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bf35921abb
Use strncmp() combined with a strlen() will give better performance
than a strstr in worst case. Especially when the match prefix is a
constant and not a variable.
While we are at it, replace the match() function in linux/Battery.c,
which uses a naive algorithm, with a macro that does better job by
utilizing Strings_startWith().
$ gcc --version | head -n 1
gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
$ uname -m
x86_64
$ size htop.old htop.new
text data bss dec hex filename
137929 15112 3776 156817 26491 htop.old
137784 15104 3776 156664 263f8 htop.new
Signed-off-by: Kang-Che Sung <explorer09 @ gmail.com>
35 lines
936 B
C
35 lines
936 B
C
/* Do not edit this file. It was automatically generated. */
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#ifndef HEADER_Battery
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#define HEADER_Battery
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/*
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htop - linux/Battery.h
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(C) 2004-2014 Hisham H. Muhammad
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Released under the GNU GPL, see the COPYING file
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in the source distribution for its full text.
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Linux battery readings written by Ian P. Hands (iphands@gmail.com, ihands@redhat.com).
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*/
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#define SYS_POWERSUPPLY_DIR "/sys/class/power_supply"
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// ----------------------------------------
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// READ FROM /proc
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// ----------------------------------------
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// This implementation reading from from /proc/acpi is really inefficient,
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// but I think this is on the way out so I did not rewrite it.
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// The /sys implementation below does things the right way.
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// ----------------------------------------
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// READ FROM /sys
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// ----------------------------------------
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void Battery_getData(double* level, ACPresence* isOnAC);
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#endif
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