diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/completion | 11 | ||||
| -rw-r--r-- | src/sleep-until.c | 131 |
2 files changed, 0 insertions, 142 deletions
diff --git a/src/completion b/src/completion deleted file mode 100644 index 7876f18..0000000 --- a/src/completion +++ /dev/null @@ -1,11 +0,0 @@ -(sleep-until - (default (arg CLOCK_OR_TIME) (files -0) (suggest clock) - (desc 'Select clock or exit time')) - - (suggestion clock (verbatim CLOCK_REALTIME - CLOCK_MONOTONIC - CLOCK_BOOTTIME - CLOCK_REALTIME_ALARM - CLOCK_BOOTTIME_ALARM)) -) - diff --git a/src/sleep-until.c b/src/sleep-until.c deleted file mode 100644 index e06b552..0000000 --- a/src/sleep-until.c +++ /dev/null @@ -1,131 +0,0 @@ -/** - * sleep-until – Sleeps until a specified time - * - * Copyright © 2015 Mattias Andrée (maandree@member.fsf.org) - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU Affero General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Affero General Public License for more details. - * - * You should have received a copy of the GNU Affero General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ -#include <sys/timerfd.h> -#include <string.h> -#include <stdlib.h> -#include <stdint.h> -#include <stdio.h> -#include <unistd.h> -#include <errno.h> - - -int main(int argc, char* argv[]) -{ - char* argv0; - char float_part[10]; - struct itimerspec value; - struct itimerspec largest_value; - int i, fd = -1, clocks = 0; - uint64_t _expirations; - int clockid = CLOCK_REALTIME; - const char* clockstr = "CLOCK_REALTIME"; - - if (argc < 2) - return 0; - - argv0 = argv[0]; - argc--, argv++; - - memset(&value, 0, sizeof(value)); - float_part[9] = '\0'; - for (i = 0; i < argc; i++) - { - char* p1 = argv[i]; - char* p2; - char excess; - size_t len; - - if (strstr(p1, "CLOCK_") != p1) - goto parse_time; -$>cat /usr/include/bits/time.h | grep '^ *# *define *CLOCK_' | grep -Po 'CLOCK_[^[:blank:]]*' | -$>while read c; do - else if (!strcmp(p1, "${c}")) - clockid = ${c}, clockstr = "${c}"; -$>done - else - clockid = -1, clockstr = "invalid"; - clocks++; - continue; - - parse_time: - if ((p2 = strchr(p1, '.'))) - *p2++ = '\0'; - - value.it_value.tv_sec = (time_t)atoll(p1); - - if (p2) - { - len = strlen(p2); - memset(float_part, '0', 9 * sizeof(char)); - excess = len > 9 ? p2[9] : '0'; - len = len > 9 ? 9 : len; - memcpy(float_part + 9 - len, p2, len * sizeof(char)); - value.it_value.tv_nsec = atol(float_part); - if ((excess >= '5') && (value.it_value.tv_nsec++ == 999999999L)) - value.it_value.tv_nsec = 0, value.it_value.tv_sec++; - } - - if (i == clocks) - largest_value = value; - else if (value.it_value.tv_sec > largest_value.it_value.tv_sec) - largest_value = value; - else if (value.it_value.tv_sec == largest_value.it_value.tv_sec) - if (value.it_value.tv_nsec > largest_value.it_value.tv_nsec) - largest_value = value; - } - - if (clocks == argc) - return 0; - - fd = timerfd_create(clockid, 0); - if (fd < 0) - goto fail; - if (timerfd_settime(fd, TFD_TIMER_ABSTIME, &largest_value, NULL)) - goto fail; - - if (clock_gettime(clockid, &(value.it_value)) == 0) - fprintf(stderr, "%s: sleeping until %lli.%09li (current time: %lli.%09li, clock: %s)\n", - argv0, (long long int)(largest_value.it_value.tv_sec), largest_value.it_value.tv_nsec, - (long long int)(value.it_value.tv_sec), value.it_value.tv_nsec, clockstr); - - for (;;) - { - if (clock_gettime(clockid, &(value.it_value))) - goto fail; - if (value.it_value.tv_sec > largest_value.it_value.tv_sec) - break; - if (value.it_value.tv_sec == largest_value.it_value.tv_sec) - if (value.it_value.tv_nsec >= largest_value.it_value.tv_nsec) - break; - if (read(fd, &_expirations, (size_t)8) < 8) - { - if (errno == EINTR) - continue; - goto fail; - } - } - - close(fd); - return 0; - fail: - perror(argv0); - if (fd >= 0) close(fd); - return 1; -} - |