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* '''-z''' - Decreases the value by 1.0 every second; unsets at zero | * '''-z''' - Decreases the value by 1.0 every second; unsets at zero | ||
* '''-uN''' - Removes the item/value after N seconds | * '''-uN''' - Removes the item/value after N seconds | ||
| − | * '''-k''' - Keeps the remaining time left from the -uN | + | * '''-k''' - Keeps the remaining time left from the -uN switch (undocumented in help file) |
* '''-b''' - Treats the value as a binary variable | * '''-b''' - Treats the value as a binary variable | ||
* '''-c''' - Truncates the &bvar at the first null value | * '''-c''' - Truncates the &bvar at the first null value | ||
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* Creates item named "time" in hashtable "test". If table "test" did not already exist, that table is first created with 50 buckets. If it already existed, the number of buckets remains the same, and any other existing item/data are not affected. | * Creates item named "time" in hashtable "test". If table "test" did not already exist, that table is first created with 50 buckets. If it already existed, the number of buckets remains the same, and any other existing item/data are not affected. | ||
| − | + | /hadd -z test countdown 123.45 | |
* Creates item named "countdown" with the value 123.45 then decrements it by 1 each second, preserving fractions, as long as the number remains positive. If decrementing results in the value being zero or negative, the item is unset. At creation, the item is given the unset value of 2^31-1 seconds in the future, regardless of the value. This item is not guaranteed to be unset 124 seconds from now, because /hinc or /hdec used with the -k switch can change the value while preserving the countdown behavior. | * Creates item named "countdown" with the value 123.45 then decrements it by 1 each second, preserving fractions, as long as the number remains positive. If decrementing results in the value being zero or negative, the item is unset. At creation, the item is given the unset value of 2^31-1 seconds in the future, regardless of the value. This item is not guaranteed to be unset 124 seconds from now, because /hinc or /hdec used with the -k switch can change the value while preserving the countdown behavior. | ||
| − | + | /hadd -u30 Voting Open 1 | |
| − | + | * creates an item named "Open" in existing table "Voting" containing the value 1, which unsets 30 seconds in the future. | |
| − | + | /hadd -k Voting Open 11 | |
| − | + | If the item does not already exist, the -k switch has no effect. If the item already exists, and if it has a non-zero number of seconds to be unset in the future, the item's data value is updated to 11 without altering the unset countdown. If the item had been created using the -z switch, it retains the non-zero countdown for unset (in excess of 2 billion seconds) but loses the property of decrementing by 1 each second. | |
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//hfree -w test | hadd -mz test item1 33 | hadd test item2 44 | hadd -u30 test item3 55 | hsave -u test deleteme.txt | //hfree -w test | hadd -mz test item1 33 | hadd test item2 44 | hadd -u30 test item3 55 | hsave -u test deleteme.txt | ||
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//bset &var1 1 97 98 99 00 100 101 | hadd -smbc test bintest &var1 | noop $hget(test,bintest,&var2) | echo -a $bvar(&var2,0) $bvar(&var2,1-) | //bset &var1 1 97 98 99 00 100 101 | hadd -smbc test bintest &var1 | noop $hget(test,bintest,&var2) | echo -a $bvar(&var2,0) $bvar(&var2,1-) | ||
| − | * same except the contents of item 'bintest' is truncated, containing only the bytes prior to the first 0x00 byte if any. | + | * same except the contents of item 'bintest' is truncated, containing only the 3 bytes prior to the first 0x00 byte if any. |
//hfree -w test | hadd -m test $ $+ version $+ $chr(32) $+ foo % $+ variable | echo 4 -a item= $hget(test,1).item data= $hget(test,1).data | //hfree -w test | hadd -m test $ $+ version $+ $chr(32) $+ foo % $+ variable | echo 4 -a item= $hget(test,1).item data= $hget(test,1).data | ||
