realloc(tap_data->touches, > - tap_data->touches_sz * > sizeof(*tap_data->touches)); > - if (tap_data->touches == NULL) { > - error("Allocation error. Oops\n"); > - abort(); > - } > - memset(&tap_data->touches[tap_data->count - 1], > - 0, > - sizeof(*tap_data->touches)); > - } > - > - return &tap_data->touches[tap_data->count - 1]; > -} > - > -static int > -sort_by_time_delta(const void *ap, const void *bp) > -{ > - const struct touch *a = ap; > - const struct touch *b = bp; > - uint32_t da, db; > - > - da = touch_tdelta_ms(a); > - db = touch_tdelta_ms(b); > - > - return da == db ? 0 : da > db ? 1 : -1; > -} > - > -static inline void > -print_statistics(struct tap_data *tap_data) > -{ > - uint64_t delta_sum = 0; > - uint32_t average; > - uint32_t max = 0, > - min = UINT_MAX; > - struct tap_data *data_sorted_tdelta; > - struct touch *t, > - *median, > - *pc90, > - *pc95; > - > - if (tap_data->count == 0) { > - error("No tap data available.\n"); > - return; > - } > - > - tap_data_for_each(tap_data, t) { > - uint32_t delta = touch_tdelta_ms(t); > - > - delta_sum += delta; > - max = max(delta, max); > - min = min(delta, min); > - } > - > - average = delta_sum/tap_data_ntouches(tap_data); > - > - printf("Time:\n"); > - printf(" Max delta: %dms\n", max); > - printf(" Min delta: %dms\n", min); > - printf(" Average delta: %dms\n", average); > - > - /* Median, 90th, 95th percentile, requires sorting by time delta */ > - data_sorted_tdelta = tap_data_duplicate_sorted(tap_data, > - sort_by_time_delta); > - median = tap_data_get_touch(tap_data, > - tap_data_ntouches(tap_data)/2); > - pc90= tap_data_get_touch(tap_data, > - tap_data_ntouches(tap_data) * 0.9); > - pc95 = tap_data_get_touch(tap_data, > - tap_data_ntouches(tap_data) * 0.95); > - printf(" Median delta: %dms\n", touch_tdelta_ms(median)); > - printf(" 90th percentile: %dms\n", touch_tdelta_ms(pc90)); > - printf(" 95th percentile: %dms\n", touch_tdelta_ms(pc95)); > - > - tap_data_free(&data_sorted_tdelta); > -} > - > -static inline void > -print_dat(struct tap_data *tap_data) > -{ > - unsigned int i; > - struct touch *t; > - struct tap_data *sorted; > - > - printf("# libinput-measure-touchpad-tap (v%s)\n", > LIBINPUT_VERSION); > - printf("# File contents:\n" > - "# This file contains multiple prints of the data in > different\n" > - "# sort order. Row number is index of touch point within > each group.\n" > - "# Comparing data across groups will result in invalid > analysis.\n" > - "# Columns (1-indexed):\n"); > - printf("# Group 1, sorted by time of occurence\n" > - "# 1: touch down time in ms, offset by first event\n" > - "# 2: touch up time in ms, offset by first event\n" > - "# 3: time delta in ms\n"); > - printf("# Group 2, sorted by touch down-up delta time > (ascending)\n" > - "# 4: touch down time in ms, offset by first event\n" > - "# 5: touch up time in ms, offset by first event\n" > - "# 6: time delta in ms\n"); > - > - sorted = tap_data_duplicate_sorted(tap_data, sort_by_time_delta); > - > - for (i = 0; i < tap_data_ntouches(tap_data); i++) { > - t = tap_data_get_touch(tap_data, i); > - printf("%d %d %d ", > - t->tdown, > - t->tup, > - touch_tdelta_ms(t)); > - > - t = tap_data_get_touch(sorted, i); > - printf("%d %d %d ", > - t->tdown, > - t->tup, > - touch_tdelta_ms(t)); > - > - printf("\n"); > - } > - > - tap_data_free(&sorted); > -} > - > -static inline void > -handle_btn_touch(struct tap_data *tap_data, > - struct libevdev *evdev, > - const struct input_event *ev) > -{ > - > - if (ev->value) { > - struct touch *new_touch = tap_data_new_touch(tap_data); > - > - new_touch->tdown = us2ms(tv2us(&ev->time)) - > tap_data->toffset; > - } else { > - struct touch *current = tap_data_get_current_touch(tap > _data); > - > - msg("\rTouch sequences detected: %d", tap_data->count); > - > - current->tup = us2ms(tv2us(&ev->time)) - tap_data->toffset; > - } > -} > - > -static inline bool > -handle_key(struct tap_data *tap_data, > - struct libevdev *evdev, > - const struct input_event *ev) > -{ > - switch (ev->code) { > - case BTN_TOOL_DOUBLETAP: > - case BTN_TOOL_TRIPLETAP: > - case BTN_TOOL_QUADTAP: > - case BTN_TOOL_QUINTTAP: > - error("This tool only supports single-finger taps. > Aborting.