'Signal safe function for sprintf
So, I am tracking how many times a signal handler is called. However, when I am trying to print the number, I cannot use printf() as it is not signal safe. So, I decided to convert the int to string using sprintf. However that is not signal safe either. So, what would be an alternative way to do so?
Solution 1:[1]
You can use write() which is thread safe. When File descriptor of write is equal to 1 (STDOUT_FILENO), it's for stdout. If you want to print an integer inside write (in a signal safe way) You can write your own code for the purpose of converting integers to decimal strings. Just a simple loop of using %10 and /10 to get rid of the last digit and storing them to a short array.
Sources
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Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | sglbl |