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[kernel] Track capability reference counts

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First pass at reference-counting capabilities.
This commit is contained in:
Justin C. Miller
2023-01-14 15:40:18 -08:00
parent 7150e11ed0
commit e93f48e2f7
6 changed files with 94 additions and 14 deletions
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7
src/kernel/syscalls/helpers.h
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@@ -30,7 +30,7 @@ j6_status_t get_handle(j6_handle_t id, j6_cap_t caps, T *&object)
return j6_status_ok;
}
capability *capdata = g_cap_table.find(id);
capability *capdata = g_cap_table.retain(id);
if (!capdata || capdata->type != T::type)
return j6_err_invalid_arg;
@@ -56,7 +56,7 @@ inline j6_status_t get_handle<obj::kobject>(j6_handle_t id, j6_cap_t caps, obj::
return j6_status_ok;
}
capability *capdata = g_cap_table.find(id);
capability *capdata = g_cap_table.retain(id);
if (!capdata)
return j6_err_invalid_arg;
@@ -68,4 +68,7 @@ inline j6_status_t get_handle<obj::kobject>(j6_handle_t id, j6_cap_t caps, obj::
return j6_status_ok;
}
inline void release_handle(j6_handle_t id) { g_cap_table.release(id); }
inline void release_handle(j6_handle_t *id) { g_cap_table.release(*id); }
} // namespace syscalls