X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fkern%2Fproc_p.h;h=d99d5fc187d6090eea283304d43c3a49e881d1e5;hb=0ae40112b9e0f2c42e89e14e9abe7d866c63d36a;hp=0d6a94f153eed4102f2257defa18ed4f36eff9ce;hpb=40c25a4b1d0f1c23478c2d681b74662de968f671;p=bertos.git diff --git a/bertos/kern/proc_p.h b/bertos/kern/proc_p.h index 0d6a94f1..d99d5fc1 100644 --- a/bertos/kern/proc_p.h +++ b/bertos/kern/proc_p.h @@ -47,14 +47,18 @@ #include -#if CONFIG_KERN_PREEMPTIVE +#if CONFIG_KERN_PREEMPT #include // XXX #endif typedef struct Process { +#if CONFIG_KERN_PRI + PriNode link; /**< Link Process into scheduler lists */ +#else Node link; /**< Link Process into scheduler lists */ - cpustack_t *stack; /**< Per-process SP */ +#endif + cpu_stack_t *stack; /**< Per-process SP */ iptr_t user_data; /**< Custom data passed to the process */ #if CONFIG_KERN_SIGNALS @@ -67,11 +71,11 @@ typedef struct Process #endif #if CONFIG_KERN_HEAP | CONFIG_KERN_MONITOR | (ARCH & ARCH_EMUL) - cpustack_t *stack_base; /**< Base of process stack */ + cpu_stack_t *stack_base; /**< Base of process stack */ size_t stack_size; /**< Size of process stack */ #endif -#if CONFIG_KERN_PREEMPTIVE +#if CONFIG_KERN_PREEMPT ucontext_t context; #endif @@ -100,28 +104,34 @@ extern REGISTER Process *CurrentProcess; /** * Track ready processes. * - * Access to this list must be protected with a proc_forbid() / proc_premit() - * pair, or with SCHED_ATOMIC() + * Access to this list must be performed with interrupts disabled */ extern REGISTER List ProcReadyList; +#if CONFIG_KERN_PRI + #define SCHED_ENQUEUE_INTERNAL(proc) LIST_ENQUEUE(&ProcReadyList, &(proc)->link) +#else + #define SCHED_ENQUEUE_INTERNAL(proc) ADDTAIL(&ProcReadyList, &(proc)->link) +#endif /** - * Enqueue a task in the ready list. + * Enqueue a process in the ready list. * * Always use this macro to instert a process in the ready list, as its * might vary to implement a different scheduling algorithms. * - * \note This macro is *NOT* protected against the scheduler. Access to - * this list must be performed with interrupts disabled. + * \note Access to the scheduler ready list must be performed with + * interrupts disabled. */ #define SCHED_ENQUEUE(proc) do { \ + IRQ_ASSERT_DISABLED(); \ LIST_ASSERT_VALID(&ProcReadyList); \ - ADDTAIL(&ProcReadyList, &(proc)->link); \ + SCHED_ENQUEUE_INTERNAL(proc); \ } while (0) -/** Schedule to another process *without* adding the current to the ready list. */ -void proc_schedule(void); + +/// Schedule another process *without* adding the current one to the ready list. +void proc_switch(void); #if CONFIG_KERN_PREEMPT void proc_entry(void (*user_entry)(void));