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[kernel] Add a timeout to endpoint recieve syscalls

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This also required adding support for multiple wait conditions on a
thread, so wait_type is an enum_bitfield now.

I really need a real clock.
This commit is contained in:
Justin C. Miller
2022-01-15 17:48:19 -08:00
parent 2dd78beb92
commit 19f9496889
8 changed files with 81 additions and 31 deletions
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8
src/kernel/syscalls/endpoint.cpp
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@@ -27,7 +27,7 @@ endpoint_send(j6_handle_t handle, uint64_t tag, const void * data, size_t data_l
}
j6_status_t
endpoint_receive(j6_handle_t handle, uint64_t * tag, void * data, size_t * data_len)
endpoint_receive(j6_handle_t handle, uint64_t * tag, void * data, size_t * data_len, uint64_t timeout)
{
if (!tag || !data_len || (*data_len && !data))
return j6_err_invalid_arg;
@@ -37,14 +37,14 @@ endpoint_receive(j6_handle_t handle, uint64_t * tag, void * data, size_t * data_
j6_tag_t out_tag = j6_tag_invalid;
size_t out_len = *data_len;
j6_status_t s = e->receive(&out_tag, data, &out_len);
j6_status_t s = e->receive(&out_tag, data, &out_len, timeout);
*tag = out_tag;
*data_len = out_len;
return s;
}
j6_status_t
endpoint_sendrecv(j6_handle_t handle, uint64_t * tag, void * data, size_t * data_len)
endpoint_sendrecv(j6_handle_t handle, uint64_t * tag, void * data, size_t * data_len, uint64_t timeout)
{
if (!tag || (*tag & j6_tag_system_flag))
return j6_err_invalid_arg;
@@ -58,7 +58,7 @@ endpoint_sendrecv(j6_handle_t handle, uint64_t * tag, void * data, size_t * data
j6_tag_t out_tag = j6_tag_invalid;
size_t out_len = *data_len;
j6_status_t s = e->receive(&out_tag, data, &out_len);
j6_status_t s = e->receive(&out_tag, data, &out_len, timeout);
*tag = out_tag;
*data_len = out_len;
return s;