Set Resource Parameters

Activities for dynamically modifying a resource's server capacity or queue size, by name or a previously selected one. Resources must be defined in the simulation environment (see add_resource).

set_capacity(.trj, resource, value, mod = c(NA, "+", "*"))

set_capacity_selected(.trj, value, id = 0, mod = c(NA, "+", "*"))

set_queue_size(.trj, resource, value, mod = c(NA, "+", "*"))

set_queue_size_selected(.trj, value, id = 0, mod = c(NA, "+", "*"))

Arguments

.trj	the trajectory object.
resource	the name of the resource.
value	new value to set.
mod	if set, values modify the attributes rather than substituting them.
id	selection identifier for nested usage.

Value

Returns the trajectory object.

See also

select, seize, release, seize_selected, release_selected, get_capacity, get_queue_size

Examples

## a resource with a queue size equal to the number of arrivals waiting
traj <- trajectory() %>%
  set_queue_size("res", 1, mod="+") %>%
  seize("res") %>%
  set_queue_size("res", -1, mod="+") %>%
  timeout(10) %>%
  release("res")

simmer() %>%
  add_resource("res", 1, 0) %>%
  add_generator("dummy", traj, at(0:2)) %>%
  run() %>%
  get_mon_resources()
#>    resource time server queue capacity queue_size system limit replication
#> 1       res    0      0     0        1          1      0     2           1
#> 2       res    0      1     0        1          1      1     2           1
#> 3       res    0      1     0        1          0      1     1           1
#> 4       res    1      1     0        1          1      1     2           1
#> 5       res    1      1     1        1          1      2     2           1
#> 6       res    2      1     1        1          2      2     3           1
#> 7       res    2      1     2        1          2      3     3           1
#> 8       res   10      1     1        1          2      2     3           1
#> 9       res   10      1     1        1          1      2     2           1
#> 10      res   20      1     0        1          1      1     2           1
#> 11      res   20      1     0        1          0      1     1           1
#> 12      res   30      0     0        1          0      0     1           1