56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
#ifndef KERNEL_CHANNEL_H_
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#define KERNEL_CHANNEL_H_
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#include <kernel/object.h>
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#include <kernel/sched.h>
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struct msg;
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struct channel {
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struct object c_base;
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unsigned int c_id;
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struct waitqueue c_wq;
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struct btree c_msg;
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struct btree_node c_node;
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};
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extern kern_status_t channel_type_init(void);
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extern struct channel *channel_cast(struct object *obj);
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extern struct channel *channel_create(void);
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extern kern_status_t channel_enqueue_msg(
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struct channel *channel,
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struct msg *msg);
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extern kern_status_t channel_recv_msg(
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struct channel *channel,
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kern_msg_t *out_msg,
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unsigned long *irq_flags);
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extern kern_status_t channel_reply_msg(
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struct channel *channel,
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msgid_t id,
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const kern_msg_t *reply,
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unsigned long *irq_flags);
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extern kern_status_t channel_read_msg(
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struct channel *channel,
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msgid_t msg,
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size_t offset,
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struct vm_region *dest_region,
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const kern_iovec_t *dest_iov,
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size_t dest_iov_count,
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size_t *nr_read);
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extern kern_status_t channel_write_msg(
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struct channel *channel,
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msgid_t msg,
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size_t offset,
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struct vm_region *src_region,
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const kern_iovec_t *src_iov,
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size_t src_iov_count,
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size_t *nr_written);
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DEFINE_OBJECT_LOCK_FUNCTION(channel, c_base)
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#endif
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