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[mammoth] Create a method for getting initial caps.

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This commit is contained in:
Drew Galbraith 2023-06-16 23:51:49 -07:00
parent 4c936623b5
commit 528723e490
15 changed files with 108 additions and 22 deletions
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22
lib/mammoth/src/port.cpp Normal file
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@ -0,0 +1,22 @@
#include "mammoth/port.h"
#include <zcall.h>
#include "mammoth/debug.h"
Port::Port(uint64_t port_cap) : port_cap_(port_cap) {}
z_err_t Port::PollForIntCap(uint64_t *msg, uint64_t *cap) {
uint64_t bytes, caps, type;
RET_ERR(ZPortPoll(port_cap_, sizeof(uint64_t),
reinterpret_cast<uint8_t *>(msg), /* num_caps= */ 1, cap,
&type, &bytes, &caps));
if (bytes != sizeof(uint64_t)) {
return Z_ERR_INVALID;
}
if (caps != 1) {
return Z_ERR_INVALID;
}
return Z_OK;
}