\n"); > - return false; > - case BTN_TOUCH: > - handle_btn_touch(tap_data, evdev, ev); > - break; > - default: > - break; > - } > - > - return true; > -} > - > -static inline bool > -handle_abs(struct tap_data *tap_data, > - struct libevdev *evdev, > - const struct input_event *ev) > -{ > - return true; > -} > - > -static inline bool > -handle_event(struct tap_data *tap_data, > - struct libevdev *evdev, > - const struct input_event *ev) > -{ > - bool rc = true; > - > - if (tap_data->toffset == 0) > - tap_data->toffset = us2ms(tv2us(&ev->time)); > - > - switch (ev->type) { > - default: > - error("Unexpected event %s %s (%d, %d). Aborting.\n", > - libevdev_event_type_get_name(ev->type), > - libevdev_event_code_get_name(ev->type, ev->code), > - ev->type, > - ev->code); > - break; > - case EV_KEY: > - rc = handle_key(tap_data, evdev, ev); > - break; > - case EV_ABS: > - rc = handle_abs(tap_data, evdev, ev); > - break; > - case EV_SYN: > - rc = true; > - break; > - } > - > - return rc; > -} > - > -static int > -loop(struct tap_data *data, const char *path) > -{ > - struct libevdev *evdev; > - struct pollfd fds[2]; > - sigset_t mask; > - int fd; > - int rc; > - > - fd = open(path, O_RDONLY|O_NONBLOCK); > - if (fd < 0) { > - error("Failed to open device: %s\n", strerror(errno)); > - return EXIT_FAILURE; > - } > - > - rc = libevdev_new_from_fd(fd, &evdev); > - if (rc < 0) { > - error("Failed to init device: %s\n", strerror(-rc)); > - close(fd); > - return EXIT_FAILURE; > - } > - libevdev_set_clock_id(evdev, CLOCK_MONOTONIC); > - > - fds[0].fd = fd; > - fds[0].events = POLLIN; > - > - sigemptyset(&mask); > - sigaddset(&mask, SIGINT); > - fds[1].fd = signalfd(-1, &mask, SFD_NONBLOCK); > - fds[1].events = POLLIN; > - > - sigprocmask(SIG_BLOCK, &mask, NULL); > - > - rc = EXIT_FAILURE; > - > - error("Ready for recording data.\n" > - "Tap the touchpad multiple times with a single finger > only.\n" > - "For useful data we recommend at least 20 taps.\n" > - "Ctrl+C to exit\n"); > - > - while (poll(fds, 2, -1)) { > - struct input_event ev; > - int rc; > - > - if (fds[1].revents) > - break; > - > - do { > - rc = libevdev_next_event(evdev, > LIBEVDEV_READ_FLAG_NORMAL, &ev); > - if (rc == LIBEVDEV_READ_STATUS_SYNC) { > - error("Error: cannot keep up\n"); > - goto out; > - } else if (rc == LIBEVDEV_READ_STATUS_SUCCESS) { > - if (!handle_event(data, evdev, &ev)) > - goto out; > - } else if (rc != -EAGAIN && rc < 0) { > - error("Error: %s\n", strerror(-rc)); > - goto out; > - } > - } while (rc != -EAGAIN); > - } > - > - rc = EXIT_SUCCESS; > -out: > - close(fd); > - if (evdev) > - libevdev_free(evdev); > - > - printf("\n"); > - > - return rc; > -} > - > -static inline void > -usage(void) > -{ > - printf("Usage: libinput measure touchpad-tap [--help] > [/dev/input/event0]\n"); > -} > - > -int > -main(int argc, char **argv) > -{ > - struct tap_data *tap_data; > - char path[PATH_MAX]; > - int option_index = 0; > - const char *format = "summary"; > - int rc; > - > - while (1) { > - enum opts { > - OPT_HELP, > - OPT_FORMAT, > - }; > - static struct option opts[] = { > - { "help", no_argument, 0, OPT_HELP }, > - { "format", required_argument, 0, OPT_FORMAT}, > - { 0, 0, 0, 0 }, > - }; > - int c; > - > - c = getopt_long(argc, argv, "", opts, &option_index); > - if (c == -1) > - break; > - > - switch(c) { > - case OPT_HELP: > - usage(); > - return EXIT_SUCCESS;; > - case OPT_FORMAT: > - format = optarg; > - break; > - default: > - usage(); > - return EXIT_FAILURE; > - } > - } > - > - if (streq(format, "summary")) { > - print_dat_file = false; > - } else if (streq(format, "dat")) { > - print_dat_file = true; > - } else { > - error("Unknown print format '%s'\n", format); > - return EXIT_FAILURE; > - } > - > - if (optind == argc) { > - if (!find_touchpad_device(path, sizeof(path))) { > - error("Failed to find a touchpad device.\n"); > - return EXIT_FAILURE; > - } > - } else { > - snprintf(path, sizeof(path), "%s", argv[optind]); > - if (!is_touchpad_device(path)) { > - error("Device is not a touchpad.\n"); > - return EXIT_FAILURE; > - } > - } > - > - if (!isatty(STDOUT_FILENO)) { > - pdest = stderr; > - } else { > - pdest = stdout; > - setbuf(stdout, NULL); > - } > - > - tap_data = tap_data_new(); > - rc = loop(tap_data, path); > - > - if (rc != EXIT_SUCCESS) > - goto out; > - > - msg("\n"); > - > - if (print_dat_file) > - print_dat(tap_data); > - else > - print_statistics(tap_data); > - > -out: > - tap_data_free(&tap_data); > - > - return rc; > -} > -- > 2.13.6 > > _______________________________________________ > wayland-devel mailing list > wayland-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/wayland-devel >
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