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Ian Campbell
1a4af67d32
The latter is GPL which makes the whole of mini-os GPL rather than BSD as intended. In tree users are all GPL or GPL-compatible but we should fix this so that mini-os is BSD. Do so by using the same BSD sys/queue.h as we use in libxl. Tested with the builtin mini-os test app and qemu stubdomain, both of which appear to still function as expected. Move tools/libxl/external and the associated sed script to tools/include/xen-external to allow more sensible access from mini-os. Also add s/NULL/0/ in the sed script due to NULL not always being defined in stubdom code when mini-os/wait.h is included. As well as the obvious ABI changes there are a few API updates associated with the change: - struct rw_semaphore.wait_list is unused - remove_waiter needs to take the wait_queue_head The latter requires a qemu update, so there is also a QEMU_TAG update in this changeset. I sprinkled some extra-emacs local variables around the files I edited which didn't have them. I think this should be backported to the stable branches since external users of mini-os may have been mislead into thinking they could safely link mini-os against GPL-incompatible code. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Committed-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
#ifndef __SCHED_H__
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#define __SCHED_H__
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#include <mini-os/list.h>
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#include <mini-os/time.h>
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#include <mini-os/arch_sched.h>
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#ifdef HAVE_LIBC
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#include <sys/reent.h>
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#endif
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struct thread
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{
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char *name;
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char *stack;
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#if !defined(__ia64__)
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/* keep in that order */
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unsigned long sp; /* Stack pointer */
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unsigned long ip; /* Instruction pointer */
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#else /* !defined(__ia64__) */
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thread_regs_t regs;
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#endif /* !defined(__ia64__) */
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MINIOS_TAILQ_ENTRY(struct thread) thread_list;
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uint32_t flags;
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s_time_t wakeup_time;
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#ifdef HAVE_LIBC
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struct _reent reent;
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#endif
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};
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extern struct thread *idle_thread;
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void idle_thread_fn(void *unused);
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#define RUNNABLE_FLAG 0x00000001
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#define is_runnable(_thread) (_thread->flags & RUNNABLE_FLAG)
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#define set_runnable(_thread) (_thread->flags |= RUNNABLE_FLAG)
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#define clear_runnable(_thread) (_thread->flags &= ~RUNNABLE_FLAG)
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#define switch_threads(prev, next) arch_switch_threads(prev, next)
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/* Architecture specific setup of thread creation. */
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struct thread* arch_create_thread(char *name, void (*function)(void *),
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void *data);
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void init_sched(void);
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void run_idle_thread(void);
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struct thread* create_thread(char *name, void (*function)(void *), void *data);
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void exit_thread(void) __attribute__((noreturn));
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void schedule(void);
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#ifdef __INSIDE_MINIOS__
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#define current get_current()
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#endif
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void wake(struct thread *thread);
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void block(struct thread *thread);
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void msleep(uint32_t millisecs);
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#endif /* __SCHED_H__ */
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