Mercurial > hg > toybox
annotate toys/sleep.c @ 516:ec7dd0ef7eae
Make floating point support depend on TOYBOX_FLOAT, make 0.1m work.
author | Rob Landley <rob@landley.net> |
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date | Sat, 03 Mar 2012 23:45:01 -0600 |
parents | a057cbaeaf16 |
children | d51be130fda2 |
rev | line source |
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1 /* vi: set sw=4 ts=4: |
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2 * |
118 | 3 * sleep.c - Wait for a number of seconds. |
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Add comments about SUSv3 specs (or lack thereof).
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4 * |
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5 * Copyright 2007 Rob Landley <rob@landley.net> |
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6 * Copyright 2012 Georgi Chorbadzhiyski <georgi@unixsol.org> |
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7 * |
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Update links and add some more spec comments.
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8 * See http://www.opengroup.org/onlinepubs/009695399/utilities/sleep.html |
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9 |
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Move NEWTOY() list from end of toylist.h to generated/newtoys.h.
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10 USE_SLEEP(NEWTOY(sleep, "<1", TOYFLAG_BIN)) |
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11 |
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12 config SLEEP |
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13 bool "sleep" |
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14 default y |
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15 help |
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16 usage: sleep SECONDS |
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17 |
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18 Wait before exiting. |
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19 |
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20 config SLEEP_FLOAT |
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21 bool |
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22 default y |
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23 depends on SLEEP && TOYBOX_FLOAT |
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24 help |
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25 The delay can be a decimal fraction. An optional suffix can be "m" |
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26 (minutes), "h" (hours), "d" (days), or "s" (seconds, the default). |
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27 */ |
118 | 28 |
29 #include "toys.h" | |
30 | |
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Change command main() functions to return void, and exit(toys.exitval) from
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31 void sleep_main(void) |
118 | 32 { |
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33 |
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34 if (!CFG_TOYBOX_FLOAT) toys.exitval = sleep(atol(*toys.optargs)); |
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35 else { |
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36 char *arg; |
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37 double d = strtod(*toys.optargs, &arg); |
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38 unsigned long l; |
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39 |
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40 // Parse suffix |
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41 if (*arg) { |
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42 int imhd[]={60,3600,86400}; |
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43 char *mhd = "mhd", *c = strchr(mhd, *arg); |
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44 if (!arg) error_exit("Unknown suffix '%c'", *arg); |
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45 d *= imhd[c-mhd]; |
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46 } |
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47 |
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48 // wait through the delay |
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49 l = (unsigned long)d; |
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50 d -= l; |
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51 if (l) toys.exitval = sleep(l); |
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52 if (!toys.exitval) toys.exitval = usleep((unsigned long)(d * 1000000)); |
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53 } |
118 | 54 } |