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Config

Config

Coost uses co.flag to define config items for the coroutine module. Please refer to co.flag documents for detailed usage.

co_hook_log

DEF_bool(co_hook_log, false, ">>#1 print log for API hooks");
  • Print API hook related logs, default is false.

{{< hint warning >}} Coost v3.0.1 renamed hook_log to co_hook_log. {{< /hint >}}

co_sched_log

DEF_bool(co_sched_log, false, ">>#1 print logs for coroutine schedulers");
  • Print debug logs for coroutine scheduling, default is false.

{{< hint warning >}} Coost v3.0.1 renamed co_debug_log to co_sched_log. {{< /hint >}}

co_sched_num

DEF_uint32(co_sched_num, os::cpunum(), ">>#1 number of coroutine schedulers");
  • The number of coroutine scheduling threads, which defaults to the number of system CPU cores. In the current implementation, its maximum value is also the number of system CPU cores.

co_stack_num

DEF_uint32(co_stack_num, 8, ">>#1 number of stacks per scheduler, must be power of 2");
  • Added in v3.0.1, the number of shared coroutine stacks for each scheduler, must be power of 2, and is 8 by default.

co_stack_size

DEF_uint32(co_stack_size, 1024 * 1024, ">>#1 size of the stack shared by coroutines");
  • Coroutine stack size, default is 1M.