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nanokernel: Add fiber_config structure and wrapper

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Many drivers need to start fibers whose parameters are based on user
configuration.  Make it easier to specify such parameters by creating a
fiber_config structure and a wrapper to use it.

Change-Id: I26917ada71acbc676c0f32b6ee081aff7bb1d6d8
Signed-off-by: Vlad Dogaru <vlad.dogaru@intel.com>
This commit is contained in:
Vlad Dogaru 2016-05-04 12:06:56 +03:00 • committed by Benjamin Walsh
commit d217705329
1 changed files with 53 additions and 0 deletions
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53
include/nanokernel.h
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@ -230,6 +230,45 @@ extern void fiber_yield(void);
*/
extern void fiber_abort(void);
/**
* @brief Fiber configuration structure.
*
* Parameters such as stack size and fiber priority are often
* user configurable. This structure makes it simple to specify such a
* configuration.
*/
struct fiber_config {
char *stack;
unsigned stack_size;
unsigned prio;
};
/**
* @brief Start a fiber based on a @ref fiber_config, from fiber context.
*/
static inline nano_thread_id_t
fiber_fiber_start_config(const struct fiber_config *config,
nano_fiber_entry_t entry,
int arg1, int arg2, unsigned options)
{
return fiber_fiber_start(config->stack, config->stack_size,
entry, arg1, arg2, config->prio, options);
}
/**
* @brief Start a fiber based on a @ref fiber_config.
*
* This routine can be called from either a fiber or a task.
*/
static inline nano_thread_id_t
fiber_start_config(const struct fiber_config *config,
nano_fiber_entry_t entry,
int arg1, int arg2, unsigned options)
{
return fiber_start(config->stack, config->stack_size, entry,
arg1, arg2, config->prio, options);
}
#ifdef CONFIG_NANO_TIMEOUTS
/**
@ -374,6 +413,19 @@ extern void fiber_fiber_delayed_start_cancel(nano_thread_id_t handle);
extern nano_thread_id_t task_fiber_start(char *pStack, unsigned int stackSize,
nano_fiber_entry_t entry, int arg1, int arg2, unsigned prio,
unsigned options);
/**
* @brief Start a fiber based on a @ref fiber_config, from task context.
*/
static inline nano_thread_id_t
task_fiber_start_config(const struct fiber_config *config,
nano_fiber_entry_t entry,
int arg1, int arg2, unsigned options)
{
return task_fiber_start(config->stack, config->stack_size,
entry, arg1, arg2, config->prio, options);
}
#ifdef CONFIG_NANO_TIMEOUTS
/**
@ -386,6 +438,7 @@ extern nano_thread_id_t task_fiber_delayed_start(char *stack,
nano_fiber_entry_t entry_point, int param1,
int param2, unsigned int priority,
unsigned int options, int32_t timeout_in_ticks);
/**
* @brief Cancel a delayed fiber start from a task.
*