From ab8c5404d8e6468204cea83c9d20205f0ab122ed Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@kth.se>
Date: Thu, 19 Oct 2017 20:37:55 +0200
Subject: Remove crap, simplify makefile, and relicense
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: Mattias Andrée <maandree@kth.se>
---
src/completion | 11 -----
src/slack.c | 136 ---------------------------------------------------------
2 files changed, 147 deletions(-)
delete mode 100644 src/completion
delete mode 100644 src/slack.c
(limited to 'src')
diff --git a/src/completion b/src/completion
deleted file mode 100644
index 45637e5..0000000
--- a/src/completion
+++ /dev/null
@@ -1,11 +0,0 @@
-(slack
- (default (arg VERB_INTERVAL_OR_COMMAND) (files -r) (suggest cmd)
- (desc 'Specify which command to run'))
-
- (unargumented (options --fatal)
- (complete --fatal)
- (desc 'Fail if the timer slack cannot be set'))
-
- (suggestion cmd (verbatim get GET reset INTERVAL COMMAND))
-)
-
diff --git a/src/slack.c b/src/slack.c
deleted file mode 100644
index 1895e50..0000000
--- a/src/slack.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/**
- * slack — Spawn processes with customised timer slack
- * Copyright © 2014 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 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/prctl.h>
-
-
-
-#define NS (1L)
-#define US (1000L)
-#define MS (1000L * 1000L)
-#define S (1000L * 1000L * 1000L)
-
-
-static void usage(void)
-{
- printf("USAGE: slack (get | GET | ((reset | <interval>) [--fatal] [--] <command...>))\n");
- printf("\n");
- printf("The <interval> must be a positive number optionally with a suffix:\n");
- printf(" ns n nanoseconds (default)\n");
- printf(" µs µ us u microseconds\n");
- printf(" ms m milliseconds\n");
- printf(" s seconds\n");
- printf("\n");
- printf("If `GET' is used rather than `get', the timer slack value will be printed in\n");
- printf("nanoseconds without suffix. `GET' and `get' prints the current timer slack\n");
- printf("value and exits.\n");
- printf("\n");
- printf("`reset` reset the timer slack value to the default (the time slack value for\n");
- printf("the init process (PID 1) has.)\n");
- printf("\n");
- printf("Unless `--fatal` is used, the program will run <command> even if the timer\n");
- printf("slack could not be set.\n");
- printf("\n");
-}
-
-
-int main(int argc, char** argv)
-{
- long slackvalue, r;
- int i, j, fatal = 0;
- char** exec_argv;
-
- if ((argc < 2) || !strcmp(argv[1], "--help") || !strcmp(argv[1], "help"))
- return usage(), argc < 2 ? 1 : 0;
-
- if (!strcmp(argv[1], "get") || !strcmp(argv[1], "GET"))
- {
- const char* suffix;
- if (r = prctl(PR_GET_TIMERSLACK), r < 0)
- perror(*argv);
- else
- {
- if (!strcmp(argv[1], "GET"))
- suffix = "";
- else if (r % S == 0) suffix = "s", r /= S;
- else if (r % MS == 0) suffix = "ms", r /= MS;
- else if (r % US == 0) suffix = "µs", r /= US;
- else suffix = "ns";
- printf("%li%s\n", r, suffix);
- }
- return r > 0 ? 0 : 1;
- }
-
- for (i = 2; i < argc; i++)
- if (!strcmp(argv[i], "--fatal"))
- fatal = 1;
- else if (!strcmp(argv[i], "--"))
- {
- i++;
- break;
- }
- else if (strstr(argv[i], "-") == argv[i])
- return usage(), 1;
- else
- break;
-
- if (i == argc)
- return usage(), 1;
-
- exec_argv = malloc((argc - i + 1) * sizeof(char*));
- if (exec_argv == NULL)
- return perror(*argv), 2;
- exec_argv[argc - i] = NULL;
- for (j = 0; i < argc; j++, i++)
- exec_argv[j] = argv[i];
-
- if (!strcmp(argv[1], "reset"))
- slackvalue = 0;
- else
- {
- char* end;
-
- slackvalue = strtol(argv[1], &end, 10);
- if (end == argv[1])
- return fprintf(stderr, "No slack value specified."), free(exec_argv), 1;
-
- if (!strcmp(end, "n") || !strcmp(end, "ns") || !strcmp(end, "")) slackvalue *= NS;
- else if (!strcmp(end, "µ") || !strcmp(end, "µs")) slackvalue *= US;
- else if (!strcmp(end, "u") || !strcmp(end, "us")) slackvalue *= US;
- else if (!strcmp(end, "m") || !strcmp(end, "ms")) slackvalue *= MS;
- else if (!strcmp(end, "s")) slackvalue *= S;
- else
- return fprintf(stderr, "Unrecognised suffix for slack value."), free(exec_argv), 1;
-
- if (slackvalue <= 0)
- return fprintf(stderr, "Invalid slack value: %lins", slackvalue), free(exec_argv), 1;
- }
-
- if (r = prctl(PR_SET_TIMERSLACK, slackvalue), r < 0)
- if (perror(*argv), fatal)
- return free(exec_argv), 2;
-
- execvp(*exec_argv, exec_argv);
- perror(*argv);
- free(exec_argv);
- return 2;
-}
-
--
cgit v1.2.3-70-g09d2