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From 3a87a4132667f78fc85c54ad89992bbdd02d1e55 Mon Sep 17 00:00:00 2001
From: Carlos Alberto Lopez Perez <clopez@igalia.com>
Date: Thu, 6 Oct 2011 03:12:55 +0200
Subject: [PATCH] Use dynamic structures instead of predefined ones
* The file /proc/acpi/wakeup can have much more than 25 entries.
In my computer (Dell E6420) I have 27 entries.
So instead of using an array of [x] entries better use dynamic
vectors and push the new entries when a new line from the file
is read.
* The name of the device is not ever 4 characters. For example I
have a device called "LID" which is 3 characters long.
Instead of using a fixed size for the device we split the line
on the first tab (\t) and use the first part.
---
src/acpitool.cpp | 23 +++++++++++------------
1 files changed, 11 insertions(+), 12 deletions(-)
diff --git a/src/acpitool.cpp b/src/acpitool.cpp
index 2a610a5..71e01d7 100644
--- a/src/acpitool.cpp
+++ b/src/acpitool.cpp
@@ -460,16 +460,14 @@ int Show_WakeUp_Devices(int verbose)
int Toggle_WakeUp_Device(const int Device, int verbose)
{
- ifstream file_in;
ofstream file_out;
- char *filename, str[50];
- int index = 1;
- char Name[25][5]; // 25 should be enough I guess, I have only 9 so far //
-
+ char *filename; string str;
+ int index = 1; int charindex = 0;
+ std::vector <std::string> Name(index); // Never is enough, use dynamic structures //
filename = "/proc/acpi/wakeup";
- file_in.open(filename);
- if (!file_in)
+ ifstream file_in(filename, ifstream::in);
+ if (!file_in.good()) // if opening is not successful
{
if(!verbose)
{
@@ -484,14 +482,15 @@ int Toggle_WakeUp_Device(const int Device, int verbose)
}
}
- file_in.getline(str, 50); // first line are just headers //
+ getline(file_in, str); // first line are just headers //
while(!file_in.eof()) // count all devices and store their names//
{
- file_in.getline(str, 50);
- if(strlen(str)!=0) // avoid empty last line //
+ getline(file_in, str);
+ if( str.length() != 0 ) // avoid empty last line //
{
- memset(Name[index], '\0', 5);
- strncpy(Name[index], str, 4);
+ charindex = 0; // reset to zero
+ while ( (str[++charindex]!='\t') ); // stop on first tab and get the array index
+ Name.push_back(str.substr(0,charindex)); // Push the name into the vector
index++;
}
}
--
1.7.5.4
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