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Listing Wifi networks in an infinite loop #46

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johnnyman727 opened this issue Jul 19, 2014 · 2 comments · May be fixed by #127
Open

Listing Wifi networks in an infinite loop #46

johnnyman727 opened this issue Jul 19, 2014 · 2 comments · May be fixed by #127
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bug Priority 2

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@johnnyman727
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I don't have a repro test case yet, but sometimes when running tessel wifi -l, Tessel will output the names of the same networks in a loop, forever.
@jiahuang
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I found this to be more likely to happen if there are a lot of wifi networks around.

@johnnyman727
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It's pretty obvious that the problem here is the while(true) loop.

Our current process continues to call wlan_ioctl_get_scan_results to fetch information about each network "while they are available". When a Tessel is in an area with a bunch of WiFi networks, I think it's possible, that the CC3000 updates the scan results faster than we print them out, leading to an infinite loop. Instead, we should use the number of results as the range of a for loop that prints out the available networks.

@ghost ghost linked a pull request Jan 17, 2015 that will close this issue
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Network discovery cap
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@johnnyman727 @jiahuang