FreeCalypso > hg > freecalypso-tools
annotate ffstools/cal2text/mkdir.c @ 497:74610c4f10f7
target-utils: added 10 ms delay at the end of abb_power_off()
The deosmification of the ABB access code (replacement of osmo_delay_ms()
bogus delays with correctly-timed ones, which are significantly shorter)
had one annoying side effect: when executing the poweroff command from
any of the programs, one last '=' prompt character was being sent (and
received by the x86 host) as the Calypso board powers off. With delays
being shorter now, the abb_power_off() function was returning and the
standalone program's main loop was printing its prompt before the Iota chip
fully executed the switch-off sequence!
I thought about inserting an endless tight loop at the end of the
abb_power_off() function, but the implemented solution of a 10 ms delay
is a little nicer IMO because if the DEVOFF operation doesn't happen for
some reason in a manual hacking scenario, there won't be an artificial
blocker in the form of a tight loop keeping us from further poking around.
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 25 May 2019 20:44:05 +0000 |
parents | d41edd329670 |
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1 #include <sys/types.h> |
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2 #include <sys/stat.h> |
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3 #include <stdio.h> |
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4 #include <stdlib.h> |
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5 #include <unistd.h> |
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6 |
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7 mkdir_existok(pathname) |
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8 char *pathname; |
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9 { |
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10 int rc; |
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11 struct stat st; |
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12 |
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13 rc = stat(pathname, &st); |
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14 if (rc < 0) { |
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15 rc = mkdir(pathname, 0777); |
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16 if (rc < 0) { |
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17 perror(pathname); |
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18 exit(1); |
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19 } |
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20 return(0); |
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21 } else { |
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22 if (S_ISDIR(st.st_mode)) |
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23 return(0); |
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24 else { |
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25 fprintf(stderr, |
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26 "error: %s already exists and is not a directory\n", |
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27 pathname); |
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28 exit(1); |
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29 } |
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30 } |
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31 } |